diff --git a/.env b/.env
index 304416b4f..06cb4f3b4 100644
--- a/.env
+++ b/.env
@@ -29,16 +29,9 @@ CONSOLE_LOG=false
 CONSOLE_ERROR_LOG=true
 LOG_FILE_CONTENT=false
 
-# Server commands
-REINITIALIZE_COMMAND=sdnacGYGdw756dnxasxbGGGjsdbd5576576gfdsxgvbnFFF
-
 PATH_TO_CANVAS_APP=./CanvasApp
 PATH_TO_FILES_COMPONENT=./Files-Component/src
-PATH_TO_WEB_SERVER=./WebServer/
+PATH_TO_WEB_SERVER=./BackendServers/
 
 APP_SCHEMA_PATH=./
 WORKSPACE_PATH=./
-
-GATEWAY_ENDPOINT=https://demo-api-dev.superalgos.org/graphql
-
-
diff --git a/WebServer/Scripts/AppLoader.js b/BackendServers/WebServer/AppLoader.js
similarity index 100%
rename from WebServer/Scripts/AppLoader.js
rename to BackendServers/WebServer/AppLoader.js
diff --git a/WebServer/Scripts/AppPreLoader.js b/BackendServers/WebServer/AppPreLoader.js
similarity index 98%
rename from WebServer/Scripts/AppPreLoader.js
rename to BackendServers/WebServer/AppPreLoader.js
index 17da86bdc..2e150a408 100644
--- a/WebServer/Scripts/AppPreLoader.js
+++ b/BackendServers/WebServer/AppPreLoader.js
@@ -127,7 +127,7 @@ function loadSuperalgos() {
 
             if (INFO_LOG === true) { console.log(spacePad(MODULE_NAME, 50) + " : " + "[INFO] loadModules -> Entering function."); }
 
-            let path = window.canvasApp.urlPrefix + "Scripts/AppLoader.js";
+            let path = window.canvasApp.urlPrefix + "WebServer/AppLoader.js";
 
             REQUIREJS([path], onRequired);
 
diff --git a/WebServer/Images/Icons/style-01/150-next-phase-event.png b/BackendServers/WebServer/Images/Icons/style-01/150-next-phase-event.png
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rename from WebServer/Images/Icons/style-01/150-next-phase-event.png
rename to BackendServers/WebServer/Images/Icons/style-01/150-next-phase-event.png
diff --git a/WebServer/Images/Icons/style-01/analysis-1.png b/BackendServers/WebServer/Images/Icons/style-01/analysis-1.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/analysis-1.png
rename to BackendServers/WebServer/Images/Icons/style-01/analysis-1.png
diff --git a/WebServer/Images/Icons/style-01/analysis.png b/BackendServers/WebServer/Images/Icons/style-01/analysis.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/analysis.png
rename to BackendServers/WebServer/Images/Icons/style-01/analysis.png
diff --git a/WebServer/Images/Icons/style-01/angle-to-parent-000.png b/BackendServers/WebServer/Images/Icons/style-01/angle-to-parent-000.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/angle-to-parent-000.png
rename to BackendServers/WebServer/Images/Icons/style-01/angle-to-parent-000.png
diff --git a/WebServer/Images/Icons/style-01/angle-to-parent-045.png b/BackendServers/WebServer/Images/Icons/style-01/angle-to-parent-045.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/angle-to-parent-045.png
rename to BackendServers/WebServer/Images/Icons/style-01/angle-to-parent-045.png
diff --git a/WebServer/Images/Icons/style-01/angle-to-parent-090.png b/BackendServers/WebServer/Images/Icons/style-01/angle-to-parent-090.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/angle-to-parent-090.png
rename to BackendServers/WebServer/Images/Icons/style-01/angle-to-parent-090.png
diff --git a/WebServer/Images/Icons/style-01/angle-to-parent-180.png b/BackendServers/WebServer/Images/Icons/style-01/angle-to-parent-180.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/angle-to-parent-180.png
rename to BackendServers/WebServer/Images/Icons/style-01/angle-to-parent-180.png
diff --git a/WebServer/Images/Icons/style-01/angle-to-parent-360.png b/BackendServers/WebServer/Images/Icons/style-01/angle-to-parent-360.png
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rename from WebServer/Images/Icons/style-01/angle-to-parent-360.png
rename to BackendServers/WebServer/Images/Icons/style-01/angle-to-parent-360.png
diff --git a/WebServer/Images/Icons/style-01/approve.png b/BackendServers/WebServer/Images/Icons/style-01/approve.png
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rename from WebServer/Images/Icons/style-01/approve.png
rename to BackendServers/WebServer/Images/Icons/style-01/approve.png
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rename to BackendServers/WebServer/Images/Icons/style-01/arrangement-concave.png
diff --git a/WebServer/Images/Icons/style-01/arrangement-convex.png b/BackendServers/WebServer/Images/Icons/style-01/arrangement-convex.png
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rename to BackendServers/WebServer/Images/Icons/style-01/arrangement-convex.png
diff --git a/WebServer/Images/Icons/style-01/arrangement-horizontal-bottom.png b/BackendServers/WebServer/Images/Icons/style-01/arrangement-horizontal-bottom.png
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rename to BackendServers/WebServer/Images/Icons/style-01/arrangement-horizontal-bottom.png
diff --git a/WebServer/Images/Icons/style-01/arrangement-horizontal-top.png b/BackendServers/WebServer/Images/Icons/style-01/arrangement-horizontal-top.png
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diff --git a/WebServer/Images/Icons/style-01/arrangement-vertical-left.png b/BackendServers/WebServer/Images/Icons/style-01/arrangement-vertical-left.png
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diff --git a/WebServer/Images/Icons/style-01/arrangement-vertical-right.png b/BackendServers/WebServer/Images/Icons/style-01/arrangement-vertical-right.png
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diff --git a/WebServer/Images/Icons/style-01/attractive.png b/BackendServers/WebServer/Images/Icons/style-01/attractive.png
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rename to BackendServers/WebServer/Images/Icons/style-01/attractive.png
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diff --git a/WebServer/Images/Icons/style-01/bittrex.png b/BackendServers/WebServer/Images/Icons/style-01/bittrex.png
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diff --git a/WebServer/Images/Icons/style-01/toggle-auto-time-scale-manual.png b/BackendServers/WebServer/Images/Icons/style-01/toggle-auto-time-scale-manual.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/toggle-auto-time-scale-manual.png
rename to BackendServers/WebServer/Images/Icons/style-01/toggle-auto-time-scale-manual.png
diff --git a/WebServer/Images/Icons/style-01/toggle-panel-off.png b/BackendServers/WebServer/Images/Icons/style-01/toggle-panel-off.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/toggle-panel-off.png
rename to BackendServers/WebServer/Images/Icons/style-01/toggle-panel-off.png
diff --git a/WebServer/Images/Icons/style-01/tools.png b/BackendServers/WebServer/Images/Icons/style-01/tools.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/tools.png
rename to BackendServers/WebServer/Images/Icons/style-01/tools.png
diff --git a/WebServer/Images/Icons/style-01/trend.png b/BackendServers/WebServer/Images/Icons/style-01/trend.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/trend.png
rename to BackendServers/WebServer/Images/Icons/style-01/trend.png
diff --git a/WebServer/Images/Icons/style-01/tron.png b/BackendServers/WebServer/Images/Icons/style-01/tron.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/tron.png
rename to BackendServers/WebServer/Images/Icons/style-01/tron.png
diff --git a/WebServer/Images/Icons/style-01/upbit.png b/BackendServers/WebServer/Images/Icons/style-01/upbit.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/upbit.png
rename to BackendServers/WebServer/Images/Icons/style-01/upbit.png
diff --git a/WebServer/Images/Icons/style-01/upload.png b/BackendServers/WebServer/Images/Icons/style-01/upload.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/upload.png
rename to BackendServers/WebServer/Images/Icons/style-01/upload.png
diff --git a/WebServer/Images/Icons/style-01/us-dollar.png b/BackendServers/WebServer/Images/Icons/style-01/us-dollar.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/us-dollar.png
rename to BackendServers/WebServer/Images/Icons/style-01/us-dollar.png
diff --git a/WebServer/Images/Icons/style-01/user-account.png b/BackendServers/WebServer/Images/Icons/style-01/user-account.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/user-account.png
rename to BackendServers/WebServer/Images/Icons/style-01/user-account.png
diff --git a/WebServer/Images/Icons/style-01/user-assets.png b/BackendServers/WebServer/Images/Icons/style-01/user-assets.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/user-assets.png
rename to BackendServers/WebServer/Images/Icons/style-01/user-assets.png
diff --git a/WebServer/Images/Icons/style-01/user-keys.png b/BackendServers/WebServer/Images/Icons/style-01/user-keys.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/user-keys.png
rename to BackendServers/WebServer/Images/Icons/style-01/user-keys.png
diff --git a/WebServer/Images/Icons/style-01/vector.png b/BackendServers/WebServer/Images/Icons/style-01/vector.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/vector.png
rename to BackendServers/WebServer/Images/Icons/style-01/vector.png
diff --git a/WebServer/Images/Icons/style-01/video-player.png b/BackendServers/WebServer/Images/Icons/style-01/video-player.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/video-player.png
rename to BackendServers/WebServer/Images/Icons/style-01/video-player.png
diff --git a/WebServer/Images/Icons/style-01/viewport.png b/BackendServers/WebServer/Images/Icons/style-01/viewport.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/viewport.png
rename to BackendServers/WebServer/Images/Icons/style-01/viewport.png
diff --git a/WebServer/Images/Icons/style-01/volume.png b/BackendServers/WebServer/Images/Icons/style-01/volume.png
similarity index 100%
rename from WebServer/Images/Icons/style-01/volume.png
rename to BackendServers/WebServer/Images/Icons/style-01/volume.png
diff --git a/WebServer/Images/superalgos-header-background.png b/BackendServers/WebServer/Images/superalgos-header-background.png
similarity index 100%
rename from WebServer/Images/superalgos-header-background.png
rename to BackendServers/WebServer/Images/superalgos-header-background.png
diff --git a/WebServer/Images/superalgos-logo-for-color-background.png b/BackendServers/WebServer/Images/superalgos-logo-for-color-background.png
similarity index 100%
rename from WebServer/Images/superalgos-logo-for-color-background.png
rename to BackendServers/WebServer/Images/superalgos-logo-for-color-background.png
diff --git a/WebServer/Images/superalgos-logo.png b/BackendServers/WebServer/Images/superalgos-logo.png
similarity index 100%
rename from WebServer/Images/superalgos-logo.png
rename to BackendServers/WebServer/Images/superalgos-logo.png
diff --git a/WebServer/Images/superalgos-platform.jpg b/BackendServers/WebServer/Images/superalgos-platform.jpg
similarity index 100%
rename from WebServer/Images/superalgos-platform.jpg
rename to BackendServers/WebServer/Images/superalgos-platform.jpg
diff --git a/WebServer/LegacyPlotter.js b/BackendServers/WebServer/LegacyPlotter.js
similarity index 100%
rename from WebServer/LegacyPlotter.js
rename to BackendServers/WebServer/LegacyPlotter.js
diff --git a/WebServer/PlotterPanel.js b/BackendServers/WebServer/PlotterPanel.js
similarity index 100%
rename from WebServer/PlotterPanel.js
rename to BackendServers/WebServer/PlotterPanel.js
diff --git a/WebServer/externalScripts/CCapture.all.min.js b/BackendServers/WebServer/externalScripts/CCapture.all.min.js
similarity index 100%
rename from WebServer/externalScripts/CCapture.all.min.js
rename to BackendServers/WebServer/externalScripts/CCapture.all.min.js
diff --git a/WebServer/externalScripts/gif.worker.js b/BackendServers/WebServer/externalScripts/gif.worker.js
similarity index 100%
rename from WebServer/externalScripts/gif.worker.js
rename to BackendServers/WebServer/externalScripts/gif.worker.js
diff --git a/WebServer/index.html b/BackendServers/WebServer/index.html
similarity index 94%
rename from WebServer/index.html
rename to BackendServers/WebServer/index.html
index f70ea60e7..40277d726 100644
--- a/WebServer/index.html
+++ b/BackendServers/WebServer/index.html
@@ -16,8 +16,8 @@
           integrity="sha384-DNOHZ68U8hZfKXOrtjWvjxusGo9WQnrNx2sqG0tfsghAvtVlRW3tvkXWZh58N9jp" crossorigin="anonymous">
     <link rel="shortcut icon" type="image/png/ico" href="Images/favicon.ico" />
 
-    <script type="text/javascript" src="Scripts/require.js"></script>
-    <script type="text/javascript" src="Scripts/AppPreLoader.js"></script>
+    <script type="text/javascript" src="WebServer/require.js"></script>
+    <script type="text/javascript" src="WebServer/AppPreLoader.js"></script>
     <script src="externalScripts/CCapture.all.min.js"></script>
 
     <script type="text/javascript">
diff --git a/WebServer/Scripts/require.js b/BackendServers/WebServer/require.js
similarity index 100%
rename from WebServer/Scripts/require.js
rename to BackendServers/WebServer/require.js
diff --git a/WebServer/node_modules/balanced-match/index.js b/BackendServers/node_modules/balanced-match/index.js
similarity index 100%
rename from WebServer/node_modules/balanced-match/index.js
rename to BackendServers/node_modules/balanced-match/index.js
diff --git a/WebServer/node_modules/balanced-match/package.json b/BackendServers/node_modules/balanced-match/package.json
similarity index 80%
rename from WebServer/node_modules/balanced-match/package.json
rename to BackendServers/node_modules/balanced-match/package.json
index 659e384db..ced994b7f 100644
--- a/WebServer/node_modules/balanced-match/package.json
+++ b/BackendServers/node_modules/balanced-match/package.json
@@ -1,32 +1,27 @@
 {
-  "_args": [
-    [
-      "balanced-match@1.0.0",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "balanced-match@1.0.0",
+  "_from": "balanced-match@^1.0.0",
   "_id": "balanced-match@1.0.0",
   "_inBundle": false,
   "_integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
   "_location": "/balanced-match",
   "_phantomChildren": {},
   "_requested": {
-    "type": "version",
+    "type": "range",
     "registry": true,
-    "raw": "balanced-match@1.0.0",
+    "raw": "balanced-match@^1.0.0",
     "name": "balanced-match",
     "escapedName": "balanced-match",
-    "rawSpec": "1.0.0",
+    "rawSpec": "^1.0.0",
     "saveSpec": null,
-    "fetchSpec": "1.0.0"
+    "fetchSpec": "^1.0.0"
   },
   "_requiredBy": [
     "/brace-expansion"
   ],
   "_resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-  "_spec": "1.0.0",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_shasum": "89b4d199ab2bee49de164ea02b89ce462d71b767",
+  "_spec": "balanced-match@^1.0.0",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers\\node_modules\\brace-expansion",
   "author": {
     "name": "Julian Gruber",
     "email": "mail@juliangruber.com",
@@ -35,7 +30,9 @@
   "bugs": {
     "url": "https://github.com/juliangruber/balanced-match/issues"
   },
+  "bundleDependencies": false,
   "dependencies": {},
+  "deprecated": false,
   "description": "Match balanced character pairs, like \"{\" and \"}\"",
   "devDependencies": {
     "matcha": "^0.7.0",
diff --git a/WebServer/node_modules/brace-expansion/index.js b/BackendServers/node_modules/brace-expansion/index.js
similarity index 100%
rename from WebServer/node_modules/brace-expansion/index.js
rename to BackendServers/node_modules/brace-expansion/index.js
diff --git a/WebServer/node_modules/brace-expansion/package.json b/BackendServers/node_modules/brace-expansion/package.json
similarity index 81%
rename from WebServer/node_modules/brace-expansion/package.json
rename to BackendServers/node_modules/brace-expansion/package.json
index 04a2a77df..e0e83e6f3 100644
--- a/WebServer/node_modules/brace-expansion/package.json
+++ b/BackendServers/node_modules/brace-expansion/package.json
@@ -1,32 +1,27 @@
 {
-  "_args": [
-    [
-      "brace-expansion@1.1.11",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "brace-expansion@1.1.11",
+  "_from": "brace-expansion@^1.1.7",
   "_id": "brace-expansion@1.1.11",
   "_inBundle": false,
   "_integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
   "_location": "/brace-expansion",
   "_phantomChildren": {},
   "_requested": {
-    "type": "version",
+    "type": "range",
     "registry": true,
-    "raw": "brace-expansion@1.1.11",
+    "raw": "brace-expansion@^1.1.7",
     "name": "brace-expansion",
     "escapedName": "brace-expansion",
-    "rawSpec": "1.1.11",
+    "rawSpec": "^1.1.7",
     "saveSpec": null,
-    "fetchSpec": "1.1.11"
+    "fetchSpec": "^1.1.7"
   },
   "_requiredBy": [
     "/minimatch"
   ],
   "_resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
-  "_spec": "1.1.11",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_shasum": "3c7fcbf529d87226f3d2f52b966ff5271eb441dd",
+  "_spec": "brace-expansion@^1.1.7",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers\\node_modules\\minimatch",
   "author": {
     "name": "Julian Gruber",
     "email": "mail@juliangruber.com",
@@ -35,10 +30,12 @@
   "bugs": {
     "url": "https://github.com/juliangruber/brace-expansion/issues"
   },
+  "bundleDependencies": false,
   "dependencies": {
     "balanced-match": "^1.0.0",
     "concat-map": "0.0.1"
   },
+  "deprecated": false,
   "description": "Brace expansion as known from sh/bash",
   "devDependencies": {
     "matcha": "^0.7.0",
diff --git a/WebServer/node_modules/ccxt/build/cleanup-old-tags.js b/BackendServers/node_modules/ccxt/build/cleanup-old-tags.js
similarity index 96%
rename from WebServer/node_modules/ccxt/build/cleanup-old-tags.js
rename to BackendServers/node_modules/ccxt/build/cleanup-old-tags.js
index d807ab18a..d304afd1d 100644
--- a/WebServer/node_modules/ccxt/build/cleanup-old-tags.js
+++ b/BackendServers/node_modules/ccxt/build/cleanup-old-tags.js
@@ -26,9 +26,9 @@ function cleanupOldTags () {
 
     const tagsByMajorMinor = values (groupBy (tags, 'key')).sort ((a, b) => a[0].key - b[0].key)
 
-    // Preserve all tags for first 3 minor versions
+    // Preserve all tags for first 5 minor versions
 
-    for (let i = 0; i < 3; i++) {
+    for (let i = 0; i < 5; i++) {
 
         const tags = tagsByMajorMinor.pop ()
 
diff --git a/WebServer/node_modules/ccxt/build/countries.js b/BackendServers/node_modules/ccxt/build/countries.js
similarity index 100%
rename from WebServer/node_modules/ccxt/build/countries.js
rename to BackendServers/node_modules/ccxt/build/countries.js
diff --git a/WebServer/node_modules/ccxt/build/export-exchanges.js b/BackendServers/node_modules/ccxt/build/export-exchanges.js
similarity index 53%
rename from WebServer/node_modules/ccxt/build/export-exchanges.js
rename to BackendServers/node_modules/ccxt/build/export-exchanges.js
index 43236de2f..e46845674 100644
--- a/WebServer/node_modules/ccxt/build/export-exchanges.js
+++ b/BackendServers/node_modules/ccxt/build/export-exchanges.js
@@ -93,7 +93,7 @@ function createExchanges (ids) {
 // ----------------------------------------------------------------------------
 // TODO: REWRITE THIS ↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓
 
-function exportSupportedAndCertifiedExchanges (exchanges, wikiPath) {
+function exportSupportedAndCertifiedExchanges (exchanges, { allExchangesPaths, certifiedExchangesPaths, exchangesByCountriesPaths, proExchangesPaths }) {
 
     // ............................................................................
     // markup constants and helper functions
@@ -109,33 +109,35 @@ function exportSupportedAndCertifiedExchanges (exchanges, wikiPath) {
     // ----------------------------------------------------------------------------
     // list all supported exchanges
 
-    const exchangesNotListedInDocs = []
+    const exchangesNotListedInDocs = [ 'hitbtc2' ]
 
-    let tableData = values (exchanges)
-        .filter (exchange => !exchangesNotListedInDocs.includes (exchange.id))
-        .map (exchange => {
-            let logo = exchange.urls['logo']
-            let website = Array.isArray (exchange.urls.www) ? exchange.urls.www[0] : exchange.urls.www
-            let url = exchange.urls.referral || website
-            let doc = Array.isArray (exchange.urls.doc) ? exchange.urls.doc[0] : exchange.urls.doc
-            let version = exchange.version ? exchange.version : '\*'
-            let matches = version.match (/[^0-9]*([0-9].*)/)
-            if (matches) {
-                version = matches[1];
-            }
-            return [
-                '[![' + exchange.id + '](' + logo + ')](' + url + ')',
-                exchange.id,
-                '[' + exchange.name + '](' + url + ')',
-                version,
-                '[API](' + doc + ')',
-                exchange.certified ? ccxtCertifiedBadge : '',
-                exchange.pro ? ccxtProBadge : '',
-            ]
-        })
+    function makeTableData (exchanges) {
+        return (
+            values (exchanges)
+                .filter (exchange => !exchangesNotListedInDocs.includes (exchange.id))
+                .map (exchange => {
+                    let logo = exchange.urls['logo']
+                    let website = Array.isArray (exchange.urls.www) ? exchange.urls.www[0] : exchange.urls.www
+                    let url = exchange.urls.referral || website
+                    let doc = Array.isArray (exchange.urls.doc) ? exchange.urls.doc[0] : exchange.urls.doc
+                    let version = exchange.version ? exchange.version : '\*'
+                    let matches = version.match (/[^0-9]*([0-9].*)/)
+                    if (matches) {
+                        version = matches[1];
+                    }
+                    return [
+                        '[![' + exchange.id + '](' + logo + ')](' + url + ')',
+                        exchange.id,
+                        '[' + exchange.name + '](' + url + ')',
+                        version,
+                        '[API](' + doc + ')',
+                        exchange.certified ? ccxtCertifiedBadge : '',
+                        exchange.pro ? ccxtProBadge : '',
+                    ]
+                })
+        )
+    }
 
-    // prepend the table header
-    tableData.splice (0, 0, tableHeadings)
 
     function makeTable (jsonArray) {
         let table = asTable.configure ({ 'delimiter': ' | ' }) (jsonArray)
@@ -148,88 +150,128 @@ function exportSupportedAndCertifiedExchanges (exchanges, wikiPath) {
         return lines.map (line => '|' + line + '|').join ("\n")
     }
 
-    const exchangesTable = makeTable (tableData)
-    const numExchanges = keys (exchanges).length
-    const beginning = "The ccxt library currently supports the following "
-    const ending = " cryptocurrency exchange markets and trading APIs:\n\n"
-    const totalString = beginning + numExchanges + ending
-    const allExchanges = totalString + exchangesTable + "$1"
-    const allExchangesRegex = new RegExp ("[^\n]+[\n]{2}\\|[^`]+\\|([\n][\n]|[\n]$|$)", 'm')
-    logExportExchanges ('README.md', allExchangesRegex, allExchanges)
-    logExportExchanges (wikiPath + '/Manual.md', allExchangesRegex, allExchanges)
-    logExportExchanges (wikiPath + '/Exchange-Markets.md', allExchangesRegex, allExchanges)
+    if (allExchangesPaths) {
 
-    const certifiedFieldIndex = tableHeadings.indexOf ('certified')
-    const certified = tableData.filter ((x) => x[certifiedFieldIndex] !== '' )
-    const certifiedExchangesRegex = new RegExp ("^(## Certified Cryptocurrency Exchanges\n{3})(?:\\|.+\\|$\n)+", 'm')
-    const certifiedExchangesTable = makeTable (certified)
-    const certifiedExchanges = '$1' + certifiedExchangesTable + "\n"
-    logExportExchanges ('README.md', certifiedExchangesRegex, certifiedExchanges)
+        const tableData = makeTableData (exchanges)
+        const numExchanges = tableData.length
+        // prepend the table header
+        tableData.splice (0, 0, tableHeadings)
+        const exchangesTable = makeTable (tableData)
+        const beginning = "The CCXT library currently supports the following "
+        const ending = " cryptocurrency exchange markets and trading APIs:\n\n"
+        const totalString = beginning + numExchanges + ending
+        const allExchanges = totalString + exchangesTable + "$1"
+        const allExchangesRegex = new RegExp ("[^\n]+[\n]{2}\\|[^`]+\\|([\n][\n]|[\n]$|$)", 'm')
 
+        for (const path of allExchangesPaths) {
+            logExportExchanges (path, allExchangesRegex, allExchanges)
+        }
 
-    let exchangesByCountries = []
-    keys (countries).forEach (code => {
-        let country = countries[code]
-        let result = []
-        keys (exchanges).forEach (id => {
-            let exchange = exchanges[id]
-            let logo = exchange.urls['logo']
-            let website = Array.isArray (exchange.urls.www) ? exchange.urls.www[0] : exchange.urls.www
-            let url = exchange.urls.referral || website
-            let doc = Array.isArray (exchange.urls.doc) ? exchange.urls.doc[0] : exchange.urls.doc
-            let version = exchange.version ? exchange.version : '\*'
-            let matches = version.match (/[^0-9]*([0-9].*)/)
-            if (matches)
-                version = matches[1];
-            let shouldInclude = false
-            if (Array.isArray (exchange.countries)) {
-                if (exchange.countries.indexOf (code) > -1)
-                    shouldInclude = true
+        // logExportExchanges ('README.md', allExchangesRegex, allExchanges)
+        // logExportExchanges (wikiPath + '/Manual.md', allExchangesRegex, allExchanges)
+        // logExportExchanges (wikiPath + '/Exchange-Markets.md', allExchangesRegex, allExchanges)
+    }
+
+    if (proExchangesPaths) {
+        const pro = values (exchanges).filter (exchange => exchange.pro)
+        const tableData = makeTableData (pro)
+        const numExchanges = tableData.length
+        // prepend the table header
+        tableData.splice (0, 0, tableHeadings)
+        const exchangesTable = makeTable (tableData)
+        const beginning = "The CCXT Pro library currently supports the following "
+        const ending = " cryptocurrency exchange markets and WebSocket trading APIs:\n\n"
+        const totalString = beginning + numExchanges + ending
+        const proExchanges = totalString + exchangesTable + "$1"
+        const proExchangesRegex = new RegExp ("[^\n]+[\n]{2}\\|[^`]+\\|([\n][\n]|[\n]$|$)", 'm')
+
+        for (const path of proExchangesPaths) {
+            logExportExchanges (path, proExchangesRegex, proExchanges)
+        }
+    }
+
+    if (certifiedExchangesPaths) {
+        const certified = values (exchanges).filter (exchange => exchange.certified)
+        const tableData = makeTableData (certified)
+        // prepend the table header
+        tableData.splice (0, 0, tableHeadings)
+        const certifiedExchangesRegex = new RegExp ("^(## Certified Cryptocurrency Exchanges\n{3})(?:\\|.+\\|$\n)+", 'm')
+        const certifiedExchangesTable = makeTable (tableData)
+        const certifiedExchanges = '$1' + certifiedExchangesTable + "\n"
+
+        for (const path of certifiedExchangesPaths) {
+            logExportExchanges (path, certifiedExchangesRegex, certifiedExchanges)
+        }
+
+        // logExportExchanges ('README.md', certifiedExchangesRegex, certifiedExchanges)
+    }
+
+    if (exchangesByCountriesPaths) {
+        let exchangesByCountries = []
+        keys (countries).forEach (code => {
+            let country = countries[code]
+            let result = []
+            keys (exchanges).forEach (id => {
+                let exchange = exchanges[id]
+                let logo = exchange.urls['logo']
+                let website = Array.isArray (exchange.urls.www) ? exchange.urls.www[0] : exchange.urls.www
+                let url = exchange.urls.referral || website
+                let doc = Array.isArray (exchange.urls.doc) ? exchange.urls.doc[0] : exchange.urls.doc
+                let version = exchange.version ? exchange.version : '\*'
+                let matches = version.match (/[^0-9]*([0-9].*)/)
+                if (matches)
+                    version = matches[1];
+                let shouldInclude = false
+                if (Array.isArray (exchange.countries)) {
+                    if (exchange.countries.indexOf (code) > -1)
+                        shouldInclude = true
+                } else {
+                    if (code == exchange.countries)
+                        shouldInclude = true
+                }
+                if (shouldInclude) {
+                    let entry = [
+                        country,
+                        '[![' + exchange.id + '](' + logo + ')](' + url + ')',
+                        exchange.id,
+                        '[' + exchange.name + '](' + url + ')',
+                        version,
+                        '[API](' + doc + ')',
+                        // doesn't fit in width
+                        // exchange.certified ? ccxtCertifiedBadge : '',
+                    ]
+                    result.push (entry)
+                }
+            })
+            exchangesByCountries = exchangesByCountries.concat (result)
+        });
+
+        const countryKeyIndex = exchangesByCountryHeading.indexOf ('country / region')
+        exchangesByCountries = exchangesByCountries.sort ((a, b) => {
+            const countryA = a[countryKeyIndex].toLowerCase ()
+            const countryB = b[countryKeyIndex].toLowerCase ()
+            if (countryA > countryB) {
+                return 1
+            } else if (countryA < countryB) {
+                return -1;
             } else {
-                if (code == exchange.countries)
-                    shouldInclude = true
-            }
-            if (shouldInclude) {
-                let entry = [
-                    country,
-                    '[![' + exchange.id + '](' + logo + ')](' + url + ')',
-                    exchange.id,
-                    '[' + exchange.name + '](' + url + ')',
-                    version,
-                    '[API](' + doc + ')',
-                    // doesn't fit in width
-                    // exchange.certified ? ccxtCertifiedBadge : '',
-                ]
-                result.push (entry)
+                if (a['id'] > b['id'])
+                    return 1;
+                else if (a['id'] < b['id'])
+                    return -1;
+                else
+                    return 0;
             }
         })
-        exchangesByCountries = exchangesByCountries.concat (result)
-    });
 
-    let countryKeyIndex = exchangesByCountryHeading.indexOf ('country / region')
-    exchangesByCountries = exchangesByCountries.sort ((a, b) => {
-        let countryA = a[countryKeyIndex].toLowerCase ()
-        let countryB = b[countryKeyIndex].toLowerCase ()
-        if (countryA > countryB) {
-            return 1
-        } else if (countryA < countryB) {
-            return -1;
-        } else {
-            if (a['id'] > b['id'])
-                return 1;
-            else if (a['id'] < b['id'])
-                return -1;
-            else
-                return 0;
+        exchangesByCountries.splice (0, 0, exchangesByCountryHeading)
+        const lines = makeTable (exchangesByCountries)
+        const result = "# Exchanges By Country\n\nThe ccxt library currently supports the following cryptocurrency exchange markets and trading APIs:\n\n" + lines + "\n\n"
+        for (const path of exchangesByCountriesPaths) {
+            fs.truncateSync (path)
+            fs.writeFileSync (path, result)
         }
-    })
-
-    exchangesByCountries.splice (0, 0, exchangesByCountryHeading)
-    let lines = makeTable (exchangesByCountries)
-    let result = "# Exchanges By Country\n\nThe ccxt library currently supports the following cryptocurrency exchange markets and trading APIs:\n\n" + lines + "\n\n"
-    let filename = wikiPath + '/Exchange-Markets-By-Country.md'
-    fs.truncateSync (filename)
-    fs.writeFileSync (filename, result)
+    }
 }
 
 // TODO: REWRITE THIS ↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑
@@ -237,7 +279,9 @@ function exportSupportedAndCertifiedExchanges (exchanges, wikiPath) {
 
 function exportExchangeIdsToExchangesJson (exchanges) {
     log.bright ('Exporting exchange ids to'.cyan, 'exchanges.json'.yellow)
-    fs.writeFileSync ('exchanges.json', JSON.stringify ({ ids: keys (exchanges) }, null, 4))
+    const ids = keys (exchanges)
+    console.log (ids)
+    fs.writeFileSync ('exchanges.json', JSON.stringify ({ ids }, null, 4))
 }
 
 // ----------------------------------------------------------------------------
@@ -284,19 +328,26 @@ function exportKeywordsToPackageJson (exchanges) {
     }
 
     packageJSON.keywords = [...keywords]
-    fs.writeFileSync ('./package.json', JSON.stringify (packageJSON, null, 2))
+    fs.writeFileSync ('./package.json', JSON.stringify (packageJSON, null, 2) + "\n")
 }
 
 // ----------------------------------------------------------------------------
 
+function flatten (nested, result = []) {
+    for (const key in nested) {
+        result.push (key)
+        if (Object.keys (nested[key]).length)
+            flatten (nested[key], result)
+    }
+    return result
+}
+
+
 function exportEverything () {
-
-    const wikiPath = 'wiki'
-        , gitWikiPath = 'build/ccxt.wiki'
-
-    cloneGitHubWiki (gitWikiPath)
-
     const ids = getIncludedExchangeIds ()
+    const errorHierarchy = require ('../js/base/errorHierarchy.js')
+    const flat = flatten (errorHierarchy)
+    flat.push ('error_hierarchy')
 
     const replacements = [
         {
@@ -314,6 +365,16 @@ function exportEverything () {
             regex: /(?:from ccxt\.[^\.]+ import [^\s]+\s+\# noqa\: F401[\r]?[\n])+[\r]?[\n]exchanges/,
             replacement: ids.map (id => ('from ccxt.' + id + ' import ' + id).padEnd (60) + '# noqa: F401').join ("\n") + "\n\nexchanges",
         },
+        {
+            file: './python/ccxt/__init__.py',
+            regex: /(?:from ccxt\.base\.errors import [^\s]+\s+\# noqa\: F401[\r]?[\n])+[\r]?[\n]/,
+            replacement: flat.map (error => ('from ccxt.base.errors' + ' import ' + error).padEnd (60) + '# noqa: F401').join ("\n") + "\n\n",
+        },
+        {
+            file: './python/ccxt/async_support/__init__.py',
+            regex: /(?:from ccxt\.base\.errors import [^\s]+\s+\# noqa\: F401[\r]?[\n])+[\r]?[\n]/,
+            replacement: flat.map (error => ('from ccxt.base.errors' + ' import ' + error).padEnd (60) + '# noqa: F401').join ("\n") + "\n\n",
+        },
         {
             file: './python/ccxt/async_support/__init__.py',
             regex: /(?:from ccxt\.async_support\.[^\.]+ import [^\s]+\s+\# noqa\: F401[\r]?[\n])+[\r]?[\n]exchanges/,
@@ -336,7 +397,28 @@ function exportEverything () {
     // strategically placed exactly here (we can require it AFTER the export)
     const exchanges = createExchanges (ids)
 
-    exportSupportedAndCertifiedExchanges (exchanges, wikiPath)
+    const wikiPath = 'wiki'
+        , gitWikiPath = 'build/ccxt.wiki'
+
+    cloneGitHubWiki (gitWikiPath)
+
+    exportSupportedAndCertifiedExchanges (exchanges, {
+        allExchangesPaths: [
+            'README.md',
+            wikiPath + '/Manual.md',
+            wikiPath + '/Exchange-Markets.md'
+        ],
+        certifiedExchangesPaths: [
+            'README.md',
+        ],
+        exchangesByCountriesPaths: [
+            wikiPath + '/Exchange-Markets-By-Country.md'
+        ],
+        proExchangesPaths: [
+            wikiPath + '/ccxt.pro.manual.md',
+        ],
+    })
+
     exportExchangeIdsToExchangesJson (exchanges)
     exportWikiToGitHub (wikiPath, gitWikiPath)
     exportKeywordsToPackageJson (exchanges)
diff --git a/WebServer/node_modules/ccxt/build/fs.js b/BackendServers/node_modules/ccxt/build/fs.js
similarity index 100%
rename from WebServer/node_modules/ccxt/build/fs.js
rename to BackendServers/node_modules/ccxt/build/fs.js
diff --git a/WebServer/node_modules/ccxt/build/transpile.js b/BackendServers/node_modules/ccxt/build/transpile.js
similarity index 95%
rename from WebServer/node_modules/ccxt/build/transpile.js
rename to BackendServers/node_modules/ccxt/build/transpile.js
index de4a0205e..b55ffae59 100644
--- a/WebServer/node_modules/ccxt/build/transpile.js
+++ b/BackendServers/node_modules/ccxt/build/transpile.js
@@ -5,16 +5,23 @@
 "use strict";
 
 const fs = require ('fs')
-    , log = require ('ololog')
+    , log = require ('ololog').unlimited
     , _ = require ('ansicolor').nice
     , errors = require ('../js/base/errors.js')
-    , { unCamelCase, precisionConstants, safeString } = require ('../js/base/functions.js')
+    , functions = require ('../js/base/functions.js')
+    , {
+        unCamelCase,
+        precisionConstants,
+        safeString,
+        unique,
+    } = functions
     , { basename } = require ('path')
     , {
         createFolderRecursively,
         replaceInFile,
         overwriteFile,
     } = require ('./fs.js')
+    , Exchange = require ('../js/base/Exchange.js')
 
 class Transpiler {
 
@@ -60,6 +67,7 @@ class Transpiler {
             [ /\.parseTrades\s/g, '.parse_trades'],
             [ /\.parseTrade\s/g, '.parse_trade'],
             [ /\.parseTradingViewOHLCV\s/g, '.parse_trading_view_ohlcv'],
+            [ /\.convertTradingViewToOHLCV\s/g, '.convert_trading_view_to_ohlcv'],
             [ /\.parseTransaction\s/g, '.parse_transaction'],
             [ /\.parseTransactions\s/g, '.parse_transactions'],
             [ /\.parseOrderBook\s/g, '.parse_order_book'],
@@ -299,7 +307,9 @@ class Transpiler {
             [ /this\.stringToBase64\s/g, 'base64_encode' ],
             [ /this\.binaryToBase16\s/g, 'bin2hex' ],
             [ /this\.base64ToBinary\s/g, 'base64_decode' ],
-            [ /this\.deepExtend\s/g, 'array_replace_recursive'],
+            // deepExtend is commented for PHP because it does not overwrite linear arrays
+            // a proper \ccxt\Exchange::deep_extend() base method is implemented instead
+            // [ /this\.deepExtend\s/g, 'array_replace_recursive'],
             [ /(\w+)\.shift\s*\(\)/g, 'array_shift($1)' ],
             [ /(\w+)\.pop\s*\(\)/g, 'array_pop($1)' ],
             [ /Number\.MAX_SAFE_INTEGER/g, 'PHP_INT_MAX' ],
@@ -382,12 +392,27 @@ class Transpiler {
         ])
     }
 
+    getBaseClass () {
+        return new Exchange ()
+    }
+
+    getBaseMethods () {
+        const baseExchange = this.getBaseClass ()
+        let object = baseExchange
+        let properties = []
+        while (object !== Object.prototype) {
+            properties = properties.concat (Object.getOwnPropertyNames (object))
+            object = Object.getPrototypeOf (object)
+        }
+        return properties.filter (x => typeof baseExchange[x] === 'function')
+    }
+
     getPythonBaseMethods () {
-        return []
+        return this.getBaseMethods ()
     }
 
     getPHPBaseMethods () {
-        return []
+        return this.getBaseMethods ()
     }
 
     //-------------------------------------------------------------------------
@@ -589,10 +614,10 @@ class Transpiler {
         methods = methods.concat (this.getPHPBaseMethods ())
 
         for (let method of methods) {
-            const regex = new RegExp ('\\$this->(' + method + ')(\\s\\(|[^a-zA-Z0-9_])', 'g')
+            const regex = new RegExp ('\\$this->(' + method + ')\\s?(\\(|[^a-zA-Z0-9_])', 'g')
             bodyAsString = bodyAsString.replace (regex,
                 (match, p1, p2) => {
-                    return ((p2 === ' (') ?
+                    return ((p2 === '(') ?
                         ('$this->' + unCamelCase (p1) + p2) : // support direct php calls
                         ("array($this, '" + unCamelCase (p1) + "')" + p2)) // as well as passing instance methods as callables
                 })
@@ -748,7 +773,7 @@ class Transpiler {
 
     // ------------------------------------------------------------------------
 
-    transpileDerivedExchangeClass (contents) {
+    transpileDerivedExchangeClass (contents, methodNames = undefined) {
 
         let exchangeClassDeclarationMatches = contents.match (/^module\.exports\s*=\s*class\s+([\S]+)\s+extends\s+([\S]+)\s+{([\s\S]+?)^};*/m)
 
@@ -763,7 +788,7 @@ class Transpiler {
         let python3 = []
         let php = []
 
-        let methodNames = []
+        methodNames = [] // methodNames || []
 
         // run through all methods
         for (let i = 0; i < methods.length; i++) {
@@ -839,7 +864,7 @@ class Transpiler {
 
             // compile signature + body for PHP
             php.push ('');
-            php.push ('    public function ' + method + ' (' + phpArgs + ') {');
+            php.push ('    public function ' + method + '(' + phpArgs + ') {');
             php.push (phpBody);
             php.push ('    }')
 
@@ -866,8 +891,25 @@ class Transpiler {
         try {
 
             const { python2Folder, python3Folder, phpFolder } = options
-            const contents = fs.readFileSync (jsFolder + filename, 'utf8')
-            const { python2, python3, php, className, baseClass } = this.transpileDerivedExchangeClass (contents)
+            const path = jsFolder + filename
+            const contents = fs.readFileSync (path, 'utf8')
+
+            // function getMethodNames (object) {
+            //     let functions = []
+            //     let o = object
+            //     do {
+            //         functions = functions.concat (Object.getOwnPropertyNames (o))
+            //     } while (o = Object.getPrototypeOf (o))
+            //     return unique (functions.filter (f => (typeof object[f] === 'function')))
+            // }
+            // const exchangeClass = require ('.' + path)
+            // const exchange = new exchangeClass ()
+            // const methodNames = getMethodNames (exchange)
+            // const { python2, python3, php, className, baseClass } =
+            //     this.transpileDerivedExchangeClass (contents, methodNames)
+
+            const { python2, python3, php, className, baseClass } =
+                this.transpileDerivedExchangeClass (contents)
 
             log.cyan ('Transpiling from', filename.yellow)
 
@@ -943,9 +985,7 @@ class Transpiler {
 
     // ========================================================================
 
-    exportTypeScriptDeclarations (classes) {
-
-        const file = './ccxt.d.ts'
+    exportTypeScriptDeclarations (file, classes) {
 
         log.bright.cyan ('Exporting TypeScript declarations →', file.yellow)
 
@@ -1134,11 +1174,11 @@ class Transpiler {
             "",
             "",
             "def toWei(amount, decimals):",
-            "    return Exchange.toWei(amount, decimals)",
+            "    return Exchange.to_wei(amount, decimals)",
             "",
             "",
             "def fromWei(amount, decimals):",
-            "    return Exchange.fromWei(amount, decimals)",
+            "    return Exchange.from_wei(amount, decimals)",
             "",
             "",
         ].join ("\n")
@@ -1163,10 +1203,10 @@ class Transpiler {
             "    return Exchange::number_to_string ($x);",
             "}",
             "function toWei ($amount, $decimals) {",
-            "    return Exchange::toWei ($amount, $decimals);",
+            "    return Exchange::to_wei ($amount, $decimals);",
             "}",
             "function fromWei ($amount, $decimals) {",
-            "    return Exchange::fromWei ($amount, $decimals);",
+            "    return Exchange::from_wei ($amount, $decimals);",
             "}",
             "",
         ].join ("\n")
@@ -1274,7 +1314,7 @@ class Transpiler {
 
         // HINT: if we're going to support specific class definitions
         // this process won't work anymore as it will override the definitions
-        this.exportTypeScriptDeclarations (classes)
+        this.exportTypeScriptDeclarations ('./ccxt.d.ts', classes)
 
         //*/
 
diff --git a/WebServer/node_modules/ccxt/build/vss.js b/BackendServers/node_modules/ccxt/build/vss.js
similarity index 100%
rename from WebServer/node_modules/ccxt/build/vss.js
rename to BackendServers/node_modules/ccxt/build/vss.js
diff --git a/WebServer/node_modules/ccxt/ccxt.browser.js b/BackendServers/node_modules/ccxt/ccxt.browser.js
similarity index 100%
rename from WebServer/node_modules/ccxt/ccxt.browser.js
rename to BackendServers/node_modules/ccxt/ccxt.browser.js
diff --git a/WebServer/node_modules/ccxt/ccxt.js b/BackendServers/node_modules/ccxt/ccxt.js
similarity index 95%
rename from WebServer/node_modules/ccxt/ccxt.js
rename to BackendServers/node_modules/ccxt/ccxt.js
index 2d59e35f1..a19d63cc7 100644
--- a/WebServer/node_modules/ccxt/ccxt.js
+++ b/BackendServers/node_modules/ccxt/ccxt.js
@@ -35,7 +35,7 @@ const Exchange  = require ('./js/base/Exchange')
 //-----------------------------------------------------------------------------
 // this is updated by vss.js when building
 
-const version = '1.23.67'
+const version = '1.26.45'
 
 Exchange.ccxtVersion = version
 
@@ -46,6 +46,7 @@ const exchanges = {
     'acx':                     require ('./js/acx.js'),
     'adara':                   require ('./js/adara.js'),
     'anxpro':                  require ('./js/anxpro.js'),
+    'aofex':                   require ('./js/aofex.js'),
     'bcex':                    require ('./js/bcex.js'),
     'bequant':                 require ('./js/bequant.js'),
     'bibox':                   require ('./js/bibox.js'),
@@ -62,7 +63,6 @@ const exchanges = {
     'bitforex':                require ('./js/bitforex.js'),
     'bithumb':                 require ('./js/bithumb.js'),
     'bitkk':                   require ('./js/bitkk.js'),
-    'bitlish':                 require ('./js/bitlish.js'),
     'bitmart':                 require ('./js/bitmart.js'),
     'bitmax':                  require ('./js/bitmax.js'),
     'bitmex':                  require ('./js/bitmex.js'),
@@ -76,17 +76,16 @@ const exchanges = {
     'braziliex':               require ('./js/braziliex.js'),
     'btcalpha':                require ('./js/btcalpha.js'),
     'btcbox':                  require ('./js/btcbox.js'),
-    'btcchina':                require ('./js/btcchina.js'),
     'btcmarkets':              require ('./js/btcmarkets.js'),
     'btctradeim':              require ('./js/btctradeim.js'),
     'btctradeua':              require ('./js/btctradeua.js'),
     'btcturk':                 require ('./js/btcturk.js'),
     'buda':                    require ('./js/buda.js'),
     'bw':                      require ('./js/bw.js'),
+    'bybit':                   require ('./js/bybit.js'),
     'bytetrade':               require ('./js/bytetrade.js'),
     'cex':                     require ('./js/cex.js'),
     'chilebit':                require ('./js/chilebit.js'),
-    'cobinhood':               require ('./js/cobinhood.js'),
     'coinbase':                require ('./js/coinbase.js'),
     'coinbaseprime':           require ('./js/coinbaseprime.js'),
     'coinbasepro':             require ('./js/coinbasepro.js'),
@@ -140,10 +139,8 @@ const exchanges = {
     'mercado':                 require ('./js/mercado.js'),
     'mixcoins':                require ('./js/mixcoins.js'),
     'oceanex':                 require ('./js/oceanex.js'),
-    'okcoincny':               require ('./js/okcoincny.js'),
-    'okcoinusd':               require ('./js/okcoinusd.js'),
+    'okcoin':                  require ('./js/okcoin.js'),
     'okex':                    require ('./js/okex.js'),
-    'okex3':                   require ('./js/okex3.js'),
     'paymium':                 require ('./js/paymium.js'),
     'poloniex':                require ('./js/poloniex.js'),
     'rightbtc':                require ('./js/rightbtc.js'),
diff --git a/WebServer/node_modules/ccxt/dist/ccxt.browser.js b/BackendServers/node_modules/ccxt/dist/ccxt.browser.js
similarity index 93%
rename from WebServer/node_modules/ccxt/dist/ccxt.browser.js
rename to BackendServers/node_modules/ccxt/dist/ccxt.browser.js
index 5541a4c0b..3f0c7ee01 100644
--- a/WebServer/node_modules/ccxt/dist/ccxt.browser.js
+++ b/BackendServers/node_modules/ccxt/dist/ccxt.browser.js
@@ -43,7 +43,7 @@ const Exchange  = require ('./js/base/Exchange')
 //-----------------------------------------------------------------------------
 // this is updated by vss.js when building
 
-const version = '1.23.67'
+const version = '1.26.45'
 
 Exchange.ccxtVersion = version
 
@@ -54,6 +54,7 @@ const exchanges = {
     'acx':                     require ('./js/acx.js'),
     'adara':                   require ('./js/adara.js'),
     'anxpro':                  require ('./js/anxpro.js'),
+    'aofex':                   require ('./js/aofex.js'),
     'bcex':                    require ('./js/bcex.js'),
     'bequant':                 require ('./js/bequant.js'),
     'bibox':                   require ('./js/bibox.js'),
@@ -70,7 +71,6 @@ const exchanges = {
     'bitforex':                require ('./js/bitforex.js'),
     'bithumb':                 require ('./js/bithumb.js'),
     'bitkk':                   require ('./js/bitkk.js'),
-    'bitlish':                 require ('./js/bitlish.js'),
     'bitmart':                 require ('./js/bitmart.js'),
     'bitmax':                  require ('./js/bitmax.js'),
     'bitmex':                  require ('./js/bitmex.js'),
@@ -84,17 +84,16 @@ const exchanges = {
     'braziliex':               require ('./js/braziliex.js'),
     'btcalpha':                require ('./js/btcalpha.js'),
     'btcbox':                  require ('./js/btcbox.js'),
-    'btcchina':                require ('./js/btcchina.js'),
     'btcmarkets':              require ('./js/btcmarkets.js'),
     'btctradeim':              require ('./js/btctradeim.js'),
     'btctradeua':              require ('./js/btctradeua.js'),
     'btcturk':                 require ('./js/btcturk.js'),
     'buda':                    require ('./js/buda.js'),
     'bw':                      require ('./js/bw.js'),
+    'bybit':                   require ('./js/bybit.js'),
     'bytetrade':               require ('./js/bytetrade.js'),
     'cex':                     require ('./js/cex.js'),
     'chilebit':                require ('./js/chilebit.js'),
-    'cobinhood':               require ('./js/cobinhood.js'),
     'coinbase':                require ('./js/coinbase.js'),
     'coinbaseprime':           require ('./js/coinbaseprime.js'),
     'coinbasepro':             require ('./js/coinbasepro.js'),
@@ -148,10 +147,8 @@ const exchanges = {
     'mercado':                 require ('./js/mercado.js'),
     'mixcoins':                require ('./js/mixcoins.js'),
     'oceanex':                 require ('./js/oceanex.js'),
-    'okcoincny':               require ('./js/okcoincny.js'),
-    'okcoinusd':               require ('./js/okcoinusd.js'),
+    'okcoin':                  require ('./js/okcoin.js'),
     'okex':                    require ('./js/okex.js'),
-    'okex3':                   require ('./js/okex3.js'),
     'paymium':                 require ('./js/paymium.js'),
     'poloniex':                require ('./js/poloniex.js'),
     'rightbtc':                require ('./js/rightbtc.js'),
@@ -181,7 +178,7 @@ module.exports = Object.assign ({ version, Exchange, 'exchanges': Object.keys (e
 
 //-----------------------------------------------------------------------------
 
-},{"./js/_1btcxe.js":3,"./js/acx.js":4,"./js/adara.js":5,"./js/anxpro.js":6,"./js/base/Exchange":7,"./js/base/errors":9,"./js/base/functions":10,"./js/bcex.js":21,"./js/bequant.js":22,"./js/bibox.js":23,"./js/bigone.js":24,"./js/binance.js":25,"./js/binanceje.js":26,"./js/binanceus.js":27,"./js/bit2c.js":28,"./js/bitbank.js":29,"./js/bitbay.js":30,"./js/bitfinex.js":31,"./js/bitfinex2.js":32,"./js/bitflyer.js":33,"./js/bitforex.js":34,"./js/bithumb.js":35,"./js/bitkk.js":36,"./js/bitlish.js":37,"./js/bitmart.js":38,"./js/bitmax.js":39,"./js/bitmex.js":40,"./js/bitso.js":41,"./js/bitstamp.js":42,"./js/bitstamp1.js":43,"./js/bittrex.js":44,"./js/bitz.js":45,"./js/bl3p.js":46,"./js/bleutrade.js":47,"./js/braziliex.js":48,"./js/btcalpha.js":49,"./js/btcbox.js":50,"./js/btcchina.js":51,"./js/btcmarkets.js":52,"./js/btctradeim.js":53,"./js/btctradeua.js":54,"./js/btcturk.js":55,"./js/buda.js":56,"./js/bw.js":57,"./js/bytetrade.js":58,"./js/cex.js":59,"./js/chilebit.js":60,"./js/cobinhood.js":61,"./js/coinbase.js":62,"./js/coinbaseprime.js":63,"./js/coinbasepro.js":64,"./js/coincheck.js":65,"./js/coinegg.js":66,"./js/coinex.js":67,"./js/coinfalcon.js":68,"./js/coinfloor.js":69,"./js/coingi.js":70,"./js/coinmarketcap.js":71,"./js/coinmate.js":72,"./js/coinone.js":73,"./js/coinspot.js":74,"./js/coolcoin.js":75,"./js/coss.js":76,"./js/crex24.js":77,"./js/deribit.js":78,"./js/digifinex.js":79,"./js/dsx.js":80,"./js/exmo.js":81,"./js/exx.js":82,"./js/fcoin.js":83,"./js/fcoinjp.js":84,"./js/flowbtc.js":85,"./js/foxbit.js":86,"./js/ftx.js":87,"./js/fybse.js":88,"./js/gateio.js":89,"./js/gemini.js":90,"./js/hitbtc.js":91,"./js/hitbtc2.js":92,"./js/hollaex.js":93,"./js/huobipro.js":94,"./js/huobiru.js":95,"./js/ice3x.js":96,"./js/idex.js":97,"./js/independentreserve.js":98,"./js/indodax.js":99,"./js/itbit.js":100,"./js/kkex.js":101,"./js/kraken.js":102,"./js/kucoin.js":103,"./js/kuna.js":104,"./js/lakebtc.js":105,"./js/latoken.js":106,"./js/lbank.js":107,"./js/liquid.js":108,"./js/livecoin.js":109,"./js/luno.js":110,"./js/lykke.js":111,"./js/mercado.js":112,"./js/mixcoins.js":113,"./js/oceanex.js":114,"./js/okcoincny.js":115,"./js/okcoinusd.js":116,"./js/okex.js":117,"./js/okex3.js":118,"./js/paymium.js":119,"./js/poloniex.js":120,"./js/rightbtc.js":121,"./js/southxchange.js":122,"./js/stex.js":160,"./js/stronghold.js":161,"./js/surbitcoin.js":162,"./js/theocean.js":163,"./js/therock.js":164,"./js/tidebit.js":165,"./js/tidex.js":166,"./js/timex.js":167,"./js/topq.js":168,"./js/upbit.js":169,"./js/vaultoro.js":170,"./js/vbtc.js":171,"./js/whitebit.js":172,"./js/xbtce.js":173,"./js/yobit.js":174,"./js/zaif.js":175,"./js/zb.js":176}],3:[function(require,module,exports){
+},{"./js/_1btcxe.js":3,"./js/acx.js":4,"./js/adara.js":5,"./js/anxpro.js":6,"./js/aofex.js":7,"./js/base/Exchange":8,"./js/base/errors":10,"./js/base/functions":11,"./js/bcex.js":22,"./js/bequant.js":23,"./js/bibox.js":24,"./js/bigone.js":25,"./js/binance.js":26,"./js/binanceje.js":27,"./js/binanceus.js":28,"./js/bit2c.js":29,"./js/bitbank.js":30,"./js/bitbay.js":31,"./js/bitfinex.js":32,"./js/bitfinex2.js":33,"./js/bitflyer.js":34,"./js/bitforex.js":35,"./js/bithumb.js":36,"./js/bitkk.js":37,"./js/bitmart.js":38,"./js/bitmax.js":39,"./js/bitmex.js":40,"./js/bitso.js":41,"./js/bitstamp.js":42,"./js/bitstamp1.js":43,"./js/bittrex.js":44,"./js/bitz.js":45,"./js/bl3p.js":46,"./js/bleutrade.js":47,"./js/braziliex.js":48,"./js/btcalpha.js":49,"./js/btcbox.js":50,"./js/btcmarkets.js":51,"./js/btctradeim.js":52,"./js/btctradeua.js":53,"./js/btcturk.js":54,"./js/buda.js":55,"./js/bw.js":56,"./js/bybit.js":57,"./js/bytetrade.js":58,"./js/cex.js":59,"./js/chilebit.js":60,"./js/coinbase.js":61,"./js/coinbaseprime.js":62,"./js/coinbasepro.js":63,"./js/coincheck.js":64,"./js/coinegg.js":65,"./js/coinex.js":66,"./js/coinfalcon.js":67,"./js/coinfloor.js":68,"./js/coingi.js":69,"./js/coinmarketcap.js":70,"./js/coinmate.js":71,"./js/coinone.js":72,"./js/coinspot.js":73,"./js/coolcoin.js":74,"./js/coss.js":75,"./js/crex24.js":76,"./js/deribit.js":77,"./js/digifinex.js":78,"./js/dsx.js":79,"./js/exmo.js":80,"./js/exx.js":81,"./js/fcoin.js":82,"./js/fcoinjp.js":83,"./js/flowbtc.js":84,"./js/foxbit.js":85,"./js/ftx.js":86,"./js/fybse.js":87,"./js/gateio.js":88,"./js/gemini.js":89,"./js/hitbtc.js":90,"./js/hitbtc2.js":91,"./js/hollaex.js":92,"./js/huobipro.js":93,"./js/huobiru.js":94,"./js/ice3x.js":95,"./js/idex.js":96,"./js/independentreserve.js":97,"./js/indodax.js":98,"./js/itbit.js":99,"./js/kkex.js":100,"./js/kraken.js":101,"./js/kucoin.js":102,"./js/kuna.js":103,"./js/lakebtc.js":104,"./js/latoken.js":105,"./js/lbank.js":106,"./js/liquid.js":107,"./js/livecoin.js":108,"./js/luno.js":109,"./js/lykke.js":110,"./js/mercado.js":111,"./js/mixcoins.js":112,"./js/oceanex.js":113,"./js/okcoin.js":114,"./js/okex.js":115,"./js/paymium.js":116,"./js/poloniex.js":117,"./js/rightbtc.js":118,"./js/southxchange.js":119,"./js/stex.js":157,"./js/stronghold.js":158,"./js/surbitcoin.js":159,"./js/theocean.js":160,"./js/therock.js":161,"./js/tidebit.js":162,"./js/tidex.js":163,"./js/timex.js":164,"./js/topq.js":165,"./js/upbit.js":166,"./js/vaultoro.js":167,"./js/vbtc.js":168,"./js/whitebit.js":169,"./js/xbtce.js":170,"./js/yobit.js":171,"./js/zaif.js":172,"./js/zb.js":173}],3:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -488,7 +485,7 @@ module.exports = class _1btcxe extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],4:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],4:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -625,6 +622,8 @@ module.exports = class acx extends Exchange {
                 'quoteId': quoteId,
                 'precision': precision,
                 'info': market,
+                'active': undefined,
+                'limits': this.limits,
             });
         }
         return result;
@@ -816,6 +815,7 @@ module.exports = class acx extends Exchange {
         const id = this.safeString (order, 'id');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -830,6 +830,8 @@ module.exports = class acx extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': order,
+            'cost': undefined,
+            'average': undefined,
         };
     }
 
@@ -958,7 +960,7 @@ module.exports = class acx extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],5:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],5:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -1931,6 +1933,7 @@ module.exports = class adara extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -2214,7 +2217,7 @@ module.exports = class adara extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],6:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],6:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -2686,6 +2689,7 @@ module.exports = class anxpro extends Exchange {
             'cost': cost,
             'fee': undefined,
             'info': trade,
+            'takerOrMaker': undefined,
         };
     }
 
@@ -3191,6 +3195,7 @@ module.exports = class anxpro extends Exchange {
         const cost = executedAverageRate * filled;
         return {
             'id': this.safeString (order, 'orderId'),
+            'clientOrderId': undefined,
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -3206,6 +3211,7 @@ module.exports = class anxpro extends Exchange {
             'fee': undefined,
             'trades': trades,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -3283,6 +3289,7 @@ module.exports = class anxpro extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -3297,6 +3304,7 @@ module.exports = class anxpro extends Exchange {
             'status': status,
             'fee': fee,
             'trades': trades,
+            'average': undefined,
         };
     }
 
@@ -3432,7 +3440,1134 @@ module.exports = class anxpro extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],7:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],7:[function(require,module,exports){
+'use strict';
+
+//  ---------------------------------------------------------------------------
+
+const Exchange = require ('./base/Exchange');
+const { ArgumentsRequired, ExchangeError, BadSymbol, InvalidOrder, PermissionDenied, InvalidAddress, AuthenticationError, InvalidNonce, BadRequest, InsufficientFunds, OrderNotFound } = require ('./base/errors');
+const { TRUNCATE } = require ('./base/functions/number');
+
+//  ---------------------------------------------------------------------------
+
+module.exports = class aofex extends Exchange {
+    describe () {
+        return this.deepExtend (super.describe (), {
+            'id': 'aofex',
+            'name': 'AOFEX',
+            'countries': [ 'GB' ],
+            'rateLimit': 1000,
+            'has': {
+                'fetchMarkets': true,
+                'fetchCurrencies': false,
+                'fetchOrderBook': true,
+                'fetchTrades': true,
+                'fetchTicker': true,
+                'fetchTickers': true,
+                'fetchOHLCV': true,
+                'fetchBalance': true,
+                'createOrder': true,
+                'cancelOrder': true,
+                'cancelAllOrders': true,
+                'fetchOpenOrders': true,
+                'fetchClosedOrders': true,
+                'fetchClosedOrder': true,
+                'fetchOrderTrades': true,
+                'fetchTradingFee': true,
+            },
+            'timeframes': {
+                '1m': '1min',
+                '5m': '5min',
+                '15m': '15min',
+                '30m': '30min',
+                '1h': '1hour',
+                '6h': '6hour',
+                '12h': '12hour',
+                '1d': '1day',
+                '1w': '1week',
+            },
+            'urls': {
+                'logo': 'https://user-images.githubusercontent.com/51840849/77670271-056d1080-6f97-11ea-9ac2-4268e9ed0c1f.jpg',
+                'api': {
+                    'public': 'https://openapi.aofex.com/openApi',
+                    'private': 'https://openapi.aofex.com/openApi',
+                },
+                'www': 'https://aofex.com',
+                'doc': 'https://aofex.zendesk.com/hc/en-us/sections/360005576574-API',
+                'fees': 'https://aofex.zendesk.com/hc/en-us/articles/360025814934-Fees-on-AOFEX',
+                'referral': 'https://aofex.com/#/register?key=9763840',
+            },
+            'api': {
+                'public': {
+                    'get': [
+                        'market/symbols',
+                        'market/trade',
+                        'market/depth',
+                        'market/kline',
+                        'market/precision',
+                        'market/24kline',
+                        'market/gears_depth',
+                        'market/detail',
+                    ],
+                },
+                'private': {
+                    'get': [
+                        'entrust/currentList',
+                        'entrust/historyList',
+                        'entrust/rate',
+                        'wallet/list',
+                        'entrust/detail',
+                    ],
+                    'post': [
+                        'entrust/add',
+                        'entrust/cancel',
+                    ],
+                },
+            },
+            'fees': {
+                'trading': {
+                    'maker': 0.0019,
+                    'taker': 0.002,
+                },
+            },
+            'exceptions': {
+                'exact': {
+                    '20001': ExchangeError, // request failure
+                    '20401': PermissionDenied, // no permission
+                    '20500': ExchangeError, // system error
+                    '20501': BadSymbol, // base symbol error
+                    '20502': ExchangeError, // base currency error
+                    '20503': ExchangeError, // base date error
+                    '20504': InsufficientFunds, // account frozen balance insufficient error
+                    '20505': BadRequest, // bad argument
+                    '20506': AuthenticationError, // api signature not valid
+                    '20507': ExchangeError, // gateway internal error
+                    '20508': InvalidAddress, // ad ethereum addresss
+                    '20509': InsufficientFunds, // order accountbalance error
+                    '20510': InvalidOrder, // order limitorder price error
+                    '20511': InvalidOrder, // order limitorder amount error
+                    '20512': InvalidOrder, // order orderprice precision error
+                    '20513': InvalidOrder, // order orderamount precision error
+                    '20514': InvalidOrder, // order marketorder amount error
+                    '20515': InvalidOrder, // order queryorder invalid
+                    '20516': InvalidOrder, // order orderstate error
+                    '20517': InvalidOrder, // order datelimit error
+                    '50518': InvalidOrder, // order update error
+                    '20519': InvalidNonce, // the nonce has been used
+                    '20520': InvalidNonce, // nonce expires, please verify server time
+                    '20521': BadRequest, // incomplete header parameters
+                    '20522': ExchangeError, // not getting the current user
+                    '20523': AuthenticationError, // please authenticate
+                    '20524': PermissionDenied, // btc account lockout
+                    '20525': AuthenticationError, // get API Key error
+                    '20526': PermissionDenied, // no query permission
+                    '20527': PermissionDenied, // no deal permission
+                    '20528': PermissionDenied, // no withdrawal permission
+                    '20529': AuthenticationError, // API Key expired
+                    '20530': PermissionDenied, // no permission
+                },
+                'broad': {
+                },
+            },
+            'options': {
+                'fetchBalance': {
+                    'show_all': '0', // '1' to show zero balances
+                },
+            },
+        });
+    }
+
+    async fetchMarkets (params = {}) {
+        let markets = await this.publicGetMarketSymbols (params);
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: 'success',
+        //         result: [
+        //             {
+        //                 id: 2,
+        //                 symbol: 'BTC-USDT',
+        //                 base_currency: 'BTC',
+        //                 quote_currency: 'USDT',
+        //                 min_size: 0.00008,
+        //                 max_size: 1300,
+        //                 min_price: 1000,
+        //                 max_price: 110000,
+        //                 maker_fee: 1,
+        //                 taker_fee: 1,
+        //                 isHot: null,
+        //                 isNew: null,
+        //                 crown: null
+        //             },
+        //         ]
+        //     }
+        //
+        let precisions = await this.publicGetMarketPrecision ();
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: 'success',
+        //         result: {
+        //             'MANA-USDT': {
+        //                 amount: '2',
+        //                 minQuantity: '32',
+        //                 maxQuantity: '46000000',
+        //                 price: '4',
+        //                 minPrice: '0.003',
+        //                 maxPrice: '0.35'
+        //             },
+        //         }
+        //     }
+        //
+        precisions = this.safeValue (precisions, 'result', {});
+        markets = this.safeValue (markets, 'result', []);
+        const result = [];
+        for (let i = 0; i < markets.length; i++) {
+            const market = markets[i];
+            const id = this.safeString (market, 'symbol');
+            const baseId = this.safeString (market, 'base_currency');
+            const quoteId = this.safeString (market, 'quote_currency');
+            const base = this.safeCurrencyCode (baseId);
+            const quote = this.safeCurrencyCode (quoteId);
+            const symbol = base + '/' + quote;
+            const numericId = this.safeInteger (market, 'id');
+            const precision = this.safeValue (precisions, id, {});
+            const makerFee = this.safeFloat (market, 'maker_fee');
+            const takerFee = this.safeFloat (market, 'taker_fee');
+            result.push ({
+                'id': id,
+                'numericId': numericId,
+                'symbol': symbol,
+                'baseId': baseId,
+                'quoteId': quoteId,
+                'base': base,
+                'quote': quote,
+                'active': undefined,
+                'maker': makerFee / 1000,
+                'taker': takerFee / 1000,
+                'precision': {
+                    'amount': this.safeInteger (precision, 'amount'),
+                    'price': this.safeInteger (precision, 'price'),
+                },
+                'limits': {
+                    'amount': {
+                        'min': this.safeFloat (market, 'min_size'),
+                        'max': this.safeFloat (market, 'max_size'),
+                    },
+                    'price': {
+                        'min': this.safeFloat (market, 'min_price'),
+                        'max': this.safeFloat (market, 'max_price'),
+                    },
+                    'cost': {
+                        'min': undefined,
+                        'max': undefined,
+                    },
+                },
+                'info': market,
+            });
+        }
+        return result;
+    }
+
+    parseOHLCV (ohlcv, market = undefined, timeframe = '5m', since = undefined, limit = undefined) {
+        //
+        //     {
+        //         id:  1584950100,
+        //         amount: "329.196",
+        //         count:  81,
+        //         open: "0.021155",
+        //         close: "0.021158",
+        //         low: "0.021144",
+        //         high: "0.021161",
+        //         vol: "6.963557767"
+        //     }
+        //
+        return [
+            this.safeTimestamp (ohlcv, 'id'),
+            this.safeFloat (ohlcv, 'open'),
+            this.safeFloat (ohlcv, 'high'),
+            this.safeFloat (ohlcv, 'low'),
+            this.safeFloat (ohlcv, 'close'),
+            this.safeFloat (ohlcv, 'amount'),
+        ];
+    }
+
+    async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        if (limit === undefined) {
+            limit = 150; // default 150, max 2000
+        }
+        const request = {
+            'symbol': market['id'],
+            'period': this.timeframes[timeframe],
+            'size': limit, // default 150, max 2000
+        };
+        const response = await this.publicGetMarketKline (this.extend (request, params));
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: "success",
+        //         result: {
+        //             ts:  1584950139003,
+        //             symbol: "ETH-BTC",
+        //             period: "1min",
+        //             data: [
+        //                 {
+        //                     id:  1584950100,
+        //                     amount: "329.196",
+        //                     count:  81,
+        //                     open: "0.021155",
+        //                     close: "0.021158",
+        //                     low: "0.021144",
+        //                     high: "0.021161",
+        //                     vol: "6.963557767"
+        //                 },
+        //                 {
+        //                     id:  1584950040,
+        //                     amount: "513.265",
+        //                     count:  151,
+        //                     open: "0.021165",
+        //                     close: "0.021155",
+        //                     low: "0.021151",
+        //                     high: "0.02118",
+        //                     vol: "10.862806573"
+        //                 },
+        //             ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseOHLCVs (data, market, timeframe, since, limit);
+    }
+
+    async fetchBalance (params = {}) {
+        await this.loadMarkets ();
+        const options = this.safeValue (this.options, 'fetchBalance', {});
+        const showAll = this.safeValue (options, 'show_all', '0');
+        const request = {
+            // 'currency': 'BTC',
+            'show_all': showAll, // required to show zero balances
+        };
+        const response = await this.privateGetWalletList (this.extend (request, params));
+        //
+        //     {
+        //         "errno": 0,
+        //         "errmsg": "success",
+        //         "result": [
+        //             { "available": "0", "frozen": "0", "currency": "BTC" }
+        //         ]
+        //     }
+        //
+        const result = { 'info': response };
+        const balances = this.safeValue (response, 'result', []);
+        for (let i = 0; i < balances.length; i++) {
+            const balance = balances[i];
+            const currencyId = this.safeString (balance, 'currency');
+            const code = this.safeCurrencyCode (currencyId);
+            const account = this.account ();
+            account['free'] = this.safeFloat (balance, 'available');
+            account['used'] = this.safeFloat (balance, 'frozen');
+            result[code] = account;
+        }
+        return this.parseBalance (result);
+    }
+
+    async fetchTradingFee (symbol, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const response = await this.privateGetEntrustRate (this.extend (request, params));
+        //
+        //     {
+        //         "errno":0,
+        //         "errmsg":"success",
+        //         "result": {
+        //             "toFee":"0.002","fromFee":"0.002"
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        return {
+            'info': response,
+            'symbol': symbol,
+            'maker': this.safeFloat (result, 'fromFee'),
+            'taker': this.safeFloat (result, 'toFee'),
+        };
+    }
+
+    async fetchOrderBook (symbol, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            'symbol': this.marketId (symbol),
+        };
+        const response = await this.publicGetMarketDepth (this.extend (request, params));
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: "success",
+        //         result: {
+        //             buyType: 1,
+        //             sellType: 1,
+        //             ts: 1584950701050,
+        //             symbol: "ETH-BTC",
+        //             asks: [
+        //                 ["0.021227", "0.182"],
+        //                 ["0.021249", "0.035"],
+        //                 ["0.021253", "0.058"],
+        //             ],
+        //             bids: [
+        //                 ["0.021207", "0.039"],
+        //                 ["0.021203", "0.051"],
+        //                 ["0.02117", "2.326"],
+        //             ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const timestamp = this.safeInteger (result, 'ts');
+        return this.parseOrderBook (result, timestamp);
+    }
+
+    parseTicker (ticker, market = undefined) {
+        //
+        // fetchTicker
+        //
+        //     {
+        //         id: 1584890087,
+        //         amount: '150032.919',
+        //         count: 134538,
+        //         open: '0.021394',
+        //         close: '0.021177',
+        //         low: '0.021053',
+        //         high: '0.021595',
+        //         vol: '3201.72451442'
+        //     }
+        //
+        const timestamp = this.safeTimestamp (ticker, 'id');
+        let symbol = undefined;
+        if (market) {
+            symbol = market['symbol'];
+        }
+        const open = this.safeFloat (ticker, 'open');
+        const last = this.safeFloat (ticker, 'close');
+        let change = undefined;
+        if (symbol !== undefined) {
+            change = parseFloat (this.priceToPrecision (symbol, last - open));
+        } else {
+            change = last - open;
+        }
+        const average = this.sum (last, open) / 2;
+        const percentage = change / open * 100;
+        const baseVolume = this.safeFloat (ticker, 'amount');
+        const quoteVolume = this.safeFloat (ticker, 'vol');
+        let vwap = undefined;
+        if (quoteVolume !== undefined) {
+            if (baseVolume !== undefined) {
+                if (baseVolume > 0) {
+                    vwap = parseFloat (this.priceToPrecision (symbol, quoteVolume / baseVolume));
+                }
+            }
+        }
+        return {
+            'symbol': symbol,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'high': this.safeFloat (ticker, 'high'),
+            'low': this.safeFloat (ticker, 'low'),
+            'bid': undefined,
+            'bidVolume': undefined,
+            'ask': undefined,
+            'askVolume': undefined,
+            'vwap': vwap,
+            'open': open,
+            'close': last,
+            'last': last,
+            'previousClose': undefined,
+            'change': change,
+            'percentage': percentage,
+            'average': average,
+            'baseVolume': baseVolume,
+            'quoteVolume': quoteVolume,
+            'info': ticker,
+        };
+    }
+
+    async fetchTickers (symbols = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {};
+        if (symbols !== undefined) {
+            const ids = this.marketIds (symbols);
+            request['symbol'] = ids.join (',');
+        }
+        const response = await this.publicGetMarket24kline (this.extend (request, params));
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: "success",
+        //         result: [
+        //             {
+        //                 symbol: "HB-AQ",
+        //                 data: {
+        //                     id:  1584893403,
+        //                     amount: "4753751.243400354852648809",
+        //                     count:  4724,
+        //                     open: "6.3497",
+        //                     close: "6.3318",
+        //                     low: "6.011",
+        //                     high: "6.5",
+        //                     vol: "29538384.7873528796542891343493"
+        //                 }
+        //             },
+        //         ]
+        //     }
+        //
+        const tickers = this.safeValue (response, 'result', []);
+        const result = {};
+        for (let i = 0; i < tickers.length; i++) {
+            const marketId = this.safeString (tickers[i], 'symbol');
+            let market = undefined;
+            let symbol = marketId;
+            if (marketId !== undefined) {
+                if (marketId in this.markets_by_id) {
+                    market = this.markets_by_id[marketId];
+                    symbol = market['symbol'];
+                } else {
+                    const [ baseId, quoteId ] = marketId.split ('-');
+                    const base = this.safeCurrencyCode (baseId);
+                    const quote = this.safeCurrencyCode (quoteId);
+                    symbol = base + '/' + quote;
+                }
+            }
+            const data = this.safeValue (tickers[i], 'data', {});
+            const ticker = this.parseTicker (data, market);
+            ticker['symbol'] = symbol;
+            result[symbol] = ticker;
+        }
+        return this.filterByArray (result, 'symbol', symbols);
+    }
+
+    async fetchTicker (symbol, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const response = await this.publicGetMarketDetail (this.extend (request, params));
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: 'success',
+        //         result: {
+        //             id: 1584890087,
+        //             amount: '150032.919',
+        //             count: 134538,
+        //             open: '0.021394',
+        //             close: '0.021177',
+        //             low: '0.021053',
+        //             high: '0.021595',
+        //             vol: '3201.72451442'
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        return this.parseTicker (result, market);
+    }
+
+    parseTrade (trade, market = undefined) {
+        //
+        // fetchTrades (public)
+        //
+        //     {
+        //         id: 1584948803298490,
+        //         amount: "2.737",
+        //         price: "0.021209",
+        //         direction: "sell",
+        //         ts: 1584948803
+        //     }
+        //
+        // fetchOrder trades
+        //
+        //     {
+        //         "id":null,
+        //         "ctime":"2020-03-23 20:07:17",
+        //         "price":"123.9",
+        //         "number":"0.010688626311541565",
+        //         "total_price":"1.324320799999999903",
+        //         "fee":"0.000021377252623083"
+        //     }
+        //
+        const id = this.safeString (trade, 'id');
+        const ctime = this.parse8601 (this.safeString (trade, 'ctime'));
+        const timestamp = this.safeTimestamp (trade, 'ts', ctime) - 28800000; // 8 hours, adjust to UTC;
+        let symbol = undefined;
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+        }
+        const side = this.safeString (trade, 'direction');
+        const price = this.safeFloat (trade, 'price');
+        const amount = this.safeFloat2 (trade, 'amount', 'number');
+        let cost = this.safeFloat (trade, 'total_price');
+        if ((cost === undefined) && (price !== undefined) && (amount !== undefined)) {
+            cost = price * amount;
+        }
+        const feeCost = this.safeFloat (trade, 'fee');
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            let feeCurrencyCode = undefined;
+            if (market !== undefined) {
+                if (side === 'buy') {
+                    feeCurrencyCode = market['base'];
+                } else if (side === 'sell') {
+                    feeCurrencyCode = market['quote'];
+                }
+            }
+            fee = {
+                'cost': feeCost,
+                'currency': feeCurrencyCode,
+            };
+        }
+        return {
+            'id': id,
+            'info': trade,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'symbol': symbol,
+            'order': undefined,
+            'type': undefined,
+            'side': side,
+            'takerOrMaker': undefined,
+            'price': price,
+            'amount': amount,
+            'cost': cost,
+            'fee': fee,
+        };
+    }
+
+    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const response = await this.publicGetMarketTrade (this.extend (request, params));
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: "success",
+        //         result: {
+        //             symbol: "ETH-BTC",
+        //             ts: 1584948805439,
+        //             data: [
+        //                 {
+        //                     id: 1584948803300883,
+        //                     amount: "0.583",
+        //                     price: "0.021209",
+        //                     direction: "buy",
+        //                     ts: 1584948803
+        //                 },
+        //                 {
+        //                     id: 1584948803298490,
+        //                     amount: "2.737",
+        //                     price: "0.021209",
+        //                     direction: "sell",
+        //                     ts: 1584948803
+        //                 },
+        //             ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseTrades (data, market, since, limit);
+    }
+
+    parseOrderStatus (status) {
+        const statuses = {
+            '1': 'open',
+            '2': 'open', // partially filled
+            '3': 'closed',
+            '4': 'canceled', // canceling
+            '5': 'canceled', // partially canceled
+            '6': 'canceled',
+        };
+        return this.safeString (statuses, status, status);
+    }
+
+    parseOrder (order, market = undefined) {
+        //
+        // createOrder
+        //
+        //     { order_sn: 'BM7442641584965237751ZMAKJ5' }
+        //
+        // fetchOpenOrders, fetchClosedOrders
+        //
+        //     {
+        //         "order_sn": "BL74426415849672087836G48N1",
+        //         "symbol": "ETH-USDT",
+        //         "ctime": "2020-03-23 20:40:08",
+        //         "type": 2,
+        //         "side": "buy",
+        //         "price": "90", // undefined for market orders
+        //         "number": "0.1",
+        //         "total_price": "9.0", // 0 for market orders
+        //         "deal_number": null,
+        //         "deal_price": null,
+        //         "status": 1,
+        //     }
+        //
+        // fetchOrder
+        //
+        //     {
+        //         order_sn: 'BM7442641584965237751ZMAKJ5',
+        //         symbol: 'ETH-USDT',
+        //         ctime: '2020-03-23 20:07:17',
+        //         type: 1,
+        //         side: 'buy',
+        //         price: '0',
+        //         number: '10',
+        //         total_price: '0',
+        //         deal_number: '0.080718626311541565',
+        //         deal_price: '123.890000000000000000',
+        //         status: 3,
+        //         // the trades field is injected by fetchOrder
+        //         trades: [
+        //             {
+        //                 id: null,
+        //                 ctime: '2020-03-23 20:07:17',
+        //                 price: '123.9',
+        //                 number: '0.010688626311541565',
+        //                 total_price: '1.324320799999999903',
+        //                 fee: '0.000021377252623083'
+        //             }
+        //         ]
+        //     }
+        //
+        const id = this.safeString (order, 'order_sn');
+        const orderStatus = this.safeString (order, 'status');
+        const status = this.parseOrderStatus (orderStatus);
+        let symbol = undefined;
+        const marketId = this.safeString (order, 'symbol');
+        let base = undefined;
+        let quote = undefined;
+        if (marketId !== undefined) {
+            if (marketId in this.markets_by_id) {
+                market = this.markets_by_id[marketId];
+            } else {
+                const [ baseId, quoteId ] = marketId.split ('-');
+                base = this.safeCurrencyCode (baseId);
+                quote = this.safeCurrencyCode (quoteId);
+                symbol = base + '/' + quote;
+            }
+        }
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+            base = market['base'];
+            quote = market['quote'];
+        }
+        const timestamp = this.parse8601 (this.safeString (order, 'ctime')) - 28800000; // 8 hours, adjust to UTC
+        const orderType = this.safeString (order, 'type');
+        const type = (orderType === '2') ? 'limit' : 'market';
+        const side = this.safeString (order, 'side');
+        // const amount = this.safeFloat (order, 'number');
+        // const price = this.safeFloat (order, 'price');
+        let cost = undefined;
+        let price = undefined;
+        let amount = undefined;
+        let average = undefined;
+        const number = this.safeFloat (order, 'number');
+        const totalPrice = this.safeFloat (order, 'total_price');
+        if (type === 'limit') {
+            amount = number;
+            price = this.safeFloat (order, 'price');
+        } else {
+            average = this.safeFloat (order, 'deal_price');
+            if (side === 'buy') {
+                amount = this.safeFloat (order, 'deal_number');
+            } else {
+                amount = number;
+            }
+        }
+        let fee = undefined;
+        let trades = undefined;
+        let filled = undefined;
+        let feeCost = undefined;
+        let remaining = undefined;
+        let lastTradeTimestamp = undefined;
+        // all orders except new orders and canceled orders
+        if ((orderStatus !== '1') && (orderStatus !== '6')) {
+            const rawTrades = this.safeValue (order, 'trades');
+            if (rawTrades !== undefined) {
+                for (let i = 0; i < rawTrades.length; i++) {
+                    rawTrades[i]['direction'] = side;
+                }
+                trades = this.parseTrades (rawTrades, market, undefined, undefined, {
+                    'symbol': market['symbol'],
+                    'order': id,
+                    'side': side,
+                    'type': type,
+                });
+                const tradesLength = trades.length;
+                if (tradesLength > 0) {
+                    const firstTrade = trades[0];
+                    feeCost = firstTrade['fee']['cost'];
+                    lastTradeTimestamp = firstTrade['timestamp'];
+                    filled = firstTrade['amount'];
+                    cost = firstTrade['cost'];
+                    for (let i = 1; i < trades.length; i++) {
+                        const trade = trades[i];
+                        feeCost = this.sum (feeCost, trade['fee']['cost']);
+                        filled = this.sum (filled, trade['amount']);
+                        cost = this.sum (cost, trade['cost']);
+                        lastTradeTimestamp = Math.max (lastTradeTimestamp, trade['timestamp']);
+                    }
+                    if (amount !== undefined) {
+                        filled = Math.min (amount, filled);
+                    }
+                    if (filled > 0) {
+                        average = cost / filled;
+                    }
+                }
+                if (feeCost !== undefined) {
+                    const feeCurrencyCode = (side === 'buy') ? base : quote;
+                    fee = {
+                        'cost': feeCost,
+                        'currency': feeCurrencyCode,
+                    };
+                }
+            }
+        } else {
+            filled = 0;
+            cost = 0;
+        }
+        if (cost === undefined) {
+            if (type === 'limit') {
+                cost = totalPrice;
+            } else if (side === 'buy') {
+                cost = number;
+            }
+        }
+        if (filled === undefined) {
+            if ((type === 'limit') && (orderStatus === '3')) {
+                filled = amount;
+            }
+        }
+        if (filled !== undefined) {
+            if (amount !== undefined) {
+                remaining = Math.max (amount - filled, 0);
+            }
+        }
+        return {
+            'info': order,
+            'id': id,
+            'clientOrderId': undefined,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'lastTradeTimestamp': lastTradeTimestamp,
+            'status': status,
+            'symbol': symbol,
+            'type': type,
+            'side': side,
+            'price': price,
+            'cost': cost,
+            'average': average,
+            'amount': amount,
+            'filled': filled,
+            'remaining': remaining,
+            'trades': trades,
+            'fee': fee,
+        };
+    }
+
+    async fetchClosedOrder (id, symbol = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            'order_sn': id,
+        };
+        const response = await this.privateGetEntrustDetail (this.extend (request, params));
+        //
+        //     {
+        //         "errno": 0,
+        //         "errmsg": "success",
+        //         "result": {
+        //             "trades": [
+        //                 {
+        //                     "id":null,
+        //                     "ctime":"2020-03-23 20:07:17",
+        //                     "price":"123.9",
+        //                     "number":"0.010688626311541565",
+        //                     "total_price":"1.324320799999999903",
+        //                     "fee":"0.000021377252623083"
+        //                 },
+        //             ],
+        //             "entrust":{
+        //                 "order_sn":"BM7442641584965237751ZMAKJ5",
+        //                 "symbol":"ETH-USDT",
+        //                 "ctime":"2020-03-23 20:07:17",
+        //                 "type":1,
+        //                 "side":"buy",
+        //                 "price":"0",
+        //                 "number":"10",
+        //                 "total_price":"0",
+        //                 "deal_number":"0.080718626311541565",
+        //                 "deal_price":"123.890000000000000000",
+        //                 "status":3
+        //             }
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const trades = this.safeValue (result, 'trades', []);
+        const order = this.safeValue (result, 'entrust', {});
+        order['trades'] = trades;
+        return this.parseOrder (order);
+    }
+
+    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        const response = await this.fetchClosedOrder (id, symbol, params);
+        return this.safeValue (response, 'trades', []);
+    }
+
+    async fetchOrdersWithMethod (method, symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            // 'from': 'BM7442641584965237751ZMAKJ5', // query start order_sn
+            'direct': 'prev', // next
+        };
+        let market = undefined;
+        if (symbol !== undefined) {
+            market = this.market (symbol);
+            request['symbol'] = market['id'];
+        }
+        if (limit !== undefined) {
+            request['limit'] = limit; // default 20, max 100
+        }
+        const response = await this[method] (this.extend (request, params));
+        //
+        //     {
+        //         "errno": 0,
+        //         "errmsg": "success",
+        //         "result": [
+        //             {
+        //                 "order_sn": "BL74426415849672087836G48N1",
+        //                 "symbol": "ETH-USDT",
+        //                 "ctime": "2020-03-23 20:40:08",
+        //                 "type": 2,
+        //                 "side": "buy",
+        //                 "price": "90",
+        //                 "number": "0.1",
+        //                 "total_price": "9.0",
+        //                 "deal_number": null,
+        //                 "deal_price": null,
+        //                 "status": 1,
+        //             }
+        //         ]
+        //     }
+        //
+        const result = this.safeValue (response, 'result', []);
+        return this.parseOrders (result, market, since, limit);
+    }
+
+    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        return await this.fetchOrdersWithMethod ('privateGetEntrustCurrentList', symbol, since, limit, params);
+    }
+
+    async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        return await this.fetchOrdersWithMethod ('privateGetEntrustHistoryList', symbol, since, limit, params);
+    }
+
+    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const orderType = side + '-' + type;
+        const request = {
+            'symbol': market['id'],
+            'type': orderType,
+        };
+        if (type === 'limit') {
+            request['amount'] = this.amountToPrecision (symbol, amount);
+            request['price'] = this.priceToPrecision (symbol, price);
+        } else if (type === 'market') {
+            // for market buy it requires the amount of quote currency to spend
+            if (side === 'buy') {
+                const createMarketBuyOrderRequiresPrice = this.safeValue (this.options, 'createMarketBuyOrderRequiresPrice', true);
+                let cost = amount;
+                if (createMarketBuyOrderRequiresPrice) {
+                    if (price !== undefined) {
+                        cost = amount * price;
+                    } else {
+                        throw new InvalidOrder (this.id + " createOrder() requires the price argument with market buy orders to calculate total order cost (amount to spend), where cost = amount * price. Supply a price argument to createOrder() call if you want the cost to be calculated for you from price and amount, or, alternatively, add .options['createMarketBuyOrderRequiresPrice'] = false and supply the total cost value in the 'amount' argument");
+                    }
+                }
+                const precision = market['precision']['price'];
+                request['amount'] = this.decimalToPrecision (cost, TRUNCATE, precision, this.precisionMode);
+            } else {
+                request['amount'] = this.amountToPrecision (symbol, amount);
+            }
+        }
+        const response = await this.privatePostEntrustAdd (this.extend (request, params));
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: 'success',
+        //         result: { order_sn: 'BM7442641584965237751ZMAKJ5' }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const order = this.parseOrder (result, market);
+        const timestamp = this.milliseconds ();
+        return this.extend (order, {
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'amount': amount,
+            'price': price,
+            'type': type,
+            'side': side,
+        });
+    }
+
+    async cancelOrder (id, symbol = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            'order_ids': id,
+        };
+        const response = await this.privatePostEntrustCancel (this.extend (request, params));
+        //
+        //     {
+        //         "errno": 0,
+        //         "errmsg": "success",
+        //         "result": {
+        //             "success": [ "avl12121", "bl3123123" ],
+        //             "failed": [ "sd24564", "sdf6564564" ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const success = this.safeValue (result, 'success', []);
+        if (!this.inArray (id, success)) {
+            throw new OrderNotFound (this.id + ' order id ' + id + ' not found in successfully canceled orders: ' + this.json (response));
+        }
+        const timestamp = undefined;
+        return {
+            'info': response,
+            'id': id,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'lastTradeTimestamp': undefined,
+            'status': 'canceled',
+            'symbol': symbol,
+            'type': undefined,
+            'side': undefined,
+            'price': undefined,
+            'cost': undefined,
+            'average': undefined,
+            'amount': undefined,
+            'filled': undefined,
+            'remaining': undefined,
+            'trades': undefined,
+            'fee': undefined,
+            'clientOrderId': undefined,
+        };
+    }
+
+    async cancelAllOrders (symbol = undefined, params = {}) {
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' cancelAllOrders() requires a symbol argument');
+        }
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const response = await this.privatePostEntrustCancel (this.extend (request, params));
+        //
+        //     {
+        //         "errno": 0,
+        //         "errmsg": "success",
+        //         "result": {
+        //             "success": [ "avl12121", "bl3123123" ],
+        //             "failed": [ "sd24564", "sdf6564564" ]
+        //         }
+        //     }
+        //
+        return response;
+    }
+
+    nonce () {
+        return this.milliseconds ();
+    }
+
+    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
+        let url = this.urls['api'][api] + '/' + path;
+        let keys = Object.keys (params);
+        const keysLength = keys.length;
+        if (api === 'public') {
+            if (keysLength > 0) {
+                url += '?' + this.urlencode (params);
+            }
+        } else {
+            const nonce = this.nonce ().toString ();
+            const uuid = this.uuid ();
+            const randomString = uuid.slice (0, 5);
+            const nonceString = nonce + '_' + randomString;
+            const auth = {};
+            auth[this.apiKey] = this.apiKey;
+            auth[this.secret] = this.secret;
+            auth[nonceString] = nonceString;
+            for (let i = 0; i < keysLength; i++) {
+                const key = keys[i];
+                auth[key] = key + '=' + params[key];
+            }
+            const keysorted = this.keysort (auth);
+            let stringToSign = '';
+            keys = Object.keys (keysorted);
+            for (let i = 0; i < keys.length; i++) {
+                const key = keys[i];
+                stringToSign += keysorted[key];
+            }
+            const signature = this.hash (this.encode (stringToSign), 'sha1');
+            headers = {
+                'Nonce': nonceString,
+                'Token': this.apiKey,
+                'Signature': signature,
+            };
+            if (method === 'POST') {
+                headers['Content-Type'] = 'application/x-www-form-urlencoded';
+                if (keysLength > 0) {
+                    body = this.urlencode (params);
+                }
+            } else {
+                if (keysLength > 0) {
+                    url += '?' + this.urlencode (params);
+                }
+            }
+        }
+        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
+    }
+
+    handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
+        if (response === undefined) {
+            return;
+        }
+        //
+        //     {"errno":20501,"errmsg":"base symbol error"}
+        //
+        const error = this.safeString (response, 'errno');
+        if ((error !== undefined) && (error !== '0')) {
+            const message = this.safeString (response, 'errmsg');
+            const feedback = this.id + ' ' + body;
+            this.throwExactlyMatchedException (this.exceptions['exact'], error, feedback);
+            this.throwBroadlyMatchedException (this.exceptions['broad'], message, feedback);
+            throw new ExchangeError (feedback); // unknown message
+        }
+    }
+};
+
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],8:[function(require,module,exports){
 (function (Buffer){
 "use strict";
 
@@ -3602,6 +4737,7 @@ module.exports = class Exchange {
                 '429': RateLimitExceeded,
                 '404': ExchangeNotAvailable,
                 '409': ExchangeNotAvailable,
+                '410': ExchangeNotAvailable,
                 '500': ExchangeNotAvailable,
                 '501': ExchangeNotAvailable,
                 '502': ExchangeNotAvailable,
@@ -3897,42 +5033,50 @@ module.exports = class Exchange {
         }
     }
 
+    print (... args) {
+        console.log (... args)
+    }
+
     fetch (url, method = 'GET', headers = undefined, body = undefined) {
 
         if (isNode && this.userAgent) {
-            if (typeof this.userAgent === 'string')
+            if (typeof this.userAgent === 'string') {
                 headers = extend ({ 'User-Agent': this.userAgent }, headers)
-            else if ((typeof this.userAgent === 'object') && ('User-Agent' in this.userAgent))
+            } else if ((typeof this.userAgent === 'object') && ('User-Agent' in this.userAgent)) {
                 headers = extend (this.userAgent, headers)
+            }
         }
 
         if (typeof this.proxy === 'function') {
 
             url = this.proxy (url)
-            if (isNode)
+            if (isNode) {
                 headers = extend ({ 'Origin': this.origin }, headers)
+            }
 
         } else if (typeof this.proxy === 'string') {
 
-            if (this.proxy.length)
-                if (isNode)
-                    headers = extend ({ 'Origin': this.origin }, headers)
+            if (this.proxy.length && isNode) {
+                headers = extend ({ 'Origin': this.origin }, headers)
+            }
 
             url = this.proxy + url
         }
 
         headers = extend (this.headers, headers)
 
-        if (this.verbose)
-            console.log ("fetch:\n", this.id, method, url, "\nRequest:\n", headers, "\n", body, "\n")
+        if (this.verbose) {
+            this.print ("fetch:\n", this.id, method, url, "\nRequest:\n", headers, "\n", body, "\n")
+        }
 
         return this.executeRestRequest (url, method, headers, body)
     }
 
     async fetch2 (path, type = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
 
-        if (this.enableRateLimit)
+        if (this.enableRateLimit) {
             await this.throttle (this.rateLimit)
+        }
 
         const request = this.sign (path, type, method, params, headers, body)
         return this.fetch (request.url, request.method, request.headers, request.body)
@@ -4047,8 +5191,9 @@ module.exports = class Exchange {
                 this.last_json_response = json         // FIXME: for those classes that haven't switched to handleErrors yet
             }
 
-            if (this.verbose)
-                console.log ("handleRestResponse:\n", this.id, method, url, response.status, response.statusText, "\nResponse:\n", responseHeaders, "\n", responseBody, "\n")
+            if (this.verbose) {
+                this.print ("handleRestResponse:\n", this.id, method, url, response.status, response.statusText, "\nResponse:\n", responseHeaders, "\n", responseBody, "\n")
+            }
 
             this.handleErrors (response.status, response.statusText, url, method, responseHeaders, responseBody, json, requestHeaders, requestBody)
             this.defaultErrorHandler (response.status, response.statusText, url, method, responseHeaders, responseBody, json)
@@ -4070,7 +5215,7 @@ module.exports = class Exchange {
         if (currencies) {
             this.currencies = deepExtend (currencies, this.currencies)
         } else {
-            const baseCurrencies =
+            let baseCurrencies =
                 values.filter (market => 'base' in market)
                     .map (market => ({
                         id: market.baseId || market.base,
@@ -4078,7 +5223,7 @@ module.exports = class Exchange {
                         code: market.base,
                         precision: market.precision ? (market.precision.base || market.precision.amount) : 8,
                     }))
-            const quoteCurrencies =
+            let quoteCurrencies =
                 values.filter (market => 'quote' in market)
                     .map (market => ({
                         id: market.quoteId || market.quote,
@@ -4086,6 +5231,10 @@ module.exports = class Exchange {
                         code: market.quote,
                         precision: market.precision ? (market.precision.quote || market.precision.price) : 8,
                     }))
+            baseCurrencies = sortBy (baseCurrencies, 'code')
+            quoteCurrencies = sortBy (quoteCurrencies, 'code')
+            this.baseCurrencies = indexBy (baseCurrencies, 'code')
+            this.quoteCurrencies = indexBy (quoteCurrencies, 'code')
             const allCurrencies = baseCurrencies.concat (quoteCurrencies)
             const groupedCurrencies = groupBy (allCurrencies, 'code')
             const currencies = Object.keys (groupedCurrencies).map (code =>
@@ -4113,27 +5262,19 @@ module.exports = class Exchange {
         return this.setMarkets (markets, currencies)
     }
 
-    async loadMarkets (reload = false, params = {}) {
-        if (this.marketsLoaded) {
-            if (reload) {
-                return this.loadMarketsHelper (reload, params)
-            }
-            return this.markets
-        } else {
-            if (!this.marketsLoading) {
-                this.marketsLoading = new Promise (async (resolve, reject) => {
-                    try {
-                        const result = await this.loadMarketsHelper (reload, params)
-                        this.marketsLoaded = true
-                        this.marketsLoading = false
-                        resolve (result)
-                    } catch (e) {
-                        reject (e)
-                    }
-                })
-            }
-            return this.marketsLoading
+    // is async (returns a promise)
+    loadMarkets (reload = false, params = {}) {
+        if ((reload && !this.reloadingMarkets) || !this.marketsLoading) {
+            this.reloadingMarkets = true
+            this.marketsLoading = this.loadMarketsHelper (reload, params).then ((resolved) => {
+                this.reloadingMarkets = false
+                return resolved
+            }, (error) => {
+                this.reloadingMarkets = false
+                throw error
+            })
         }
+        return this.marketsLoading
     }
 
     async loadAccounts (reload = false, params = {}) {
@@ -4173,43 +5314,42 @@ module.exports = class Exchange {
     }
 
     parseTradingViewOHLCV (ohlcvs, market = undefined, timeframe = '1m', since = undefined, limit = undefined) {
-        const result = this.convertTradingViewToOHLCV (ohlcvs);
-        return this.parseOHLCVs (result, market, timeframe, since, limit);
+        const result = this.convertTradingViewToOHLCV (ohlcvs)
+        return this.parseOHLCVs (result, market, timeframe, since, limit)
     }
 
-    convertTradingViewToOHLCV (ohlcvs) {
+    convertTradingViewToOHLCV (ohlcvs, t = 't', o = 'o', h = 'h', l = 'l', c = 'c', v = 'v', ms = false) {
         const result = [];
-        for (let i = 0; i < ohlcvs['t'].length; i++) {
+        for (let i = 0; i < ohlcvs[t].length; i++) {
             result.push ([
-                ohlcvs['t'][i] * 1000,
-                ohlcvs['o'][i],
-                ohlcvs['h'][i],
-                ohlcvs['l'][i],
-                ohlcvs['c'][i],
-                ohlcvs['v'][i],
-            ]);
+                ms ? ohlcvs[t][i] : (ohlcvs[t][i] * 1000),
+                ohlcvs[o][i],
+                ohlcvs[h][i],
+                ohlcvs[l][i],
+                ohlcvs[c][i],
+                ohlcvs[v][i],
+            ])
         }
-        return result;
+        return result
     }
 
-    convertOHLCVToTradingView (ohlcvs) {
-        const result = {
-            't': [],
-            'o': [],
-            'h': [],
-            'l': [],
-            'c': [],
-            'v': [],
-        };
+    convertOHLCVToTradingView (ohlcvs, t = 't', o = 'o', h = 'h', l = 'l', c = 'c', v = 'v', ms = false) {
+        const result = {}
+        result[t] = []
+        result[o] = []
+        result[h] = []
+        result[l] = []
+        result[c] = []
+        result[v] = []
         for (let i = 0; i < ohlcvs.length; i++) {
-            result['t'].push (parseInt (ohlcvs[i][0] / 1000));
-            result['o'].push (ohlcvs[i][1]);
-            result['h'].push (ohlcvs[i][2]);
-            result['l'].push (ohlcvs[i][3]);
-            result['c'].push (ohlcvs[i][4]);
-            result['v'].push (ohlcvs[i][5]);
+            result[t].push (ms ? ohlcvs[i][0] : parseInt (ohlcvs[i][0] / 1000))
+            result[o].push (ohlcvs[i][1])
+            result[h].push (ohlcvs[i][2])
+            result[l].push (ohlcvs[i][3])
+            result[c].push (ohlcvs[i][4])
+            result[v].push (ohlcvs[i][5])
         }
-        return result;
+        return result
     }
 
     fetchTicker (symbol, params = {}) {
@@ -4474,27 +5614,34 @@ module.exports = class Exchange {
         return this.markets;
     }
 
-    filterBySinceLimit (array, since = undefined, limit = undefined, key = 'timestamp') {
-        if (since !== undefined && since !== null)
-            array = array.filter (entry => entry[key] >= since)
-        if (limit !== undefined && limit !== null)
-            array = array.slice (0, limit)
+    filterBySinceLimit (array, since = undefined, limit = undefined, key = 'timestamp', tail = false) {
+        const sinceIsDefined = (since !== undefined && since !== null)
+        if (sinceIsDefined) {
+            array = array.filter ((entry) => entry[key] >= since)
+        }
+        if (limit !== undefined && limit !== null) {
+            array = (tail && !sinceIsDefined) ? array.slice (-limit) : array.slice (0, limit)
+        }
         return array
     }
 
-    filterByValueSinceLimit (array, field, value = undefined, since = undefined, limit = undefined) {
+    filterByValueSinceLimit (array, field, value = undefined, since = undefined, limit = undefined, key = 'timestamp', tail = false) {
 
         const valueIsDefined = value !== undefined && value !== null
         const sinceIsDefined = since !== undefined && since !== null
 
         // single-pass filter for both symbol and since
-        if (valueIsDefined || sinceIsDefined)
-            array = Object.values (array).filter (entry =>
-                ((valueIsDefined ? (entry[field] === value)   : true) &&
-                 (sinceIsDefined ? (entry.timestamp >= since) : true)))
+        if (valueIsDefined || sinceIsDefined) {
+            array = Object.values (array).filter ((entry) =>
+                ((valueIsDefined ? (entry[field] === value) : true) &&
+                 (sinceIsDefined ? (entry[key] >= since) : true)))
+        }
 
-        if (limit !== undefined && limit !== null)
-            array = Object.values (array).slice (0, limit)
+        if (limit !== undefined && limit !== null) {
+            array = ((tail && !sinceIsDefined) ?
+                Object.values (array).slice (-limit) :
+                Object.values (array).slice (0, limit))
+        }
 
         return array
     }
@@ -4512,13 +5659,15 @@ module.exports = class Exchange {
         objects = Object.values (objects)
 
         // return all of them if no values were passed
-        if (values === undefined || values === null)
+        if (values === undefined || values === null) {
             return indexed ? indexBy (objects, key) : objects
+        }
 
         const result = []
         for (let i = 0; i < objects.length; i++) {
-            if (values.includes (objects[i][key]))
+            if (values.includes (objects[i][key])) {
                 result.push (objects[i])
+            }
         }
 
         return indexed ? indexBy (result, key) : result
@@ -4529,7 +5678,7 @@ module.exports = class Exchange {
         // if (!this.isArray (trades)) {
         //     throw new ExchangeError (this.id + ' parseTrades expected an array in the trades argument, but got ' + typeof trades);
         // }
-        let result = Object.values (trades || []).map (trade => this.extend (this.parseTrade (trade, market), params))
+        let result = Object.values (trades || []).map ((trade) => this.extend (this.parseTrade (trade, market), params))
         result = sortBy (result, 'timestamp')
         const symbol = (market !== undefined) ? market['symbol'] : undefined
         return this.filterBySymbolSinceLimit (result, symbol, since, limit)
@@ -4540,7 +5689,7 @@ module.exports = class Exchange {
         // if (!this.isArray (transactions)) {
         //     throw new ExchangeError (this.id + ' parseTransactions expected an array in the transactions argument, but got ' + typeof transactions);
         // }
-        let result = Object.values (transactions || []).map (transaction => this.extend (this.parseTransaction (transaction, currency), params))
+        let result = Object.values (transactions || []).map ((transaction) => this.extend (this.parseTransaction (transaction, currency), params))
         result = this.sortBy (result, 'timestamp');
         const code = (currency !== undefined) ? currency['code'] : undefined;
         return this.filterByCurrencySinceLimit (result, code, since, limit);
@@ -4878,7 +6027,7 @@ module.exports = class Exchange {
 
 
 }).call(this,require("buffer").Buffer)
-},{"../static_dependencies/BN/bn":123,"./errors":9,"./functions":10,"buffer":182}],8:[function(require,module,exports){
+},{"../static_dependencies/BN/bn":120,"./errors":10,"./functions":11,"buffer":179}],9:[function(require,module,exports){
 'use strict';
 
 const errorHierarchy = {
@@ -4924,7 +6073,7 @@ const errorHierarchy = {
 
 module.exports = errorHierarchy;
 
-},{}],9:[function(require,module,exports){
+},{}],10:[function(require,module,exports){
 'use strict';
 
 const errorHierarchy = require ('./errorHierarchy.js')
@@ -4977,7 +6126,7 @@ module.exports = subclass (
     errorHierarchy
 )
 
-},{"./errorHierarchy.js":8}],10:[function(require,module,exports){
+},{"./errorHierarchy.js":9}],11:[function(require,module,exports){
 'use strict';
 
 /*  ------------------------------------------------------------------------ */
@@ -5007,7 +6156,7 @@ module.exports = unCamelCasePropertyNames (Object.assign ({}
 
 /*  ------------------------------------------------------------------------ */
 
-},{"./functions/crypto":11,"./functions/encode":12,"./functions/generic":13,"./functions/misc":14,"./functions/number":15,"./functions/platform":16,"./functions/string":17,"./functions/throttle":18,"./functions/time":19,"./functions/type":20}],11:[function(require,module,exports){
+},{"./functions/crypto":12,"./functions/encode":13,"./functions/generic":14,"./functions/misc":15,"./functions/number":16,"./functions/platform":17,"./functions/string":18,"./functions/throttle":19,"./functions/time":20,"./functions/type":21}],12:[function(require,module,exports){
 'use strict'
 
 /*  ------------------------------------------------------------------------ */
@@ -5156,7 +6305,7 @@ module.exports = {
 
 /*  ------------------------------------------------------------------------ */
 
-},{"../../static_dependencies/BN/bn.js":123,"../../static_dependencies/crypto-js/crypto-js":124,"./../../static_dependencies/elliptic/lib/elliptic":125,"./../../static_dependencies/node-rsa/NodeRSA":140,"./../errors":9,"./encode":12,"./string":17}],12:[function(require,module,exports){
+},{"../../static_dependencies/BN/bn.js":120,"../../static_dependencies/crypto-js/crypto-js":121,"./../../static_dependencies/elliptic/lib/elliptic":122,"./../../static_dependencies/node-rsa/NodeRSA":137,"./../errors":10,"./encode":13,"./string":18}],13:[function(require,module,exports){
 "use strict";
 
 /*  ------------------------------------------------------------------------ */
@@ -5229,7 +6378,7 @@ module.exports['byteArrayToWordArray'] = byteArrayToWordArray
 
 /*  ------------------------------------------------------------------------ */
 
-},{"../../static_dependencies/BN/bn":123,"../../static_dependencies/crypto-js/crypto-js":124,"../../static_dependencies/qs/index":156}],13:[function(require,module,exports){
+},{"../../static_dependencies/BN/bn":120,"../../static_dependencies/crypto-js/crypto-js":121,"../../static_dependencies/qs/index":153}],14:[function(require,module,exports){
 "use strict";
 
 /*  ------------------------------------------------------------------------ */
@@ -5450,22 +6599,19 @@ module.exports =
 /*  .............................................   */
 
     , deepExtend: function deepExtend (...xs) {
-
         let out = undefined
-
         for (const x of xs) {
-
             if (isDictionary (x)) {
-
-                if (!isObject (out))
+                if (!isObject (out)) {
                     out = {}
-
-                for (const k in x)
+                }
+                for (const k in x) {
                     out[k] = deepExtend (out[k], x[k])
-
-            } else out = x
+                }
+            } else {
+                out = x
+            }
         }
-
         return out
     }
 
@@ -5473,7 +6619,7 @@ module.exports =
 
 }
 
-},{"./type":20}],14:[function(require,module,exports){
+},{"./type":21}],15:[function(require,module,exports){
 'use strict';
 
 const { ROUND_UP, ROUND_DOWN } = require ('./number')
@@ -5606,7 +6752,7 @@ module.exports = {
 
 /*  ------------------------------------------------------------------------ */
 
-},{"./../errors":9,"./number":15}],15:[function(require,module,exports){
+},{"./../errors":10,"./number":16}],16:[function(require,module,exports){
 'use strict'
 
 /*  ------------------------------------------------------------------------
@@ -5654,23 +6800,27 @@ function numberToString (x) { // avoids scientific notation for too large and to
 
     if (typeof x === 'string') return x
 
+    const s = x.toString ()
     if (Math.abs (x) < 1.0) {
-        const s = x.toString ()
         const e = parseInt (s.split ('e-')[1])
         const neg = (s[0] === '-')
         if (e) {
             x *= Math.pow (10, e - 1)
             x = (neg ? '-' : '') + '0.' + (new Array (e)).join ('0') + x.toString ().substring (neg ? 3 : 2)
+            return x
         }
     } else {
-        let e = parseInt (x.toString ().split ('+')[1])
-        if (e > 20) {
-            e -= 20
-            x /= Math.pow (10, e)
-            x += (new Array (e + 1)).join ('0')
+        const parts = s.split ('e')
+        if (parts[1]) {
+            let e = parseInt (parts[1])
+            const m = parts[0].split ('.')
+            if (m[1]) {
+                e -= m[1].length
+            }
+            return m[0] + m[1] + (new Array (e + 1)).join ('0')
         }
     }
-    return x.toString ()
+    return s;
 }
 
 //-----------------------------------------------------------------------------
@@ -5717,8 +6867,9 @@ const decimalToPrecision = (x, roundingMode
     if (countingMode === TICK_SIZE) {
         const precisionDigitsString = decimalToPrecision (numPrecisionDigits, ROUND, 100, DECIMAL_PLACES, NO_PADDING)
         const newNumPrecisionDigits = precisionFromString (precisionDigitsString)
-        const missing = x % numPrecisionDigits
+        let missing = x % numPrecisionDigits
         // See: https://github.com/ccxt/ccxt/pull/6486
+        missing = Number (decimalToPrecision (missing, ROUND, 8, DECIMAL_PLACES, NO_PADDING));
         const fpError = decimalToPrecision (missing / numPrecisionDigits, ROUND, Math.max (newNumPrecisionDigits, 8), DECIMAL_PLACES, NO_PADDING)
         if (precisionFromString (fpError) !== 0) {
             if (roundingMode === ROUND) {
@@ -5938,7 +7089,7 @@ module.exports = {
 
 /*  ------------------------------------------------------------------------ */
 
-},{}],16:[function(require,module,exports){
+},{}],17:[function(require,module,exports){
 (function (process){
 "use strict";
 
@@ -5979,7 +7130,7 @@ module.exports = {
     defaultFetch,
 }
 }).call(this,require('_process'))
-},{"../../static_dependencies/fetch-ponyfill/fetch-node":138,"_process":204}],17:[function(require,module,exports){
+},{"../../static_dependencies/fetch-ponyfill/fetch-node":135,"_process":201}],18:[function(require,module,exports){
 "use strict";
 
 /*  ------------------------------------------------------------------------ */
@@ -6002,7 +7153,7 @@ module.exports =
 
 /*  ------------------------------------------------------------------------ */
 
-},{}],18:[function(require,module,exports){
+},{}],19:[function(require,module,exports){
 "use strict";
 
 /*  ------------------------------------------------------------------------ */
@@ -6068,7 +7219,7 @@ module.exports = {
 
 /*  ------------------------------------------------------------------------ */
 
-},{"./time":19}],19:[function(require,module,exports){
+},{"./time":20}],20:[function(require,module,exports){
 'use strict';
 
 /*  ------------------------------------------------------------------------ */
@@ -6255,7 +7406,7 @@ module.exports =
 
 /*  ------------------------------------------------------------------------ */
 
-},{}],20:[function(require,module,exports){
+},{}],21:[function(require,module,exports){
 "use strict";
 
 /*  ------------------------------------------------------------------------ */
@@ -6322,7 +7473,7 @@ module.exports = {
 
 /*  ------------------------------------------------------------------------ */
 
-},{}],21:[function(require,module,exports){
+},{}],22:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -6354,7 +7505,7 @@ module.exports = class bcex extends Exchange {
                 'fetchTradingLimits': true,
             },
             'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/43362240-21c26622-92ee-11e8-9464-5801ec526d77.jpg',
+                'logo': 'https://user-images.githubusercontent.com/51840849/77231516-851c6900-6bac-11ea-8fd6-ee5c23eddbd4.jpg',
                 'api': 'https://www.bcex.top',
                 'www': 'https://www.bcex.top',
                 'doc': 'https://github.com/BCEX-TECHNOLOGY-LIMITED/API_Docs/wiki/Interface',
@@ -6400,8 +7551,8 @@ module.exports = class bcex extends Exchange {
                 'trading': {
                     'tierBased': false,
                     'percentage': true,
-                    'buy': 0.0,
-                    'sell': 0.2 / 100,
+                    'maker': 0.1 / 100,
+                    'taker': 0.2 / 100,
                 },
                 'funding': {
                     'tierBased': false,
@@ -6694,6 +7845,7 @@ module.exports = class bcex extends Exchange {
             'cost': cost,
             'order': orderId,
             'fee': undefined,
+            'takerOrMaker': undefined,
         };
     }
 
@@ -6842,6 +7994,8 @@ module.exports = class bcex extends Exchange {
             'remaining': this.safeFloat (order, 'numberover'),
             'status': status,
             'fee': undefined,
+            'clientOrderId': undefined,
+            'trades': undefined,
         };
     }
 
@@ -6868,6 +8022,7 @@ module.exports = class bcex extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -6882,6 +8037,7 @@ module.exports = class bcex extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
         return result;
     }
@@ -6996,37 +8152,29 @@ module.exports = class bcex extends Exchange {
             }
         }
     }
-
-    calculateFee (symbol, type, side, amount, price, takerOrMaker = 'taker', params = {}) {
-        const market = this.markets[symbol];
-        const rate = market[side];
-        const cost = parseFloat (this.costToPrecision (symbol, amount * price));
-        return {
-            'type': takerOrMaker,
-            'currency': market['quote'],
-            'rate': rate,
-            'cost': parseFloat (this.feeToPrecision (symbol, rate * cost)),
-        };
-    }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],22:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],23:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
 
-const hitbtc2 = require ('./hitbtc2');
+const hitbtc = require ('./hitbtc');
 // ---------------------------------------------------------------------------
 
-module.exports = class bequant extends hitbtc2 {
+module.exports = class bequant extends hitbtc {
     describe () {
         return this.deepExtend (super.describe (), {
             'id': 'bequant',
             'name': 'Bequant',
             'countries': [ 'MT' ], // Malta
+            'pro': true,
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/55248342-a75dfe00-525a-11e9-8aa2-05e9dca943c6.jpg',
-                'api': 'https://api.bequant.io',
+                'api': {
+                    'public': 'https://api.bequant.io',
+                    'private': 'https://api.bequant.io',
+                },
                 'www': 'https://bequant.io',
                 'doc': [
                     'https://api.bequant.io/',
@@ -7040,7 +8188,7 @@ module.exports = class bequant extends hitbtc2 {
     }
 };
 
-},{"./hitbtc2":92}],23:[function(require,module,exports){
+},{"./hitbtc":90}],24:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -7089,14 +8237,14 @@ module.exports = class bibox extends Exchange {
                 '1w': 'week',
             },
             'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/34902611-2be8bf1a-f830-11e7-91a2-11b2f292e750.jpg',
+                'logo': 'https://user-images.githubusercontent.com/51840849/77257418-3262b000-6c85-11ea-8fb8-20bdf20b3592.jpg',
                 'api': 'https://api.bibox.com',
                 'www': 'https://www.bibox.com',
                 'doc': [
                     'https://biboxcom.github.io/en/',
                 ],
                 'fees': 'https://bibox.zendesk.com/hc/en-us/articles/360002336133',
-                'referral': 'https://www.bibox.com/signPage?id=11114745&lang=en',
+                'referral': 'https://w2.bibox.com/login/register?invite_code=05Kj3I',
             },
             'api': {
                 'public': {
@@ -7129,7 +8277,7 @@ module.exports = class bibox extends Exchange {
                     'tierBased': false,
                     'percentage': true,
                     'taker': 0.001,
-                    'maker': 0.001,
+                    'maker': 0.0008,
                 },
                 'funding': {
                     'tierBased': false,
@@ -7756,6 +8904,7 @@ module.exports = class bibox extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -7770,6 +8919,7 @@ module.exports = class bibox extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
@@ -8008,7 +9158,7 @@ module.exports = class bibox extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],24:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],25:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -8746,6 +9896,7 @@ module.exports = class bigone extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -8933,7 +10084,7 @@ module.exports = class bigone extends Exchange {
         //     }
         //
         const trades = this.safeValue (response, 'data', []);
-        return this.parseTrades (trades, market, since, limit, params);
+        return this.parseTrades (trades, market, since, limit);
     }
 
     parseOrderStatus (status) {
@@ -9265,14 +10416,14 @@ module.exports = class bigone extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],25:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],26:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
 const { ExchangeError, ArgumentsRequired, ExchangeNotAvailable, InsufficientFunds, OrderNotFound, InvalidOrder, DDoSProtection, InvalidNonce, AuthenticationError, InvalidAddress, RateLimitExceeded, PermissionDenied } = require ('./base/errors');
-const { ROUND } = require ('./base/functions/number');
+const { ROUND, TRUNCATE } = require ('./base/functions/number');
 
 //  ---------------------------------------------------------------------------
 
@@ -9325,6 +10476,10 @@ module.exports = class binance extends Exchange {
             },
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/29604020-d5483cdc-87ee-11e7-94c7-d1a8d9169293.jpg',
+                'test': {
+                    'fapiPublic': 'https://testnet.binancefuture.com/fapi/v1',
+                    'fapiPrivate': 'https://testnet.binancefuture.com/fapi/v1',
+                },
                 'api': {
                     'web': 'https://www.binance.com',
                     'wapi': 'https://api.binance.com/wapi/v3',
@@ -9460,6 +10615,8 @@ module.exports = class binance extends Exchange {
                         'ticker/24hr',
                         'ticker/price',
                         'ticker/bookTicker',
+                        'allForceOrders',
+                        'openInterest',
                         'leverageBracket',
                     ],
                 },
@@ -9477,6 +10634,8 @@ module.exports = class binance extends Exchange {
                         'income',
                     ],
                     'post': [
+                        'batchOrders',
+                        'positionSide/dual',
                         'positionMargin',
                         'marginType',
                         'order',
@@ -9487,6 +10646,7 @@ module.exports = class binance extends Exchange {
                         'listenKey',
                     ],
                     'delete': [
+                        'batchOrders',
                         'order',
                         'allOpenOrders',
                         'listenKey',
@@ -9772,6 +10932,13 @@ module.exports = class binance extends Exchange {
                     'max': this.safeFloat (filter, 'maxQty'),
                 };
             }
+            if ('MARKET_LOT_SIZE' in filters) {
+                const filter = this.safeValue (filters, 'MARKET_LOT_SIZE', {});
+                entry['limits']['market'] = {
+                    'min': this.safeFloat (filter, 'minQty'),
+                    'max': this.safeFloat (filter, 'maxQty'),
+                };
+            }
             if ('MIN_NOTIONAL' in filters) {
                 entry['limits']['cost']['min'] = this.safeFloat (filters['MIN_NOTIONAL'], 'minNotional');
             }
@@ -9946,7 +11113,7 @@ module.exports = class binance extends Exchange {
     }
 
     async fetchStatus (params = {}) {
-        const response = await this.wapiGetSystemStatus ();
+        const response = await this.wapiGetSystemStatus (params);
         let status = this.safeValue (response, 'status');
         if (status !== undefined) {
             status = (status === 0) ? 'ok' : 'maintenance';
@@ -10233,6 +11400,46 @@ module.exports = class binance extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //  spot
+        //
+        //     {
+        //         "symbol": "LTCBTC",
+        //         "orderId": 1,
+        //         "clientOrderId": "myOrder1",
+        //         "price": "0.1",
+        //         "origQty": "1.0",
+        //         "executedQty": "0.0",
+        //         "cummulativeQuoteQty": "0.0",
+        //         "status": "NEW",
+        //         "timeInForce": "GTC",
+        //         "type": "LIMIT",
+        //         "side": "BUY",
+        //         "stopPrice": "0.0",
+        //         "icebergQty": "0.0",
+        //         "time": 1499827319559,
+        //         "updateTime": 1499827319559,
+        //         "isWorking": true
+        //     }
+        //
+        //  futures
+        //
+        //     {
+        //         "symbol": "BTCUSDT",
+        //         "orderId": 1,
+        //         "clientOrderId": "myOrder1",
+        //         "price": "0.1",
+        //         "origQty": "1.0",
+        //         "executedQty": "1.0",
+        //         "cumQuote": "10.0",
+        //         "status": "NEW",
+        //         "timeInForce": "GTC",
+        //         "type": "LIMIT",
+        //         "side": "BUY",
+        //         "stopPrice": "0.0",
+        //         "updateTime": 1499827319559
+        //     }
+        //
         const status = this.parseOrderStatus (this.safeString (order, 'status'));
         let symbol = undefined;
         const marketId = this.safeString (order, 'symbol');
@@ -10317,9 +11524,11 @@ module.exports = class binance extends Exchange {
                 cost = parseFloat (this.costToPrecision (symbol, cost));
             }
         }
+        const clientOrderId = this.safeString (order, 'clientOrderId');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -10362,10 +11571,12 @@ module.exports = class binance extends Exchange {
         };
         if (uppercaseType === 'MARKET') {
             const quoteOrderQty = this.safeFloat (params, 'quoteOrderQty');
+            const precision = market['precision']['price'];
             if (quoteOrderQty !== undefined) {
-                request['quoteOrderQty'] = this.costToPrecision (symbol, quoteOrderQty);
+                request['quoteOrderQty'] = this.decimalToPrecision (quoteOrderQty, TRUNCATE, precision, this.precisionMode);
+                params = this.omit (params, 'quoteOrderQty');
             } else if (price !== undefined) {
-                request['quoteOrderQty'] = this.costToPrecision (symbol, amount * price);
+                request['quoteOrderQty'] = this.decimalToPrecision (amount * price, TRUNCATE, precision, this.precisionMode);
             } else {
                 request['quantity'] = this.amountToPrecision (symbol, amount);
             }
@@ -11040,7 +12251,7 @@ module.exports = class binance extends Exchange {
         if (api === 'wapi') {
             url += '.html';
         }
-        const userDataStream = (path === 'userDataStream');
+        const userDataStream = (path === 'userDataStream') || (path === 'listenKey');
         if (path === 'historicalTrades') {
             if (this.apiKey) {
                 headers = {
@@ -11150,7 +12361,7 @@ module.exports = class binance extends Exchange {
                     }
                     // a workaround for {"code":-2015,"msg":"Invalid API-key, IP, or permissions for action."}
                     // despite that their message is very confusing, it is raised by Binance
-                    // on a temporary ban (the API key is valid, but disabled for a while)
+                    // on a temporary ban, the API key is valid, but disabled for a while
                     if ((error === '-2015') && this.options['hasAlreadyAuthenticatedSuccessfully']) {
                         throw new DDoSProtection (this.id + ' temporary banned: ' + body);
                     }
@@ -11175,7 +12386,7 @@ module.exports = class binance extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],26:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],27:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -11230,7 +12441,7 @@ module.exports = class binanceje extends binance {
 };
 
 
-},{"./binance.js":25}],27:[function(require,module,exports){
+},{"./binance.js":26}],28:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -11275,7 +12486,7 @@ module.exports = class binanceus extends binance {
 };
 
 
-},{"./binance.js":25}],28:[function(require,module,exports){
+},{"./binance.js":26}],29:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -11557,6 +12768,7 @@ module.exports = class bit2c extends Exchange {
         const status = this.safeString (order, 'status');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -11572,6 +12784,7 @@ module.exports = class bit2c extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -11695,7 +12908,7 @@ module.exports = class bit2c extends Exchange {
 };
 
 
-},{"./base/Exchange":7,"./base/errors":9}],29:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],30:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -12011,6 +13224,7 @@ module.exports = class bitbank extends Exchange {
         const side = this.safeStringLower (order, 'side');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -12263,13 +13477,13 @@ module.exports = class bitbank extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],30:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],31:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { InvalidNonce, InsufficientFunds, AuthenticationError, InvalidOrder, ExchangeError, OrderNotFound, AccountSuspended, BadSymbol } = require ('./base/errors');
+const { InvalidNonce, InsufficientFunds, AuthenticationError, InvalidOrder, ExchangeError, OrderNotFound, AccountSuspended, BadSymbol, OrderImmediatelyFillable, RateLimitExceeded } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -12319,6 +13533,7 @@ module.exports = class bitbay extends Exchange {
                     'https://github.com/BitBayNet/API',
                     'https://docs.bitbay.net/v1.0.1-en/reference',
                 ],
+                'support': 'https://support.bitbay.net',
                 'fees': 'https://bitbay.net/en/fees',
             },
             'api': {
@@ -12423,6 +13638,8 @@ module.exports = class bitbay extends Exchange {
                 'FUNDS_NOT_SUFFICIENT': InsufficientFunds,
                 'OFFER_FUNDS_NOT_EXCEEDING_MINIMUMS': InvalidOrder,
                 'OFFER_NOT_FOUND': OrderNotFound,
+                'OFFER_WOULD_HAVE_BEEN_PARTIALLY_FILLED': OrderImmediatelyFillable,
+                'ACTION_LIMIT_EXCEEDED': RateLimitExceeded,
             },
         });
     }
@@ -12554,6 +13771,7 @@ module.exports = class bitbay extends Exchange {
         }
         return {
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -13309,6 +14527,7 @@ module.exports = class bitbay extends Exchange {
             'average': undefined,
             'fee': undefined,
             'trades': trades,
+            'clientOrderId': undefined,
         };
     }
 
@@ -13475,7 +14694,7 @@ module.exports = class bitbay extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],31:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],32:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -14323,6 +15542,7 @@ module.exports = class bitfinex extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -14336,6 +15556,8 @@ module.exports = class bitfinex extends Exchange {
             'filled': this.safeFloat (order, 'executed_amount'),
             'status': status,
             'fee': undefined,
+            'cost': undefined,
+            'trades': undefined,
         };
     }
 
@@ -14657,7 +15879,7 @@ module.exports = class bitfinex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],32:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],33:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -15177,6 +16399,26 @@ module.exports = class bitfinex2 extends bitfinex {
         return this.parseTicker (ticker, market);
     }
 
+    parseSymbol (marketId) {
+        if (marketId === undefined) {
+            return marketId;
+        }
+        marketId = marketId.replace ('t', '');
+        let baseId = undefined;
+        let quoteId = undefined;
+        if (marketId.indexOf (':') >= 0) {
+            const parts = marketId.split (':');
+            baseId = parts[0];
+            quoteId = parts[1];
+        } else {
+            baseId = marketId.slice (0, 3);
+            quoteId = marketId.slice (3, 6);
+        }
+        const base = this.safeCurrencyCode (baseId);
+        const quote = this.safeCurrencyCode (quoteId);
+        return base + '/' + quote;
+    }
+
     parseTrade (trade, market = undefined) {
         //
         // fetchTrades (public)
@@ -15223,21 +16465,29 @@ module.exports = class bitfinex2 extends bitfinex {
         const timestamp = trade[timestampIndex];
         if (isPrivate) {
             const marketId = trade[1];
-            if (marketId !== undefined) {
-                if (marketId in this.markets_by_id) {
-                    market = this.markets_by_id[marketId];
-                    symbol = market['symbol'];
-                } else {
-                    symbol = marketId;
-                }
+            if (marketId in this.markets_by_id) {
+                market = this.markets_by_id[marketId];
+                symbol = market['symbol'];
+            } else {
+                symbol = this.parseSymbol (marketId);
             }
             orderId = trade[3].toString ();
             takerOrMaker = (trade[8] === 1) ? 'maker' : 'taker';
-            const feeCost = trade[9];
+            let feeCost = trade[9];
             const feeCurrency = this.safeCurrencyCode (trade[10]);
             if (feeCost !== undefined) {
+                feeCost = -feeCost;
+                if (symbol in this.markets) {
+                    feeCost = this.feeToPrecision (symbol, feeCost);
+                } else {
+                    const currencyId = 'f' + feeCurrency;
+                    if (currencyId in this.currencies_by_id) {
+                        const currency = this.currencies_by_id[currencyId];
+                        feeCost = this.currencyToPrecision (currency['code'], feeCost);
+                    }
+                }
                 fee = {
-                    'cost': parseFloat (this.feeToPrecision (symbol, Math.abs (feeCost))),
+                    'cost': parseFloat (feeCost),
                     'currency': feeCurrency,
                 };
             }
@@ -15331,7 +16581,9 @@ module.exports = class bitfinex2 extends bitfinex {
             'PARTIALLY FILLED': 'open',
             'EXECUTED': 'closed',
             'CANCELED': 'canceled',
+            'CANCELED was: PARTIALLY FILLED': 'canceled',
             'INSUFFICIENT MARGIN': 'canceled',
+            'INSUFFICIENT BALANCE (G1) was: PARTIALLY FILLED': 'canceled',
             'RSN_DUST': 'rejected',
             'RSN_PAUSE': 'rejected',
         };
@@ -15344,11 +16596,15 @@ module.exports = class bitfinex2 extends bitfinex {
         const marketId = this.safeString (order, 3);
         if (marketId in this.markets_by_id) {
             market = this.markets_by_id[marketId];
+        } else {
+            symbol = this.parseSymbol (marketId);
         }
-        if (market !== undefined) {
+        if ((symbol === undefined) && (market !== undefined)) {
             symbol = market['symbol'];
         }
-        const timestamp = this.safeTimestamp (order, 5);
+        // https://github.com/ccxt/ccxt/issues/6686
+        // const timestamp = this.safeTimestamp (order, 5);
+        const timestamp = this.safeInteger (order, 5);
         const remaining = Math.abs (this.safeFloat (order, 6));
         const amount = Math.abs (this.safeFloat (order, 7));
         const filled = amount - remaining;
@@ -15364,9 +16620,11 @@ module.exports = class bitfinex2 extends bitfinex {
         const price = this.safeFloat (order, 16);
         const average = this.safeFloat (order, 17);
         const cost = price * filled;
+        const clientOrderId = this.safeString (order, 2);
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -15816,7 +17074,7 @@ module.exports = class bitfinex2 extends bitfinex {
     }
 };
 
-},{"./base/errors":9,"./bitfinex.js":31}],33:[function(require,module,exports){
+},{"./base/errors":10,"./bitfinex.js":32}],34:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -16175,6 +17433,7 @@ module.exports = class bitflyer extends Exchange {
         const id = this.safeString (order, 'child_order_acceptance_id');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -16189,6 +17448,8 @@ module.exports = class bitflyer extends Exchange {
             'filled': filled,
             'remaining': remaining,
             'fee': fee,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
@@ -16305,7 +17566,7 @@ module.exports = class bitflyer extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],34:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],35:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -16620,6 +17881,7 @@ module.exports = class bitforex extends Exchange {
             'cost': cost,
             'order': orderId,
             'fee': undefined,
+            'takerOrMaker': undefined,
         };
     }
 
@@ -16773,6 +18035,7 @@ module.exports = class bitforex extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -16787,6 +18050,7 @@ module.exports = class bitforex extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
         return result;
     }
@@ -16904,13 +18168,13 @@ module.exports = class bitforex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],35:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],36:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError, ExchangeNotAvailable, AuthenticationError, BadRequest, PermissionDenied, InvalidAddress } = require ('./base/errors');
+const { ExchangeError, ExchangeNotAvailable, AuthenticationError, BadRequest, PermissionDenied, InvalidAddress, ArgumentsRequired } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -17036,6 +18300,8 @@ module.exports = class bithumb extends Exchange {
                         'max': undefined,
                     },
                 },
+                'baseId': undefined,
+                'quoteId': undefined,
             });
         }
         return result;
@@ -17249,18 +18515,20 @@ module.exports = class bithumb extends Exchange {
     async cancelOrder (id, symbol = undefined, params = {}) {
         const side_in_params = ('side' in params);
         if (!side_in_params) {
-            throw new ExchangeError (this.id + ' cancelOrder requires a `side` parameter (sell or buy) and a `currency` parameter');
+            throw new ArgumentsRequired (this.id + ' cancelOrder requires a `symbol` argument and a `side` parameter (sell or buy)');
         }
-        const currency = this.safeString (params, 'currency');
-        if (currency === undefined) {
-            throw new ExchangeError (this.id + ' cancelOrder requires a `currency` parameter (a currency id)');
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' cancelOrder requires a `symbol` argument and a `side` parameter (sell or buy)');
         }
+        const market = this.market (symbol);
         const side = (params['side'] === 'buy') ? 'bid' : 'ask';
         params = this.omit (params, [ 'side', 'currency' ]);
+        // https://github.com/ccxt/ccxt/issues/6771
         const request = {
             'order_id': id,
             'type': side,
-            'currency': currency,
+            'order_currency': market['base'],
+            'payment_currency': market['quote'],
         };
         return await this.privatePostTradeCancel (this.extend (request, params));
     }
@@ -17277,7 +18545,7 @@ module.exports = class bithumb extends Exchange {
         if (currency === 'XRP' || currency === 'XMR') {
             const destination = this.safeString (params, 'destination');
             if ((tag === undefined) && (destination === undefined)) {
-                throw new ExchangeError (this.id + ' ' + code + ' withdraw() requires a tag argument or an extra destination param');
+                throw new ArgumentsRequired (this.id + ' ' + code + ' withdraw() requires a tag argument or an extra destination param');
             } else if (tag !== undefined) {
                 request['destination'] = tag;
             }
@@ -17355,7 +18623,7 @@ module.exports = class bithumb extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],36:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],37:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -17383,387 +18651,7 @@ module.exports = class bitkk extends zb {
     }
 };
 
-},{"./zb.js":176}],37:[function(require,module,exports){
-'use strict';
-
-//  ---------------------------------------------------------------------------
-
-const Exchange = require ('./base/Exchange');
-const { NotSupported } = require ('./base/errors');
-
-//  ---------------------------------------------------------------------------
-
-module.exports = class bitlish extends Exchange {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'bitlish',
-            'name': 'Bitlish',
-            'countries': [ 'GB', 'EU', 'RU' ],
-            'rateLimit': 1500,
-            'version': 'v1',
-            'has': {
-                'CORS': false,
-                'fetchTickers': true,
-                'fetchOHLCV': true,
-                'withdraw': true,
-            },
-            'timeframes': {
-                '1h': 3600,
-            },
-            'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766275-dcfc6c30-5ed3-11e7-839d-00a846385d0b.jpg',
-                'api': 'https://bitlish.com/api',
-                'www': 'https://bitlish.com',
-                'doc': 'https://bitlish.com/api',
-                'fees': 'https://bitlish.com/fees',
-            },
-            'requiredCredentials': {
-                'apiKey': true,
-                'secret': false,
-            },
-            'fees': {
-                'trading': {
-                    'tierBased': false,
-                    'percentage': true,
-                    'taker': 0.3 / 100, // anonymous 0.3%, verified 0.2%
-                    'maker': 0.2 / 100, // anonymous 0.2%, verified 0.1%
-                },
-                'funding': {
-                    'tierBased': false,
-                    'percentage': false,
-                    'withdraw': {
-                        'BTC': 0.001,
-                        'LTC': 0.001,
-                        'DOGE': 0.001,
-                        'ETH': 0.001,
-                        'XMR': 0,
-                        'ZEC': 0.001,
-                        'DASH': 0.0001,
-                        'EUR': 50,
-                    },
-                    'deposit': {
-                        'BTC': 0,
-                        'LTC': 0,
-                        'DOGE': 0,
-                        'ETH': 0,
-                        'XMR': 0,
-                        'ZEC': 0,
-                        'DASH': 0,
-                        'EUR': 0,
-                    },
-                },
-            },
-            'api': {
-                'public': {
-                    'get': [
-                        'instruments',
-                        'ohlcv',
-                        'pairs',
-                        'tickers',
-                        'trades_depth',
-                        'trades_history',
-                    ],
-                    'post': [
-                        'instruments',
-                        'ohlcv',
-                        'pairs',
-                        'tickers',
-                        'trades_depth',
-                        'trades_history',
-                    ],
-                },
-                'private': {
-                    'post': [
-                        'accounts_operations',
-                        'balance',
-                        'cancel_trade',
-                        'cancel_trades_by_ids',
-                        'cancel_all_trades',
-                        'create_bcode',
-                        'create_template_wallet',
-                        'create_trade',
-                        'deposit',
-                        'list_accounts_operations_from_ts',
-                        'list_active_trades',
-                        'list_bcodes',
-                        'list_my_matches_from_ts',
-                        'list_my_trades',
-                        'list_my_trads_from_ts',
-                        'list_payment_methods',
-                        'list_payments',
-                        'redeem_code',
-                        'resign',
-                        'signin',
-                        'signout',
-                        'trade_details',
-                        'trade_options',
-                        'withdraw',
-                        'withdraw_by_id',
-                    ],
-                },
-            },
-            'commonCurrencies': {
-                'DSH': 'DASH',
-                'XDG': 'DOGE',
-            },
-        });
-    }
-
-    async fetchMarkets (params = {}) {
-        const response = await this.publicGetPairs (params);
-        const result = [];
-        const keys = Object.keys (response);
-        for (let i = 0; i < keys.length; i++) {
-            const key = keys[i];
-            const market = response[key];
-            const id = this.safeString (market, 'id');
-            const name = this.safeString (market, 'name');
-            const [ baseId, quoteId ] = name.split ('/');
-            const base = this.safeCurrencyCode (baseId);
-            const quote = this.safeCurrencyCode (quoteId);
-            const symbol = base + '/' + quote;
-            result.push ({
-                'id': id,
-                'symbol': symbol,
-                'base': base,
-                'quote': quote,
-                'baseId': baseId,
-                'quoteId': quoteId,
-                'info': market,
-            });
-        }
-        return result;
-    }
-
-    parseTicker (ticker, market) {
-        const timestamp = this.milliseconds ();
-        let symbol = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        const last = this.safeFloat (ticker, 'last');
-        return {
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': symbol,
-            'high': this.safeFloat (ticker, 'max'),
-            'low': this.safeFloat (ticker, 'min'),
-            'bid': this.safeFloat (ticker, 'bid'),
-            'bidVolume': undefined,
-            'ask': this.safeFloat (ticker, 'ask'),
-            'askVolume': undefined,
-            'vwap': undefined,
-            'open': this.safeFloat (ticker, 'first'),
-            'close': last,
-            'last': last,
-            'previousClose': undefined,
-            'change': undefined,
-            'percentage': this.safeFloat (ticker, 'prc') * 100,
-            'average': undefined,
-            'baseVolume': this.safeFloat (ticker, 'sum'),
-            'quoteVolume': undefined,
-            'info': ticker,
-        };
-    }
-
-    async fetchTickers (symbols = undefined, params = {}) {
-        await this.loadMarkets ();
-        const tickers = await this.publicGetTickers (params);
-        const ids = Object.keys (tickers);
-        const result = {};
-        for (let i = 0; i < ids.length; i++) {
-            const id = ids[i];
-            const market = this.safeValue (this.markets_by_id, id);
-            let symbol = undefined;
-            if (market !== undefined) {
-                symbol = market['symbol'];
-            } else {
-                const baseId = id.slice (0, 3);
-                const quoteId = id.slice (3, 6);
-                const base = this.safeCurrencyCode (baseId);
-                const quote = this.safeCurrencyCode (quoteId);
-                symbol = base + '/' + quote;
-            }
-            const ticker = tickers[id];
-            result[symbol] = this.parseTicker (ticker, market);
-        }
-        return result;
-    }
-
-    async fetchTicker (symbol, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const response = await this.publicGetTickers (params);
-        const marketId = market['id'];
-        return this.parseTicker (response[marketId], market);
-    }
-
-    async fetchOHLCV (symbol, timeframe = '1h', since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        // let market = this.market (symbol);
-        const now = this.seconds ();
-        let start = now - 86400 * 30; // last 30 days
-        if (since !== undefined) {
-            start = parseInt (since / 1000);
-        }
-        const interval = [ start.toString (), undefined ];
-        const request = {
-            'time_range': interval,
-        };
-        return await this.publicPostOhlcv (this.extend (request, params));
-    }
-
-    async fetchOrderBook (symbol, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'pair_id': this.marketId (symbol),
-        };
-        const response = await this.publicGetTradesDepth (this.extend (request, params));
-        let timestamp = undefined;
-        const last = this.safeInteger (response, 'last');
-        if (last !== undefined) {
-            timestamp = parseInt (last / 1000);
-        }
-        return this.parseOrderBook (response, timestamp, 'bid', 'ask', 'price', 'volume');
-    }
-
-    parseTrade (trade, market = undefined) {
-        const side = (trade['dir'] === 'bid') ? 'buy' : 'sell';
-        let symbol = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        let timestamp = this.safeInteger (trade, 'created');
-        if (timestamp !== undefined) {
-            timestamp = parseInt (timestamp / 1000);
-        }
-        const price = this.safeFloat (trade, 'price');
-        const amount = this.safeFloat (trade, 'amount');
-        let cost = undefined;
-        if (amount !== undefined) {
-            if (price !== undefined) {
-                cost = price * amount;
-            }
-        }
-        return {
-            'id': undefined,
-            'info': trade,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': symbol,
-            'order': undefined,
-            'type': undefined,
-            'side': side,
-            'takerOrMaker': undefined,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-            'fee': undefined,
-        };
-    }
-
-    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const response = await this.publicGetTradesHistory (this.extend ({
-            'pair_id': market['id'],
-        }, params));
-        return this.parseTrades (response['list'], market, since, limit);
-    }
-
-    async fetchBalance (params = {}) {
-        await this.loadMarkets ();
-        const response = await this.privatePostBalance (params);
-        const result = { 'info': response };
-        const currencyIds = Object.keys (response);
-        for (let i = 0; i < currencyIds.length; i++) {
-            const currencyId = currencyIds[i];
-            const code = this.safeCurrencyCode (currencyId);
-            const account = this.account ();
-            const balance = this.safeValue (response, currencyId, {});
-            account['free'] = this.safeFloat (balance, 'funds');
-            account['used'] = this.safeFloat (balance, 'holded');
-            result[code] = account;
-        }
-        return this.parseBalance (result);
-    }
-
-    async signIn (params = {}) {
-        const request = {
-            'login': this.login,
-            'passwd': this.password,
-        };
-        return await this.privatePostSignin (this.extend (request, params));
-    }
-
-    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'pair_id': this.marketId (symbol),
-            'dir': (side === 'buy') ? 'bid' : 'ask',
-            'amount': amount,
-        };
-        if (type === 'limit') {
-            request['price'] = price;
-        }
-        const response = await this.privatePostCreateTrade (this.extend (request, params));
-        const id = this.safeString (response, 'id');
-        return {
-            'info': response,
-            'id': id,
-        };
-    }
-
-    async cancelOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'id': id,
-        };
-        return await this.privatePostCancelTrade (this.extend (request, params));
-    }
-
-    async withdraw (code, amount, address, tag = undefined, params = {}) {
-        if (code !== 'BTC') {
-            // they did not document other types...
-            throw new NotSupported (this.id + ' currently supports BTC withdrawals only, until they document other currencies...');
-        }
-        this.checkAddress (address);
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        const request = {
-            'currency': currency['id'],
-            'amount': parseFloat (amount),
-            'account': address,
-            'payment_method': 'bitcoin', // they did not document other types...
-        };
-        const response = await this.privatePostWithdraw (this.extend (request, params));
-        return {
-            'info': response,
-            'id': response['message_id'],
-        };
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = this.urls['api'] + '/' + this.version + '/' + path;
-        if (api === 'public') {
-            if (method === 'GET') {
-                if (Object.keys (params).length) {
-                    url += '?' + this.urlencode (params);
-                }
-            } else {
-                body = this.json (params);
-                headers = { 'Content-Type': 'application/json' };
-            }
-        } else {
-            this.checkRequiredCredentials ();
-            body = this.json (this.extend ({ 'token': this.apiKey }, params));
-            headers = { 'Content-Type': 'application/json' };
-        }
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-};
-
-},{"./base/Exchange":7,"./base/errors":9}],38:[function(require,module,exports){
+},{"./zb.js":173}],38:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -17808,6 +18696,7 @@ module.exports = class bitmart extends Exchange {
                 'www': 'https://www.bitmart.com/',
                 'doc': 'https://github.com/bitmartexchange/bitmart-official-api-docs',
                 'referral': 'http://www.bitmart.com/?r=rQCFLh',
+                'fees': 'https://www.bitmart.com/fee/en',
             },
             'requiredCredentials': {
                 'apiKey': true,
@@ -18015,6 +18904,7 @@ module.exports = class bitmart extends Exchange {
                 'precision': precision,
                 'limits': limits,
                 'info': market,
+                'active': undefined,
             });
         }
         return result;
@@ -18448,6 +19338,7 @@ module.exports = class bitmart extends Exchange {
         const type = undefined;
         return {
             'id': id,
+            'clientOrderId': undefined,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -18689,7 +19580,7 @@ module.exports = class bitmart extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],39:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],39:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -18744,7 +19635,7 @@ module.exports = class bitmax extends Exchange {
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/66820319-19710880-ef49-11e9-8fbe-16be62a11992.jpg',
                 'api': 'https://bitmax.io',
-                'test': 'https://bitmax-test.io/api',
+                'test': 'https://bitmax-test.io',
                 'www': 'https://bitmax.io',
                 'doc': [
                     'https://github.com/bitmax-exchange/api-doc/blob/master/bitmax-api-doc-v1.2.md',
@@ -18813,12 +19704,17 @@ module.exports = class bitmax extends Exchange {
                 'exact': {
                     '2100': AuthenticationError, // {"code":2100,"message":"ApiKeyFailure"}
                     '5002': BadSymbol, // {"code":5002,"message":"Invalid Symbol"}
+                    '6001': BadSymbol, // {"code":6001,"message":"Trading is disabled on symbol."}
                     '6010': InsufficientFunds, // {'code': 6010, 'message': 'Not enough balance.'}
                     '60060': InvalidOrder, // { 'code': 60060, 'message': 'The order is already filled or canceled.' }
                     '600503': InvalidOrder, // {"code":600503,"message":"Notional is too small."}
                 },
                 'broad': {},
             },
+            'commonCurrencies': {
+                'BTCBEAR': 'BEAR',
+                'BTCBULL': 'BULL',
+            },
         });
     }
 
@@ -19414,9 +20310,11 @@ module.exports = class bitmax extends Exchange {
             'currency': this.safeString (order, 'feeAsset'),
         };
         const average = this.safeFloat (order, 'avgPrice');
+        const clientOrderId = id;
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -19837,7 +20735,7 @@ module.exports = class bitmax extends Exchange {
                 headers['x-auth-coid'] = coid;
             }
             const signature = this.hmac (this.encode (auth), this.encode (this.secret), 'sha256', 'base64');
-            headers['x-auth-signature'] = signature;
+            headers['x-auth-signature'] = this.decode (signature);
             if (method === 'GET') {
                 if (Object.keys (query).length) {
                     url += '?' + this.urlencode (query);
@@ -19872,7 +20770,7 @@ module.exports = class bitmax extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],40:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],40:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -19928,7 +20826,7 @@ module.exports = class bitmex extends Exchange {
                     'https://github.com/BitMEX/api-connectors/tree/master/official-http',
                 ],
                 'fees': 'https://www.bitmex.com/app/fees',
-                'referral': 'https://www.bitmex.com/register/rm3C16',
+                'referral': 'https://www.bitmex.com/register/upZpOX',
             },
             'api': {
                 'public': {
@@ -20986,9 +21884,11 @@ module.exports = class bitmex extends Exchange {
         const id = this.safeString (order, 'orderID');
         const type = this.safeStringLower (order, 'ordType');
         const side = this.safeStringLower (order, 'side');
+        const clientOrderId = this.safeString (order, 'clOrdID');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -21003,6 +21903,7 @@ module.exports = class bitmex extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': undefined,
+            'trades': undefined,
         };
     }
 
@@ -21200,7 +22101,7 @@ module.exports = class bitmex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],41:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],41:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -21342,6 +22243,7 @@ module.exports = class bitso extends Exchange {
                 'info': market,
                 'limits': limits,
                 'precision': precision,
+                'active': undefined,
             });
         }
         return result;
@@ -21572,9 +22474,11 @@ module.exports = class bitso extends Exchange {
                 filled = amount - remaining;
             }
         }
+        const clientOrderId = this.safeString (order, 'client_id');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -21588,6 +22492,8 @@ module.exports = class bitso extends Exchange {
             'filled': filled,
             'status': status,
             'fee': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
@@ -21764,7 +22670,7 @@ module.exports = class bitso extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],42:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],42:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -21783,6 +22689,7 @@ module.exports = class bitstamp extends Exchange {
             'rateLimit': 1000,
             'version': 'v2',
             'userAgent': this.userAgents['chrome'],
+            'pro': true,
             'has': {
                 'CORS': true,
                 'fetchDepositAddress': true,
@@ -22001,8 +22908,27 @@ module.exports = class bitstamp extends Exchange {
             'pair': this.marketId (symbol),
         };
         const response = await this.publicGetOrderBookPair (this.extend (request, params));
-        const timestamp = this.safeTimestamp (response, 'timestamp');
-        return this.parseOrderBook (response, timestamp);
+        //
+        //     {
+        //         "timestamp": "1583652948",
+        //         "microtimestamp": "1583652948955826",
+        //         "bids": [
+        //             [ "8750.00", "1.33685271" ],
+        //             [ "8749.39", "0.07700000" ],
+        //             [ "8746.98", "0.07400000" ],
+        //         ]
+        //         "asks": [
+        //             [ "8754.10", "1.51995636" ],
+        //             [ "8754.71", "1.40000000" ],
+        //             [ "8754.72", "2.50000000" ],
+        //         ]
+        //     }
+        //
+        const microtimestamp = this.safeInteger (response, 'microtimestamp');
+        const timestamp = parseInt (microtimestamp / 1000);
+        const orderbook = this.parseOrderBook (response, timestamp);
+        orderbook['nonce'] = microtimestamp;
+        return orderbook;
     }
 
     async fetchTicker (symbol, params = {}) {
@@ -22714,6 +23640,7 @@ module.exports = class bitstamp extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -22729,6 +23656,7 @@ module.exports = class bitstamp extends Exchange {
             'trades': trades,
             'fee': fee,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -22848,18 +23776,44 @@ module.exports = class bitstamp extends Exchange {
             }
         } else {
             this.checkRequiredCredentials ();
-            const nonce = this.nonce ().toString ();
-            const auth = nonce + this.uid + this.apiKey;
-            const signature = this.encode (this.hmac (this.encode (auth), this.encode (this.secret)));
-            query = this.extend ({
-                'key': this.apiKey,
-                'signature': signature.toUpperCase (),
-                'nonce': nonce,
-            }, query);
-            body = this.urlencode (query);
-            headers = {
-                'Content-Type': 'application/x-www-form-urlencoded',
-            };
+            const authVersion = this.safeValue (this.options, 'auth', 'v2');
+            if ((authVersion === 'v1') || (api === 'v1')) {
+                const nonce = this.nonce ().toString ();
+                const auth = nonce + this.uid + this.apiKey;
+                const signature = this.encode (this.hmac (this.encode (auth), this.encode (this.secret)));
+                query = this.extend ({
+                    'key': this.apiKey,
+                    'signature': signature.toUpperCase (),
+                    'nonce': nonce,
+                }, query);
+                body = this.urlencode (query);
+                headers = {
+                    'Content-Type': 'application/x-www-form-urlencoded',
+                };
+            } else {
+                const xAuth = 'BITSTAMP ' + this.apiKey;
+                const xAuthNonce = this.uuid ();
+                const xAuthTimestamp = this.milliseconds ().toString ();
+                const xAuthVersion = 'v2';
+                let contentType = '';
+                headers = {
+                    'X-Auth': xAuth,
+                    'X-Auth-Nonce': xAuthNonce,
+                    'X-Auth-Timestamp': xAuthTimestamp,
+                    'X-Auth-Version': xAuthVersion,
+                };
+                if (method === 'POST') {
+                    if (Object.keys (query).length) {
+                        body = this.urlencode (query);
+                        contentType = 'application/x-www-form-urlencoded';
+                        headers['Content-Type'] = contentType;
+                    }
+                }
+                const authBody = body ? body : '';
+                const auth = xAuth + method + url.replace ('https://', '') + contentType + xAuthNonce + xAuthTimestamp + xAuthVersion + authBody;
+                const signature = this.encode (this.hmac (this.encode (auth), this.encode (this.secret)));
+                headers['X-Auth-Signature'] = signature;
+            }
         }
         return { 'url': url, 'method': method, 'body': body, 'headers': headers };
     }
@@ -22914,7 +23868,7 @@ module.exports = class bitstamp extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],43:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],43:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -23207,7 +24161,7 @@ module.exports = class bitstamp1 extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],44:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],44:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -23231,7 +24185,7 @@ module.exports = class bittrex extends Exchange {
             // new metainfo interface
             'has': {
                 'CORS': false,
-                'createMarketOrder': false,
+                'createMarketOrder': true,
                 'fetchDepositAddress': true,
                 'fetchClosedOrders': true,
                 'fetchCurrencies': true,
@@ -23273,6 +24227,7 @@ module.exports = class bittrex extends Exchange {
                     'https://bittrex.zendesk.com/hc/en-us/articles/115003684371-BITTREX-SERVICE-FEES-AND-WITHDRAWAL-LIMITATIONS',
                     'https://bittrex.zendesk.com/hc/en-us/articles/115000199651-What-fees-does-Bittrex-charge-',
                 ],
+                'referral': 'https://bittrex.com/Account/Register?referralCode=1ZE-G0G-M3B',
             },
             'api': {
                 'v3': {
@@ -23425,6 +24380,9 @@ module.exports = class bittrex extends Exchange {
                     'INVALID_CURRENCY': ExchangeError,
                     'INVALID_PERMISSION': AuthenticationError,
                     'INSUFFICIENT_FUNDS': InsufficientFunds,
+                    'INVALID_CEILING_MARKET_BUY': InvalidOrder,
+                    'INVALID_FIAT_ACCOUNT': InvalidOrder,
+                    'INVALID_ORDER_TYPE': InvalidOrder,
                     'QUANTITY_NOT_PROVIDED': InvalidOrder,
                     'MIN_TRADE_REQUIREMENT_NOT_MET': InvalidOrder,
                     'ORDER_NOT_OPEN': OrderNotFound,
@@ -23469,10 +24427,10 @@ module.exports = class bittrex extends Exchange {
                 // see the implementation of fetchClosedOrdersV3 below
                 'fetchClosedOrdersMethod': 'fetch_closed_orders_v3',
                 'fetchClosedOrdersFilterBySince': true,
+                // 'createOrderMethod': 'create_order_v1',
             },
             'commonCurrencies': {
                 'BITS': 'SWIFT',
-                'CPC': 'Capricoin',
             },
         });
     }
@@ -23872,6 +24830,74 @@ module.exports = class bittrex extends Exchange {
     }
 
     async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
+        const uppercaseType = type.toUpperCase ();
+        const isMarket = (uppercaseType === 'MARKET');
+        const isCeilingLimit = (uppercaseType === 'CEILING_LIMIT');
+        const isCeilingMarket = (uppercaseType === 'CEILING_MARKET');
+        const isV3 = isMarket || isCeilingLimit || isCeilingMarket;
+        const defaultMethod = isV3 ? 'create_order_v3' : 'create_order_v1';
+        const method = this.safeValue (this.options, 'createOrderMethod', defaultMethod);
+        return await this[method] (symbol, type, side, amount, price, params);
+    }
+
+    async createOrderV3 (symbol, type, side, amount, price = undefined, params = {}) {
+        // A ceiling order is a market or limit order that allows you to specify
+        // the amount of quote currency you want to spend (or receive, if selling)
+        // instead of the quantity of the market currency (e.g. buy $100 USD of BTC
+        // at the current market BTC price)
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const uppercaseType = type.toUpperCase ();
+        const reverseId = market['baseId'] + '-' + market['quoteId'];
+        const request = {
+            'marketSymbol': reverseId,
+            'direction': side.toUpperCase (),
+            'type': uppercaseType, // LIMIT, MARKET, CEILING_LIMIT, CEILING_MARKET
+            // 'quantity': this.amountToPrecision (symbol, amount), // required for limit orders, excluded for ceiling orders
+            // 'ceiling': this.priceToPrecision (symbol, price), // required for ceiling orders, excluded for non-ceiling orders
+            // 'limit': this.priceToPrecision (symbol, price), // required for limit orders, excluded for market orders
+            // 'timeInForce': 'GOOD_TIL_CANCELLED', // IMMEDIATE_OR_CANCEL, FILL_OR_KILL, POST_ONLY_GOOD_TIL_CANCELLED
+            // 'useAwards': false, // optional
+        };
+        const isCeilingLimit = (uppercaseType === 'CEILING_LIMIT');
+        const isCeilingMarket = (uppercaseType === 'CEILING_MARKET');
+        const isCeilingOrder = isCeilingLimit || isCeilingMarket;
+        if (isCeilingOrder) {
+            request['ceiling'] = this.priceToPrecision (symbol, price);
+            // bittrex only accepts IMMEDIATE_OR_CANCEL or FILL_OR_KILL for ceiling orders
+            request['timeInForce'] = 'IMMEDIATE_OR_CANCEL';
+        } else {
+            request['quantity'] = this.amountToPrecision (symbol, amount);
+            if (uppercaseType === 'LIMIT') {
+                request['limit'] = this.priceToPrecision (symbol, price);
+                request['timeInForce'] = 'GOOD_TIL_CANCELLED';
+            } else {
+                // bittrex does not allow GOOD_TIL_CANCELLED for market orders
+                request['timeInForce'] = 'IMMEDIATE_OR_CANCEL';
+            }
+        }
+        const response = await this.v3PostOrders (this.extend (request, params));
+        //
+        //     {
+        //         id: 'f03d5e98-b5ac-48fb-8647-dd4db828a297',
+        //         marketSymbol: 'BTC-USDT',
+        //         direction: 'SELL',
+        //         type: 'LIMIT',
+        //         quantity: '0.01',
+        //         limit: '6000',
+        //         timeInForce: 'GOOD_TIL_CANCELLED',
+        //         fillQuantity: '0.00000000',
+        //         commission: '0.00000000',
+        //         proceeds: '0.00000000',
+        //         status: 'OPEN',
+        //         createdAt: '2020-03-18T02:37:33.42Z',
+        //         updatedAt: '2020-03-18T02:37:33.42Z'
+        //       }
+        //
+        return this.parseOrderV3 (response, market);
+    }
+
+    async createOrderV1 (symbol, type, side, amount, price = undefined, params = {}) {
         if (type !== 'limit') {
             throw new ExchangeError (this.id + ' allows limit orders only');
         }
@@ -23917,7 +24943,10 @@ module.exports = class bittrex extends Exchange {
         //         }
         //     }
         //
-        return this.extend (this.parseOrder (response), {
+        const result = this.safeValue (response, 'result', {});
+        return this.extend (this.parseOrder (result), {
+            'id': id,
+            'info': response,
             'status': 'canceled',
         });
     }
@@ -24185,6 +25214,7 @@ module.exports = class bittrex extends Exchange {
         }
         return {
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -24203,6 +25233,7 @@ module.exports = class bittrex extends Exchange {
                 'currency': feeCurrency,
             },
             'info': order,
+            'trades': undefined,
         };
     }
 
@@ -24327,6 +25358,7 @@ module.exports = class bittrex extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -24341,6 +25373,7 @@ module.exports = class bittrex extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
@@ -24383,6 +25416,7 @@ module.exports = class bittrex extends Exchange {
             'datetime': this.iso8601 (timestamp),
             'fee': this.safeValue (order, 'fee'),
             'info': order,
+            'takerOrMaker': undefined,
         };
     }
 
@@ -24530,10 +25564,16 @@ module.exports = class bittrex extends Exchange {
             }
         } else if (api === 'v3') {
             url += path;
-            if (Object.keys (params).length) {
-                url += '?' + this.rawencode (params);
+            let hashString = '';
+            if (method === 'POST') {
+                body = this.json (params);
+                hashString = body;
+            } else {
+                if (Object.keys (params).length) {
+                    url += '?' + this.rawencode (params);
+                }
             }
-            const contentHash = this.hash (this.encode (''), 'sha512', 'hex');
+            const contentHash = this.hash (this.encode (hashString), 'sha512', 'hex');
             const timestamp = this.milliseconds ().toString ();
             let auth = timestamp + url + method + contentHash;
             const subaccountId = this.safeValue (this.options, 'subaccountId');
@@ -24550,6 +25590,9 @@ module.exports = class bittrex extends Exchange {
             if (subaccountId !== undefined) {
                 headers['Api-Subaccount-Id'] = subaccountId;
             }
+            if (method === 'POST') {
+                headers['Content-Type'] = 'application/json';
+            }
         } else {
             this.checkRequiredCredentials ();
             url += api + '/';
@@ -24578,8 +25621,16 @@ module.exports = class bittrex extends Exchange {
         //     { success: false, message: "message" }
         //
         if (body[0] === '{') {
+            const feedback = this.id + ' ' + body;
             let success = this.safeValue (response, 'success');
             if (success === undefined) {
+                const code = this.safeString (response, 'code');
+                if (code !== undefined) {
+                    this.throwExactlyMatchedException (this.exceptions['exact'], code, feedback);
+                    if (code !== undefined) {
+                        this.throwBroadlyMatchedException (this.exceptions['broad'], code, feedback);
+                    }
+                }
                 // throw new ExchangeError (this.id + ' malformed response ' + this.json (response));
                 return;
             }
@@ -24589,7 +25640,6 @@ module.exports = class bittrex extends Exchange {
             }
             if (!success) {
                 const message = this.safeString (response, 'message');
-                const feedback = this.id + ' ' + body;
                 if (message === 'APIKEY_INVALID') {
                     if (this.options['hasAlreadyAuthenticatedSuccessfully']) {
                         throw new DDoSProtection (feedback);
@@ -24653,7 +25703,7 @@ module.exports = class bittrex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],45:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],45:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -24816,6 +25866,7 @@ module.exports = class bitz extends Exchange {
                 // https://github.com/ccxt/ccxt/issues/3881
                 // https://support.bit-z.pro/hc/en-us/articles/360007500654-BOX-BOX-Token-
                 'BOX': 'BOX Token',
+                'LEO': 'LeoCoin',
                 'XRB': 'NANO',
                 'PXC': 'Pixiecoin',
                 'VTC': 'VoteCoin',
@@ -25305,7 +26356,7 @@ module.exports = class bitz extends Exchange {
             }
         } else {
             if (since !== undefined) {
-                throw new ExchangeError (this.id + ' fetchOHLCV requires a limit argument if the since argument is specified');
+                throw new ArgumentsRequired (this.id + ' fetchOHLCV requires a limit argument if the since argument is specified');
             }
         }
         const response = await this.marketGetKline (this.extend (request, params));
@@ -25409,6 +26460,7 @@ module.exports = class bitz extends Exchange {
         const status = this.parseOrderStatus (this.safeString (order, 'status'));
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -25424,6 +26476,7 @@ module.exports = class bitz extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -25866,7 +26919,7 @@ module.exports = class bitz extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],46:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],46:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -26101,7 +27154,7 @@ module.exports = class bl3p extends Exchange {
     }
 };
 
-},{"./base/Exchange":7}],47:[function(require,module,exports){
+},{"./base/Exchange":8}],47:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -26131,6 +27184,7 @@ module.exports = class bleutrade extends Exchange {
                 'fetchTicker': true,
                 'fetchOrders': false,
                 'fetchClosedOrders': true,
+                'fetchOpenOrders': true,
                 'fetchWithdrawals': true,
                 'fetchOrderTrades': false,
                 'fetchLedger': true,
@@ -26176,6 +27230,9 @@ module.exports = class bleutrade extends Exchange {
                     ],
                 },
                 'v3Private': {
+                    'get': [
+                        'statement',
+                    ],
                     'post': [
                         'getbalance',
                         'getbalances',
@@ -26266,6 +27323,7 @@ module.exports = class bleutrade extends Exchange {
                 'fee': this.safeFloat (item, 'WithdrawTxFee'),
                 'precision': this.safeFloat (item, 'DecimalPlaces'),
                 'info': item,
+                'limits': this.limits,
             };
         }
         return result;
@@ -26291,8 +27349,8 @@ module.exports = class bleutrade extends Exchange {
             //     MarketCurrencyLong: 'Litecoin',
             //     BaseCurrencyLong: 'Tether' }
             const id = this.safeString (market, 'MarketName');
-            const baseId = this.safeString (market, 'MarketCurrency');
-            const quoteId = this.safeString (market, 'BaseCurrency');
+            const baseId = this.safeString (market, 'MarketAsset');
+            const quoteId = this.safeString (market, 'BaseAsset');
             const base = this.safeCurrencyCode (baseId);
             const quote = this.safeCurrencyCode (quoteId);
             const symbol = base + '/' + quote;
@@ -26783,6 +27841,7 @@ module.exports = class bleutrade extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -26797,6 +27856,7 @@ module.exports = class bleutrade extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': undefined,
+            'trades': undefined,
         };
     }
 
@@ -26935,7 +27995,7 @@ module.exports = class bleutrade extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],48:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],48:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -27390,6 +28450,7 @@ module.exports = class braziliex extends Exchange {
         const status = (filledPercentage === 1.0) ? 'closed' : 'open';
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -27405,6 +28466,7 @@ module.exports = class braziliex extends Exchange {
             'trades': undefined,
             'fee': fee,
             'info': info,
+            'average': undefined,
         };
     }
 
@@ -27528,7 +28590,7 @@ module.exports = class braziliex extends Exchange {
             headers = {
                 'Content-type': 'application/x-www-form-urlencoded',
                 'Key': this.apiKey,
-                'Sign': this.decode (signature),
+                'Sign': signature,
             };
         }
         return { 'url': url, 'method': method, 'body': body, 'headers': headers };
@@ -27553,7 +28615,7 @@ module.exports = class braziliex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],49:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],49:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -27707,6 +28769,8 @@ module.exports = class btcalpha extends Exchange {
                     },
                 },
                 'info': market,
+                'baseId': undefined,
+                'quoteId': undefined,
             });
         }
         return result;
@@ -27871,6 +28935,7 @@ module.exports = class btcalpha extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'status': status,
@@ -27885,6 +28950,8 @@ module.exports = class btcalpha extends Exchange {
             'trades': trades,
             'fee': undefined,
             'info': order,
+            'lastTradeTimestamp': undefined,
+            'average': undefined,
         };
     }
 
@@ -28026,7 +29093,7 @@ module.exports = class btcalpha extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],50:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],50:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -28271,7 +29338,16 @@ module.exports = class btcbox extends Exchange {
 
     parseOrder (order, market = undefined) {
         //
-        // {"id":11,"datetime":"2014-10-21 10:47:20","type":"sell","price":42000,"amount_original":1.2,"amount_outstanding":1.2,"status":"closed","trades":[]}
+        //     {
+        //         "id":11,
+        //         "datetime":"2014-10-21 10:47:20",
+        //         "type":"sell",
+        //         "price":42000,
+        //         "amount_original":1.2,
+        //         "amount_outstanding":1.2,
+        //         "status":"closed",
+        //         "trades":[]
+        //     }
         //
         const id = this.safeString (order, 'id');
         const datetimeString = this.safeString (order, 'datetime');
@@ -28310,6 +29386,7 @@ module.exports = class btcbox extends Exchange {
         const side = this.safeString (order, 'type');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -28325,6 +29402,7 @@ module.exports = class btcbox extends Exchange {
             'trades': trades,
             'fee': undefined,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -28434,383 +29512,14 @@ module.exports = class btcbox extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],51:[function(require,module,exports){
-'use strict';
-
-//  ---------------------------------------------------------------------------
-
-const Exchange = require ('./base/Exchange');
-
-//  ---------------------------------------------------------------------------
-
-module.exports = class btcchina extends Exchange {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'btcchina',
-            'name': 'BTCChina',
-            'countries': [ 'CN' ],
-            'rateLimit': 1500,
-            'version': 'v1',
-            'has': {
-                'CORS': false,
-            },
-            'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766368-465b3286-5ed6-11e7-9a11-0f6467e1d82b.jpg',
-                'api': {
-                    'plus': 'https://plus-api.btcchina.com/market',
-                    'public': 'https://data.btcchina.com/data',
-                    'private': 'https://api.btcchina.com/api_trade_v1.php',
-                },
-                'www': 'https://www.btcchina.com',
-                'doc': 'https://www.btcchina.com/apidocs',
-            },
-            'api': {
-                'plus': {
-                    'get': [
-                        'orderbook',
-                        'ticker',
-                        'trade',
-                    ],
-                },
-                'public': {
-                    'get': [
-                        'historydata',
-                        'orderbook',
-                        'ticker',
-                        'trades',
-                    ],
-                },
-                'private': {
-                    'post': [
-                        'BuyIcebergOrder',
-                        'BuyOrder',
-                        'BuyOrder2',
-                        'BuyStopOrder',
-                        'CancelIcebergOrder',
-                        'CancelOrder',
-                        'CancelStopOrder',
-                        'GetAccountInfo',
-                        'getArchivedOrder',
-                        'getArchivedOrders',
-                        'GetDeposits',
-                        'GetIcebergOrder',
-                        'GetIcebergOrders',
-                        'GetMarketDepth',
-                        'GetMarketDepth2',
-                        'GetOrder',
-                        'GetOrders',
-                        'GetStopOrder',
-                        'GetStopOrders',
-                        'GetTransactions',
-                        'GetWithdrawal',
-                        'GetWithdrawals',
-                        'RequestWithdrawal',
-                        'SellIcebergOrder',
-                        'SellOrder',
-                        'SellOrder2',
-                        'SellStopOrder',
-                    ],
-                },
-            },
-            'markets': {
-                'BTC/CNY': { 'id': 'btccny', 'symbol': 'BTC/CNY', 'base': 'BTC', 'quote': 'CNY', 'api': 'public', 'plus': false },
-                'LTC/CNY': { 'id': 'ltccny', 'symbol': 'LTC/CNY', 'base': 'LTC', 'quote': 'CNY', 'api': 'public', 'plus': false },
-                'LTC/BTC': { 'id': 'ltcbtc', 'symbol': 'LTC/BTC', 'base': 'LTC', 'quote': 'BTC', 'api': 'public', 'plus': false },
-                'BCH/CNY': { 'id': 'bcccny', 'symbol': 'BCH/CNY', 'base': 'BCH', 'quote': 'CNY', 'api': 'plus', 'plus': true },
-                'ETH/CNY': { 'id': 'ethcny', 'symbol': 'ETH/CNY', 'base': 'ETH', 'quote': 'CNY', 'api': 'plus', 'plus': true },
-            },
-        });
-    }
-
-    async fetchMarkets (params = {}) {
-        const request = {
-            'market': 'all',
-        };
-        const markets = await this.publicGetTicker (this.extend (request, params));
-        const result = [];
-        const keys = Object.keys (markets);
-        for (let i = 0; i < keys.length; i++) {
-            const key = keys[i];
-            const market = markets[key];
-            const parts = key.split ('_');
-            const id = parts[1];
-            const baseId = id.slice (0, 3);
-            const quoteId = id.slice (3, 6);
-            let base = baseId.toUpperCase ();
-            let quote = quoteId.toUpperCase ();
-            base = this.safeCurrencyCode (base);
-            quote = this.safeCurrencyCode (quote);
-            const symbol = base + '/' + quote;
-            result.push ({
-                'id': id,
-                'symbol': symbol,
-                'base': base,
-                'quote': quote,
-                'baseId': baseId,
-                'quoteId': quoteId,
-                'info': market,
-            });
-        }
-        return result;
-    }
-
-    async fetchBalance (params = {}) {
-        await this.loadMarkets ();
-        const response = await this.privatePostGetAccountInfo (params);
-        const balances = this.safeValue (response, 'result');
-        const result = { 'info': balances };
-        const codes = Object.keys (this.currencies);
-        for (let i = 0; i < codes.length; i++) {
-            const code = codes[i];
-            const currency = this.currency (code);
-            const account = this.account ();
-            const currencyId = currency['id'];
-            if (currencyId in balances['balance']) {
-                account['total'] = parseFloat (balances['balance'][currencyId]['amount']);
-            }
-            if (currencyId in balances['frozen']) {
-                account['used'] = parseFloat (balances['frozen'][currencyId]['amount']);
-            }
-            result[code] = account;
-        }
-        return this.parseBalance (result);
-    }
-
-    createMarketRequest (market) {
-        const request = {};
-        const field = (market['plus']) ? 'symbol' : 'market';
-        request[field] = market['id'];
-        return request;
-    }
-
-    async fetchOrderBook (symbol, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['api'] + 'GetOrderbook';
-        const request = this.createMarketRequest (market);
-        const response = await this[method] (this.extend (request, params));
-        const timestamp = this.safeTimestamp (response, 'date');
-        return this.parseOrderBook (response, timestamp);
-    }
-
-    parseTicker (ticker, market) {
-        const timestamp = this.safeTimestamp (ticker, 'date');
-        const last = this.safeFloat (ticker, 'last');
-        return {
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'high': this.safeFloat (ticker, 'high'),
-            'low': this.safeFloat (ticker, 'low'),
-            'bid': this.safeFloat (ticker, 'buy'),
-            'ask': this.safeFloat (ticker, 'sell'),
-            'vwap': this.safeFloat (ticker, 'vwap'),
-            'open': this.safeFloat (ticker, 'open'),
-            'close': last,
-            'last': last,
-            'previousClose': undefined,
-            'change': undefined,
-            'percentage': undefined,
-            'average': undefined,
-            'baseVolume': this.safeFloat (ticker, 'vol'),
-            'quoteVolume': undefined,
-            'info': ticker,
-        };
-    }
-
-    parseTickerPlus (ticker, market) {
-        const timestamp = this.safeInteger (ticker, 'Timestamp');
-        let symbol = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        return {
-            'symbol': symbol,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'high': this.safeFloat (ticker, 'High'),
-            'low': this.safeFloat (ticker, 'Low'),
-            'bid': this.safeFloat (ticker, 'BidPrice'),
-            'ask': this.safeFloat (ticker, 'AskPrice'),
-            'vwap': undefined,
-            'open': this.safeFloat (ticker, 'Open'),
-            'last': this.safeFloat (ticker, 'Last'),
-            'change': undefined,
-            'percentage': undefined,
-            'average': undefined,
-            'baseVolume': this.safeFloat (ticker, 'Volume24H'),
-            'quoteVolume': undefined,
-            'info': ticker,
-        };
-    }
-
-    async fetchTicker (symbol, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['api'] + 'GetTicker';
-        const request = this.createMarketRequest (market);
-        const response = await this[method] (this.extend (request, params));
-        const ticker = this.safeValue (response, 'ticker');
-        if (market['plus']) {
-            return this.parseTickerPlus (ticker, market);
-        }
-        return this.parseTicker (ticker, market);
-    }
-
-    parseTrade (trade, market) {
-        const timestamp = this.safeTimestamp (trade, 'date');
-        const price = this.safeFloat (trade, 'price');
-        const amount = this.safeFloat (trade, 'amount');
-        let cost = undefined;
-        if (amount !== undefined) {
-            if (price !== undefined) {
-                cost = amount * price;
-            }
-        }
-        const id = this.safeString (trade, 'tid');
-        return {
-            'id': id,
-            'info': trade,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': market['symbol'],
-            'type': undefined,
-            'side': undefined,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-        };
-    }
-
-    parseTradePlus (trade, market) {
-        const timestamp = this.parse8601 (this.safeString (trade, 'timestamp'));
-        const price = this.safeFloat (trade, 'price');
-        const amount = this.safeFloat (trade, 'size');
-        let cost = undefined;
-        if (amount !== undefined) {
-            if (price !== undefined) {
-                cost = amount * price;
-            }
-        }
-        const side = this.safeStringLower (trade, 'side');
-        return {
-            'id': undefined,
-            'info': trade,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': market['symbol'],
-            'type': undefined,
-            'side': side,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-        };
-    }
-
-    parseTradesPlus (trades, market = undefined) {
-        const result = [];
-        for (let i = 0; i < trades.length; i++) {
-            result.push (this.parseTradePlus (trades[i], market));
-        }
-        return result;
-    }
-
-    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        let method = market['api'] + 'GetTrade';
-        const request = this.createMarketRequest (market);
-        if (market['plus']) {
-            const now = this.milliseconds ();
-            request['start_time'] = now - 86400000;
-            request['end_time'] = now;
-        } else {
-            method += 's'; // trades vs trade
-        }
-        const response = await this[method] (this.extend (request, params));
-        if (market['plus']) {
-            return this.parseTradesPlus (response['trades'], market);
-        }
-        return this.parseTrades (response, market, since, limit);
-    }
-
-    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = 'privatePost' + this.capitalize (side) + 'Order2';
-        const request = {};
-        const id = market['id'].toUpperCase ();
-        if (type === 'market') {
-            request['params'] = [ undefined, amount, id ];
-        } else {
-            request['params'] = [ price, amount, id ];
-        }
-        const response = await this[method] (this.extend (request, params));
-        const orderId = this.safeString (response, 'id');
-        return {
-            'info': response,
-            'id': orderId,
-        };
-    }
-
-    async cancelOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = params['market']; // TODO fixme
-        const request = {
-            'params': [ id, market ],
-        };
-        return await this.privatePostCancelOrder (this.extend (request, params));
-    }
-
-    nonce () {
-        return this.microseconds ();
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = this.urls['api'][api] + '/' + path;
-        if (api === 'private') {
-            this.checkRequiredCredentials ();
-            let p = [];
-            if ('params' in params) {
-                p = params['params'];
-            }
-            const nonce = this.nonce ();
-            const request = {
-                'method': path,
-                'id': nonce,
-                'params': p,
-            };
-            p = p.join (',');
-            body = this.json (request);
-            const query = [
-                'tonce=' + nonce,
-                'accesskey=' + this.apiKey,
-                'requestmethod=' + method.toLowerCase (),
-                'id=' + nonce,
-                'method=' + path,
-                'params=' + p,
-            ].join ('&');
-            const signature = this.hmac (this.encode (query), this.encode (this.secret), 'sha1');
-            const auth = this.encode (this.apiKey + ':' + signature);
-            headers = {
-                'Authorization': 'Basic ' + this.stringToBase64 (auth),
-                'Json-Rpc-Tonce': nonce,
-            };
-        } else {
-            if (Object.keys (params).length) {
-                url += '?' + this.urlencode (params);
-            }
-        }
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-};
-
-},{"./base/Exchange":7}],52:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],51:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
 const { ExchangeError, OrderNotFound, ArgumentsRequired, InvalidOrder, DDoSProtection } = require ('./base/errors');
+const { ROUND } = require ('./base/functions/number');
 
 //  ---------------------------------------------------------------------------
 
@@ -29274,8 +29983,8 @@ module.exports = class btcmarkets extends Exchange {
         });
         request['currency'] = market['quote'];
         request['instrument'] = market['base'];
-        request['price'] = parseInt (price * multiplier);
-        request['volume'] = parseInt (amount * multiplier);
+        request['price'] = parseInt (this.decimalToPrecision (price * multiplier, ROUND, 0));
+        request['volume'] = parseInt (this.decimalToPrecision (amount * multiplier, ROUND, 0));
         request['orderSide'] = orderSide;
         request['ordertype'] = this.capitalize (type);
         request['clientRequestId'] = this.nonce ().toString ();
@@ -29371,6 +30080,7 @@ module.exports = class btcmarkets extends Exchange {
                 'currency': feeCurrencyCode,
                 'cost': feeCost,
             },
+            'takerOrMaker': undefined,
         };
     }
 
@@ -29418,9 +30128,11 @@ module.exports = class btcmarkets extends Exchange {
             lastTradeTimestamp = trades[numTrades - 1]['timestamp'];
         }
         const id = this.safeString (order, 'id');
+        const clientOrderId = this.safeString (order, 'clientRequestId');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -29560,7 +30272,7 @@ module.exports = class btcmarkets extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],53:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],52:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -29633,7 +30345,7 @@ module.exports = class btctradeim extends coinegg {
     }
 };
 
-},{"./base/errors":9,"./coinegg.js":66}],54:[function(require,module,exports){
+},{"./base/errors":10,"./coinegg.js":65}],53:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -29956,6 +30668,7 @@ module.exports = class btctradeua extends Exchange {
         }
         return {
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'timestamp': timestamp, // until they fix their timestamp
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -29969,6 +30682,9 @@ module.exports = class btctradeua extends Exchange {
             'remaining': this.safeFloat (order, 'amnt_trade'),
             'trades': undefined,
             'info': order,
+            'cost': undefined,
+            'average': undefined,
+            'fee': undefined,
         };
     }
 
@@ -30015,7 +30731,7 @@ module.exports = class btctradeua extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],55:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],54:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -30338,13 +31054,13 @@ module.exports = class btcturk extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],56:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],55:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { AddressPending, AuthenticationError, ExchangeError, NotSupported, PermissionDenied } = require ('./base/errors');
+const { AddressPending, AuthenticationError, ExchangeError, NotSupported, PermissionDenied, ArgumentsRequired } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -30904,6 +31620,7 @@ module.exports = class buda extends Exchange {
         };
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -30919,6 +31636,7 @@ module.exports = class buda extends Exchange {
             'trades': undefined,
             'fee': fee,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -31031,7 +31749,7 @@ module.exports = class buda extends Exchange {
     async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
         await this.loadMarkets ();
         if (code === undefined) {
-            throw new ExchangeError (this.id + ': fetchDeposits() requires a currency code argument');
+            throw new ArgumentsRequired (this.id + ': fetchDeposits() requires a currency code argument');
         }
         const currency = this.currency (code);
         const request = {
@@ -31046,7 +31764,7 @@ module.exports = class buda extends Exchange {
     async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
         await this.loadMarkets ();
         if (code === undefined) {
-            throw new ExchangeError (this.id + ': fetchDeposits() requires a currency code argument');
+            throw new ArgumentsRequired (this.id + ': fetchDeposits() requires a currency code argument');
         }
         const currency = this.currency (code);
         const request = {
@@ -31126,7 +31844,7 @@ module.exports = class buda extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],57:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],56:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -31795,6 +32513,7 @@ module.exports = class bw extends Exchange {
             'status': 'open',
             'fee': undefined,
             'trades': undefined,
+            'clientOrderId': undefined,
         };
     }
 
@@ -31864,6 +32583,7 @@ module.exports = class bw extends Exchange {
         return {
             'info': order,
             'id': this.safeString (order, 'entrustId'),
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -32311,7 +33031,1934 @@ module.exports = class bw extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],58:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],57:[function(require,module,exports){
+'use strict';
+
+//  ---------------------------------------------------------------------------
+
+const Exchange = require ('./base/Exchange');
+const { TICK_SIZE } = require ('./base/functions/number');
+const { AuthenticationError, ExchangeError, ArgumentsRequired, PermissionDenied, InvalidOrder, OrderNotFound, InsufficientFunds, BadRequest, RateLimitExceeded, InvalidNonce } = require ('./base/errors');
+
+//  ---------------------------------------------------------------------------
+
+module.exports = class bybit extends Exchange {
+    describe () {
+        return this.deepExtend (super.describe (), {
+            'id': 'bybit',
+            'name': 'Bybit',
+            'countries': [ 'VG' ], // British Virgin Islands
+            'version': 'v2',
+            'userAgent': undefined,
+            'rateLimit': 100,
+            'has': {
+                'CORS': true,
+                'fetchMarkets': true,
+                'fetchBalance': true,
+                'fetchOHLCV': true,
+                'editOrder': true,
+                'fetchOrder': true,
+                'fetchOrders': true,
+                'fetchOpenOrders': true,
+                'fetchClosedOrders': true,
+                'fetchMyTrades': true,
+                'fetchTicker': true,
+                'fetchTickers': true,
+                'fetchOrderTrades': true,
+                'createOrder': true,
+                'cancelOrder': true,
+                'cancelAllOrders': true,
+                'fetchTime': true,
+                'fetchWithdrawals': true,
+                'fetchDeposits': false,
+                'fetchTransactions': false,
+                'fetchLedger': true,
+            },
+            'timeframes': {
+                '1m': '1',
+                '3m': '3',
+                '5m': '5',
+                '15m': '15',
+                '30m': '30',
+                '1h': '60',
+                '2h': '120',
+                '3h': '180',
+                '6h': '360',
+                '12h': '720',
+                '1d': 'D',
+                '1w': 'W',
+                '1M': 'M',
+                '1y': 'Y',
+            },
+            'urls': {
+                'test': 'https://api-testnet.bybit.com',
+                'logo': 'https://user-images.githubusercontent.com/51840849/76547799-daff5b80-649e-11ea-87fb-3be9bac08954.jpg',
+                'api': 'https://api.bybit.com',
+                'www': 'https://www.bybit.com/',
+                'doc': [
+                    'https://bybit-exchange.github.io/docs/inverse/',
+                    'https://github.com/bybit-exchange',
+                ],
+                'fees': 'https://help.bybit.com/hc/en-us/articles/360039261154',
+                'referral': 'https://www.bybit.com/app/register?ref=X7Prm',
+            },
+            'api': {
+                'public': {
+                    'get': [
+                        'orderBook/L2',
+                        'kline/list',
+                        'tickers',
+                        'trading-records',
+                        'symbols',
+                        'time',
+                        'announcement',
+                    ],
+                },
+                'private': {
+                    'get': [
+                        'order',
+                        'stop-order',
+                        'position/list',
+                        'wallet/balance',
+                        'execution/list',
+                    ],
+                    'post': [
+                        'order/create',
+                        'order/cancel',
+                        'order/cancelAll',
+                        'stop-order/cancelAll',
+                    ],
+                },
+                'openapi': {
+                    'get': [
+                        'order/list',
+                        'stop-order/list',
+                        'wallet/risk-limit/list',
+                        'wallet/risk-limit',
+                        'funding/prev-funding-rate',
+                        'funding/prev-funding',
+                        'funding/predicted-funding',
+                        'api-key',
+                        'wallet/fund/records',
+                        'wallet/withdraw/list',
+                    ],
+                    'post': [
+                        'order/replace',
+                        'stop-order/create',
+                        'stop-order/cancel',
+                        'stop-order/replace',
+                        'position/trading-stop',
+                    ],
+                },
+                'position': {
+                    'post': [
+                        'change-position-margin',
+                    ],
+                },
+                'user': {
+                    'get': [
+                        'leverage',
+                    ],
+                    'post': [
+                        'leverage/save',
+                    ],
+                },
+            },
+            'httpExceptions': {
+                '403': RateLimitExceeded, // Forbidden -- You request too many times
+            },
+            'exceptions': {
+                'exact': {
+                    '10001': BadRequest, // parameter error
+                    '10002': InvalidNonce, // request expired, check your timestamp and recv_window
+                    '10003': AuthenticationError, // Invalid apikey
+                    '10004': AuthenticationError, // invalid sign
+                    '10005': PermissionDenied, // permission denied for current apikey
+                    '10006': RateLimitExceeded, // too many requests
+                    '10007': AuthenticationError, // api_key not found in your request parameters
+                    '10010': PermissionDenied, // request ip mismatch
+                    '10017': BadRequest, // request path not found or request method is invalid
+                    '20001': OrderNotFound, // Order not exists
+                    '20003': InvalidOrder, // missing parameter side
+                    '20004': InvalidOrder, // invalid parameter side
+                    '20005': InvalidOrder, // missing parameter symbol
+                    '20006': InvalidOrder, // invalid parameter symbol
+                    '20007': InvalidOrder, // missing parameter order_type
+                    '20008': InvalidOrder, // invalid parameter order_type
+                    '20009': InvalidOrder, // missing parameter qty
+                    '20010': InvalidOrder, // qty must be greater than 0
+                    '20011': InvalidOrder, // qty must be an integer
+                    '20012': InvalidOrder, // qty must be greater than zero and less than 1 million
+                    '20013': InvalidOrder, // missing parameter price
+                    '20014': InvalidOrder, // price must be greater than 0
+                    '20015': InvalidOrder, // missing parameter time_in_force
+                    '20016': InvalidOrder, // invalid value for parameter time_in_force
+                    '20017': InvalidOrder, // missing parameter order_id
+                    '20018': InvalidOrder, // invalid date format
+                    '20019': InvalidOrder, // missing parameter stop_px
+                    '20020': InvalidOrder, // missing parameter base_price
+                    '20021': InvalidOrder, // missing parameter stop_order_id
+                    '20022': BadRequest, // missing parameter leverage
+                    '20023': BadRequest, // leverage must be a number
+                    '20031': BadRequest, // leverage must be greater than zero
+                    '20070': BadRequest, // missing parameter margin
+                    '20071': BadRequest, // margin must be greater than zero
+                    '20084': BadRequest, // order_id or order_link_id is required
+                    '30001': BadRequest, // order_link_id is repeated
+                    '30003': InvalidOrder, // qty must be more than the minimum allowed
+                    '30004': InvalidOrder, // qty must be less than the maximum allowed
+                    '30005': InvalidOrder, // price exceeds maximum allowed
+                    '30007': InvalidOrder, // price exceeds minimum allowed
+                    '30008': InvalidOrder, // invalid order_type
+                    '30009': ExchangeError, // no position found
+                    '30010': InsufficientFunds, // insufficient wallet balance
+                    '30011': PermissionDenied, // operation not allowed as position is undergoing liquidation
+                    '30012': PermissionDenied, // operation not allowed as position is undergoing ADL
+                    '30013': PermissionDenied, // position is in liq or adl status
+                    '30014': InvalidOrder, // invalid closing order, qty should not greater than size
+                    '30015': InvalidOrder, // invalid closing order, side should be opposite
+                    '30016': ExchangeError, // TS and SL must be cancelled first while closing position
+                    '30017': InvalidOrder, // estimated fill price cannot be lower than current Buy liq_price
+                    '30018': InvalidOrder, // estimated fill price cannot be higher than current Sell liq_price
+                    '30019': InvalidOrder, // cannot attach TP/SL params for non-zero position when placing non-opening position order
+                    '30020': InvalidOrder, // position already has TP/SL params
+                    '30021': InvalidOrder, // cannot afford estimated position_margin
+                    '30022': InvalidOrder, // estimated buy liq_price cannot be higher than current mark_price
+                    '30023': InvalidOrder, // estimated sell liq_price cannot be lower than current mark_price
+                    '30024': InvalidOrder, // cannot set TP/SL/TS for zero-position
+                    '30025': InvalidOrder, // trigger price should bigger than 10% of last price
+                    '30026': InvalidOrder, // price too high
+                    '30027': InvalidOrder, // price set for Take profit should be higher than Last Traded Price
+                    '30028': InvalidOrder, // price set for Stop loss should be between Liquidation price and Last Traded Price
+                    '30029': InvalidOrder, // price set for Stop loss should be between Last Traded Price and Liquidation price
+                    '30030': InvalidOrder, // price set for Take profit should be lower than Last Traded Price
+                    '30031': InsufficientFunds, // insufficient available balance for order cost
+                    '30032': InvalidOrder, // order has been filled or cancelled
+                    '30033': RateLimitExceeded, // The number of stop orders exceeds maximum limit allowed
+                    '30034': OrderNotFound, // no order found
+                    '30035': RateLimitExceeded, // too fast to cancel
+                    '30036': ExchangeError, // the expected position value after order execution exceeds the current risk limit
+                    '30037': InvalidOrder, // order already cancelled
+                    '30041': ExchangeError, // no position found
+                    '30042': InsufficientFunds, // insufficient wallet balance
+                    '30043': PermissionDenied, // operation not allowed as position is undergoing liquidation
+                    '30044': PermissionDenied, // operation not allowed as position is undergoing AD
+                    '30045': PermissionDenied, // operation not allowed as position is not normal status
+                    '30049': InsufficientFunds, // insufficient available balance
+                    '30050': ExchangeError, // any adjustments made will trigger immediate liquidation
+                    '30051': ExchangeError, // due to risk limit, cannot adjust leverage
+                    '30052': ExchangeError, // leverage can not less than 1
+                    '30054': ExchangeError, // position margin is invalid
+                    '30057': ExchangeError, // requested quantity of contracts exceeds risk limit
+                    '30063': ExchangeError, // reduce-only rule not satisfied
+                    '30067': InsufficientFunds, // insufficient available balance
+                    '30068': ExchangeError, // exit value must be positive
+                    '34026': ExchangeError, // the limit is no change
+                },
+                'broad': {
+                    'unknown orderInfo': OrderNotFound, // {"ret_code":-1,"ret_msg":"unknown orderInfo","ext_code":"","ext_info":"","result":null,"time_now":"1584030414.005545","rate_limit_status":99,"rate_limit_reset_ms":1584030414003,"rate_limit":100}
+                },
+            },
+            'precisionMode': TICK_SIZE,
+            'options': {
+                'code': 'BTC',
+                'fetchBalance': {
+                    'code': 'BTC',
+                },
+                'cancelAllOrders': {
+                    'method': 'privatePostOrderCancelAll', // privatePostStopOrderCancelAll
+                },
+                'recvWindow': 5 * 1000, // 5 sec default
+                'timeDifference': 0, // the difference between system clock and Binance clock
+                'adjustForTimeDifference': false, // controls the adjustment logic upon instantiation
+            },
+            'fees': {
+                'trading': {
+                    'tierBased': false,
+                    'percentage': true,
+                    'taker': 0.00075,
+                    'maker': -0.00025,
+                },
+                'funding': {
+                    'tierBased': false,
+                    'percentage': false,
+                    'withdraw': {},
+                    'deposit': {},
+                },
+            },
+        });
+    }
+
+    nonce () {
+        return this.milliseconds () - this.options['timeDifference'];
+    }
+
+    async loadTimeDifference () {
+        const serverTime = await this.fetchTime ();
+        const after = this.milliseconds ();
+        this.options['timeDifference'] = after - serverTime;
+        return this.options['timeDifference'];
+    }
+
+    async fetchTime (params = {}) {
+        const response = await this.publicGetTime (params);
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: {},
+        //         time_now: '1583933682.448826'
+        //     }
+        //
+        return this.safeTimestamp (response, 'time_now');
+    }
+
+    async fetchMarkets (params = {}) {
+        if (this.options['adjustForTimeDifference']) {
+            await this.loadTimeDifference ();
+        }
+        const response = await this.publicGetSymbols (params);
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: [
+        //             {
+        //                 name: 'BTCUSD',
+        //                 base_currency: 'BTC',
+        //                 quote_currency: 'USD',
+        //                 price_scale: 2,
+        //                 taker_fee: '0.00075',
+        //                 maker_fee: '-0.00025',
+        //                 leverage_filter: { min_leverage: 1, max_leverage: 100, leverage_step: '0.01' },
+        //                 price_filter: { min_price: '0.5', max_price: '999999.5', tick_size: '0.5' },
+        //                 lot_size_filter: { max_trading_qty: 1000000, min_trading_qty: 1, qty_step: 1 }
+        //             },
+        //         ],
+        //         time_now: '1583930495.454196'
+        //     }
+        //
+        const markets = this.safeValue (response, 'result', []);
+        const result = [];
+        for (let i = 0; i < markets.length; i++) {
+            const market = markets[i];
+            const id = this.safeString (market, 'name');
+            const baseId = this.safeString (market, 'base_currency');
+            const quoteId = this.safeString (market, 'quote_currency');
+            const base = this.safeCurrencyCode (baseId);
+            const quote = this.safeCurrencyCode (quoteId);
+            const symbol = base + '/' + quote;
+            const lotSizeFilter = this.safeValue (market, 'lot_size_filter', {});
+            const priceFilter = this.safeValue (market, 'price_filter', {});
+            const precision = {
+                'amount': this.safeFloat (lotSizeFilter, 'qty_step'),
+                'price': this.safeFloat (priceFilter, 'tick_size'),
+            };
+            result.push ({
+                'id': id,
+                'symbol': symbol,
+                'base': base,
+                'quote': quote,
+                'active': undefined,
+                'precision': precision,
+                'taker': this.safeFloat (market, 'taker_fee'),
+                'maker': this.safeFloat (market, 'maker_fee'),
+                'limits': {
+                    'amount': {
+                        'min': this.safeFloat (lotSizeFilter, 'min_trading_qty'),
+                        'max': this.safeFloat (lotSizeFilter, 'max_trading_qty'),
+                    },
+                    'price': {
+                        'min': this.safeFloat (priceFilter, 'min_price'),
+                        'max': this.safeFloat (priceFilter, 'max_price'),
+                    },
+                    'cost': {
+                        'min': undefined,
+                        'max': undefined,
+                    },
+                },
+                'type': 'future',
+                'spot': false,
+                'future': true,
+                'option': false,
+                'info': market,
+            });
+        }
+        return result;
+    }
+
+    async fetchBalance (params = {}) {
+        await this.loadMarkets ();
+        const defaultCode = this.safeValue (this.options, 'code', 'BTC');
+        const options = this.safeValue (this.options, 'fetchBalance', {});
+        const code = this.safeValue (options, 'code', defaultCode);
+        const currency = this.currency (code);
+        const request = {
+            'coin': currency['id'],
+        };
+        const response = await this.privateGetWalletBalance (this.extend (request, params));
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: {
+        //             BTC: {
+        //                 equity: 0,
+        //                 available_balance: 0,
+        //                 used_margin: 0,
+        //                 order_margin: 0,
+        //                 position_margin: 0,
+        //                 occ_closing_fee: 0,
+        //                 occ_funding_fee: 0,
+        //                 wallet_balance: 0,
+        //                 realised_pnl: 0,
+        //                 unrealised_pnl: 0,
+        //                 cum_realised_pnl: 0,
+        //                 given_cash: 0,
+        //                 service_cash: 0
+        //             }
+        //         },
+        //         time_now: '1583937810.370020',
+        //         rate_limit_status: 119,
+        //         rate_limit_reset_ms: 1583937810367,
+        //         rate_limit: 120
+        //     }
+        //
+        const result = {
+            'info': response,
+        };
+        const balances = this.safeValue (response, 'result', {});
+        const currencyIds = Object.keys (balances);
+        for (let i = 0; i < currencyIds.length; i++) {
+            const currencyId = currencyIds[i];
+            const balance = balances[currencyId];
+            const code = this.safeCurrencyCode (currencyId);
+            const account = this.account ();
+            account['free'] = this.safeFloat (balance, 'available_balance');
+            account['used'] = this.safeFloat (balance, 'used_margin');
+            account['total'] = this.safeFloat (balance, 'equity');
+            result[code] = account;
+        }
+        return this.parseBalance (result);
+    }
+
+    parseTicker (ticker, market = undefined) {
+        //
+        // fetchTicker
+        //
+        //     {
+        //         symbol: 'BTCUSD',
+        //         bid_price: '7680',
+        //         ask_price: '7680.5',
+        //         last_price: '7680.00',
+        //         last_tick_direction: 'MinusTick',
+        //         prev_price_24h: '7870.50',
+        //         price_24h_pcnt: '-0.024204',
+        //         high_price_24h: '8035.00',
+        //         low_price_24h: '7671.00',
+        //         prev_price_1h: '7780.00',
+        //         price_1h_pcnt: '-0.012853',
+        //         mark_price: '7683.27',
+        //         index_price: '7682.74',
+        //         open_interest: 188829147,
+        //         open_value: '23670.06',
+        //         total_turnover: '25744224.90',
+        //         turnover_24h: '102997.83',
+        //         total_volume: 225448878806,
+        //         volume_24h: 809919408,
+        //         funding_rate: '0.0001',
+        //         predicted_funding_rate: '0.0001',
+        //         next_funding_time: '2020-03-12T00:00:00Z',
+        //         countdown_hour: 7
+        //     }
+        //
+        const timestamp = undefined;
+        const marketId = this.safeString (ticker, 'symbol');
+        let symbol = marketId;
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
+        }
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+        }
+        const last = this.safeFloat (ticker, 'last_price');
+        const open = this.safeFloat (ticker, 'prev_price_24h');
+        let percentage = this.safeFloat (ticker, 'price_24h_pcnt');
+        if (percentage !== undefined) {
+            percentage *= 100;
+        }
+        let change = undefined;
+        let average = undefined;
+        if ((last !== undefined) && (open !== undefined)) {
+            change = last - open;
+            average = this.sum (open, last) / 2;
+        }
+        const baseVolume = this.safeFloat (ticker, 'turnover_24h');
+        const quoteVolume = this.safeFloat (ticker, 'volume_24h');
+        let vwap = undefined;
+        if (quoteVolume !== undefined && baseVolume !== undefined) {
+            vwap = quoteVolume / baseVolume;
+        }
+        return {
+            'symbol': symbol,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'high': this.safeFloat (ticker, 'high_price_24h'),
+            'low': this.safeFloat (ticker, 'low_price_24h'),
+            'bid': this.safeFloat (ticker, 'bid_price'),
+            'bidVolume': undefined,
+            'ask': this.safeFloat (ticker, 'ask_price'),
+            'askVolume': undefined,
+            'vwap': vwap,
+            'open': open,
+            'close': last,
+            'last': last,
+            'previousClose': undefined,
+            'change': change,
+            'percentage': percentage,
+            'average': average,
+            'baseVolume': baseVolume,
+            'quoteVolume': quoteVolume,
+            'info': ticker,
+        };
+    }
+
+    async fetchTicker (symbol, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const response = await this.publicGetTickers (this.extend (request, params));
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: [
+        //             {
+        //                 symbol: 'BTCUSD',
+        //                 bid_price: '7680',
+        //                 ask_price: '7680.5',
+        //                 last_price: '7680.00',
+        //                 last_tick_direction: 'MinusTick',
+        //                 prev_price_24h: '7870.50',
+        //                 price_24h_pcnt: '-0.024204',
+        //                 high_price_24h: '8035.00',
+        //                 low_price_24h: '7671.00',
+        //                 prev_price_1h: '7780.00',
+        //                 price_1h_pcnt: '-0.012853',
+        //                 mark_price: '7683.27',
+        //                 index_price: '7682.74',
+        //                 open_interest: 188829147,
+        //                 open_value: '23670.06',
+        //                 total_turnover: '25744224.90',
+        //                 turnover_24h: '102997.83',
+        //                 total_volume: 225448878806,
+        //                 volume_24h: 809919408,
+        //                 funding_rate: '0.0001',
+        //                 predicted_funding_rate: '0.0001',
+        //                 next_funding_time: '2020-03-12T00:00:00Z',
+        //                 countdown_hour: 7
+        //             }
+        //         ],
+        //         time_now: '1583948195.818255'
+        //     }
+        //
+        const result = this.safeValue (response, 'result', []);
+        const first = this.safeValue (result, 0);
+        const timestamp = this.safeTimestamp (response, 'time_now');
+        const ticker = this.parseTicker (first, market);
+        ticker['timestamp'] = timestamp;
+        ticker['datetime'] = this.iso8601 (timestamp);
+        return ticker;
+    }
+
+    async fetchTickers (symbols = undefined, params = {}) {
+        await this.loadMarkets ();
+        const response = await this.publicGetTickers (params);
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: [
+        //             {
+        //                 symbol: 'BTCUSD',
+        //                 bid_price: '7680',
+        //                 ask_price: '7680.5',
+        //                 last_price: '7680.00',
+        //                 last_tick_direction: 'MinusTick',
+        //                 prev_price_24h: '7870.50',
+        //                 price_24h_pcnt: '-0.024204',
+        //                 high_price_24h: '8035.00',
+        //                 low_price_24h: '7671.00',
+        //                 prev_price_1h: '7780.00',
+        //                 price_1h_pcnt: '-0.012853',
+        //                 mark_price: '7683.27',
+        //                 index_price: '7682.74',
+        //                 open_interest: 188829147,
+        //                 open_value: '23670.06',
+        //                 total_turnover: '25744224.90',
+        //                 turnover_24h: '102997.83',
+        //                 total_volume: 225448878806,
+        //                 volume_24h: 809919408,
+        //                 funding_rate: '0.0001',
+        //                 predicted_funding_rate: '0.0001',
+        //                 next_funding_time: '2020-03-12T00:00:00Z',
+        //                 countdown_hour: 7
+        //             }
+        //         ],
+        //         time_now: '1583948195.818255'
+        //     }
+        //
+        const result = this.safeValue (response, 'result', []);
+        const tickers = {};
+        for (let i = 0; i < result.length; i++) {
+            const ticker = this.parseTicker (result[i]);
+            const symbol = ticker['symbol'];
+            tickers[symbol] = ticker;
+        }
+        return this.filterByArray (tickers, 'symbol', symbols);
+    }
+
+    parseOHLCV (ohlcv, market = undefined, timeframe = '1m', since = undefined, limit = undefined) {
+        //
+        //     {
+        //         symbol: 'BTCUSD',
+        //         interval: '1',
+        //         open_time: 1583952540,
+        //         open: '7760.5',
+        //         high: '7764',
+        //         low: '7757',
+        //         close: '7763.5',
+        //         volume: '1259766',
+        //         turnover: '162.32773718999994'
+        //     },
+        //
+        return [
+            this.safeTimestamp (ohlcv, 'open_time'),
+            this.safeFloat (ohlcv, 'open'),
+            this.safeFloat (ohlcv, 'high'),
+            this.safeFloat (ohlcv, 'low'),
+            this.safeFloat (ohlcv, 'close'),
+            this.safeFloat (ohlcv, 'turnover'),
+        ];
+    }
+
+    async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+            'interval': this.timeframes[timeframe],
+        };
+        const duration = this.parseTimeframe (timeframe);
+        const now = this.seconds ();
+        if (since === undefined) {
+            if (limit === undefined) {
+                throw new ArgumentsRequired (this.id + ' fetchOHLCV requires a since argument or a limit argument');
+            } else {
+                request['from'] = now - limit * duration;
+            }
+        } else {
+            request['from'] = parseInt (since / 1000);
+        }
+        if (limit !== undefined) {
+            request['limit'] = limit; // max 200, default 200
+        }
+        const response = await this.publicGetKlineList (this.extend (request, params));
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: [
+        //             {
+        //                 symbol: 'BTCUSD',
+        //                 interval: '1',
+        //                 open_time: 1583952540,
+        //                 open: '7760.5',
+        //                 high: '7764',
+        //                 low: '7757',
+        //                 close: '7763.5',
+        //                 volume: '1259766',
+        //                 turnover: '162.32773718999994'
+        //             },
+        //         ],
+        //         time_now: '1583953082.397330'
+        //     }
+        const result = this.safeValue (response, 'result', {});
+        return this.parseOHLCVs (result, market, timeframe, since, limit);
+    }
+
+    parseTrade (trade, market = undefined) {
+        //
+        // fetchTrades (public)
+        //
+        //     {
+        //         id: 43785688,
+        //         symbol: 'BTCUSD',
+        //         price: 7786,
+        //         qty: 67,
+        //         side: 'Sell',
+        //         time: '2020-03-11T19:18:30.123Z'
+        //     }
+        //
+        // fetchMyTrades, fetchOrderTrades (private)
+        //
+        //     {
+        //         "closed_size": 0,
+        //         "cross_seq": 277136382,
+        //         "exec_fee": "0.0000001",
+        //         "exec_id": "256e5ef8-abfe-5772-971b-f944e15e0d68",
+        //         "exec_price": "8178.5",
+        //         "exec_qty": 1,
+        //         "exec_time": "1571676941.70682",
+        //         "exec_type": "Trade", //Exec Type Enum
+        //         "exec_value": "0.00012227",
+        //         "fee_rate": "0.00075",
+        //         "last_liquidity_ind": "RemovedLiquidity", //Liquidity Enum
+        //         "leaves_qty": 0,
+        //         "nth_fill": 2,
+        //         "order_id": "7ad50cb1-9ad0-4f74-804b-d82a516e1029",
+        //         "order_link_id": "",
+        //         "order_price": "8178",
+        //         "order_qty": 1,
+        //         "order_type": "Market", //Order Type Enum
+        //         "side": "Buy", //Side Enum
+        //         "symbol": "BTCUSD", //Symbol Enum
+        //         "user_id": 1
+        //     }
+        //
+        const id = this.safeString2 (trade, 'id', 'exec_id');
+        let symbol = undefined;
+        let base = undefined;
+        const marketId = this.safeString (trade, 'symbol');
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
+            symbol = market['symbol'];
+            base = market['base'];
+        }
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+            base = market['base'];
+        }
+        let timestamp = this.parse8601 (this.safeString (trade, 'time'));
+        if (timestamp === undefined) {
+            timestamp = this.safeTimestamp (trade, 'exec_time');
+        }
+        const side = this.safeStringLower (trade, 'side');
+        const price = this.safeFloat2 (trade, 'price', 'exec_price');
+        const amount = this.safeFloat2 (trade, 'qty', 'exec_qty');
+        let cost = this.safeFloat (trade, 'exec_value');
+        if (cost === undefined) {
+            if (amount !== undefined) {
+                if (price !== undefined) {
+                    cost = amount * price;
+                }
+            }
+        }
+        const lastLiquidityInd = this.safeString (trade, 'last_liquidity_ind');
+        const takerOrMaker = (lastLiquidityInd === 'AddedLiquidity') ? 'maker' : 'taker';
+        const feeCost = this.safeFloat (trade, 'exec_fee');
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            fee = {
+                'cost': feeCost,
+                'currency': base,
+                'rate': this.safeFloat (trade, 'fee_rate'),
+            };
+        }
+        return {
+            'id': id,
+            'info': trade,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'symbol': symbol,
+            'order': this.safeString (trade, 'order_id'),
+            'type': this.safeStringLower (trade, 'order_type'),
+            'side': side,
+            'takerOrMaker': takerOrMaker,
+            'price': price,
+            'amount': amount,
+            'cost': cost,
+            'fee': fee,
+        };
+    }
+
+    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+            // 'from': 123, // from id
+        };
+        if (limit !== undefined) {
+            request['count'] = limit; // default 500, max 1000
+        }
+        const response = await this.publicGetTradingRecords (this.extend (request, params));
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: [
+        //             {
+        //                 id: 43785688,
+        //                 symbol: 'BTCUSD',
+        //                 price: 7786,
+        //                 qty: 67,
+        //                 side: 'Sell',
+        //                 time: '2020-03-11T19:18:30.123Z'
+        //             },
+        //         ],
+        //         time_now: '1583954313.393362'
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        return this.parseTrades (result, market, since, limit);
+    }
+
+    parseOrderBook (orderbook, timestamp = undefined, bidsKey = 'Buy', asksKey = 'Sell', priceKey = 'price', amountKey = 'size') {
+        const bids = [];
+        const asks = [];
+        for (let i = 0; i < orderbook.length; i++) {
+            const bidask = orderbook[i];
+            const side = this.safeString (bidask, 'side');
+            if (side === 'Buy') {
+                bids.push (this.parseBidAsk (bidask, priceKey, amountKey));
+            } else if (side === 'Sell') {
+                asks.push (this.parseBidAsk (bidask, priceKey, amountKey));
+            } else {
+                throw new ExchangeError (this.id + ' parseOrderBook encountered an unrecognized bidask format: ' + this.json (bidask));
+            }
+        }
+        return {
+            'bids': this.sortBy (bids, 0, true),
+            'asks': this.sortBy (asks, 0),
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'nonce': undefined,
+        };
+    }
+
+    async fetchOrderBook (symbol, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const response = await this.publicGetOrderBookL2 (this.extend (request, params));
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: [
+        //             { symbol: 'BTCUSD', price: '7767.5', size: 677956, side: 'Buy' },
+        //             { symbol: 'BTCUSD', price: '7767', size: 580690, side: 'Buy' },
+        //             { symbol: 'BTCUSD', price: '7766.5', size: 475252, side: 'Buy' },
+        //             { symbol: 'BTCUSD', price: '7768', size: 330847, side: 'Sell' },
+        //             { symbol: 'BTCUSD', price: '7768.5', size: 97159, side: 'Sell' },
+        //             { symbol: 'BTCUSD', price: '7769', size: 6508, side: 'Sell' },
+        //         ],
+        //         time_now: '1583954829.874823'
+        //     }
+        //
+        const result = this.safeValue (response, 'result', []);
+        const timestamp = this.safeTimestamp (response, 'time_now');
+        return this.parseOrderBook (result, timestamp, 'Buy', 'Sell', 'price', 'size');
+    }
+
+    parseOrderStatus (status) {
+        const statuses = {
+            // basic orders
+            'Created': 'open',
+            'Rejected': 'rejected', // order is triggered but failed upon being placed
+            'New': 'open',
+            'PartiallyFilled': 'open',
+            'Filled': 'filled',
+            'Cancelled': 'canceled',
+            'PendingCancel': 'canceling', // the engine has received the cancellation but there is no guarantee that it will be successful
+            // conditional orders
+            'Active': 'closed', // order is triggered and placed successfully
+            'Untriggered': 'open', // order waits to be triggered
+            'Triggered': 'closed', // order is triggered
+            // 'Cancelled': 'canceled', // order is cancelled
+            // 'Rejected': 'rejected', // order is triggered but fail to be placed
+            'Deactivated': 'canceled', // conditional order was cancelled before triggering
+        };
+        return this.safeString (statuses, status, status);
+    }
+
+    parseOrder (order, market = undefined) {
+        //
+        // createOrder
+        //
+        //     {
+        //         "user_id": 1,
+        //         "order_id": "335fd977-e5a5-4781-b6d0-c772d5bfb95b",
+        //         "symbol": "BTCUSD",
+        //         "side": "Buy",
+        //         "order_type": "Limit",
+        //         "price": 8800,
+        //         "qty": 1,
+        //         "time_in_force": "GoodTillCancel",
+        //         "order_status": "Created",
+        //         "last_exec_time": 0,
+        //         "last_exec_price": 0,
+        //         "leaves_qty": 1,
+        //         "cum_exec_qty": 0,
+        //         "cum_exec_value": 0,
+        //         "cum_exec_fee": 0,
+        //         "reject_reason": "",
+        //         "order_link_id": "",
+        //         "created_at": "2019-11-30T11:03:43.452Z",
+        //         "updated_at": "2019-11-30T11:03:43.455Z"
+        //     }
+        //
+        const timestamp = this.parse8601 (this.safeString (order, 'created_at'));
+        const id = this.safeString (order, 'order_id');
+        const price = this.safeFloat (order, 'price');
+        const average = this.safeFloat (order, 'average_price');
+        const amount = this.safeFloat (order, 'qty');
+        let filled = this.safeFloat (order, 'cum_exec_qty');
+        let remaining = this.safeFloat (order, 'leaves_qty');
+        let lastTradeTimestamp = this.safeTimestamp (order, 'last_exec_time');
+        if (lastTradeTimestamp === 0) {
+            lastTradeTimestamp = undefined;
+        }
+        let cost = this.safeFloat (order, 'cum_exec_value');
+        if ((filled === undefined) && (amount !== undefined) && (remaining !== undefined)) {
+            filled = amount - remaining;
+        }
+        if (filled !== undefined) {
+            if ((remaining === undefined) && (amount !== undefined)) {
+                remaining = amount - filled;
+            }
+            if (cost === undefined) {
+                if (price !== undefined) {
+                    cost = price * filled;
+                }
+            }
+        }
+        const status = this.parseOrderStatus (this.safeString (order, 'order_status'));
+        const marketId = this.safeString (order, 'symbol');
+        let symbol = undefined;
+        let base = undefined;
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
+            symbol = market['symbol'];
+            base = market['base'];
+        }
+        if (market !== undefined) {
+            if (symbol === undefined) {
+                symbol = market['symbol'];
+            }
+            if (base === undefined) {
+                base = market['base'];
+            }
+        }
+        const side = this.safeStringLower (order, 'side');
+        let feeCost = this.safeFloat (order, 'cum_exec_fee');
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            feeCost = Math.abs (feeCost);
+            fee = {
+                'cost': feeCost,
+                'currency': base,
+            };
+        }
+        const type = this.safeStringLower (order, 'order_type');
+        let clientOrderId = this.safeString (order, 'order_link_id');
+        if ((clientOrderId !== undefined) && (clientOrderId.length < 1)) {
+            clientOrderId = undefined;
+        }
+        return {
+            'info': order,
+            'id': id,
+            'clientOrderId': clientOrderId,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'lastTradeTimestamp': lastTradeTimestamp,
+            'symbol': symbol,
+            'type': type,
+            'side': side,
+            'price': price,
+            'amount': amount,
+            'cost': cost,
+            'average': average,
+            'filled': filled,
+            'remaining': remaining,
+            'status': status,
+            'fee': fee,
+            'trades': undefined,
+        };
+    }
+
+    async fetchOrder (id, symbol = undefined, params = {}) {
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchOrder requires a symbol argument');
+        }
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+            // 'order_link_id': 'string', // one of order_id, stop_order_id or order_link_id is required
+            // regular orders ---------------------------------------------
+            // 'order_id': id, // one of order_id or order_link_id is required for regular orders
+            // conditional orders ---------------------------------------------
+            // 'stop_order_id': id, // one of stop_order_id or order_link_id is required for conditional orders
+        };
+        let method = 'privateGetOrder';
+        const stopOrderId = this.safeString (params, 'stop_order_id');
+        if (stopOrderId === undefined) {
+            const orderLinkId = this.safeString (params, 'order_link_id');
+            if (orderLinkId === undefined) {
+                request['order_id'] = id;
+            }
+        } else {
+            method = 'privateGetStopOrder';
+        }
+        const response = await this[method] (this.extend (request, params));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "OK",
+        //         "ext_code": "",
+        //         "ext_info": "",
+        //         "result": {
+        //             "user_id": 1,
+        //             "symbol": "BTCUSD",
+        //             "side": "Sell",
+        //             "order_type": "Limit",
+        //             "price": "8083",
+        //             "qty": 10,
+        //             "time_in_force": "GoodTillCancel",
+        //             "order_status": "New",
+        //             "ext_fields": { "o_req_num": -308787, "xreq_type": "x_create", "xreq_offset": 4154640 },
+        //             "leaves_qty": 10,
+        //             "leaves_value": "0.00123716",
+        //             "cum_exec_qty": 0,
+        //             "reject_reason": "",
+        //             "order_link_id": "",
+        //             "created_at": "2019-10-21T07:28:19.396246Z",
+        //             "updated_at": "2019-10-21T07:28:19.396246Z",
+        //             "order_id": "efa44157-c355-4a98-b6d6-1d846a936b93"
+        //         },
+        //         "time_now": "1571651135.291930",
+        //         "rate_limit_status": 99, // The remaining number of accesses in one minute
+        //         "rate_limit_reset_ms": 1580885703683,
+        //         "rate_limit": 100
+        //     }
+        //
+        // conditional orders
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "OK",
+        //         "ext_code": "",
+        //         "ext_info": "",
+        //         "result": {
+        //             "user_id": 1,
+        //             "symbol": "BTCUSD",
+        //             "side": "Buy",
+        //             "order_type": "Limit",
+        //             "price": "8000",
+        //             "qty": 1,
+        //             "time_in_force": "GoodTillCancel",
+        //             "order_status": "Untriggered",
+        //             "ext_fields": {},
+        //             "leaves_qty": 1,
+        //             "leaves_value": "0.00013333",
+        //             "cum_exec_qty": 0,
+        //             "cum_exec_value": null,
+        //             "cum_exec_fee": null,
+        //             "reject_reason": "",
+        //             "order_link_id": "",
+        //             "created_at": "2019-12-27T19:56:24.052194Z",
+        //             "updated_at": "2019-12-27T19:56:24.052194Z",
+        //             "order_id": "378a1bbc-a93a-4e75-87f4-502ea754ba36"
+        //         },
+        //         "time_now": "1577476584.386958",
+        //         "rate_limit_status": 99,
+        //         "rate_limit_reset_ms": 1580885703683,
+        //         "rate_limit": 100
+        //     }
+        //
+        const result = this.safeValue (response, 'result');
+        return this.parseOrder (result, market);
+    }
+
+    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            // orders ---------------------------------------------------------
+            'side': this.capitalize (side),
+            'symbol': market['id'],
+            'order_type': this.capitalize (type),
+            'qty': this.amountToPrecision (symbol, amount), // order quantity in USD, integer only
+            // 'price': this.priceToPrecision (symbol, price), // required for limit orders
+            'time_in_force': 'GoodTillCancel', // ImmediateOrCancel, FillOrKill, PostOnly
+            // 'take_profit': 123.45, // take profit price, only take effect upon opening the position
+            // 'stop_loss': 123.45, // stop loss price, only take effect upon opening the position
+            // 'reduce_only': false, // reduce only
+            // when creating a closing order, bybit recommends a True value for
+            // close_on_trigger to avoid failing due to insufficient available margin
+            // 'close_on_trigger': false,
+            // 'order_link_id': 'string', // unique client order id, max 36 characters
+            // conditional orders ---------------------------------------------
+            // base_price is used to compare with the value of stop_px, to decide
+            // whether your conditional order will be triggered by crossing trigger
+            // price from upper side or lower side, mainly used to identify the
+            // expected direction of the current conditional order
+            // 'base_price': 123.45, // required for conditional orders
+            // 'stop_px': 123.45, // trigger price, required for conditional orders
+            // 'trigger_by': 'LastPrice', // IndexPrice, MarkPrice
+        };
+        let priceIsRequired = false;
+        if (type === 'limit') {
+            priceIsRequired = true;
+        }
+        if (priceIsRequired) {
+            if (price !== undefined) {
+                request['price'] = this.priceToPrecision (symbol, price);
+            } else {
+                throw new ArgumentsRequired (this.id + ' createOrder requires a price argument for a ' + type + ' order');
+            }
+        }
+        const stopPx = this.safeValue (params, 'stop_px');
+        const basePrice = this.safeValue (params, 'base_price');
+        let method = 'privatePostOrderCreate';
+        if (stopPx !== undefined) {
+            if (basePrice === undefined) {
+                throw new ArgumentsRequired (this.id + ' createOrder requires both the stop_px and base_price params for a conditional ' + type + ' order');
+            } else {
+                method = 'openapiPostStopOrderCreate';
+                request['stop_px'] = this.priceToPrecision (symbol, stopPx);
+                request['base_price'] = this.priceToPrecision (symbol, basePrice);
+                params = this.omit (params, [ 'stop_px', 'base_price' ]);
+            }
+        } else if (basePrice !== undefined) {
+            throw new ArgumentsRequired (this.id + ' createOrder requires both the stop_px and base_price params for a conditional ' + type + ' order');
+        }
+        const response = await this[method] (this.extend (request, params));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "OK",
+        //         "ext_code": "",
+        //         "ext_info": "",
+        //         "result": {
+        //             "user_id": 1,
+        //             "order_id": "335fd977-e5a5-4781-b6d0-c772d5bfb95b",
+        //             "symbol": "BTCUSD",
+        //             "side": "Buy",
+        //             "order_type": "Limit",
+        //             "price": 8800,
+        //             "qty": 1,
+        //             "time_in_force": "GoodTillCancel",
+        //             "order_status": "Created",
+        //             "last_exec_time": 0,
+        //             "last_exec_price": 0,
+        //             "leaves_qty": 1,
+        //             "cum_exec_qty": 0,
+        //             "cum_exec_value": 0,
+        //             "cum_exec_fee": 0,
+        //             "reject_reason": "",
+        //             "order_link_id": "",
+        //             "created_at": "2019-11-30T11:03:43.452Z",
+        //             "updated_at": "2019-11-30T11:03:43.455Z"
+        //         },
+        //         "time_now": "1575111823.458705",
+        //         "rate_limit_status": 98,
+        //         "rate_limit_reset_ms": 1580885703683,
+        //         "rate_limit": 100
+        //     }
+        //
+        // conditional orders
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": {
+        //             "user_id": 1,
+        //             "symbol": "BTCUSD",
+        //             "side": "Buy",
+        //             "order_type": "Limit",
+        //             "price": 8000,
+        //             "qty": 1,
+        //             "time_in_force": "GoodTillCancel",
+        //             "stop_order_type": "Stop",
+        //             "trigger_by": "LastPrice",
+        //             "base_price": 7000,
+        //             "order_status": "Untriggered",
+        //             "ext_fields": {
+        //                 "stop_order_type": "Stop",
+        //                 "trigger_by": "LastPrice",
+        //                 "base_price": 7000,
+        //                 "expected_direction": "Rising",
+        //                 "trigger_price": 7500,
+        //                 "op_from": "api",
+        //                 "remark": "127.0.01",
+        //                 "o_req_num": 0
+        //             },
+        //             "leaves_qty": 1,
+        //             "leaves_value": 0.00013333,
+        //             "reject_reason": null,
+        //             "cross_seq": -1,
+        //             "created_at": "2019-12-27T12:48:24.000Z",
+        //             "updated_at": "2019-12-27T12:48:24.000Z",
+        //             "stop_px": 7500,
+        //             "stop_order_id": "a85cd1c0-a9a4-49d3-a1bd-bab5ebe946d5"
+        //         },
+        //         "ext_info": null,
+        //         "time_now": "1577450904.327654",
+        //         "rate_limit_status": 99,
+        //         "rate_limit_reset_ms": 1577450904335,
+        //         "rate_limit": "100"
+        //     }
+        //
+        const result = this.safeValue (response, 'result');
+        return this.parseOrder (result, market);
+    }
+
+    async editOrder (id, symbol, type, side, amount = undefined, price = undefined, params = {}) {
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' editOrder requires an symbol argument');
+        }
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            // 'order_id': id, // only for non-conditional orders
+            'symbol': market['id'],
+            // 'p_r_qty': this.amountToPrecision (symbol, amount), // new order quantity, optional
+            // 'p_r_price' this.priceToprecision (symbol, price), // new order price, optional
+            // ----------------------------------------------------------------
+            // conditional orders
+            // 'stop_order_id': id, // only for conditional orders
+            // 'p_r_trigger_price': 123.45, // new trigger price also known as stop_px
+        };
+        const stopOrderId = this.safeString (params, 'stop_order_id');
+        let method = 'openapiPostOrderReplace';
+        if (stopOrderId !== undefined) {
+            method = 'openapiPostStopOrderReplace';
+            request['stop_order_id'] = stopOrderId;
+            params = this.omit (params, [ 'stop_order_id' ]);
+        } else {
+            request['order_id'] = id;
+        }
+        if (amount !== undefined) {
+            request['p_r_qty'] = this.amountToPrecision (symbol, amount);
+        }
+        if (price !== undefined) {
+            request['p_r_price'] = this.priceToPrecision (symbol, price);
+        }
+        const response = await this[method] (this.extend (request, params));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": { "order_id": "efa44157-c355-4a98-b6d6-1d846a936b93" },
+        //         "time_now": "1539778407.210858",
+        //         "rate_limit_status": 99, // remaining number of accesses in one minute
+        //         "rate_limit_reset_ms": 1580885703683,
+        //         "rate_limit": 100
+        //     }
+        //
+        // conditional orders
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": { "stop_order_id": "378a1bbc-a93a-4e75-87f4-502ea754ba36" },
+        //         "ext_info": null,
+        //         "time_now": "1577475760.604942",
+        //         "rate_limit_status": 96,
+        //         "rate_limit_reset_ms": 1577475760612,
+        //         "rate_limit": "100"
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        return {
+            'info': response,
+            'id': this.safeString2 (result, 'order_id', 'stop_order_id'),
+            'order_id': this.safeString (result, 'order_id'),
+            'stop_order_id': this.safeString (result, 'stop_order_id'),
+        };
+    }
+
+    async cancelOrder (id, symbol = undefined, params = {}) {
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchOrder requires a symbol argument');
+        }
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+            // 'order_link_id': 'string', // one of order_id, stop_order_id or order_link_id is required
+            // regular orders ---------------------------------------------
+            // 'order_id': id, // one of order_id or order_link_id is required for regular orders
+            // conditional orders ---------------------------------------------
+            // 'stop_order_id': id, // one of stop_order_id or order_link_id is required for conditional orders
+        };
+        let method = 'privatePostOrderCancel';
+        const stopOrderId = this.safeString (params, 'stop_order_id');
+        if (stopOrderId === undefined) {
+            const orderLinkId = this.safeString (params, 'order_link_id');
+            if (orderLinkId === undefined) {
+                request['order_id'] = id;
+            }
+        } else {
+            method = 'openapiPostStopOrderCancel';
+        }
+        const response = await this[method] (this.extend (request, params));
+        const result = this.safeValue (response, 'result', {});
+        return this.parseOrder (result, market);
+    }
+
+    async cancelAllOrders (symbol = undefined, params = {}) {
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' cancelAllOrders requires a symbol argument');
+        }
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const options = this.safeValue (this.options, 'cancelAllOrders');
+        const method = this.safeString (options, 'method', 'privatePostOrderCancelAll');
+        const response = await this[method] (this.extend (request, params));
+        const result = this.safeValue (response, 'result', []);
+        return this.parseOrders (result, market);
+    }
+
+    async fetchOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            // 'order_id': 'string'
+            // 'order_link_id': 'string', // unique client order id, max 36 characters
+            // 'symbol': market['id'], // default BTCUSD
+            // 'order': 'desc', // asc
+            // 'page': 1,
+            // 'limit': 20, // max 50
+            // 'order_status': 'Created,New'
+            // conditional orders ---------------------------------------------
+            // 'stop_order_id': 'string',
+            // 'stop_order_status': 'Untriggered',
+        };
+        let market = undefined;
+        if (symbol !== undefined) {
+            market = this.market (symbol);
+            request['symbol'] = market['id'];
+        }
+        if (limit !== undefined) {
+            request['limit'] = limit;
+        }
+        const options = this.safeValue (this.options, 'fetchOrders', {});
+        let defaultMethod = 'openapiGetOrderList';
+        let query = params;
+        if (('stop_order_id' in params) || ('stop_order_status' in params)) {
+            let stopOrderStatus = this.safeValue (params, 'stopOrderStatus');
+            if (stopOrderStatus !== undefined) {
+                if (Array.isArray (stopOrderStatus)) {
+                    stopOrderStatus = stopOrderStatus.join (',');
+                }
+                request['stop_order_status'] = stopOrderStatus;
+                query = this.omit (params, 'stop_order_status');
+            }
+            defaultMethod = 'openapiGetStopOrderList';
+        }
+        const method = this.safeString (options, 'method', defaultMethod);
+        const response = await this[method] (this.extend (request, query));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": {
+        //             "current_page": 1,
+        //             "last_page": 6,
+        //             "data": [
+        //                 {
+        //                     "user_id": 1,
+        //                     "symbol": "BTCUSD",
+        //                     "side": "Sell",
+        //                     "order_type": "Market",
+        //                     "price": 7074,
+        //                     "qty": 2,
+        //                     "time_in_force": "ImmediateOrCancel",
+        //                     "order_status": "Filled",
+        //                     "ext_fields": {
+        //                         "close_on_trigger": true,
+        //                         "orig_order_type": "BLimit",
+        //                         "prior_x_req_price": 5898.5,
+        //                         "op_from": "pc",
+        //                         "remark": "127.0.0.1",
+        //                         "o_req_num": -34799032763,
+        //                         "xreq_type": "x_create"
+        //                     },
+        //                     "last_exec_time": "1577448481.696421",
+        //                     "last_exec_price": 7070.5,
+        //                     "leaves_qty": 0,
+        //                     "leaves_value": 0,
+        //                     "cum_exec_qty": 2,
+        //                     "cum_exec_value": 0.00028283,
+        //                     "cum_exec_fee": 0.00002,
+        //                     "reject_reason": "NoError",
+        //                     "order_link_id": "",
+        //                     "created_at": "2019-12-27T12:08:01.000Z",
+        //                     "updated_at": "2019-12-27T12:08:01.000Z",
+        //                     "order_id": "f185806b-b801-40ff-adec-52289370ed62"
+        //                 }
+        //             ]
+        //         },
+        //         "ext_info": null,
+        //         "time_now": "1577448922.437871",
+        //         "rate_limit_status": 98,
+        //         "rate_limit_reset_ms": 1580885703683,
+        //         "rate_limit": 100
+        //     }
+        //
+        // conditional orders
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": {
+        //             "current_page": 1,
+        //             "last_page": 1,
+        //             "data": [
+        //                 {
+        //                     "user_id": 1,
+        //                     "stop_order_status": "Untriggered",
+        //                     "symbol": "BTCUSD",
+        //                     "side": "Buy",
+        //                     "order_type": "Limit",
+        //                     "price": 8000,
+        //                     "qty": 1,
+        //                     "time_in_force": "GoodTillCancel",
+        //                     "stop_order_type": "Stop",
+        //                     "trigger_by": "LastPrice",
+        //                     "base_price": 7000,
+        //                     "order_link_id": "",
+        //                     "created_at": "2019-12-27T12:48:24.000Z",
+        //                     "updated_at": "2019-12-27T12:48:24.000Z",
+        //                     "stop_px": 7500,
+        //                     "stop_order_id": "a85cd1c0-a9a4-49d3-a1bd-bab5ebe946d5"
+        //                 },
+        //             ]
+        //         },
+        //         "ext_info": null,
+        //         "time_now": "1577451658.755468",
+        //         "rate_limit_status": 599,
+        //         "rate_limit_reset_ms": 1577451658762,
+        //         "rate_limit": 600
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseOrders (data, market, since, limit);
+    }
+
+    async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        const defaultStatuses = [
+            'Rejected',
+            'Filled',
+            'Cancelled',
+            // conditional orders
+            // 'Active',
+            // 'Triggered',
+            // 'Cancelled',
+            // 'Rejected',
+            // 'Deactivated',
+        ];
+        const options = this.safeValue (this.options, 'fetchClosedOrders', {});
+        let status = this.safeValue (options, 'order_status', defaultStatuses);
+        if (Array.isArray (status)) {
+            status = status.join (',');
+        }
+        const request = {};
+        const stopOrderStatus = this.safeValue (params, 'stop_order_status');
+        if (stopOrderStatus === undefined) {
+            request['order_status'] = status;
+        } else {
+            request['stop_order_status'] = stopOrderStatus;
+        }
+        return await this.fetchOrders (symbol, since, limit, this.extend (request, params));
+    }
+
+    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        const defaultStatuses = [
+            'Created',
+            'New',
+            'PartiallyFilled',
+            'PendingCancel',
+            // conditional orders
+            // 'Untriggered',
+        ];
+        const options = this.safeValue (this.options, 'fetchOpenOrders', {});
+        let status = this.safeValue (options, 'order_status', defaultStatuses);
+        if (Array.isArray (status)) {
+            status = status.join (',');
+        }
+        const request = {};
+        const stopOrderStatus = this.safeValue (params, 'stop_order_status');
+        if (stopOrderStatus === undefined) {
+            request['order_status'] = status;
+        } else {
+            request['stop_order_status'] = stopOrderStatus;
+        }
+        return await this.fetchOrders (symbol, since, limit, this.extend (request, params));
+    }
+
+    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        const request = {
+            'order_id': id,
+        };
+        return await this.fetchMyTrades (symbol, since, limit, this.extend (request, params));
+    }
+
+    async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            // 'order_id': 'f185806b-b801-40ff-adec-52289370ed62', // if not provided will return user's trading records
+            // 'symbol': market['id'],
+            // 'start_time': parseInt (since / 1000),
+            // 'page': 1,
+            // 'limit' 20, // max 50
+        };
+        let market = undefined;
+        if (symbol === undefined) {
+            const orderId = this.safeString (params, 'order_id');
+            if (orderId === undefined) {
+                throw new ArgumentsRequired (this.id + ' fetchMyTrades requires a symbol argument or an order_id param');
+            } else {
+                request['order_id'] = orderId;
+                params = this.omit (params, 'order_id');
+            }
+        } else {
+            market = this.market (symbol);
+            request['symbol'] = market['id'];
+        }
+        if (since !== undefined) {
+            request['start_time'] = parseInt (since / 1000);
+        }
+        if (limit !== undefined) {
+            request['limit'] = limit; // default 20, max 50
+        }
+        const response = await this.privateGetExecutionList (this.extend (request, params));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "OK",
+        //         "ext_code": "",
+        //         "ext_info": "",
+        //         "result": {
+        //             "order_id": "Abandoned!!", // Abandoned!!
+        //             "trade_list": [
+        //                 {
+        //                     "closed_size": 0,
+        //                     "cross_seq": 277136382,
+        //                     "exec_fee": "0.0000001",
+        //                     "exec_id": "256e5ef8-abfe-5772-971b-f944e15e0d68",
+        //                     "exec_price": "8178.5",
+        //                     "exec_qty": 1,
+        //                     "exec_time": "1571676941.70682",
+        //                     "exec_type": "Trade", //Exec Type Enum
+        //                     "exec_value": "0.00012227",
+        //                     "fee_rate": "0.00075",
+        //                     "last_liquidity_ind": "RemovedLiquidity", //Liquidity Enum
+        //                     "leaves_qty": 0,
+        //                     "nth_fill": 2,
+        //                     "order_id": "7ad50cb1-9ad0-4f74-804b-d82a516e1029",
+        //                     "order_link_id": "",
+        //                     "order_price": "8178",
+        //                     "order_qty": 1,
+        //                     "order_type": "Market", //Order Type Enum
+        //                     "side": "Buy", //Side Enum
+        //                     "symbol": "BTCUSD", //Symbol Enum
+        //                     "user_id": 1
+        //                 }
+        //             ]
+        //         },
+        //         "time_now": "1577483699.281488",
+        //         "rate_limit_status": 118,
+        //         "rate_limit_reset_ms": 1577483699244737,
+        //         "rate_limit": 120
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const trades = this.safeValue (result, 'trade_list', []);
+        return this.parseTrades (trades, market, since, limit);
+    }
+
+    async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
+        if (code === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchWithdrawals() requires a currency code argument');
+        }
+        await this.loadMarkets ();
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        if (limit !== undefined) {
+            request['count'] = limit;
+        }
+        const response = await this.privateGetGetDeposits (this.extend (request, params));
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 5611,
+        //         "result": {
+        //             "count": 1,
+        //             "data": [
+        //                 {
+        //                     "address": "2N35qDKDY22zmJq9eSyiAerMD4enJ1xx6ax",
+        //                     "amount": 5,
+        //                     "currency": "BTC",
+        //                     "received_timestamp": 1549295017670,
+        //                     "state": "completed",
+        //                     "transaction_id": "230669110fdaf0a0dbcdc079b6b8b43d5af29cc73683835b9bc6b3406c065fda",
+        //                     "updated_timestamp": 1549295130159
+        //                 }
+        //             ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseTransactions (data, currency, since, limit, params);
+    }
+
+    async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            // 'coin': currency['id'],
+            // 'start_date': this.iso8601 (since),
+            // 'end_date': this.iso8601 (till),
+            // 'status': 'Pending', // ToBeConfirmed, UnderReview, Pending, Success, CancelByUser, Reject, Expire
+            // 'page': 1,
+            // 'limit': 20, // max 50
+        };
+        let currency = undefined;
+        if (code !== undefined) {
+            currency = this.currency (code);
+            request['coin'] = currency['id'];
+        }
+        if (since !== undefined) {
+            request['start_date'] = this.iso8601 (since);
+        }
+        if (limit !== undefined) {
+            request['limit'] = limit;
+        }
+        const response = await this.openapiGetWalletWithdrawList (this.extend (request, params));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": {
+        //             "data": [
+        //                 {
+        //                     "id": 137,
+        //                     "user_id": 1,
+        //                     "coin": "XRP", // Coin Enum
+        //                     "status": "Pending", // Withdraw Status Enum
+        //                     "amount": "20.00000000",
+        //                     "fee": "0.25000000",
+        //                     "address": "rH7H595XYEVTEHU2FySYsWnmfACBnZS9zM",
+        //                     "tx_id": "",
+        //                     "submited_at": "2019-06-11T02:20:24.000Z",
+        //                     "updated_at": "2019-06-11T02:20:24.000Z"
+        //                 },
+        //             ],
+        //             "current_page": 1,
+        //             "last_page": 1
+        //         },
+        //         "ext_info": null,
+        //         "time_now": "1577482295.125488",
+        //         "rate_limit_status": 119,
+        //         "rate_limit_reset_ms": 1577482295132,
+        //         "rate_limit": 120
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseTransactions (data, currency, since, limit, params);
+    }
+
+    parseTransactionStatus (status) {
+        const statuses = {
+            'ToBeConfirmed': 'pending',
+            'UnderReview': 'pending',
+            'Pending': 'pending',
+            'Success': 'ok',
+            'CancelByUser': 'canceled',
+            'Reject': 'rejected',
+            'Expire': 'expired',
+        };
+        return this.safeString (statuses, status, status);
+    }
+
+    parseTransaction (transaction, currency = undefined) {
+        //
+        // fetchWithdrawals
+        //
+        //     {
+        //         "id": 137,
+        //         "user_id": 1,
+        //         "coin": "XRP", // Coin Enum
+        //         "status": "Pending", // Withdraw Status Enum
+        //         "amount": "20.00000000",
+        //         "fee": "0.25000000",
+        //         "address": "rH7H595XYEVTEHU2FySYsWnmfACBnZS9zM",
+        //         "tx_id": "",
+        //         "submited_at": "2019-06-11T02:20:24.000Z",
+        //         "updated_at": "2019-06-11T02:20:24.000Z"
+        //     }
+        //
+        const currencyId = this.safeString (transaction, 'coin');
+        const code = this.safeCurrencyCode (currencyId, currency);
+        const timestamp = this.parse8601 (this.safeString (transaction, 'submited_at'));
+        const updated = this.parse8601 (this.safeString (transaction, 'updated_at'));
+        const status = this.parseTransactionStatus (this.safeString (transaction, 'status'));
+        const address = this.safeString (transaction, 'address');
+        const feeCost = this.safeFloat (transaction, 'fee');
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            fee = {
+                'cost': feeCost,
+                'currency': code,
+            };
+        }
+        return {
+            'info': transaction,
+            'id': this.safeString (transaction, 'id'),
+            'txid': this.safeString (transaction, 'tx_id'),
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'address': address,
+            'addressTo': undefined,
+            'addressFrom': undefined,
+            'tag': undefined,
+            'tagTo': undefined,
+            'tagFrom': undefined,
+            'type': 'withdrawal',
+            'amount': this.safeFloat (transaction, 'amount'),
+            'currency': code,
+            'status': status,
+            'updated': updated,
+            'fee': fee,
+        };
+    }
+
+    async fetchLedger (code = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            // 'coin': currency['id'],
+            // 'currency': currency['id'], // alias
+            // 'start_date': this.iso8601 (since),
+            // 'end_date': this.iso8601 (till),
+            // 'wallet_fund_type': 'Deposit', // Withdraw, RealisedPNL, Commission, Refund, Prize, ExchangeOrderWithdraw, ExchangeOrderDeposit
+            // 'page': 1,
+            // 'limit': 20, // max 50
+        };
+        let currency = undefined;
+        if (code !== undefined) {
+            currency = this.currency (code);
+            request['coin'] = currency['id'];
+        }
+        if (since !== undefined) {
+            request['start_date'] = this.iso8601 (since);
+        }
+        if (limit !== undefined) {
+            request['limit'] = limit;
+        }
+        const response = await this.openapiGetWalletFundRecords (this.extend (request, params));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": {
+        //             "data": [
+        //                 {
+        //                     "id": 234467,
+        //                     "user_id": 1,
+        //                     "coin": "BTC",
+        //                     "wallet_id": 27913,
+        //                     "type": "Realized P&L",
+        //                     "amount": "-0.00000006",
+        //                     "tx_id": "",
+        //                     "address": "BTCUSD",
+        //                     "wallet_balance": "0.03000330",
+        //                     "exec_time": "2019-12-09T00:00:25.000Z",
+        //                     "cross_seq": 0
+        //                 }
+        //             ]
+        //         },
+        //         "ext_info": null,
+        //         "time_now": "1577481867.115552",
+        //         "rate_limit_status": 119,
+        //         "rate_limit_reset_ms": 1577481867122,
+        //         "rate_limit": 120
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseLedger (data, currency, since, limit);
+    }
+
+    parseLedgerEntry (item, currency = undefined) {
+        //
+        //     {
+        //         "id": 234467,
+        //         "user_id": 1,
+        //         "coin": "BTC",
+        //         "wallet_id": 27913,
+        //         "type": "Realized P&L",
+        //         "amount": "-0.00000006",
+        //         "tx_id": "",
+        //         "address": "BTCUSD",
+        //         "wallet_balance": "0.03000330",
+        //         "exec_time": "2019-12-09T00:00:25.000Z",
+        //         "cross_seq": 0
+        //     }
+        //
+        const currencyId = this.safeString (item, 'coin');
+        const code = this.safeCurrencyCode (currencyId, currency);
+        const amount = this.safeFloat (item, 'amount');
+        const after = this.safeFloat (item, 'wallet_balance');
+        const direction = (amount < 0) ? 'out' : 'in';
+        let before = undefined;
+        if (after !== undefined && amount !== undefined) {
+            const difference = (direction === 'out') ? amount : -amount;
+            before = this.sum (after, difference);
+        }
+        const timestamp = this.parse8601 (this.safeString (item, 'exec_time'));
+        const type = this.parseLedgerEntryType (this.safeString (item, 'type'));
+        const id = this.safeString (item, 'id');
+        const referenceId = this.safeString (item, 'tx_id');
+        return {
+            'id': id,
+            'currency': code,
+            'account': this.safeString (item, 'wallet_id'),
+            'referenceAccount': undefined,
+            'referenceId': referenceId,
+            'status': undefined,
+            'amount': amount,
+            'before': before,
+            'after': after,
+            'fee': undefined,
+            'direction': direction,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'type': type,
+            'info': item,
+        };
+    }
+
+    parseLedgerEntryType (type) {
+        const types = {
+            'Deposit': 'transaction',
+            'Withdraw': 'transaction',
+            'RealisedPNL': 'trade',
+            'Commission': 'fee',
+            'Refund': 'cashback',
+            'Prize': 'prize', // ?
+            'ExchangeOrderWithdraw': 'transaction',
+            'ExchangeOrderDeposit': 'transaction',
+        };
+        return this.safeString (types, type, type);
+    }
+
+    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
+        let url = this.urls['api'];
+        let request = path;
+        // public v2
+        if (api === 'public') {
+            request = '/' + this.version + '/' + api + '/' + request;
+            if (Object.keys (params).length) {
+                request += '?' + this.rawencode (params);
+            }
+        } else {
+            this.checkRequiredCredentials ();
+            if (api === 'openapi') {
+                request = '/open-api/' + request;
+            } else if (api === 'private') {
+                // private v2
+                request = '/' + this.version + '/' + api + '/' + request;
+            } else {
+                // position, user
+                request = '/' + api + '/' + request;
+            }
+            const timestamp = this.nonce ();
+            const query = this.extend (params, {
+                'api_key': this.apiKey,
+                'recvWindow': this.options['recvWindow'],
+                'timestamp': timestamp,
+            });
+            const auth = this.rawencode (this.keysort (query));
+            const signature = this.hmac (this.encode (auth), this.encode (this.secret));
+            if (method === 'POST') {
+                body = this.json (this.extend (query, {
+                    'sign': signature,
+                }));
+                headers = {
+                    'Content-Type': 'application/json',
+                };
+            } else {
+                request += '?' + auth + '&sign=' + signature;
+            }
+        }
+        url += request;
+        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
+    }
+
+    handleErrors (httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody) {
+        if (!response) {
+            return; // fallback to default error handler
+        }
+        //
+        //     {
+        //         ret_code: 10001,
+        //         ret_msg: 'ReadMapCB: expect { or n, but found \u0000, error ' +
+        //         'found in #0 byte of ...||..., bigger context ' +
+        //         '...||...',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: null,
+        //         time_now: '1583934106.590436'
+        //     }
+        //
+        const errorCode = this.safeValue (response, 'ret_code');
+        if (errorCode !== 0) {
+            const feedback = this.id + ' ' + body;
+            this.throwExactlyMatchedException (this.exceptions['exact'], errorCode, feedback);
+            this.throwBroadlyMatchedException (this.exceptions['broad'], body, feedback);
+            throw new ExchangeError (feedback); // unknown message
+        }
+    }
+};
+
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],58:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -32361,10 +35008,16 @@ module.exports = class bytetrade extends Exchange {
                 '1M': '1M',
             },
             'urls': {
-                'test': 'https://api-v2-test.bytetrade.com',
+                'test': {
+                    'market': 'https://api-v2-test.byte-trade.com',
+                    'public': 'https://api-v2-test.byte-trade.com',
+                },
                 'logo': 'https://user-images.githubusercontent.com/1294454/67288762-2f04a600-f4e6-11e9-9fd6-c60641919491.jpg',
-                'api': 'https://api-v2.bytetrade.com',
-                'www': 'https://www.bytetrade.com',
+                'api': {
+                    'market': 'https://api-v2.bytetrade.com',
+                    'public': 'https://api-v2.bytetrade.com',
+                },
+                'www': 'https://www.byte-trade.com',
                 'doc': 'https://github.com/Bytetrade/bytetrade-official-api-docs/wiki',
             },
             'api': {
@@ -32431,7 +35084,7 @@ module.exports = class bytetrade extends Exchange {
                 code = this.safeString (currency, 'name');
             }
             const name = this.safeString (currency, 'fullname');
-            // in bytetrade.com DEX, request https://api-v2.bytetrade.com/currencies will return currencies,
+            // in byte-trade.com DEX, request https://api-v2.byte-trade.com/currencies will return currencies,
             // the api doc is https://github.com/Bytetrade/bytetrade-official-api-docs/wiki/rest-api#get-currencies-get-currencys-supported-in-bytetradecom
             // we can see the coin name is none-unique in the result, the coin which code is 18 is the CyberMiles ERC20, and the coin which code is 35 is the CyberMiles main chain, but their name is same.
             // that is because bytetrade is a DEX, supports people create coin with the same name, but the id(code) of coin is unique, so we should use the id or name and id as the identity of coin.
@@ -32855,6 +35508,7 @@ module.exports = class bytetrade extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': datetime,
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -32869,6 +35523,7 @@ module.exports = class bytetrade extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
@@ -32907,7 +35562,8 @@ module.exports = class bytetrade extends Exchange {
         datetime = datetime.split ('.')[0];
         let expirationDatetime = this.iso8601 (expiration);
         expirationDatetime = expirationDatetime.split ('.')[0];
-        const chainName = 'Sagittarius';
+        const defaultDappId = 'Sagittarius';
+        const dappId = this.safeString (params, 'dappId', defaultDappId);
         const defaultFee = this.safeString (this.options, 'fee', '300000000000000');
         const fee = this.safeString (params, 'fee', defaultFee);
         const eightBytes = this.integerPow ('2', '64');
@@ -32938,8 +35594,8 @@ module.exports = class bytetrade extends Exchange {
             this.numberToLE (parseInt (baseId), 4),
             this.numberToLE (0, 1),
             this.numberToLE (1, 1),
-            this.numberToLE (chainName.length, 1),
-            this.stringToBinary (this.encode (chainName)),
+            this.numberToLE (dappId.length, 1),
+            this.stringToBinary (this.encode (dappId)),
             this.numberToLE (0, 1),
         ];
         const txByteStringArray = [
@@ -32968,8 +35624,8 @@ module.exports = class bytetrade extends Exchange {
             this.numberToLE (parseInt (baseId), 4),
             this.numberToLE (0, 1),
             this.numberToLE (1, 1),
-            this.numberToLE (chainName.length, 1),
-            this.stringToBinary (this.encode (chainName)),
+            this.numberToLE (dappId.length, 1),
+            this.stringToBinary (this.encode (dappId)),
             this.numberToLE (0, 1),
         ];
         const txbytestring = this.binaryConcatArray (txByteStringArray);
@@ -33012,7 +35668,7 @@ module.exports = class bytetrade extends Exchange {
                 ],
             ],
             'validate_type': 0,
-            'dapp': 'Sagittarius',
+            'dapp': dappId,
             'signatures': [
                 mySignature,
             ],
@@ -33041,6 +35697,8 @@ module.exports = class bytetrade extends Exchange {
             'cost': undefined,
             'trades': undefined,
             'fee': undefined,
+            'clientOrderId': undefined,
+            'average': undefined,
         };
     }
 
@@ -33141,7 +35799,8 @@ module.exports = class bytetrade extends Exchange {
         datetime = datetime.split ('.')[0];
         let expirationDatetime = this.iso8601 (expiration);
         expirationDatetime = expirationDatetime.split ('.')[0];
-        const chainName = 'Sagittarius';
+        const defaultDappId = 'Sagittarius';
+        const dappId = this.safeString (params, 'dappId', defaultDappId);
         const byteStringArray = [
             this.numberToBE (1, 32),
             this.numberToLE (Math.floor (now / 1000), 4),
@@ -33160,8 +35819,8 @@ module.exports = class bytetrade extends Exchange {
             this.numberToLE (parseInt (baseId), 4),
             this.numberToLE (0, 1),
             this.numberToLE (1, 1),
-            this.numberToLE (chainName.length, 1),
-            this.stringToBinary (this.encode (chainName)),
+            this.numberToLE (dappId.length, 1),
+            this.stringToBinary (this.encode (dappId)),
             this.numberToLE (0, 1),
         ];
         const bytestring = this.binaryConcatArray (byteStringArray);
@@ -33187,7 +35846,7 @@ module.exports = class bytetrade extends Exchange {
                 ],
             ],
             'validate_type': 0,
-            'dapp': 'Sagittarius',
+            'dapp': dappId,
             'signatures': [
                 mySignature,
             ],
@@ -33216,6 +35875,8 @@ module.exports = class bytetrade extends Exchange {
             'cost': undefined,
             'trades': undefined,
             'fee': undefined,
+            'clientOrderId': undefined,
+            'average': undefined,
         };
     }
 
@@ -33236,7 +35897,8 @@ module.exports = class bytetrade extends Exchange {
         let expirationDatetime = this.iso8601 (expiration);
         expirationDatetime = expirationDatetime.split ('.')[0];
         const feeAmount = '300000000000000';
-        const chainName = 'Sagittarius';
+        const defaultDappId = 'Sagittarius';
+        const dappId = this.safeString (params, 'dappId', defaultDappId);
         const eightBytes = this.integerPow ('2', '64');
         const byteStringArray = [
             this.numberToBE (1, 32),
@@ -33259,8 +35921,8 @@ module.exports = class bytetrade extends Exchange {
             this.stringToBinary (this.encode (message)),
             this.numberToLE (0, 1),
             this.numberToLE (1, 1),
-            this.numberToLE (chainName.length, 1),
-            this.stringToBinary (this.encode (chainName)),
+            this.numberToLE (dappId.length, 1),
+            this.stringToBinary (this.encode (dappId)),
             this.numberToLE (0, 1),
         ];
         const bytestring = this.binaryConcatArray (byteStringArray);
@@ -33286,7 +35948,7 @@ module.exports = class bytetrade extends Exchange {
                 ],
             ],
             'validate_type': 0,
-            'dapp': 'Sagittarius',
+            'dapp': dappId,
             'signatures': [
                 mySignature,
             ],
@@ -33319,6 +35981,9 @@ module.exports = class bytetrade extends Exchange {
             'remaining': undefined,
             'cost': undefined,
             'fee': undefined,
+            'clientOrderId': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
@@ -33498,7 +36163,8 @@ module.exports = class bytetrade extends Exchange {
         datetime = datetime.split ('.')[0];
         let expirationDatetime = this.iso8601 (expiration);
         expirationDatetime = expirationDatetime.split ('.')[0];
-        const chainName = 'Sagittarius';
+        const defaultDappId = 'Sagittarius';
+        const dappId = this.safeString (params, 'dappId', defaultDappId);
         const feeAmount = '300000000000000';
         const currency = this.currency (code);
         const coinId = currency['id'];
@@ -33530,8 +36196,8 @@ module.exports = class bytetrade extends Exchange {
                 this.numberToLE (this.integerModulo (assetFee, eightBytes), 8),
                 this.numberToLE (0, 1),
                 this.numberToLE (1, 1),
-                this.numberToLE (chainName.length, 1),
-                this.stringToBinary (this.encode (chainName)),
+                this.numberToLE (dappId.length, 1),
+                this.stringToBinary (this.encode (dappId)),
                 this.numberToLE (0, 1),
             ];
         } else {
@@ -33560,8 +36226,8 @@ module.exports = class bytetrade extends Exchange {
                 this.numberToLE (this.integerModulo (amountChain, eightBytes), 8),
                 this.numberToLE (0, 1),
                 this.numberToLE (1, 1),
-                this.numberToLE (chainName.length, 1),
-                this.stringToBinary (this.encode (chainName)),
+                this.numberToLE (dappId.length, 1),
+                this.stringToBinary (this.encode (dappId)),
                 this.numberToLE (0, 1),
             ];
         }
@@ -33593,7 +36259,7 @@ module.exports = class bytetrade extends Exchange {
                     ],
                 ],
                 'validate_type': 0,
-                'dapp': 'Sagittarius',
+                'dapp': dappId,
                 'signatures': [
                     mySignature,
                 ],
@@ -33630,7 +36296,7 @@ module.exports = class bytetrade extends Exchange {
                     ],
                 ],
                 'validate_type': 0,
-                'dapp': 'Sagittarius',
+                'dapp': dappId,
                 'signatures': [
                     mySignature,
                 ],
@@ -33659,7 +36325,7 @@ module.exports = class bytetrade extends Exchange {
     }
 
     sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = this.urls['api'];
+        let url = this.urls['api'][api];
         url += '/' + path;
         if (Object.keys (params).length) {
             url += '?' + this.urlencode (params);
@@ -33686,7 +36352,7 @@ module.exports = class bytetrade extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],59:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],59:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -34043,6 +36709,7 @@ module.exports = class cex extends Exchange {
                         'max': undefined,
                     },
                 },
+                'active': undefined,
             });
         }
         return result;
@@ -34252,9 +36919,45 @@ module.exports = class cex extends Exchange {
             request['order_type'] = type;
         }
         const response = await this.privatePostPlaceOrderPair (this.extend (request, params));
+        //
+        //     {
+        //         "id": "12978363524",
+        //         "time": 1586610022259,
+        //         "type": "buy",
+        //         "price": "0.033934",
+        //         "amount": "0.10722802",
+        //         "pending": "0.10722802",
+        //         "complete": false
+        //     }
+        //
+        const placedAmount = this.safeFloat (response, 'amount');
+        const remaining = this.safeFloat (response, 'pending');
+        const timestamp = this.safeValue (response, 'time');
+        const complete = this.safeValue (response, 'complete');
+        const status = complete ? 'closed' : 'open';
+        let filled = undefined;
+        if ((placedAmount !== undefined) && (remaining !== undefined)) {
+            filled = Math.max (placedAmount - remaining, 0);
+        }
         return {
+            'id': this.safeString (response, 'id'),
             'info': response,
-            'id': response['id'],
+            'clientOrderId': undefined,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'lastTradeTimestamp': undefined,
+            'type': type,
+            'side': this.safeString (response, 'type'),
+            'symbol': symbol,
+            'status': status,
+            'price': this.safeFloat (response, 'price'),
+            'amount': placedAmount,
+            'cost': undefined,
+            'average': undefined,
+            'remaining': remaining,
+            'filled': filled,
+            'fee': undefined,
+            'trades': undefined,
         };
     }
 
@@ -34494,11 +37197,14 @@ module.exports = class cex extends Exchange {
                         'currency': market['quote'],
                     },
                     'info': item,
+                    'type': undefined,
+                    'takerOrMaker': undefined,
                 });
             }
         }
         return {
             'id': orderId,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -34514,6 +37220,7 @@ module.exports = class cex extends Exchange {
             'trades': trades,
             'fee': fee,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -34866,7 +37573,7 @@ module.exports = class cex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],60:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],60:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -34900,870 +37607,7 @@ module.exports = class chilebit extends foxbit {
     }
 };
 
-},{"./foxbit.js":86}],61:[function(require,module,exports){
-'use strict';
-
-//  ---------------------------------------------------------------------------
-
-const Exchange = require ('./base/Exchange');
-const { ExchangeError, InvalidAddress, InsufficientFunds, InvalidNonce, InvalidOrder, OrderNotFound, PermissionDenied } = require ('./base/errors');
-
-//  ---------------------------------------------------------------------------
-
-module.exports = class cobinhood extends Exchange {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'cobinhood',
-            'name': 'COBINHOOD',
-            'countries': [ 'TW' ],
-            'rateLimit': 1000 / 10,
-            'version': 'v1',
-            'has': {
-                'fetchCurrencies': true,
-                'fetchTickers': true,
-                'fetchOHLCV': true,
-                'fetchOpenOrders': true,
-                'fetchClosedOrders': true,
-                'fetchOrderTrades': true,
-                'fetchOrder': true,
-                'fetchDepositAddress': true,
-                'createDepositAddress': true,
-                'fetchDeposits': true,
-                'fetchWithdrawals': true,
-                'withdraw': true,
-                'fetchMyTrades': true,
-                'editOrder': true,
-            },
-            'requiredCredentials': {
-                'apiKey': true,
-                'secret': false,
-            },
-            'timeframes': {
-                // the first two don't seem to work at all
-                '1m': '1m',
-                '5m': '5m',
-                '15m': '15m',
-                '30m': '30m',
-                '1h': '1h',
-                '3h': '3h',
-                '6h': '6h',
-                '12h': '12h',
-                '1d': '1D',
-                '1w': '7D',
-                '2w': '14D',
-                '1M': '1M',
-            },
-            'urls': {
-                'referral': 'https://cobinhood.com?referrerId=a9d57842-99bb-4d7c-b668-0479a15a458b',
-                'logo': 'https://user-images.githubusercontent.com/1294454/35755576-dee02e5c-0878-11e8-989f-1595d80ba47f.jpg',
-                'api': 'https://api.cobinhood.com',
-                'www': 'https://cobinhood.com',
-                'doc': 'https://cobinhood.github.io/api-public',
-            },
-            'api': {
-                'system': {
-                    'get': [
-                        'info',
-                        'time',
-                        'messages',
-                        'messages/{message_id}',
-                    ],
-                },
-                'admin': {
-                    'get': [
-                        'system/messages',
-                        'system/messages/{message_id}',
-                    ],
-                    'post': [
-                        'system/messages',
-                    ],
-                    'patch': [
-                        'system/messages/{message_id}',
-                    ],
-                    'delete': [
-                        'system/messages/{message_id}',
-                    ],
-                },
-                'public': {
-                    'get': [
-                        'market/fundingbook/precisions/{currency_id}',
-                        'market/fundingbooks/{currency_id}',
-                        'market/tickers',
-                        'market/currencies',
-                        'market/quote_currencies',
-                        'market/trading_pairs',
-                        'market/orderbook/precisions/{trading_pair_id}',
-                        'market/orderbooks/{trading_pair_id}',
-                        'market/stats',
-                        'market/tickers', // fetchTickers
-                        'market/tickers/{trading_pair_id}',
-                        'market/trades/{trading_pair_id}',
-                        'market/trades_history/{trading_pair_id}',
-                        'market/trading_pairs',
-                        'chart/candles/{trading_pair_id}',
-                        'system/time',
-                    ],
-                },
-                'private': {
-                    'get': [
-                        'funding/auto_offerings',
-                        'funding/auto_offerings/{currency_id}',
-                        'funding/funding_history',
-                        'funding/fundings',
-                        'funding/loans',
-                        'funding/loans/{loan_id}',
-                        'trading/orders/{order_id}',
-                        'trading/orders/{order_id}/trades',
-                        'trading/orders',
-                        'trading/order_history',
-                        'trading/positions',
-                        'trading/positions/{trading_pair_id}',
-                        'trading/positions/{trading_pair_id}/claimable_size',
-                        'trading/trades',
-                        'trading/trades/{trade_id}',
-                        'trading/volume',
-                        'wallet/balances',
-                        'wallet/ledger',
-                        'wallet/limits/withdrawal',
-                        'wallet/generic_deposits',
-                        'wallet/generic_deposits/{generic_deposit_id}',
-                        'wallet/generic_withdrawals',
-                        'wallet/generic_withdrawals/{generic_withdrawal_id}',
-                        // older endpoints
-                        'wallet/deposit_addresses',
-                        'wallet/deposit_addresses/iota',
-                        'wallet/withdrawal_addresses',
-                        'wallet/withdrawal_frozen',
-                        'wallet/withdrawals/{withdrawal_id}',
-                        'wallet/withdrawals',
-                        'wallet/deposits/{deposit_id}',
-                        'wallet/deposits',
-                    ],
-                    'patch': [
-                        'trading/positions/{trading_pair_id}',
-                    ],
-                    'post': [
-                        'funding/auto_offerings',
-                        'funding/fundings',
-                        'trading/check_order',
-                        'trading/orders',
-                        // older endpoints
-                        'wallet/deposit_addresses',
-                        'wallet/transfer',
-                        'wallet/withdrawal_addresses',
-                        'wallet/withdrawals',
-                        'wallet/withdrawals/fee',
-                    ],
-                    'put': [
-                        'funding/fundings/{funding_id}',
-                        'trading/orders/{order_id}',
-                    ],
-                    'delete': [
-                        'funding/auto_offerings/{currency_id}',
-                        'funding/fundings/{funding_id}',
-                        'funding/loans/{loan_id}',
-                        'trading/orders/{order_id}',
-                        'trading/positions/{trading_pair_id}',
-                        'wallet/generic_withdrawals/{generic_withdrawal_id}',
-                        'wallet/withdrawal_addresses/{wallet_id}',
-                    ],
-                },
-            },
-            'fees': {
-                'trading': {
-                    'maker': 0.0,
-                    'taker': 0.0,
-                },
-            },
-            'precision': {
-                'amount': 8,
-                'price': 8,
-            },
-            'exceptions': {
-                'insufficient_balance': InsufficientFunds,
-                'invalid_order_size': InvalidOrder,
-                'invalid_nonce': InvalidNonce,
-                'unauthorized_scope': PermissionDenied,
-                'invalid_address': InvalidAddress,
-                'parameter_error': OrderNotFound,
-            },
-            'commonCurrencies': {
-                'SMT': 'SocialMedia.Market',
-                'MTN': 'Motion Token',
-            },
-        });
-    }
-
-    async fetchCurrencies (params = {}) {
-        const response = await this.publicGetMarketCurrencies (params);
-        const currencies = response['result']['currencies'];
-        const result = {};
-        for (let i = 0; i < currencies.length; i++) {
-            const currency = currencies[i];
-            const id = this.safeString (currency, 'currency');
-            const name = this.safeString (currency, 'name');
-            const code = this.safeCurrencyCode (id);
-            const minUnit = this.safeFloat (currency, 'min_unit');
-            result[code] = {
-                'id': id,
-                'code': code,
-                'name': name,
-                'active': true,
-                'fiat': false,
-                'precision': this.precisionFromString (currency['min_unit']),
-                'limits': {
-                    'amount': {
-                        'min': minUnit,
-                        'max': undefined,
-                    },
-                    'price': {
-                        'min': minUnit,
-                        'max': undefined,
-                    },
-                    'deposit': {
-                        'min': minUnit,
-                        'max': undefined,
-                    },
-                    'withdraw': {
-                        'min': minUnit,
-                        'max': undefined,
-                    },
-                },
-                'funding': {
-                    'withdraw': {
-                        'fee': this.safeFloat (currency, 'withdrawal_fee'),
-                    },
-                    'deposit': {
-                        'fee': this.safeFloat (currency, 'deposit_fee'),
-                    },
-                },
-                'info': currency,
-            };
-        }
-        return result;
-    }
-
-    async fetchMarkets (params = {}) {
-        const response = await this.publicGetMarketTradingPairs (params);
-        const markets = this.safeValue (response['result'], 'trading_pairs');
-        const result = [];
-        for (let i = 0; i < markets.length; i++) {
-            const market = markets[i];
-            const id = this.safeString (market, 'id');
-            const [ baseId, quoteId ] = id.split ('-');
-            const base = this.safeCurrencyCode (baseId);
-            const quote = this.safeCurrencyCode (quoteId);
-            const symbol = base + '/' + quote;
-            const precision = {
-                'amount': 8,
-                'price': this.precisionFromString (market['quote_increment']),
-            };
-            const active = this.safeValue (market, 'is_active', true);
-            result.push ({
-                'id': id,
-                'symbol': symbol,
-                'base': base,
-                'quote': quote,
-                'baseId': baseId,
-                'quoteId': quoteId,
-                'active': active,
-                'precision': precision,
-                'limits': {
-                    'amount': {
-                        'min': this.safeFloat (market, 'base_min_size'),
-                        'max': this.safeFloat (market, 'base_max_size'),
-                    },
-                    'price': {
-                        'min': undefined,
-                        'max': undefined,
-                    },
-                    'cost': {
-                        'min': undefined,
-                        'max': undefined,
-                    },
-                },
-                'info': market,
-            });
-        }
-        return result;
-    }
-
-    parseTicker (ticker, market = undefined) {
-        let symbol = undefined;
-        if (market === undefined) {
-            const marketId = this.safeString (ticker, 'trading_pair_id');
-            if (marketId in this.markets_by_id) {
-                market = this.markets_by_id[marketId];
-            } else {
-                const [ baseId, quoteId ] = marketId.split ('-');
-                const base = this.safeCurrencyCode (baseId);
-                const quote = this.safeCurrencyCode (quoteId);
-                symbol = base + '/' + quote;
-            }
-        }
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        const timestamp = this.safeInteger (ticker, 'timestamp');
-        const last = this.safeFloat (ticker, 'last_trade_price');
-        return {
-            'symbol': symbol,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'high': this.safeFloat (ticker, '24h_high'),
-            'low': this.safeFloat (ticker, '24h_low'),
-            'bid': this.safeFloat (ticker, 'highest_bid'),
-            'bidVolume': undefined,
-            'ask': this.safeFloat (ticker, 'lowest_ask'),
-            'askVolume': undefined,
-            'vwap': undefined,
-            'open': undefined,
-            'close': last,
-            'last': last,
-            'previousClose': undefined,
-            'change': this.safeFloat (ticker, 'percentChanged24hr'),
-            'percentage': undefined,
-            'average': undefined,
-            'baseVolume': this.safeFloat (ticker, '24h_volume'),
-            'quoteVolume': this.safeFloat (ticker, 'quote_volume'),
-            'info': ticker,
-        };
-    }
-
-    async fetchTicker (symbol, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'trading_pair_id': market['id'],
-        };
-        const response = await this.publicGetMarketTickersTradingPairId (this.extend (request, params));
-        const ticker = this.safeValue (response['result'], 'ticker');
-        return this.parseTicker (ticker, market);
-    }
-
-    async fetchTickers (symbols = undefined, params = {}) {
-        await this.loadMarkets ();
-        const response = await this.publicGetMarketTickers (params);
-        const tickers = this.safeValue (response['result'], 'tickers');
-        const result = [];
-        for (let i = 0; i < tickers.length; i++) {
-            result.push (this.parseTicker (tickers[i]));
-        }
-        return this.indexBy (result, 'symbol');
-    }
-
-    async fetchOrderBook (symbol, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'trading_pair_id': this.marketId (symbol),
-        };
-        if (limit !== undefined) {
-            request['limit'] = limit; // 100
-        }
-        const response = await this.publicGetMarketOrderbooksTradingPairId (this.extend (request, params));
-        return this.parseOrderBook (response['result']['orderbook'], undefined, 'bids', 'asks', 0, 2);
-    }
-
-    parseTrade (trade, market = undefined) {
-        let symbol = undefined;
-        if (market) {
-            symbol = market['symbol'];
-        }
-        const timestamp = this.safeInteger (trade, 'timestamp');
-        const price = this.safeFloat (trade, 'price');
-        const amount = this.safeFloat (trade, 'size');
-        let cost = undefined;
-        if (price !== undefined) {
-            if (amount !== undefined) {
-                cost = price * amount;
-            }
-        }
-        // you can't determine your side from maker/taker side and vice versa
-        // you can't determine if your order/trade was a maker or a taker based
-        // on just the side of your order/trade
-        // https://github.com/ccxt/ccxt/issues/4300
-        // let side = (trade['maker_side'] === 'bid') ? 'sell' : 'buy';
-        const side = undefined;
-        const id = this.safeString (trade, 'id');
-        return {
-            'info': trade,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': symbol,
-            'id': id,
-            'order': undefined,
-            'type': undefined,
-            'side': side,
-            'takerOrMaker': undefined,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-            'fee': undefined,
-        };
-    }
-
-    async fetchTrades (symbol, since = undefined, limit = 50, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'trading_pair_id': market['id'],
-            'limit': limit, // default 20, but that seems too little
-        };
-        const response = await this.publicGetMarketTradesTradingPairId (this.extend (request, params));
-        const trades = this.safeValue (response['result'], 'trades');
-        return this.parseTrades (trades, market, since, limit);
-    }
-
-    parseOHLCV (ohlcv, market = undefined, timeframe = '5m', since = undefined, limit = undefined) {
-        return [
-            // they say that timestamps are Unix Timestamps in seconds, but in fact those are milliseconds
-            ohlcv['timestamp'],
-            parseFloat (ohlcv['open']),
-            parseFloat (ohlcv['high']),
-            parseFloat (ohlcv['low']),
-            parseFloat (ohlcv['close']),
-            parseFloat (ohlcv['volume']),
-        ];
-    }
-
-    async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        //
-        // they say in their docs that end_time defaults to current server time
-        // but if you don't specify it, their range limits does not allow you to query anything
-        //
-        // they also say that start_time defaults to 0,
-        // but most calls fail if you do not specify any of end_time
-        //
-        // to make things worse, their docs say it should be a Unix Timestamp
-        // but with seconds it fails, so we set milliseconds (somehow it works that way)
-        //
-        const endTime = this.milliseconds ();
-        const request = {
-            'trading_pair_id': market['id'],
-            'timeframe': this.timeframes[timeframe],
-            'end_time': endTime,
-        };
-        if (since !== undefined) {
-            request['start_time'] = since;
-        }
-        const response = await this.publicGetChartCandlesTradingPairId (this.extend (request, params));
-        const ohlcv = this.safeValue (response['result'], 'candles');
-        return this.parseOHLCVs (ohlcv, market, timeframe, since, limit);
-    }
-
-    async fetchBalance (params = {}) {
-        await this.loadMarkets ();
-        const response = await this.privateGetWalletBalances (params);
-        const result = { 'info': response };
-        const balances = this.safeValue (response['result'], 'balances');
-        for (let i = 0; i < balances.length; i++) {
-            const balance = balances[i];
-            const currencyId = this.safeString (balance, 'currency');
-            const code = this.safeCurrencyCode (currencyId);
-            const account = this.account ();
-            account['used'] = this.safeFloat (balance, 'on_order');
-            account['total'] = this.safeFloat (balance, 'total');
-            result[code] = account;
-        }
-        return this.parseBalance (result);
-    }
-
-    parseOrderStatus (status) {
-        const statuses = {
-            'filled': 'closed',
-            'rejected': 'closed',
-            'partially_filled': 'open',
-            'pending_cancellation': 'open',
-            'pending_modification': 'open',
-            'open': 'open',
-            'new': 'open',
-            'queued': 'open',
-            'cancelled': 'canceled',
-            'triggered': 'triggered',
-        };
-        return this.safeString (statuses, status, status);
-    }
-
-    parseOrder (order, market = undefined) {
-        //
-        //     {
-        //         'completed_at': None,
-        //         'eq_price': '0',
-        //         'filled': '0',
-        //         'id': '88426800-beae-4407-b4a1-f65cef693542',
-        //         'price': '0.00000507',
-        //         'side': 'bid',
-        //         'size': '3503.6489',
-        //         'source': 'exchange',
-        //         'state': 'open',
-        //         'timestamp': 1535258403597,
-        //         'trading_pair_id': 'ACT-BTC',
-        //         'type': 'limit',
-        //     }
-        //
-        let symbol = undefined;
-        if (market === undefined) {
-            const marketId = this.safeString2 (order, 'trading_pair', 'trading_pair_id');
-            market = this.safeValue (this.markets_by_id, marketId);
-        }
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        const timestamp = this.safeInteger (order, 'timestamp');
-        const price = this.safeFloat (order, 'price');
-        const average = this.safeFloat (order, 'eq_price');
-        const amount = this.safeFloat (order, 'size');
-        const filled = this.safeFloat (order, 'filled');
-        let remaining = undefined;
-        let cost = undefined;
-        if (filled !== undefined && average !== undefined) {
-            cost = average * filled;
-        } else if (average !== undefined) {
-            cost = average * amount;
-        }
-        if (amount !== undefined) {
-            if (filled !== undefined) {
-                remaining = amount - filled;
-            }
-        }
-        const status = this.parseOrderStatus (this.safeString (order, 'state'));
-        let side = this.safeString (order, 'side');
-        if (side === 'bid') {
-            side = 'buy';
-        } else if (side === 'ask') {
-            side = 'sell';
-        }
-        return {
-            'id': this.safeString (order, 'id'),
-            'datetime': this.iso8601 (timestamp),
-            'timestamp': timestamp,
-            'lastTradeTimestamp': undefined,
-            'status': status,
-            'symbol': symbol,
-            'type': this.safeString (order, 'type'), // market, limit, stop, stop_limit, trailing_stop, fill_or_kill
-            'side': side,
-            'price': price,
-            'cost': cost,
-            'average': average,
-            'amount': amount,
-            'filled': filled,
-            'remaining': remaining,
-            'trades': undefined,
-            'fee': undefined,
-            'info': order,
-        };
-    }
-
-    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        side = (side === 'sell') ? 'ask' : 'bid';
-        const request = {
-            'trading_pair_id': market['id'],
-            'type': type, // market, limit, stop, stop_limit
-            'side': side,
-            'size': this.amountToPrecision (symbol, amount),
-        };
-        if (type !== 'market') {
-            request['price'] = this.priceToPrecision (symbol, price);
-        }
-        const response = await this.privatePostTradingOrders (this.extend (request, params));
-        const order = this.parseOrder (response['result']['order'], market);
-        const id = order['id'];
-        this.orders[id] = order;
-        return order;
-    }
-
-    async editOrder (id, symbol, type, side, amount, price, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'order_id': id,
-            'price': this.priceToPrecision (symbol, price),
-            'size': this.amountToPrecision (symbol, amount),
-        };
-        const response = await this.privatePutTradingOrdersOrderId (this.extend (request, params));
-        return this.parseOrder (this.extend (response, {
-            'id': id,
-        }));
-    }
-
-    async cancelOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'order_id': id,
-        };
-        const response = await this.privateDeleteTradingOrdersOrderId (this.extend (request, params));
-        return this.parseOrder (this.extend (response, {
-            'id': id,
-        }));
-    }
-
-    async fetchOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'order_id': id.toString (),
-        };
-        const response = await this.privateGetTradingOrdersOrderId (this.extend (request, params));
-        return this.parseOrder (response['result']['order']);
-    }
-
-    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const result = await this.privateGetTradingOrders (params);
-        const orders = this.parseOrders (result['result']['orders'], undefined, since, limit);
-        if (symbol !== undefined) {
-            return this.filterBySymbolSinceLimit (orders, symbol, since, limit);
-        }
-        return this.filterBySinceLimit (orders, since, limit);
-    }
-
-    async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {};
-        let market = undefined;
-        if (symbol !== undefined) {
-            market = this.market (symbol);
-            request['trading_pair_id'] = market['id'];
-        }
-        if (limit !== undefined) {
-            request['limit'] = limit; // default 50, max 100
-        }
-        const response = await this.privateGetTradingOrderHistory (this.extend (request, params));
-        const orders = this.parseOrders (response['result']['orders'], market, since, limit);
-        if (symbol !== undefined) {
-            return this.filterBySymbolSinceLimit (orders, symbol, since, limit);
-        }
-        return this.filterBySinceLimit (orders, since, limit);
-    }
-
-    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'order_id': id,
-        };
-        const response = await this.privateGetTradingOrdersOrderIdTrades (this.extend (request, params));
-        const market = (symbol === undefined) ? undefined : this.market (symbol);
-        return this.parseTrades (response['result']['trades'], market);
-    }
-
-    async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {};
-        if (symbol !== undefined) {
-            request['trading_pair_id'] = market['id'];
-        }
-        const response = await this.privateGetTradingTrades (this.extend (request, params));
-        return this.parseTrades (response['result']['trades'], market, since, limit);
-    }
-
-    async createDepositAddress (code, params = {}) {
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        // 'ledger_type' is required, see: https://cobinhood.github.io/api-public/#create-new-deposit-address
-        const ledgerType = this.safeString (params, 'ledger_type', 'exchange');
-        const request = {
-            'currency': currency['id'],
-            'ledger_type': ledgerType,
-        };
-        const response = await this.privatePostWalletDepositAddresses (this.extend (request, params));
-        const address = this.safeString (response['result']['deposit_address'], 'address');
-        const tag = this.safeString (response['result']['deposit_address'], 'memo');
-        this.checkAddress (address);
-        return {
-            'currency': code,
-            'address': address,
-            'tag': tag,
-            'info': response,
-        };
-    }
-
-    async fetchDepositAddress (code, params = {}) {
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        const request = {
-            'currency': currency['id'],
-        };
-        const response = await this.privateGetWalletDepositAddresses (this.extend (request, params));
-        //
-        //     { success:    true,
-        //        result: { deposit_addresses: [ {       address: "abcdefg",
-        //                                         blockchain_id: "eosio",
-        //                                            created_at:  1536768050235,
-        //                                              currency: "EOS",
-        //                                                  memo: "12345678",
-        //                                                  type: "exchange"      } ] } }
-        //
-        const addresses = this.safeValue (response['result'], 'deposit_addresses', []);
-        let address = undefined;
-        let tag = undefined;
-        if (addresses.length > 0) {
-            address = this.safeString (addresses[0], 'address');
-            tag = this.safeString2 (addresses[0], 'memo', 'tag');
-        }
-        this.checkAddress (address);
-        return {
-            'currency': code,
-            'address': address,
-            'tag': tag,
-            'info': response,
-        };
-    }
-
-    async withdraw (code, amount, address, tag = undefined, params = {}) {
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        const request = {
-            'currency': currency['id'],
-            'amount': amount,
-            'address': address,
-        };
-        if (tag !== undefined) {
-            request['memo'] = tag;
-        }
-        const response = await this.privatePostWalletWithdrawals (this.extend (request, params));
-        return {
-            'id': undefined,
-            'info': response,
-        };
-    }
-
-    async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        if (code === undefined) {
-            throw new ExchangeError (this.id + ' fetchDeposits() requires a currency code argument');
-        }
-        const currency = this.currency (code);
-        const request = {
-            'currency': currency['id'],
-        };
-        const response = await this.privateGetWalletDeposits (this.extend (request, params));
-        return this.parseTransactions (response['result']['deposits'], currency);
-    }
-
-    async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        if (code === undefined) {
-            throw new ExchangeError (this.id + ' fetchWithdrawals() requires a currency code argument');
-        }
-        const currency = this.currency (code);
-        const request = {
-            'currency': currency['id'],
-        };
-        const response = await this.privateGetWalletWithdrawals (this.extend (request, params));
-        return this.parseTransactions (response['result']['withdrawals'], currency);
-    }
-
-    parseTransactionStatus (status) {
-        const statuses = {
-            'tx_pending_two_factor_auth': 'pending',
-            'tx_pending_email_auth': 'pending',
-            'tx_pending_approval': 'pending',
-            'tx_approved': 'pending',
-            'tx_processing': 'pending',
-            'tx_pending': 'pending',
-            'tx_sent': 'pending',
-            'tx_cancelled': 'canceled',
-            'tx_timeout': 'failed',
-            'tx_invalid': 'failed',
-            'tx_rejected': 'failed',
-            'tx_confirmed': 'ok',
-        };
-        return this.safeString (statuses, status, status);
-    }
-
-    parseTransaction (transaction, currency = undefined) {
-        const timestamp = this.safeInteger (transaction, 'created_at');
-        const currencyId = this.safeString (transaction, 'currency');
-        const code = this.safeCurrencyCode (currencyId, currency);
-        let id = undefined;
-        const withdrawalId = this.safeString (transaction, 'withdrawal_id');
-        const depositId = this.safeString (transaction, 'deposit_id');
-        let type = undefined;
-        let address = undefined;
-        if (withdrawalId !== undefined) {
-            type = 'withdrawal';
-            id = withdrawalId;
-            address = this.safeString (transaction, 'to_address');
-        } else if (depositId !== undefined) {
-            type = 'deposit';
-            id = depositId;
-            address = this.safeString (transaction, 'from_address');
-        }
-        const additionalInfo = this.safeValue (transaction, 'additional_info', {});
-        const tag = this.safeString (additionalInfo, 'memo');
-        return {
-            'info': transaction,
-            'id': id,
-            'txid': this.safeString (transaction, 'txhash'),
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'address': address,
-            'tag': tag, // refix it properly
-            'type': type,
-            'amount': this.safeFloat (transaction, 'amount'),
-            'currency': code,
-            'status': this.parseTransactionStatus (transaction['status']),
-            'updated': undefined,
-            'fee': {
-                'cost': this.safeFloat (transaction, 'fee'),
-                'rate': undefined,
-            },
-        };
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = this.urls['api'] + '/' + this.version + '/' + this.implodeParams (path, params);
-        let query = this.omit (params, this.extractParams (path));
-        headers = {};
-        if (api === 'private') {
-            this.checkRequiredCredentials ();
-            // headers['device_id'] = this.apiKey;
-            headers['nonce'] = this.nonce ().toString ();
-            headers['Authorization'] = this.apiKey;
-        }
-        if (method === 'GET') {
-            query = this.urlencode (query);
-            if (query.length) {
-                url += '?' + query;
-            }
-        } else {
-            headers['Content-type'] = 'application/json; charset=UTF-8';
-            body = this.json (query);
-        }
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-
-    handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
-        if (code < 400 || code >= 600) {
-            return;
-        }
-        if (body[0] !== '{') {
-            throw new ExchangeError (this.id + ' ' + body);
-        }
-        const feedback = this.id + ' ' + this.json (response);
-        const errorCode = this.safeValue (response['error'], 'error_code');
-        if (method === 'DELETE' || method === 'GET') {
-            if (errorCode === 'parameter_error') {
-                if (url.indexOf ('trading/orders/') >= 0) {
-                    // Cobinhood returns vague "parameter_error" on fetchOrder() and cancelOrder() calls
-                    // for invalid order IDs as well as orders that are not "open"
-                    throw new InvalidOrder (feedback);
-                }
-            }
-        }
-        this.throwExactlyMatchedException (this.exceptions, errorCode, feedback);
-        throw new ExchangeError (feedback);
-    }
-
-    nonce () {
-        return this.milliseconds ();
-    }
-};
-
-},{"./base/Exchange":7,"./base/errors":9}],62:[function(require,module,exports){
+},{"./foxbit.js":85}],61:[function(require,module,exports){
 'use strict';
 
 // ----------------------------------------------------------------------------
@@ -36950,7 +38794,7 @@ module.exports = class coinbase extends Exchange {
 };
 
 
-},{"./base/Exchange":7,"./base/errors":9}],63:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],62:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -36983,7 +38827,7 @@ module.exports = class coinbaseprime extends coinbasepro {
     }
 };
 
-},{"./coinbasepro.js":64}],64:[function(require,module,exports){
+},{"./coinbasepro.js":63}],63:[function(require,module,exports){
 'use strict';
 
 // ----------------------------------------------------------------------------
@@ -37568,6 +39412,7 @@ module.exports = class coinbasepro extends Exchange {
         const side = this.safeString (order, 'side');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -37582,6 +39427,8 @@ module.exports = class coinbasepro extends Exchange {
             'filled': filled,
             'remaining': remaining,
             'fee': fee,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
@@ -37943,7 +39790,7 @@ module.exports = class coinbasepro extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],65:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],64:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -38138,6 +39985,7 @@ module.exports = class coincheck extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -38152,6 +40000,8 @@ module.exports = class coincheck extends Exchange {
             'cost': cost,
             'fee': undefined,
             'info': order,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
@@ -38375,7 +40225,7 @@ module.exports = class coincheck extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],66:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],65:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -38730,6 +40580,7 @@ module.exports = class coinegg extends Exchange {
         const id = this.safeString (order, 'id');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -38745,6 +40596,7 @@ module.exports = class coinegg extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': info,
+            'average': undefined,
         };
     }
 
@@ -38880,7 +40732,7 @@ module.exports = class coinegg extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],67:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],66:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -39347,6 +41199,7 @@ module.exports = class coinex extends Exchange {
         const side = this.safeString (order, 'type');
         return {
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -39607,7 +41460,7 @@ module.exports = class coinex extends Exchange {
         const code = this.safeCurrencyCode (currencyId, currency);
         const timestamp = this.safeTimestamp (transaction, 'create_time');
         const type = ('coin_withdraw_id' in transaction) ? 'withdraw' : 'deposit';
-        const status = this.parseTransactionStatus (this.safeString (transaction, 'status'), type);
+        const status = this.parseTransactionStatus (this.safeString (transaction, 'status'));
         const amount = this.safeFloat (transaction, 'amount');
         let feeCost = this.safeFloat (transaction, 'tx_fee');
         if (type === 'deposit') {
@@ -39794,7 +41647,7 @@ module.exports = class coinex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],68:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],67:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -40072,6 +41925,23 @@ module.exports = class coinfalcon extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "id":"8bdd79f4-8414-40a2-90c3-e9f4d6d1eef4"
+        //         "market":"IOT-BTC"
+        //         "price":"0.0000003"
+        //         "size":"4.0"
+        //         "size_filled":"3.0"
+        //         "fee":"0.0075"
+        //         "fee_currency_code":"iot"
+        //         "funds":"0.0"
+        //         "status":"canceled"
+        //         "order_type":"buy"
+        //         "post_only":false
+        //         "operation_type":"market_order"
+        //         "created_at":"2018-01-12T21:14:06.747828Z"
+        //     }
+        //
         if (market === undefined) {
             const marketId = this.safeString (order, 'market');
             if (marketId in this.markets_by_id) {
@@ -40105,6 +41975,7 @@ module.exports = class coinfalcon extends Exchange {
         const side = this.safeString (order, 'order_type');
         return {
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'status': status,
@@ -40119,6 +41990,8 @@ module.exports = class coinfalcon extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': order,
+            'lastTradeTimestamp': undefined,
+            'average': undefined,
         };
     }
 
@@ -40225,7 +42098,7 @@ module.exports = class coinfalcon extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],69:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],68:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -40287,7 +42160,6 @@ module.exports = class coinfloor extends Exchange {
             'markets': {
                 'BTC/GBP': { 'id': 'XBT/GBP', 'symbol': 'BTC/GBP', 'base': 'BTC', 'quote': 'GBP', 'baseId': 'XBT', 'quoteId': 'GBP', 'precision': { 'price': 0, 'amount': 4 }},
                 'BTC/EUR': { 'id': 'XBT/EUR', 'symbol': 'BTC/EUR', 'base': 'BTC', 'quote': 'EUR', 'baseId': 'XBT', 'quoteId': 'EUR', 'precision': { 'price': 0, 'amount': 4 }},
-                'ETH/GBP': { 'id': 'ETH/GBP', 'symbol': 'ETH/GBP', 'base': 'ETH', 'quote': 'GBP', 'baseId': 'ETH', 'quoteId': 'GBP', 'precision': { 'price': 0, 'amount': 4 }},
             },
             'exceptions': {
                 'exact': {
@@ -40674,6 +42546,7 @@ module.exports = class coinfloor extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -40687,6 +42560,8 @@ module.exports = class coinfloor extends Exchange {
             'remaining': undefined,
             'cost': cost,
             'fee': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
@@ -40746,7 +42621,7 @@ module.exports = class coinfloor extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],70:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],69:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -41095,7 +42970,7 @@ module.exports = class coingi extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],71:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],70:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -41268,6 +43143,9 @@ module.exports = class coinmarketcap extends Exchange {
                     'baseId': baseId,
                     'quoteId': quoteId,
                     'info': market,
+                    'active': undefined,
+                    'precision': this.precision,
+                    'limits': this.limits,
                 });
             }
         }
@@ -41426,13 +43304,13 @@ module.exports = class coinmarketcap extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],72:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],71:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError } = require ('./base/errors');
+const { ExchangeError, ArgumentsRequired, InvalidOrder, OrderNotFound, RateLimitExceeded, InsufficientFunds } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -41445,8 +43323,14 @@ module.exports = class coinmate extends Exchange {
             'rateLimit': 1000,
             'has': {
                 'CORS': true,
+                'fetchBalance': true,
+                'fetchOrders': true,
+                'fetchOrder': true,
                 'fetchMyTrades': true,
                 'fetchTransactions': true,
+                'fetchOpenOrders': true,
+                'createOrder': true,
+                'cancelOrder': true,
             },
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/27811229-c1efb510-606c-11e7-9a36-84ba2ce412d8.jpg',
@@ -41495,6 +43379,7 @@ module.exports = class coinmate extends Exchange {
                         'openOrders',
                         'order',
                         'orderHistory',
+                        'orderById',
                         'pusherAuth',
                         'redeemVoucher',
                         'replaceByBuyLimit',
@@ -41521,8 +43406,74 @@ module.exports = class coinmate extends Exchange {
             },
             'fees': {
                 'trading': {
-                    'maker': 0.05 / 100,
-                    'taker': 0.15 / 100,
+                    'tierBased': true,
+                    'percentage': true,
+                    'maker': 0.12 / 100,
+                    'taker': 0.25 / 100,
+                    'tiers': {
+                        'taker': [
+                            [0, 0.25 / 100],
+                            [10000, 0.23 / 100],
+                            [100000, 0.21 / 100],
+                            [250000, 0.20 / 100],
+                            [500000, 0.15 / 100],
+                            [1000000, 0.13 / 100],
+                            [3000000, 0.10 / 100],
+                            [15000000, 0.05 / 100],
+                        ],
+                        'maker': [
+                            [0, 0.12 / 100],
+                            [10000, 0.11 / 100],
+                            [1000000, 0.10 / 100],
+                            [250000, 0.08 / 100],
+                            [500000, 0.05 / 100],
+                            [1000000, 0.03 / 100],
+                            [3000000, 0.02 / 100],
+                            [15000000, 0],
+                        ],
+                    },
+                },
+                'promotional': {
+                    'trading': {
+                        'maker': 0.05 / 100,
+                        'taker': 0.15 / 100,
+                        'tiers': {
+                            'taker': [
+                                [0, 0.15 / 100],
+                                [10000, 0.14 / 100],
+                                [100000, 0.13 / 100],
+                                [250000, 0.12 / 100],
+                                [500000, 0.11 / 100],
+                                [1000000, 0.1 / 100],
+                                [3000000, 0.08 / 100],
+                                [15000000, 0.05 / 100],
+                            ],
+                            'maker': [
+                                [0, 0.05 / 100],
+                                [10000, 0.04 / 100],
+                                [1000000, 0.03 / 100],
+                                [250000, 0.02 / 100],
+                                [500000, 0],
+                                [1000000, 0],
+                                [3000000, 0],
+                                [15000000, 0],
+                            ],
+                        },
+                    },
+                },
+            },
+            'options': {
+                'promotionalMarkets': ['ETH/EUR', 'ETH/CZK', 'ETH/BTC', 'XRP/EUR', 'XRP/CZK', 'XRP/BTC', 'DASH/EUR', 'DASH/CZK', 'DASH/BTC', 'BCH/EUR', 'BCH/CZK', 'BCH/BTC'],
+            },
+            'exceptions': {
+                'exact': {
+                    'No order with given ID': OrderNotFound,
+                },
+                'broad': {
+                    'Not enough account balance available': InsufficientFunds,
+                    'Incorrect order ID': InvalidOrder,
+                    'Minimum Order Size ': InvalidOrder,
+                    'TOO MANY REQUESTS': RateLimitExceeded,
                 },
             },
         });
@@ -41559,6 +43510,12 @@ module.exports = class coinmate extends Exchange {
             const base = this.safeCurrencyCode (baseId);
             const quote = this.safeCurrencyCode (quoteId);
             const symbol = base + '/' + quote;
+            const promotionalMarkets = this.safeValue (this.options, 'promotionalMarkets', []);
+            let fees = this.safeValue (this.fees, 'trading');
+            if (this.inArray (symbol, promotionalMarkets)) {
+                const promotionalFees = this.safeValue (this.fees, 'promotional', {});
+                fees = this.safeValue (promotionalFees, 'trading', fees);
+            }
             result.push ({
                 'id': id,
                 'symbol': symbol,
@@ -41567,6 +43524,8 @@ module.exports = class coinmate extends Exchange {
                 'baseId': baseId,
                 'quoteId': quoteId,
                 'active': undefined,
+                'maker': fees['maker'],
+                'taker': fees['taker'],
                 'info': market,
                 'precision': {
                     'price': this.safeInteger (market, 'priceDecimals'),
@@ -41755,6 +43714,10 @@ module.exports = class coinmate extends Exchange {
         const request = {
             'limit': limit,
         };
+        if (symbol !== undefined) {
+            const market = this.market (symbol);
+            request['currencyPair'] = market['id'];
+        }
         if (since !== undefined) {
             request['timestampFrom'] = since;
         }
@@ -41878,6 +43841,148 @@ module.exports = class coinmate extends Exchange {
         return this.parseTrades (data, market, since, limit);
     }
 
+    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        const response = await this.privatePostOpenOrders (this.extend ({}, params));
+        const extension = { 'status': 'open' };
+        return this.parseOrders (response['data'], undefined, since, limit, extension);
+    }
+
+    async fetchOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchOrders requires a symbol argument');
+        }
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'currencyPair': market['id'],
+        };
+        // offset param that appears in other parts of the API doesn't appear to be supported here
+        if (limit !== undefined) {
+            request['limit'] = limit;
+        }
+        const response = await this.privatePostOrderHistory (this.extend (request, params));
+        return this.parseOrders (response['data'], market, since, limit);
+    }
+
+    parseOrderStatus (status) {
+        const statuses = {
+            'FILLED': 'closed',
+            'CANCELLED': 'canceled',
+            'PARTIALLY_FILLED': 'open',
+            'OPEN': 'open',
+        };
+        return this.safeString (statuses, status, status);
+    }
+
+    parseOrderType (type) {
+        const types = {
+            'LIMIT': 'limit',
+            'MARKET': 'market',
+        };
+        return this.safeString (types, type, type);
+    }
+
+    parseOrder (order, market = undefined) {
+        //
+        // limit sell
+        //
+        //     {
+        //         id: 781246605,
+        //         timestamp: 1584480015133,
+        //         trailingUpdatedTimestamp: null,
+        //         type: 'SELL',
+        //         currencyPair: 'ETH_BTC',
+        //         price: 0.0345,
+        //         amount: 0.01,
+        //         stopPrice: null,
+        //         originalStopPrice: null,
+        //         marketPriceAtLastUpdate: null,
+        //         marketPriceAtOrderCreation: null,
+        //         orderTradeType: 'LIMIT',
+        //         hidden: false,
+        //         trailing: false,
+        //         clientOrderId: null
+        //     }
+        //
+        // limit buy
+        //
+        //     {
+        //         id: 67527001,
+        //         timestamp: 1517931722613,
+        //         trailingUpdatedTimestamp: null,
+        //         type: 'BUY',
+        //         price: 5897.24,
+        //         remainingAmount: 0.002367,
+        //         originalAmount: 0.1,
+        //         stopPrice: null,
+        //         originalStopPrice: null,
+        //         marketPriceAtLastUpdate: null,
+        //         marketPriceAtOrderCreation: null,
+        //         status: 'CANCELLED',
+        //         orderTradeType: 'LIMIT',
+        //         hidden: false,
+        //         avgPrice: null,
+        //         trailing: false,
+        //     }
+        //
+        const id = this.safeString (order, 'id');
+        const timestamp = this.safeInteger (order, 'timestamp');
+        const side = this.safeStringLower (order, 'type');
+        const price = this.safeFloat (order, 'price');
+        const amount = this.safeFloat2 (order, 'originalAmount', 'amount');
+        const remaining = this.safeFloat (order, 'remainingAmount', amount);
+        let status = this.parseOrderStatus (this.safeString (order, 'status'));
+        const type = this.parseOrderType (this.safeString (order, 'orderTradeType'));
+        let filled = undefined;
+        let cost = undefined;
+        if ((amount !== undefined) && (remaining !== undefined)) {
+            filled = Math.min (amount - remaining, 0);
+            if (remaining === 0) {
+                status = 'closed';
+            }
+            if (price !== undefined) {
+                cost = filled * price;
+            }
+        }
+        const average = this.safeFloat (order, 'avgPrice');
+        let symbol = undefined;
+        const marketId = this.safeString (order, 'currencyPair');
+        if (marketId !== undefined) {
+            if (marketId in this.markets_by_id) {
+                market = this.markets_by_id[marketId];
+            } else {
+                const [ baseId, quoteId ] = marketId.split ('_');
+                const base = this.safeCurrencyCode (baseId);
+                const quote = this.safeCurrencyCode (quoteId);
+                symbol = base + '/' + quote;
+            }
+        }
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+        }
+        const clientOrderId = this.safeString (order, 'clientOrderId');
+        return {
+            'id': id,
+            'clientOrderId': clientOrderId,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'lastTradeTimestamp': undefined,
+            'symbol': symbol,
+            'type': type,
+            'side': side,
+            'price': price,
+            'amount': amount,
+            'cost': cost,
+            'average': average,
+            'filled': filled,
+            'remaining': remaining,
+            'status': status,
+            'trades': undefined,
+            'info': order,
+            'fee': undefined,
+        };
+    }
+
     async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
         await this.loadMarkets ();
         let method = 'privatePost' + this.capitalize (side);
@@ -41886,25 +43991,45 @@ module.exports = class coinmate extends Exchange {
         };
         if (type === 'market') {
             if (side === 'buy') {
-                request['total'] = amount; // amount in fiat
+                request['total'] = this.amountToPrecision (symbol, amount); // amount in fiat
             } else {
-                request['amount'] = amount; // amount in fiat
+                request['amount'] = this.amountToPrecision (symbol, amount); // amount in fiat
             }
             method += 'Instant';
         } else {
-            request['amount'] = amount; // amount in crypto
-            request['price'] = price;
+            request['amount'] = this.amountToPrecision (symbol, amount); // amount in crypto
+            request['price'] = this.priceToPrecision (symbol, price);
             method += this.capitalize (type);
         }
         const response = await this[method] (this.extend (request, params));
+        const id = this.safeString (response, 'data');
         return {
             'info': response,
-            'id': response['data'].toString (),
+            'id': id,
         };
     }
 
+    async fetchOrder (id, symbol = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            'orderId': id,
+        };
+        let market = undefined;
+        if (symbol) {
+            market = this.market (symbol);
+        }
+        const response = await this.privatePostOrderById (this.extend (request, params));
+        const data = this.safeValue (response, 'data');
+        return this.parseOrder (data, market);
+    }
+
     async cancelOrder (id, symbol = undefined, params = {}) {
-        return await this.privatePostCancelOrder ({ 'orderId': id });
+        //   {"error":false,"errorMessage":null,"data":{"success":true,"remainingAmount":0.01}}
+        const request = { 'orderId': id };
+        const response = await this.privatePostCancelOrderWithInfo (this.extend (request, params));
+        return {
+            'info': response,
+        };
     }
 
     nonce () {
@@ -41935,18 +44060,32 @@ module.exports = class coinmate extends Exchange {
         return { 'url': url, 'method': method, 'body': body, 'headers': headers };
     }
 
-    async request (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        const response = await this.fetch2 (path, api, method, params, headers, body);
-        if ('error' in response) {
-            if (response['error']) {
-                throw new ExchangeError (this.id + ' ' + this.json (response));
+    handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
+        if (response !== undefined) {
+            if ('error' in response) {
+                // {"error":true,"errorMessage":"Minimum Order Size 0.01 ETH","data":null}
+                if (response['error']) {
+                    const message = this.safeString (response, 'errorMessage');
+                    const feedback = this.id + ' ' + message;
+                    this.throwExactlyMatchedException (this.exceptions['exact'], message, feedback);
+                    this.throwBroadlyMatchedException (this.exceptions['broad'], message, feedback);
+                    throw new ExchangeError (this.id + ' ' + this.json (response));
+                }
             }
         }
-        return response;
+        if (code > 400) {
+            if (body) {
+                const feedback = this.id + ' ' + body;
+                this.throwExactlyMatchedException (this.exceptions['exact'], body, feedback);
+                this.throwBroadlyMatchedException (this.exceptions['broad'], body, feedback);
+                throw new ExchangeError (feedback); // unknown message
+            }
+            throw new ExchangeError (this.id + ' ' + body);
+        }
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],73:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],72:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -42254,6 +44393,8 @@ module.exports = class coinone extends Exchange {
             'remaining': amount,
             'status': 'open',
             'fee': undefined,
+            'clientOrderId': undefined,
+            'trades': undefined,
         };
         this.orders[id] = order;
         return order;
@@ -42305,6 +44446,17 @@ module.exports = class coinone extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "index": "0",
+        //         "orderId": "68665943-1eb5-4e4b-9d76-845fc54f5489",
+        //         "timestamp": "1449037367",
+        //         "price": "444000.0",
+        //         "qty": "0.3456",
+        //         "type": "ask",
+        //         "feeRate": "-0.0015"
+        //     }
+        //
         const info = this.safeValue (order, 'info');
         const id = this.safeStringUpper (info, 'orderId');
         const timestamp = this.safeTimestamp (info, 'timestamp');
@@ -42347,6 +44499,7 @@ module.exports = class coinone extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -42360,6 +44513,8 @@ module.exports = class coinone extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
@@ -42457,7 +44612,7 @@ module.exports = class coinone extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],74:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],73:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -42630,7 +44785,7 @@ module.exports = class coinspot extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],75:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],74:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -42702,7 +44857,7 @@ module.exports = class coolcoin extends coinegg {
     }
 };
 
-},{"./coinegg.js":66}],76:[function(require,module,exports){
+},{"./coinegg.js":65}],75:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -43538,6 +45693,7 @@ module.exports = class coss extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -43646,7 +45802,7 @@ module.exports = class coss extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],77:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],76:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -43769,6 +45925,7 @@ module.exports = class crex24 extends Exchange {
             },
             'commonCurrencies': {
                 'YOYO': 'YOYOW',
+                'BULL': 'BuySell',
                 'BCC': 'BCH',
             },
             // exchange-specific options
@@ -44354,6 +46511,7 @@ module.exports = class crex24 extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -44948,14 +47106,14 @@ module.exports = class crex24 extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],78:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],77:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
 const { TICK_SIZE } = require ('./base/functions/number');
-const { AuthenticationError, ExchangeError, ArgumentsRequired, PermissionDenied, InvalidOrder, OrderNotFound, DDoSProtection, NotSupported, ExchangeNotAvailable, InsufficientFunds } = require ('./base/errors');
+const { AuthenticationError, ExchangeError, ArgumentsRequired, PermissionDenied, InvalidOrder, OrderNotFound, DDoSProtection, NotSupported, ExchangeNotAvailable, InsufficientFunds, BadRequest, InvalidAddress, OnMaintenance } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -44965,18 +47123,46 @@ module.exports = class deribit extends Exchange {
             'id': 'deribit',
             'name': 'Deribit',
             'countries': [ 'NL' ], // Netherlands
-            'version': 'v1',
+            'version': 'v2',
             'userAgent': undefined,
-            'rateLimit': 2000,
+            'rateLimit': 500,
             'has': {
                 'CORS': true,
                 'editOrder': true,
+                'fetchBalance': true,
                 'fetchOrder': true,
                 'fetchOrders': false,
                 'fetchOpenOrders': true,
                 'fetchClosedOrders': true,
                 'fetchMyTrades': true,
-                'fetchTickers': false,
+                'fetchTickers': true,
+                'fetchOHLCV': true,
+                'fetchDepositAddress': true,
+                'createDepositAddress': true,
+                'fetchOrderTrades': true,
+                'createOrder': true,
+                'cancelOrder': true,
+                'cancelAllOrders': true,
+                'withdraw': true,
+                'fetchTime': true,
+                'fetchStatus': true,
+                'fetchDeposits': true,
+                'fetchWithdrawals': true,
+                'fetchTransactions': false,
+            },
+            'timeframes': {
+                '1m': '1',
+                '3m': '3',
+                '5m': '5',
+                '10m': '10',
+                '15m': '15',
+                '30m': '30',
+                '1h': '60',
+                '2h': '120',
+                '3h': '180',
+                '6h': '360',
+                '12h': '720',
+                '1d': '1D',
             },
             'urls': {
                 'test': 'https://test.deribit.com',
@@ -44984,7 +47170,7 @@ module.exports = class deribit extends Exchange {
                 'api': 'https://www.deribit.com',
                 'www': 'https://www.deribit.com',
                 'doc': [
-                    'https://docs.deribit.com',
+                    'https://docs.deribit.com/v2',
                     'https://github.com/deribit',
                 ],
                 'fees': 'https://www.deribit.com/pages/information/fees',
@@ -44993,193 +47179,461 @@ module.exports = class deribit extends Exchange {
             'api': {
                 'public': {
                     'get': [
-                        'ping',
+                        // Authentication
+                        'auth',
+                        'exchange_token',
+                        'fork_token',
+                        // Session management
+                        'set_heartbeat',
+                        'disable_heartbeat',
+                        // Supporting
+                        'get_time',
+                        'hello',
                         'test',
-                        'getinstruments',
-                        'index',
-                        'getcurrencies',
-                        'getorderbook',
-                        'getlasttrades',
-                        'getsummary',
-                        'stats',
-                        'getannouncments',
+                        // Subscription management
+                        'subscribe',
+                        'unsubscribe',
+                        // Account management
+                        'get_announcements',
+                        // Market data
+                        'get_book_summary_by_currency',
+                        'get_book_summary_by_instrument',
+                        'get_contract_size',
+                        'get_currencies',
+                        'get_funding_chart_data',
+                        'get_funding_rate_history',
+                        'get_funding_rate_value',
+                        'get_historical_volatility',
+                        'get_index',
+                        'get_instruments',
+                        'get_last_settlements_by_currency',
+                        'get_last_settlements_by_instrument',
+                        'get_last_trades_by_currency',
+                        'get_last_trades_by_currency_and_time',
+                        'get_last_trades_by_instrument',
+                        'get_last_trades_by_instrument_and_time',
+                        'get_order_book',
+                        'get_trade_volumes',
+                        'get_tradingview_chart_data',
+                        'ticker',
                     ],
                 },
                 'private': {
                     'get': [
-                        'account',
-                        'getopenorders',
-                        'positions',
-                        'orderhistory',
-                        'orderstate',
-                        'tradehistory',
-                        'newannouncements',
-                    ],
-                    'post': [
+                        // Authentication
+                        'logout',
+                        // Session management
+                        'enable_cancel_on_disconnect',
+                        'disable_cancel_on_disconnect',
+                        'get_cancel_on_disconnect',
+                        // Subscription management
+                        'subscribe',
+                        'unsubscribe',
+                        // Account management
+                        'change_api_key_name',
+                        'change_scope_in_api_key',
+                        'change_subaccount_name',
+                        'create_api_key',
+                        'create_subaccount',
+                        'disable_api_key',
+                        'disable_tfa_for_subaccount',
+                        'enable_api_key',
+                        'get_account_summary',
+                        'get_email_language',
+                        'get_new_announcements',
+                        'get_position',
+                        'get_positions',
+                        'get_subaccounts',
+                        'list_api_keys',
+                        'remove_api_key',
+                        'reset_api_key',
+                        'set_announcement_as_read',
+                        'set_api_key_as_default',
+                        'set_email_for_subaccount',
+                        'set_email_language',
+                        'set_password_for_subaccount',
+                        'toggle_notifications_from_subaccount',
+                        'toggle_subaccount_login',
+                        // Block Trade
+                        'execute_block_trade',
+                        'get_block_trade',
+                        'get_last_block_trades_by_currency',
+                        'invalidate_block_trade_signature',
+                        'verify_block_trade',
+                        // Trading
                         'buy',
                         'sell',
                         'edit',
                         'cancel',
-                        'cancelall',
+                        'cancel_all',
+                        'cancel_all_by_currency',
+                        'cancel_all_by_instrument',
+                        'cancel_by_label',
+                        'close_position',
+                        'get_margins',
+                        'get_open_orders_by_currency',
+                        'get_open_orders_by_instrument',
+                        'get_order_history_by_currency',
+                        'get_order_history_by_instrument',
+                        'get_order_margin_by_ids',
+                        'get_order_state',
+                        'get_stop_order_history',
+                        'get_user_trades_by_currency',
+                        'get_user_trades_by_currency_and_time',
+                        'get_user_trades_by_instrument',
+                        'get_user_trades_by_instrument_and_time',
+                        'get_user_trades_by_order',
+                        'get_settlement_history_by_instrument',
+                        'get_settlement_history_by_currency',
+                        // Wallet
+                        'cancel_transfer_by_id',
+                        'cancel_withdrawal',
+                        'create_deposit_address',
+                        'get_current_deposit_address',
+                        'get_deposits',
+                        'get_transfers',
+                        'get_withdrawals',
+                        'submit_transfer_to_subaccount',
+                        'submit_transfer_to_user',
+                        'withdraw',
                     ],
                 },
             },
             'exceptions': {
-                // 0 or absent Success, No error
-                '9999': PermissionDenied,   // "api_not_enabled" User didn't enable API for the Account
-                '10000': AuthenticationError,  // "authorization_required" Authorization issue, invalid or absent signature etc
-                '10001': ExchangeError,     // "error" Some general failure, no public information available
-                '10002': InvalidOrder,      // "qty_too_low" Order quantity is too low
-                '10003': InvalidOrder,      // "order_overlap" Rejection, order overlap is found and self-trading is not enabled
-                '10004': OrderNotFound,     // "order_not_found" Attempt to operate with order that can't be found by specified id
-                '10005': InvalidOrder,      // "price_too_low <Limit>" Price is too low, <Limit> defines current limit for the operation
-                '10006': InvalidOrder,      // "price_too_low4idx <Limit>" Price is too low for current index, <Limit> defines current bottom limit for the operation
-                '10007': InvalidOrder, // "price_too_high <Limit>" Price is too high, <Limit> defines current up limit for the operation
-                '10008': InvalidOrder, // "price_too_high4idx <Limit>" Price is too high for current index, <Limit> defines current up limit for the operation
-                '10009': InsufficientFunds, // "not_enough_funds" Account has not enough funds for the operation
-                '10010': OrderNotFound, // "already_closed" Attempt of doing something with closed order
-                '10011': InvalidOrder, // "price_not_allowed" This price is not allowed for some reason
-                '10012': InvalidOrder, // "book_closed" Operation for instrument which order book had been closed
-                '10013': PermissionDenied, // "pme_max_total_open_orders <Limit>" Total limit of open orders has been exceeded, it is applicable for PME users
-                '10014': PermissionDenied, // "pme_max_future_open_orders <Limit>" Limit of count of futures' open orders has been exceeded, it is applicable for PME users
-                '10015': PermissionDenied, // "pme_max_option_open_orders <Limit>" Limit of count of options' open orders has been exceeded, it is applicable for PME users
-                '10016': PermissionDenied, // "pme_max_future_open_orders_size <Limit>" Limit of size for futures has been exceeded, it is applicable for PME users
-                '10017': PermissionDenied, // "pme_max_option_open_orders_size <Limit>" Limit of size for options has been exceeded, it is applicable for PME users
-                '10019': PermissionDenied, // "locked_by_admin" Trading is temporary locked by admin
-                '10020': ExchangeError, // "invalid_or_unsupported_instrument" Instrument name is not valid
-                '10022': InvalidOrder, // "invalid_quantity" quantity was not recognized as a valid number
-                '10023': InvalidOrder, // "invalid_price" price was not recognized as a valid number
-                '10024': InvalidOrder, // "invalid_max_show" max_show parameter was not recognized as a valid number
-                '10025': InvalidOrder, // "invalid_order_id" Order id is missing or its format was not recognized as valid
-                '10026': InvalidOrder, // "price_precision_exceeded" Extra precision of the price is not supported
-                '10027': InvalidOrder, // "non_integer_contract_amount" Futures contract amount was not recognized as integer
-                '10028': DDoSProtection, // "too_many_requests" Allowed request rate has been exceeded
-                '10029': OrderNotFound, // "not_owner_of_order" Attempt to operate with not own order
-                '10030': ExchangeError, // "must_be_websocket_request" REST request where Websocket is expected
-                '10031': ExchangeError, // "invalid_args_for_instrument" Some of arguments are not recognized as valid
-                '10032': InvalidOrder, // "whole_cost_too_low" Total cost is too low
-                '10033': NotSupported, // "not_implemented" Method is not implemented yet
-                '10034': InvalidOrder, // "stop_price_too_high" Stop price is too high
-                '10035': InvalidOrder, // "stop_price_too_low" Stop price is too low
-                '11035': InvalidOrder, // "no_more_stops <Limit>" Allowed amount of stop orders has been exceeded
-                '11036': InvalidOrder, // "invalid_stoppx_for_index_or_last" Invalid StopPx (too high or too low) as to current index or market
-                '11037': InvalidOrder, // "outdated_instrument_for_IV_order" Instrument already not available for trading
-                '11038': InvalidOrder, // "no_adv_for_futures" Advanced orders are not available for futures
-                '11039': InvalidOrder, // "no_adv_postonly" Advanced post-only orders are not supported yet
-                '11040': InvalidOrder, // "impv_not_in_range 0..499%" Implied volatility is out of allowed range
-                '11041': InvalidOrder, // "not_adv_order" Advanced order properties can't be set if the order is not advanced
-                '11042': PermissionDenied, // "permission_denied" Permission for the operation has been denied
-                '11044': OrderNotFound, // "not_open_order" Attempt to do open order operations with the not open order
-                '11045': ExchangeError, // "invalid_event" Event name has not been recognized
-                '11046': ExchangeError, // "outdated_instrument" At several minutes to instrument expiration, corresponding advanced implied volatility orders are not allowed
-                '11047': ExchangeError, // "unsupported_arg_combination" The specified combination of arguments is not supported
-                '11048': ExchangeError, // "not_on_this_server" The requested operation is not available on this server.
-                '11050': ExchangeError, // "invalid_request" Request has not been parsed properly
-                '11051': ExchangeNotAvailable, // "system_maintenance" System is under maintenance
-                '11030': ExchangeError, // "other_reject <Reason>" Some rejects which are not considered as very often, more info may be specified in <Reason>
-                '11031': ExchangeError, // "other_error <Error>" Some errors which are not considered as very often, more info may be specified in <Error>
+                // 0 or absent Success, No error.
+                '9999': PermissionDenied, // 'api_not_enabled' User didn't enable API for the Account.
+                '10000': AuthenticationError, // 'authorization_required' Authorization issue, invalid or absent signature etc.
+                '10001': ExchangeError, // 'error' Some general failure, no public information available.
+                '10002': InvalidOrder, // 'qty_too_low' Order quantity is too low.
+                '10003': InvalidOrder, // 'order_overlap' Rejection, order overlap is found and self-trading is not enabled.
+                '10004': OrderNotFound, // 'order_not_found' Attempt to operate with order that can't be found by specified id.
+                '10005': InvalidOrder, // 'price_too_low <Limit>' Price is too low, <Limit> defines current limit for the operation.
+                '10006': InvalidOrder, // 'price_too_low4idx <Limit>' Price is too low for current index, <Limit> defines current bottom limit for the operation.
+                '10007': InvalidOrder, // 'price_too_high <Limit>' Price is too high, <Limit> defines current up limit for the operation.
+                '10008': InvalidOrder, // 'price_too_high4idx <Limit>' Price is too high for current index, <Limit> defines current up limit for the operation.
+                '10009': InsufficientFunds, // 'not_enough_funds' Account has not enough funds for the operation.
+                '10010': OrderNotFound, // 'already_closed' Attempt of doing something with closed order.
+                '10011': InvalidOrder, // 'price_not_allowed' This price is not allowed for some reason.
+                '10012': InvalidOrder, // 'book_closed' Operation for instrument which order book had been closed.
+                '10013': PermissionDenied, // 'pme_max_total_open_orders <Limit>' Total limit of open orders has been exceeded, it is applicable for PME users.
+                '10014': PermissionDenied, // 'pme_max_future_open_orders <Limit>' Limit of count of futures' open orders has been exceeded, it is applicable for PME users.
+                '10015': PermissionDenied, // 'pme_max_option_open_orders <Limit>' Limit of count of options' open orders has been exceeded, it is applicable for PME users.
+                '10016': PermissionDenied, // 'pme_max_future_open_orders_size <Limit>' Limit of size for futures has been exceeded, it is applicable for PME users.
+                '10017': PermissionDenied, // 'pme_max_option_open_orders_size <Limit>' Limit of size for options has been exceeded, it is applicable for PME users.
+                '10018': PermissionDenied, // 'non_pme_max_future_position_size <Limit>' Limit of size for futures has been exceeded, it is applicable for non-PME users.
+                '10019': PermissionDenied, // 'locked_by_admin' Trading is temporary locked by admin.
+                '10020': ExchangeError, // 'invalid_or_unsupported_instrument' Instrument name is not valid.
+                '10021': InvalidOrder, // 'invalid_amount' Amount is not valid.
+                '10022': InvalidOrder, // 'invalid_quantity' quantity was not recognized as a valid number (for API v1).
+                '10023': InvalidOrder, // 'invalid_price' price was not recognized as a valid number.
+                '10024': InvalidOrder, // 'invalid_max_show' max_show parameter was not recognized as a valid number.
+                '10025': InvalidOrder, // 'invalid_order_id' Order id is missing or its format was not recognized as valid.
+                '10026': InvalidOrder, // 'price_precision_exceeded' Extra precision of the price is not supported.
+                '10027': InvalidOrder, // 'non_integer_contract_amount' Futures contract amount was not recognized as integer.
+                '10028': DDoSProtection, // 'too_many_requests' Allowed request rate has been exceeded.
+                '10029': OrderNotFound, // 'not_owner_of_order' Attempt to operate with not own order.
+                '10030': ExchangeError, // 'must_be_websocket_request' REST request where Websocket is expected.
+                '10031': ExchangeError, // 'invalid_args_for_instrument' Some of arguments are not recognized as valid.
+                '10032': InvalidOrder, // 'whole_cost_too_low' Total cost is too low.
+                '10033': NotSupported, // 'not_implemented' Method is not implemented yet.
+                '10034': InvalidOrder, // 'stop_price_too_high' Stop price is too high.
+                '10035': InvalidOrder, // 'stop_price_too_low' Stop price is too low.
+                '10036': InvalidOrder, // 'invalid_max_show_amount' Max Show Amount is not valid.
+                '10040': ExchangeNotAvailable, // 'retry' Request can't be processed right now and should be retried.
+                '10041': OnMaintenance, // 'settlement_in_progress' Settlement is in progress. Every day at settlement time for several seconds, the system calculates user profits and updates balances. That time trading is paused for several seconds till the calculation is completed.
+                '10043': InvalidOrder, // 'price_wrong_tick' Price has to be rounded to a certain tick size.
+                '10044': InvalidOrder, // 'stop_price_wrong_tick' Stop Price has to be rounded to a certain tick size.
+                '10045': InvalidOrder, // 'can_not_cancel_liquidation_order' Liquidation order can't be canceled.
+                '10046': InvalidOrder, // 'can_not_edit_liquidation_order' Liquidation order can't be edited.
+                '10047': DDoSProtection, // 'matching_engine_queue_full' Reached limit of pending Matching Engine requests for user.
+                '10048': ExchangeError, // 'not_on_this_server' The requested operation is not available on this server.
+                '11008': InvalidOrder, // 'already_filled' This request is not allowed in regards to the filled order.
+                '11029': BadRequest, // 'invalid_arguments' Some invalid input has been detected.
+                '11030': ExchangeError, // 'other_reject <Reason>' Some rejects which are not considered as very often, more info may be specified in <Reason>.
+                '11031': ExchangeError, // 'other_error <Error>' Some errors which are not considered as very often, more info may be specified in <Error>.
+                '11035': DDoSProtection, // 'no_more_stops <Limit>' Allowed amount of stop orders has been exceeded.
+                '11036': InvalidOrder, // 'invalid_stoppx_for_index_or_last' Invalid StopPx (too high or too low) as to current index or market.
+                '11037': BadRequest, // 'outdated_instrument_for_IV_order' Instrument already not available for trading.
+                '11038': InvalidOrder, // 'no_adv_for_futures' Advanced orders are not available for futures.
+                '11039': InvalidOrder, // 'no_adv_postonly' Advanced post-only orders are not supported yet.
+                '11041': InvalidOrder, // 'not_adv_order' Advanced order properties can't be set if the order is not advanced.
+                '11042': PermissionDenied, // 'permission_denied' Permission for the operation has been denied.
+                '11043': BadRequest, // 'bad_argument' Bad argument has been passed.
+                '11044': InvalidOrder, // 'not_open_order' Attempt to do open order operations with the not open order.
+                '11045': BadRequest, // 'invalid_event' Event name has not been recognized.
+                '11046': BadRequest, // 'outdated_instrument' At several minutes to instrument expiration, corresponding advanced implied volatility orders are not allowed.
+                '11047': BadRequest, // 'unsupported_arg_combination' The specified combination of arguments is not supported.
+                '11048': ExchangeError, // 'wrong_max_show_for_option' Wrong Max Show for options.
+                '11049': BadRequest, // 'bad_arguments' Several bad arguments have been passed.
+                '11050': BadRequest, // 'bad_request' Request has not been parsed properly.
+                '11051': OnMaintenance, // 'system_maintenance' System is under maintenance.
+                '11052': ExchangeError, // 'subscribe_error_unsubscribed' Subscription error. However, subscription may fail without this error, please check list of subscribed channels returned, as some channels can be not subscribed due to wrong input or lack of permissions.
+                '11053': ExchangeError, // 'transfer_not_found' Specified transfer is not found.
+                '11090': InvalidAddress, // 'invalid_addr' Invalid address.
+                '11091': InvalidAddress, // 'invalid_transfer_address' Invalid addres for the transfer.
+                '11092': InvalidAddress, // 'address_already_exist' The address already exists.
+                '11093': DDoSProtection, // 'max_addr_count_exceeded' Limit of allowed addresses has been reached.
+                '11094': ExchangeError, // 'internal_server_error' Some unhandled error on server. Please report to admin. The details of the request will help to locate the problem.
+                '11095': ExchangeError, // 'disabled_deposit_address_creation' Deposit address creation has been disabled by admin.
+                '11096': ExchangeError, // 'address_belongs_to_user' Withdrawal instead of transfer.
+                '12000': AuthenticationError, // 'bad_tfa' Wrong TFA code
+                '12001': DDoSProtection, // 'too_many_subaccounts' Limit of subbacounts is reached.
+                '12002': ExchangeError, // 'wrong_subaccount_name' The input is not allowed as name of subaccount.
+                '12998': AuthenticationError, // 'tfa_over_limit' The number of failed TFA attempts is limited.
+                '12003': AuthenticationError, // 'login_over_limit' The number of failed login attempts is limited.
+                '12004': AuthenticationError, // 'registration_over_limit' The number of registration requests is limited.
+                '12005': AuthenticationError, // 'country_is_banned' The country is banned (possibly via IP check).
+                '12100': ExchangeError, // 'transfer_not_allowed' Transfer is not allowed. Possible wrong direction or other mistake.
+                '12999': AuthenticationError, // 'tfa_used' TFA code is correct but it is already used. Please, use next code.
+                '13000': AuthenticationError, // 'invalid_login' Login name is invalid (not allowed or it contains wrong characters).
+                '13001': AuthenticationError, // 'account_not_activated' Account must be activated.
+                '13002': PermissionDenied, // 'account_blocked' Account is blocked by admin.
+                '13003': AuthenticationError, // 'tfa_required' This action requires TFA authentication.
+                '13004': AuthenticationError, // 'invalid_credentials' Invalid credentials has been used.
+                '13005': AuthenticationError, // 'pwd_match_error' Password confirmation error.
+                '13006': AuthenticationError, // 'security_error' Invalid Security Code.
+                '13007': AuthenticationError, // 'user_not_found' User's security code has been changed or wrong.
+                '13008': ExchangeError, // 'request_failed' Request failed because of invalid input or internal failure.
+                '13009': AuthenticationError, // 'unauthorized' Wrong or expired authorization token or bad signature. For example, please check scope of the token, 'connection' scope can't be reused for other connections.
+                '13010': BadRequest, // 'value_required' Invalid input, missing value.
+                '13011': BadRequest, // 'value_too_short' Input is too short.
+                '13012': PermissionDenied, // 'unavailable_in_subaccount' Subaccount restrictions.
+                '13013': BadRequest, // 'invalid_phone_number' Unsupported or invalid phone number.
+                '13014': BadRequest, // 'cannot_send_sms' SMS sending failed -- phone number is wrong.
+                '13015': BadRequest, // 'invalid_sms_code' Invalid SMS code.
+                '13016': BadRequest, // 'invalid_input' Invalid input.
+                '13017': ExchangeError, // 'subscription_failed' Subscription hailed, invalid subscription parameters.
+                '13018': ExchangeError, // 'invalid_content_type' Invalid content type of the request.
+                '13019': ExchangeError, // 'orderbook_closed' Closed, expired order book.
+                '13020': ExchangeError, // 'not_found' Instrument is not found, invalid instrument name.
+                '13021': PermissionDenied, // 'forbidden' Not enough permissions to execute the request, forbidden.
+                '13025': ExchangeError, // 'method_switched_off_by_admin' API method temporarily switched off by administrator.
+                '-32602': BadRequest, // 'Invalid params' see JSON-RPC spec.
+                '-32601': BadRequest, // 'Method not found' see JSON-RPC spec.
+                '-32700': BadRequest, // 'Parse error' see JSON-RPC spec.
+                '-32000': BadRequest, // 'Missing params' see JSON-RPC spec.
             },
             'precisionMode': TICK_SIZE,
             'options': {
-                'fetchTickerQuotes': true,
+                'code': 'BTC',
+                'fetchBalance': {
+                    'code': 'BTC',
+                },
             },
         });
     }
 
+    async fetchTime (params = {}) {
+        const response = await this.publicGetGetTime (params);
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: 1583922446019,
+        //         usIn: 1583922446019955,
+        //         usOut: 1583922446019956,
+        //         usDiff: 1,
+        //         testnet: false
+        //     }
+        //
+        return this.safeInteger (response, 'result');
+    }
+
+    codeFromOptions (methodName) {
+        const defaultCode = this.safeValue (this.options, 'code', 'BTC');
+        const options = this.safeValue (this.options, methodName, {});
+        return this.safeValue (options, 'code', defaultCode);
+    }
+
+    async fetchStatus (params = {}) {
+        const request = {
+            // 'expected_result': false, // true will trigger an error for testing purposes
+        };
+        await this.publicGetTest (this.extend (request, params));
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: { version: '1.2.26' },
+        //         usIn: 1583922623964485,
+        //         usOut: 1583922623964487,
+        //         usDiff: 2,
+        //         testnet: false
+        //     }
+        //
+        this.status = this.extend (this.status, {
+            'status': 'ok',
+            'updated': this.milliseconds (),
+        });
+        return this.status;
+    }
+
     async fetchMarkets (params = {}) {
-        const response = await this.publicGetGetinstruments (params);
-        const markets = this.safeValue (response, 'result');
+        const currenciesResponse = await this.publicGetGetCurrencies (params);
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: [
+        //             {
+        //                 withdrawal_priorities: [
+        //                     { value: 0.15, name: 'very_low' },
+        //                     { value: 1.5, name: 'very_high' },
+        //                 ],
+        //                 withdrawal_fee: 0.0005,
+        //                 min_withdrawal_fee: 0.0005,
+        //                 min_confirmations: 1,
+        //                 fee_precision: 4,
+        //                 currency_long: 'Bitcoin',
+        //                 currency: 'BTC',
+        //                 coin_type: 'BITCOIN'
+        //             }
+        //         ],
+        //         usIn: 1583761588590479,
+        //         usOut: 1583761588590544,
+        //         usDiff: 65,
+        //         testnet: false
+        //     }
+        //
+        const currenciesResult = this.safeValue (currenciesResponse, 'result', []);
         const result = [];
-        for (let i = 0; i < markets.length; i++) {
-            const market = markets[i];
-            const id = this.safeString (market, 'instrumentName');
-            const baseId = this.safeString (market, 'baseCurrency');
-            const quoteId = this.safeString (market, 'currency');
-            const base = this.safeCurrencyCode (baseId);
-            const quote = this.safeCurrencyCode (quoteId);
-            const type = this.safeString (market, 'kind');
-            const future = (type === 'future');
-            const option = (type === 'option');
-            const active = this.safeValue (market, 'isActive');
-            const precision = {
-                'amount': this.safeFloat (market, 'minTradeAmount'),
-                'price': this.safeFloat (market, 'tickSize'),
+        for (let i = 0; i < currenciesResult.length; i++) {
+            const currencyId = this.safeString (currenciesResult[i], 'currency');
+            const request = {
+                'currency': currencyId,
             };
-            result.push ({
-                'id': id,
-                'symbol': id,
-                'base': base,
-                'quote': quote,
-                'active': active,
-                'precision': precision,
-                'limits': {
-                    'amount': {
-                        'min': this.safeFloat (market, 'minTradeAmount'),
-                        'max': undefined,
+            const instrumentsResponse = await this.publicGetGetInstruments (this.extend (request, params));
+            //
+            //     {
+            //         jsonrpc: '2.0',
+            //         result: [
+            //             {
+            //                 tick_size: 0.0005,
+            //                 taker_commission: 0.0004,
+            //                 strike: 300,
+            //                 settlement_period: 'week',
+            //                 quote_currency: 'USD',
+            //                 option_type: 'call',
+            //                 min_trade_amount: 1,
+            //                 maker_commission: 0.0004,
+            //                 kind: 'option',
+            //                 is_active: true,
+            //                 instrument_name: 'ETH-13MAR20-300-C',
+            //                 expiration_timestamp: 1584086400000,
+            //                 creation_timestamp: 1582790403000,
+            //                 contract_size: 1,
+            //                 base_currency: 'ETH'
+            //             },
+            //         ],
+            //         usIn: 1583761889500586,
+            //         usOut: 1583761889505066,
+            //         usDiff: 4480,
+            //         testnet: false
+            //     }
+            //
+            const instrumentsResult = this.safeValue (instrumentsResponse, 'result', []);
+            for (let k = 0; k < instrumentsResult.length; k++) {
+                const market = instrumentsResult[k];
+                const id = this.safeString (market, 'instrument_name');
+                const baseId = this.safeString (market, 'base_currency');
+                const quoteId = this.safeString (market, 'quote_currency');
+                const base = this.safeCurrencyCode (baseId);
+                const quote = this.safeCurrencyCode (quoteId);
+                const type = this.safeString (market, 'kind');
+                const future = (type === 'future');
+                const option = (type === 'option');
+                const active = this.safeValue (market, 'is_active');
+                const minTradeAmount = this.safeFloat (market, 'min_trade_amount');
+                const tickSize = this.safeFloat (market, 'tick_size');
+                const precision = {
+                    'amount': minTradeAmount,
+                    'price': tickSize,
+                };
+                result.push ({
+                    'id': id,
+                    'symbol': id,
+                    'base': base,
+                    'quote': quote,
+                    'active': active,
+                    'precision': precision,
+                    'taker': this.safeFloat (market, 'taker_commission'),
+                    'maker': this.safeFloat (market, 'maker_commission'),
+                    'limits': {
+                        'amount': {
+                            'min': minTradeAmount,
+                            'max': undefined,
+                        },
+                        'price': {
+                            'min': tickSize,
+                            'max': undefined,
+                        },
+                        'cost': {
+                            'min': undefined,
+                            'max': undefined,
+                        },
                     },
-                    'price': {
-                        'min': this.safeFloat (market, 'tickSize'),
-                        'max': undefined,
-                    },
-                    'cost': {
-                        'min': undefined,
-                        'max': undefined,
-                    },
-                },
-                'type': type,
-                'spot': false,
-                'future': future,
-                'option': option,
-                'info': market,
-            });
+                    'type': type,
+                    'spot': false,
+                    'future': future,
+                    'option': option,
+                    'info': market,
+                });
+            }
         }
         return result;
     }
 
     async fetchBalance (params = {}) {
         await this.loadMarkets ();
-        const response = await this.privateGetAccount (params);
+        const code = this.codeFromOptions ('fetchBalance');
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        const response = await this.privateGetGetAccountSummary (this.extend (request, params));
         //
         //     {
-        //         "usOut":1569048827943520,
-        //         "usIn":1569048827943020,
-        //         "usDiff":500,
-        //         "testnet":false,
-        //         "success":true,
-        //         "result":{
-        //             "equity":2e-9,
-        //             "maintenanceMargin":0.0,
-        //             "initialMargin":0.0,
-        //             "availableFunds":0.0,
-        //             "balance":0.0,
-        //             "marginBalance":0.0,
-        //             "SUPL":0.0,
-        //             "SRPL":0.0,
-        //             "PNL":0.0,
-        //             "optionsPNL":0.0,
-        //             "optionsSUPL":0.0,
-        //             "optionsSRPL":0.0,
-        //             "optionsD":0.0,
-        //             "optionsG":0.0,
-        //             "optionsV":0.0,
-        //             "optionsTh":0.0,
-        //             "futuresPNL":0.0,
-        //             "futuresSUPL":0.0,
-        //             "futuresSRPL":0.0,
-        //             "deltaTotal":0.0,
-        //             "sessionFunding":0.0,
-        //             "depositAddress":"13tUtNsJSZa1F5GeCmwBywVrymHpZispzw",
-        //             "currency":"BTC"
+        //         jsonrpc: '2.0',
+        //         result: {
+        //             total_pl: 0,
+        //             session_upl: 0,
+        //             session_rpl: 0,
+        //             session_funding: 0,
+        //             portfolio_margining_enabled: false,
+        //             options_vega: 0,
+        //             options_theta: 0,
+        //             options_session_upl: 0,
+        //             options_session_rpl: 0,
+        //             options_pl: 0,
+        //             options_gamma: 0,
+        //             options_delta: 0,
+        //             margin_balance: 0.00062359,
+        //             maintenance_margin: 0,
+        //             limits: {
+        //                 non_matching_engine_burst: 300,
+        //                 non_matching_engine: 200,
+        //                 matching_engine_burst: 20,
+        //                 matching_engine: 2
+        //             },
+        //             initial_margin: 0,
+        //             futures_session_upl: 0,
+        //             futures_session_rpl: 0,
+        //             futures_pl: 0,
+        //             equity: 0.00062359,
+        //             deposit_address: '13tUtNsJSZa1F5GeCmwBywVrymHpZispzw',
+        //             delta_total: 0,
+        //             currency: 'BTC',
+        //             balance: 0.00062359,
+        //             available_withdrawal_funds: 0.00062359,
+        //             available_funds: 0.00062359
         //         },
-        //         "message":""
+        //         usIn: 1583775838115975,
+        //         usOut: 1583775838116520,
+        //         usDiff: 545,
+        //         testnet: false
         //     }
         //
         const result = {
             'info': response,
         };
         const balance = this.safeValue (response, 'result', {});
-        const currencyId = this.safeString (balance, 'currency');
-        const code = this.safeCurrencyCode (currencyId);
         const account = this.account ();
         account['free'] = this.safeFloat (balance, 'availableFunds');
         account['used'] = this.safeFloat (balance, 'maintenanceMargin');
@@ -45188,15 +47642,63 @@ module.exports = class deribit extends Exchange {
         return this.parseBalance (result);
     }
 
+    async createDepositAddress (code, params = {}) {
+        await this.loadMarkets ();
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        const response = await this.privateGetCreateDepositAddress (this.extend (request, params));
+        //
+        //     {
+        //         'jsonrpc': '2.0',
+        //         'id': 7538,
+        //         'result': {
+        //             'address': '2N8udZGBc1hLRCFsU9kGwMPpmYUwMFTuCwB',
+        //             'creation_timestamp': 1550575165170,
+        //             'currency': 'BTC',
+        //             'type': 'deposit'
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const address = this.safeString (result, 'address');
+        this.checkAddress (address);
+        return {
+            'currency': code,
+            'address': address,
+            'tag': undefined,
+            'info': response,
+        };
+    }
+
     async fetchDepositAddress (code, params = {}) {
         await this.loadMarkets ();
         const currency = this.currency (code);
         const request = {
             'currency': currency['id'],
         };
-        const response = await this.privateGetAccount (this.extend (request, params));
+        const response = await this.privateGetGetCurrentDepositAddress (this.extend (request, params));
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: {
+        //             type: 'deposit',
+        //             status: 'ready',
+        //             requires_confirmation: true,
+        //             currency: 'BTC',
+        //             creation_timestamp: 1514694684651,
+        //             address: '13tUtNsJSZa1F5GeCmwBywVrymHpZispzw'
+        //         },
+        //         usIn: 1583785137274288,
+        //         usOut: 1583785137274454,
+        //         usDiff: 166,
+        //         testnet: false
+        //     }
+        //
         const result = this.safeValue (response, 'result', {});
-        const address = this.safeString (result, 'depositAddress');
+        const address = this.safeString (result, 'address');
+        this.checkAddress (address);
         return {
             'currency': code,
             'address': address,
@@ -45206,47 +47708,73 @@ module.exports = class deribit extends Exchange {
     }
 
     parseTicker (ticker, market = undefined) {
+        //
+        // fetchTicker /public/ticker
         //
         //     {
-        //         "currentFunding":0.0,
-        //         "funding8h":0.0000017213784611422821,
-        //         "instrumentName":"BTC-PERPETUAL",
-        //         "openInterest":7600223,
-        //         "openInterestAmount":76002230,
-        //         "high":7665.5,
-        //         "low":7450.0,
-        //         "volume":12964792.0,
-        //         "volumeUsd":129647920,
-        //         "volumeBtc":17214.63595316,
-        //         "last":7520.5,
-        //         "bidPrice":7520.0,
-        //         "askPrice":7520.5,
-        //         "midPrice":7520.25,
-        //         "estDelPrice":"",
-        //         "markPrice":7521.0,
-        //         "created":"2019-12-09 15:17:00 GMT"
+        //         timestamp: 1583778859480,
+        //         stats: { volume: 60627.57263769, low: 7631.5, high: 8311.5 },
+        //         state: 'open',
+        //         settlement_price: 7903.21,
+        //         open_interest: 111543850,
+        //         min_price: 7634,
+        //         max_price: 7866.51,
+        //         mark_price: 7750.02,
+        //         last_price: 7750.5,
+        //         instrument_name: 'BTC-PERPETUAL',
+        //         index_price: 7748.01,
+        //         funding_8h: 0.0000026,
+        //         current_funding: 0,
+        //         best_bid_price: 7750,
+        //         best_bid_amount: 19470,
+        //         best_ask_price: 7750.5,
+        //         best_ask_amount: 343280
         //     }
         //
-        const timestamp = this.safeInteger (ticker, 'created');
-        let symbol = undefined;
-        const marketId = this.safeString (ticker, 'instrumentName');
+        // fetchTicker /public/get_book_summary_by_instrument
+        // fetchTickers /public/get_book_summary_by_currency
+        //
+        //     {
+        //         volume: 124.1,
+        //         underlying_price: 7856.445926872601,
+        //         underlying_index: 'SYN.BTC-10MAR20',
+        //         quote_currency: 'USD',
+        //         open_interest: 121.8,
+        //         mid_price: 0.01975,
+        //         mark_price: 0.01984559,
+        //         low: 0.0095,
+        //         last: 0.0205,
+        //         interest_rate: 0,
+        //         instrument_name: 'BTC-10MAR20-7750-C',
+        //         high: 0.0295,
+        //         estimated_delivery_price: 7856.29,
+        //         creation_timestamp: 1583783678366,
+        //         bid_price: 0.0185,
+        //         base_currency: 'BTC',
+        //         ask_price: 0.021
+        //     },
+        //
+        const timestamp = this.safeInteger2 (ticker, 'timestamp', 'creation_timestamp');
+        const marketId = this.safeString (ticker, 'instrument_name');
+        let symbol = marketId;
         if (marketId in this.markets_by_id) {
             market = this.markets_by_id[marketId];
         }
         if ((symbol === undefined) && (market !== undefined)) {
             symbol = market['symbol'];
         }
-        const last = this.safeFloat (ticker, 'last');
+        const last = this.safeFloat2 (ticker, 'last_price', 'last');
+        const stats = this.safeValue (ticker, 'stats', ticker);
         return {
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
-            'high': this.safeFloat (ticker, 'high'),
-            'low': this.safeFloat (ticker, 'low'),
-            'bid': this.safeFloat (ticker, 'bidPrice'),
-            'bidVolume': undefined,
-            'ask': this.safeFloat (ticker, 'askPrice'),
-            'askVolume': undefined,
+            'high': this.safeFloat2 (stats, 'high', 'max_price'),
+            'low': this.safeFloat2 (stats, 'low', 'min_price'),
+            'bid': this.safeFloat2 (ticker, 'best_bid_price', 'bid_price'),
+            'bidVolume': this.safeFloat (ticker, 'best_bid_amount'),
+            'ask': this.safeFloat2 (ticker, 'best_ask_price', 'ask_price'),
+            'askVolume': this.safeFloat (ticker, 'best_ask_amount'),
             'vwap': undefined,
             'open': undefined,
             'close': last,
@@ -45256,7 +47784,7 @@ module.exports = class deribit extends Exchange {
             'percentage': undefined,
             'average': undefined,
             'baseVolume': undefined,
-            'quoteVolume': this.safeFloat (ticker, 'volume'),
+            'quoteVolume': this.safeFloat (stats, 'volume'),
             'info': ticker,
         };
     }
@@ -45265,39 +47793,136 @@ module.exports = class deribit extends Exchange {
         await this.loadMarkets ();
         const market = this.market (symbol);
         const request = {
-            'instrument': market['id'],
+            'instrument_name': market['id'],
         };
-        const response = await this.publicGetGetsummary (this.extend (request, params));
+        const response = await this.publicGetTicker (this.extend (request, params));
         //
         //     {
-        //         "usOut":1575904620528163,
-        //         "usIn":1575904620528129,
-        //         "usDiff":34,
-        //         "testnet":false,
-        //         "success":true,
-        //         "result": {
-        //             "currentFunding":0.0,
-        //             "funding8h":0.0000017213784611422821,
-        //             "instrumentName":"BTC-PERPETUAL",
-        //             "openInterest":7600223,
-        //             "openInterestAmount":76002230,
-        //             "high":7665.5,
-        //             "low":7450.0,
-        //             "volume":12964792.0,
-        //             "volumeUsd":129647920,
-        //             "volumeBtc":17214.63595316,
-        //             "last":7520.5,
-        //             "bidPrice":7520.0,
-        //             "askPrice":7520.5,
-        //             "midPrice":7520.25,
-        //             "estDelPrice":"",
-        //             "markPrice":7521.0,
-        //             "created":"2019-12-09 15:17:00 GMT"
+        //         jsonrpc: '2.0',
+        //         result: {
+        //             timestamp: 1583778859480,
+        //             stats: { volume: 60627.57263769, low: 7631.5, high: 8311.5 },
+        //             state: 'open',
+        //             settlement_price: 7903.21,
+        //             open_interest: 111543850,
+        //             min_price: 7634,
+        //             max_price: 7866.51,
+        //             mark_price: 7750.02,
+        //             last_price: 7750.5,
+        //             instrument_name: 'BTC-PERPETUAL',
+        //             index_price: 7748.01,
+        //             funding_8h: 0.0000026,
+        //             current_funding: 0,
+        //             best_bid_price: 7750,
+        //             best_bid_amount: 19470,
+        //             best_ask_price: 7750.5,
+        //             best_ask_amount: 343280
         //         },
-        //         "message":""
+        //         usIn: 1583778859483941,
+        //         usOut: 1583778859484075,
+        //         usDiff: 134,
+        //         testnet: false
         //     }
         //
-        return this.parseTicker (response['result'], market);
+        const result = this.safeValue (response, 'result');
+        return this.parseTicker (result, market);
+    }
+
+    async fetchTickers (symbols = undefined, params = {}) {
+        await this.loadMarkets ();
+        const code = this.codeFromOptions ('fetchTickers');
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        const response = await this.publicGetGetBookSummaryByCurrency (this.extend (request, params));
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: [
+        //             {
+        //                 volume: 124.1,
+        //                 underlying_price: 7856.445926872601,
+        //                 underlying_index: 'SYN.BTC-10MAR20',
+        //                 quote_currency: 'USD',
+        //                 open_interest: 121.8,
+        //                 mid_price: 0.01975,
+        //                 mark_price: 0.01984559,
+        //                 low: 0.0095,
+        //                 last: 0.0205,
+        //                 interest_rate: 0,
+        //                 instrument_name: 'BTC-10MAR20-7750-C',
+        //                 high: 0.0295,
+        //                 estimated_delivery_price: 7856.29,
+        //                 creation_timestamp: 1583783678366,
+        //                 bid_price: 0.0185,
+        //                 base_currency: 'BTC',
+        //                 ask_price: 0.021
+        //             },
+        //         ],
+        //         usIn: 1583783678361966,
+        //         usOut: 1583783678372069,
+        //         usDiff: 10103,
+        //         testnet: false
+        //     }
+        //
+        const result = this.safeValue (response, 'result', []);
+        const tickers = {};
+        for (let i = 0; i < result.length; i++) {
+            const ticker = this.parseTicker (result[i]);
+            const symbol = ticker['symbol'];
+            tickers[symbol] = ticker;
+        }
+        return this.filterByArray (tickers, 'symbol', symbols);
+    }
+
+    async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'instrument_name': market['id'],
+            'resolution': this.timeframes[timeframe],
+        };
+        const duration = this.parseTimeframe (timeframe);
+        const now = this.milliseconds ();
+        if (since === undefined) {
+            if (limit === undefined) {
+                throw new ArgumentsRequired (this.id + ' fetchOHLCV requires a since argument or a limit argument');
+            } else {
+                request['start_timestamp'] = now - (limit - 1) * duration * 1000;
+                request['end_timestamp'] = now;
+            }
+        } else {
+            request['start_timestamp'] = since;
+            if (limit === undefined) {
+                request['end_timestamp'] = now;
+            } else {
+                request['end_timestamp'] = this.sum (since, limit * duration * 1000);
+            }
+        }
+        const response = await this.publicGetGetTradingviewChartData (this.extend (request, params));
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: {
+        //             volume: [ 3.6680847969999992, 22.682721123, 3.011587939, 0 ],
+        //             ticks: [ 1583916960000, 1583917020000, 1583917080000, 1583917140000 ],
+        //             status: 'ok',
+        //             open: [ 7834, 7839, 7833.5, 7833 ],
+        //             low: [ 7834, 7833.5, 7832.5, 7833 ],
+        //             high: [ 7839.5, 7839, 7833.5, 7833 ],
+        //             cost: [ 28740, 177740, 23590, 0 ],
+        //             close: [ 7839.5, 7833.5, 7833, 7833 ]
+        //         },
+        //         usIn: 1583917166709801,
+        //         usOut: 1583917166710175,
+        //         usDiff: 374,
+        //         testnet: false
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const ohlcvs = this.convertTradingViewToOHLCV (result, 'ticks', 'open', 'high', 'low', 'close', 'volume', true);
+        return this.parseOHLCVs (ohlcvs, market, timeframe, since, limit);
     }
 
     parseTrade (trade, market = undefined) {
@@ -45305,59 +47930,72 @@ module.exports = class deribit extends Exchange {
         // fetchTrades (public)
         //
         //     {
-        //         "tradeId":23197559,
-        //         "instrument":"BTC-28JUN19",
-        //         "timeStamp":1559643011379,
-        //         "tradeSeq":1997200,
-        //         "quantity":2,
-        //         "amount":20.0,
-        //         "price":8010.0,
-        //         "direction":"sell",
-        //         "tickDirection":2,
-        //         "indexPrice":7969.01
+        //         'trade_seq': 39201926,
+        //         'trade_id':' 64135724',
+        //         'timestamp': 1583174775400,
+        //         'tick_direction': 1,
+        //         'price': 8865.0,
+        //         'instrument_name': 'BTC-PERPETUAL',
+        //         'index_price': 8863.31,
+        //         'direction': 'buy',
+        //         'amount': 10.0
         //     }
         //
-        // fetchMyTrades (private)
+        // fetchMyTrades, fetchOrderTrades (private)
         //
         //     {
-        //         "quantity":54,
-        //         "amount":540.0,
-        //         "tradeId":23087297,
-        //         "instrument":"BTC-PERPETUAL",
-        //         "timeStamp":1559604178803,
-        //         "tradeSeq":8265011,
-        //         "price":8213.0,
-        //         "side":"sell",
-        //         "orderId":12373631800,
-        //         "matchingId":0,
-        //         "liquidity":"T",
-        //         "fee":0.000049312,
-        //         "feeCurrency":"BTC",
-        //         "tickDirection":3,
-        //         "indexPrice":8251.94,
-        //         "selfTrade":false
+        //         "trade_seq": 3,
+        //         "trade_id": "ETH-34066",
+        //         "timestamp": 1550219814585,
+        //         "tick_direction": 1,
+        //         "state": "open",
+        //         "self_trade": false,
+        //         "reduce_only": false,
+        //         "price": 0.04,
+        //         "post_only": false,
+        //         "order_type": "limit",
+        //         "order_id": "ETH-334607",
+        //         "matching_id": null,
+        //         "liquidity": "M",
+        //         "iv": 56.83,
+        //         "instrument_name": "ETH-22FEB19-120-C",
+        //         "index_price": 121.37,
+        //         "fee_currency": "ETH",
+        //         "fee": 0.0011,
+        //         "direction": "buy",
+        //         "amount": 11
         //     }
         //
-        const id = this.safeString (trade, 'tradeId');
-        const orderId = this.safeString (trade, 'orderId');
+        const id = this.safeString (trade, 'trade_id');
         let symbol = undefined;
-        if (market !== undefined) {
+        const marketId = this.safeString (trade, 'instrument_name');
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
             symbol = market['symbol'];
         }
-        const timestamp = this.safeInteger (trade, 'timeStamp');
-        const side = this.safeString2 (trade, 'side', 'direction');
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+        }
+        const timestamp = this.safeInteger (trade, 'timestamp');
+        const side = this.safeString (trade, 'direction');
         const price = this.safeFloat (trade, 'price');
-        const amount = this.safeFloat (trade, 'quantity');
+        const amount = this.safeFloat (trade, 'amount');
         let cost = undefined;
         if (amount !== undefined) {
             if (price !== undefined) {
                 cost = amount * price;
             }
         }
-        let fee = undefined;
+        const liquidity = this.safeString (trade, 'liquidity');
+        let takerOrMaker = undefined;
+        if (liquidity !== undefined) {
+            // M = maker, T = taker, MT = both
+            takerOrMaker = (liquidity === 'M') ? 'maker' : 'taker';
+        }
         const feeCost = this.safeFloat (trade, 'fee');
+        let fee = undefined;
         if (feeCost !== undefined) {
-            const feeCurrencyId = this.safeString (trade, 'feeCurrency');
+            const feeCurrencyId = this.safeString (trade, 'fee_currency');
             const feeCurrencyCode = this.safeCurrencyCode (feeCurrencyId);
             fee = {
                 'cost': feeCost,
@@ -45370,10 +48008,10 @@ module.exports = class deribit extends Exchange {
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'symbol': symbol,
-            'order': orderId,
-            'type': undefined,
+            'order': this.safeString (trade, 'order_id'),
+            'type': this.safeString (trade, 'order_type'),
             'side': side,
-            'takerOrMaker': undefined,
+            'takerOrMaker': takerOrMaker,
             'price': price,
             'amount': amount,
             'cost': cost,
@@ -45385,54 +48023,102 @@ module.exports = class deribit extends Exchange {
         await this.loadMarkets ();
         const market = this.market (symbol);
         const request = {
-            'instrument': market['id'],
+            'instrument_name': market['id'],
+            'include_old': true,
         };
-        if (limit !== undefined) {
-            request['limit'] = limit;
-        } else {
-            request['limit'] = 10000;
+        const method = (since === undefined) ? 'publicGetGetLastTradesByInstrument' : 'publicGetGetLastTradesByInstrumentAndTime';
+        if (since !== undefined) {
+            request['start_timestamp'] = since;
         }
-        const response = await this.publicGetGetlasttrades (this.extend (request, params));
+        if (limit !== undefined) {
+            request['count'] = limit; // default 10
+        }
+        const response = await this[method] (this.extend (request, params));
         //
         //     {
-        //         "usOut":1559643108984527,
-        //         "usIn":1559643108984470,
-        //         "usDiff":57,
-        //         "testnet":false,
-        //         "success":true,
-        //         "result": [
-        //             {
-        //                 "tradeId":23197559,
-        //                 "instrument":"BTC-28JUN19",
-        //                 "timeStamp":1559643011379,
-        //                 "tradeSeq":1997200,
-        //                 "quantity":2,
-        //                 "amount":20.0,
-        //                 "price":8010.0,
-        //                 "direction":"sell",
-        //                 "tickDirection":2,
-        //                 "indexPrice":7969.01
-        //             }
-        //         ],
-        //         "message":""
+        //         'jsonrpc': '2.0',
+        //         'result': {
+        //             'trades': [
+        //                 {
+        //                     'trade_seq': 39201926,
+        //                     'trade_id':' 64135724',
+        //                     'timestamp': 1583174775400,
+        //                     'tick_direction': 1,
+        //                     'price': 8865.0,
+        //                     'instrument_name': 'BTC-PERPETUAL',
+        //                     'index_price': 8863.31,
+        //                     'direction': 'buy',
+        //                     'amount': 10.0
+        //                 },
+        //             ],
+        //             'has_more': true,
+        //         },
+        //         'usIn': 1583779594843931,
+        //         'usOut': 1583779594844446,
+        //         'usDiff': 515,
+        //         'testnet': false
         //     }
         //
-        const result = this.safeValue (response, 'result', []);
-        return this.parseTrades (result, market, since, limit);
+        const result = this.safeValue (response, 'result', {});
+        const trades = this.safeValue (result, 'trades', []);
+        return this.parseTrades (trades, market, since, limit);
     }
 
     async fetchOrderBook (symbol, limit = undefined, params = {}) {
         await this.loadMarkets ();
         const market = this.market (symbol);
         const request = {
-            'instrument': market['id'],
+            'instrument_name': market['id'],
         };
-        const response = await this.publicGetGetorderbook (this.extend (request, params));
-        const timestamp = this.safeInteger (response, 'usOut') / 1000;
-        const orderbook = this.parseOrderBook (response['result'], timestamp, 'bids', 'asks', 'price', 'quantity');
-        return this.extend (orderbook, {
-            'nonce': this.safeInteger (response, 'tstamp'),
-        });
+        if (limit !== undefined) {
+            request['depth'] = limit;
+        }
+        const response = await this.publicGetGetOrderBook (this.extend (request, params));
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: {
+        //             timestamp: 1583781354740,
+        //             stats: { volume: 61249.66735634, low: 7631.5, high: 8311.5 },
+        //             state: 'open',
+        //             settlement_price: 7903.21,
+        //             open_interest: 111536690,
+        //             min_price: 7695.13,
+        //             max_price: 7929.49,
+        //             mark_price: 7813.06,
+        //             last_price: 7814.5,
+        //             instrument_name: 'BTC-PERPETUAL',
+        //             index_price: 7810.12,
+        //             funding_8h: 0.0000031,
+        //             current_funding: 0,
+        //             change_id: 17538025952,
+        //             bids: [
+        //                 [7814, 351820],
+        //                 [7813.5, 207490],
+        //                 [7813, 32160],
+        //             ],
+        //             best_bid_price: 7814,
+        //             best_bid_amount: 351820,
+        //             best_ask_price: 7814.5,
+        //             best_ask_amount: 11880,
+        //             asks: [
+        //                 [7814.5, 11880],
+        //                 [7815, 18100],
+        //                 [7815.5, 2640],
+        //             ],
+        //         },
+        //         usIn: 1583781354745804,
+        //         usOut: 1583781354745932,
+        //         usDiff: 128,
+        //         testnet: false
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const timestamp = this.safeInteger (result, 'timestamp');
+        const nonce = this.safeInteger (result, 'change_id');
+        const orderbook = this.parseOrderBook (result, timestamp);
+        orderbook['nonce'] = nonce;
+        return orderbook;
     }
 
     parseOrderStatus (status) {
@@ -45440,48 +48126,51 @@ module.exports = class deribit extends Exchange {
             'open': 'open',
             'cancelled': 'canceled',
             'filled': 'closed',
+            'rejected': 'rejected',
+            // 'untriggered': 'open',
         };
         return this.safeString (statuses, status, status);
     }
 
     parseOrder (order, market = undefined) {
+        //
+        // createOrder
         //
         //     {
-        //         "orderId": 5258039,          // ID of the order
-        //         "type": "limit",             // not documented, but present in the actual response
-        //         "instrument": "BTC-26MAY17", // instrument name (market id)
-        //         "direction": "sell",         // order direction, "buy" or "sell"
-        //         "price": 1860,               // float, USD for futures, BTC for options
-        //         "label": "",                 // label set by the owner, up to 32 chars
-        //         "quantity": 10,              // quantity, in contracts ($10 per contract for futures, ฿1 — for options)
-        //         "filledQuantity": 3,         // filled quantity, in contracts ($10 per contract for futures, ฿1 — for options)
-        //         "avgPrice": 1860,            // average fill price of the order
-        //         "commission": -0.000001613,  // in BTC units
-        //         "created": 1494491899308,    // creation timestamp
-        //         "state": "open",             // open, cancelled, etc
-        //         "postOnly": false            // true for post-only orders only
-        // open orders --------------------------------------------------------
-        //         "lastUpdate": 1494491988754, // timestamp of the last order state change (before this cancelorder of course)
-        // closed orders ------------------------------------------------------
-        //         "tstamp": 1494492913288,     // timestamp of the last order state change, documented, but may be missing in the actual response
-        //         "modified": 1494492913289,   // timestamp of the last db write operation, e.g. trade that doesn't change order status, documented, but may missing in the actual response
-        //         "adv": false                 // advanced type (false, or "usd" or "implv")
-        //         "trades": [],                // not documented, injected from the outside of the parseOrder method into the order
+        //         "time_in_force": "good_til_cancelled",
+        //         "reduce_only": false,
+        //         "profit_loss": 0,
+        //         "price": "market_price",
+        //         "post_only": false,
+        //         "order_type": "market",
+        //         "order_state": "filled",
+        //         "order_id": "ETH-349249",
+        //         "max_show": 40,
+        //         "last_update_timestamp": 1550657341322,
+        //         "label": "market0000234",
+        //         "is_liquidation": false,
+        //         "instrument_name": "ETH-PERPETUAL",
+        //         "filled_amount": 40,
+        //         "direction": "buy",
+        //         "creation_timestamp": 1550657341322,
+        //         "commission": 0.000139,
+        //         "average_price": 143.81,
+        //         "api": true,
+        //         "amount": 40,
+        //         "trades": [], // injected by createOrder
         //     }
         //
-        const timestamp = this.safeInteger (order, 'created');
-        const lastUpdate = this.safeInteger (order, 'lastUpdate');
-        let lastTradeTimestamp = this.safeInteger2 (order, 'tstamp', 'modified');
-        const id = this.safeString (order, 'orderId');
+        const timestamp = this.safeInteger (order, 'creation_timestamp');
+        const lastUpdate = this.safeInteger (order, 'last_update_timestamp');
+        const id = this.safeString (order, 'order_id');
         const price = this.safeFloat (order, 'price');
-        const average = this.safeFloat (order, 'avgPrice');
-        const amount = this.safeFloat (order, 'quantity');
-        const filled = this.safeFloat (order, 'filledQuantity');
-        if (lastTradeTimestamp === undefined) {
-            if (filled !== undefined) {
-                if (filled > 0) {
-                    lastTradeTimestamp = lastUpdate;
-                }
+        const average = this.safeFloat (order, 'average_price');
+        const amount = this.safeFloat (order, 'amount');
+        const filled = this.safeFloat (order, 'filled_amount');
+        let lastTradeTimestamp = undefined;
+        if (filled !== undefined) {
+            if (filled > 0) {
+                lastTradeTimestamp = lastUpdate;
             }
         }
         let remaining = undefined;
@@ -45494,26 +48183,43 @@ module.exports = class deribit extends Exchange {
                 cost = price * filled;
             }
         }
-        const status = this.parseOrderStatus (this.safeString (order, 'state'));
-        const side = this.safeStringLower (order, 'direction');
-        let feeCost = this.safeFloat (order, 'commission');
-        if (feeCost !== undefined) {
-            feeCost = Math.abs (feeCost);
-        }
-        const fee = {
-            'cost': feeCost,
-            'currency': 'BTC',
-        };
-        const type = this.safeString (order, 'type');
-        const marketId = this.safeString (order, 'instrument');
+        const status = this.parseOrderStatus (this.safeString (order, 'order_state'));
+        const marketId = this.safeString (order, 'instrument_name');
         let symbol = undefined;
+        let base = undefined;
         if (marketId in this.markets_by_id) {
             market = this.markets_by_id[marketId];
             symbol = market['symbol'];
+            base = market['base'];
+        }
+        if (market !== undefined) {
+            if (symbol === undefined) {
+                symbol = market['symbol'];
+            }
+            if (base === undefined) {
+                base = market['base'];
+            }
+        }
+        const side = this.safeStringLower (order, 'direction');
+        let feeCost = this.safeFloat (order, 'commission');
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            feeCost = Math.abs (feeCost);
+            fee = {
+                'cost': feeCost,
+                'currency': base,
+            };
+        }
+        const type = this.safeString (order, 'order_type');
+        // injected in createOrder
+        let trades = this.safeValue (order, 'trades');
+        if (trades !== undefined) {
+            trades = this.parseTrades (trades, market);
         }
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -45528,169 +48234,561 @@ module.exports = class deribit extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
-            'trades': undefined, // todo: parse trades
+            'trades': trades,
         };
     }
 
     async fetchOrder (id, symbol = undefined, params = {}) {
         await this.loadMarkets ();
         const request = {
-            'orderId': id,
+            'order_id': id,
         };
-        const response = await this.privateGetOrderstate (this.extend (request, params));
+        const response = await this.privateGetGetOrderState (this.extend (request, params));
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 4316,
+        //         "result": {
+        //             "time_in_force": "good_til_cancelled",
+        //             "reduce_only": false,
+        //             "profit_loss": 0.051134,
+        //             "price": 118.94,
+        //             "post_only": false,
+        //             "order_type": "limit",
+        //             "order_state": "filled",
+        //             "order_id": "ETH-331562",
+        //             "max_show": 37,
+        //             "last_update_timestamp": 1550219810944,
+        //             "label": "",
+        //             "is_liquidation": false,
+        //             "instrument_name": "ETH-PERPETUAL",
+        //             "filled_amount": 37,
+        //             "direction": "sell",
+        //             "creation_timestamp": 1550219749176,
+        //             "commission": 0.000031,
+        //             "average_price": 118.94,
+        //             "api": false,
+        //             "amount": 37
+        //         }
+        //     }
+        //
         const result = this.safeValue (response, 'result');
-        if (result === undefined) {
-            throw new OrderNotFound (this.id + ' fetchOrder() ' + this.json (response));
-        }
         return this.parseOrder (result);
     }
 
     async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
         await this.loadMarkets ();
+        const market = this.market (symbol);
         const request = {
-            'instrument': this.marketId (symbol),
-            'quantity': amount,
-            'type': type,
-            // 'post_only': 'false' or 'true', https://github.com/ccxt/ccxt/issues/5159
+            'instrument_name': market['id'],
+            // for perpetual and futures the amount is in USD
+            // for options it is in corresponding cryptocurrency contracts, e.g., BTC or ETH
+            'amount': this.amountToPrecision (symbol, amount),
+            'type': type, // limit, stop_limit, market, stop_market, default is limit
+            // 'label': 'string', // user-defined label for the order (maximum 64 characters)
+            // 'price': this.priceToPrecision (symbol, 123.45), // only for limit and stop_limit orders
+            // 'time_in_force' : 'good_til_cancelled', // fill_or_kill, immediate_or_cancel
+            // 'max_show': 123.45, // max amount within an order to be shown to other customers, 0 for invisible order
+            // 'post_only': false, // if the new price would cause the order to be filled immediately (as taker), the price will be changed to be just below the spread.
+            // 'reject_post_only': false, // if true the order is put to order book unmodified or request is rejected
+            // 'reduce_only': false, // if true, the order is intended to only reduce a current position
+            // 'stop_price': false, // stop price, required for stop_limit orders
+            // 'trigger': 'index_price', // mark_price, last_price, required for stop_limit orders
+            // 'advanced': 'usd', // 'implv', advanced option order type, options only
         };
-        if (price !== undefined) {
-            request['price'] = price;
+        let priceIsRequired = false;
+        let stopPriceIsRequired = false;
+        if (type === 'limit') {
+            priceIsRequired = true;
+        } else if (type === 'stop_limit') {
+            priceIsRequired = true;
+            stopPriceIsRequired = true;
         }
-        const method = 'privatePost' + this.capitalize (side);
+        if (priceIsRequired) {
+            if (price !== undefined) {
+                request['price'] = this.priceToPrecision (symbol, price);
+            } else {
+                throw new ArgumentsRequired (this.id + ' createOrder requires a price argument for a ' + type + ' order');
+            }
+        }
+        if (stopPriceIsRequired) {
+            const stopPrice = this.safeFloat2 (params, 'stop_price', 'stopPrice');
+            if (stopPrice === undefined) {
+                throw new ArgumentsRequired (this.id + ' createOrder requires a stop_price or stopPrice param for a ' + type + ' order');
+            } else {
+                request['stop_price'] = this.priceToPrecision (symbol, stopPrice);
+            }
+        }
+        const method = 'privateGet' + this.capitalize (side);
         const response = await this[method] (this.extend (request, params));
-        const order = this.safeValue (response['result'], 'order');
-        if (order === undefined) {
-            return response;
-        }
-        return this.parseOrder (order);
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 5275,
+        //         "result": {
+        //             "trades": [
+        //                 {
+        //                     "trade_seq": 14151,
+        //                     "trade_id": "ETH-37435",
+        //                     "timestamp": 1550657341322,
+        //                     "tick_direction": 2,
+        //                     "state": "closed",
+        //                     "self_trade": false,
+        //                     "price": 143.81,
+        //                     "order_type": "market",
+        //                     "order_id": "ETH-349249",
+        //                     "matching_id": null,
+        //                     "liquidity": "T",
+        //                     "label": "market0000234",
+        //                     "instrument_name": "ETH-PERPETUAL",
+        //                     "index_price": 143.73,
+        //                     "fee_currency": "ETH",
+        //                     "fee": 0.000139,
+        //                     "direction": "buy",
+        //                     "amount": 40
+        //                 }
+        //             ],
+        //             "order": {
+        //                 "time_in_force": "good_til_cancelled",
+        //                 "reduce_only": false,
+        //                 "profit_loss": 0,
+        //                 "price": "market_price",
+        //                 "post_only": false,
+        //                 "order_type": "market",
+        //                 "order_state": "filled",
+        //                 "order_id": "ETH-349249",
+        //                 "max_show": 40,
+        //                 "last_update_timestamp": 1550657341322,
+        //                 "label": "market0000234",
+        //                 "is_liquidation": false,
+        //                 "instrument_name": "ETH-PERPETUAL",
+        //                 "filled_amount": 40,
+        //                 "direction": "buy",
+        //                 "creation_timestamp": 1550657341322,
+        //                 "commission": 0.000139,
+        //                 "average_price": 143.81,
+        //                 "api": true,
+        //                 "amount": 40
+        //             }
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const order = this.safeValue (result, 'order');
+        const trades = this.safeValue (result, 'trades', []);
+        order['trades'] = trades;
+        return this.parseOrder (order, market);
     }
 
     async editOrder (id, symbol, type, side, amount = undefined, price = undefined, params = {}) {
+        if (amount === undefined) {
+            throw new ArgumentsRequired (this.id + ' editOrder requires an amount argument');
+        }
+        if (price === undefined) {
+            throw new ArgumentsRequired (this.id + ' editOrder requires a price argument');
+        }
         await this.loadMarkets ();
         const request = {
-            'orderId': id,
+            'order_id': id,
+            // for perpetual and futures the amount is in USD
+            // for options it is in corresponding cryptocurrency contracts, e.g., BTC or ETH
+            'amount': this.amountToPrecision (symbol, amount),
+            'price': this.priceToPrecision (symbol, price), // required
+            // 'post_only': false, // if the new price would cause the order to be filled immediately (as taker), the price will be changed to be just below the spread.
+            // 'reject_post_only': false, // if true the order is put to order book unmodified or request is rejected
+            // 'reduce_only': false, // if true, the order is intended to only reduce a current position
+            // 'stop_price': false, // stop price, required for stop_limit orders
+            // 'advanced': 'usd', // 'implv', advanced option order type, options only
         };
-        if (amount !== undefined) {
-            request['quantity'] = amount;
-        }
-        if (price !== undefined) {
-            request['price'] = price;
-        }
-        const response = await this.privatePostEdit (this.extend (request, params));
-        return this.parseOrder (response['result']['order']);
+        const response = await this.privateGetEdit (this.extend (request, params));
+        const result = this.safeValue (response, 'result', {});
+        const order = this.safeValue (result, 'order');
+        const trades = this.safeValue (result, 'trades', []);
+        order['trades'] = trades;
+        return this.parseOrder (order);
     }
 
     async cancelOrder (id, symbol = undefined, params = {}) {
         await this.loadMarkets ();
         const request = {
-            'orderId': id,
+            'order_id': id,
         };
-        const response = await this.privatePostCancel (this.extend (request, params));
-        return this.parseOrder (response['result']['order']);
+        const response = await this.privateGetCancel (this.extend (request, params));
+        const result = this.safeValue (response, 'result', {});
+        return this.parseOrder (result);
+    }
+
+    async cancelAllOrders (symbol = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {};
+        let method = undefined;
+        if (symbol === undefined) {
+            method = 'privateGetCancelAll';
+        } else {
+            method = 'privateGetCancelAllByInstrument';
+            const market = this.market (symbol);
+            request['instrument_name'] = market['id'];
+        }
+        const response = await this[method] (this.extend (request, params));
+        return response;
     }
 
     async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        if (symbol === undefined) {
-            throw new ArgumentsRequired (this.id + ' fetchClosedOrders() requires a `symbol` argument');
-        }
         await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'instrument': market['id'],
-        };
-        const response = await this.privateGetGetopenorders (this.extend (request, params));
-        return this.parseOrders (response['result'], market, since, limit);
+        const request = {};
+        let market = undefined;
+        let method = undefined;
+        if (symbol === undefined) {
+            const code = this.codeFromOptions ('fetchOpenOrders');
+            const currency = this.currency (code);
+            request['currency'] = currency['id'];
+            method = 'privateGetGetOpenOrdersByCurrency';
+        } else {
+            market = this.market (symbol);
+            request['instrument_name'] = market['id'];
+            method = 'privateGetGetOpenOrdersByInstrument';
+        }
+        const response = await this[method] (this.extend (request, params));
+        const result = this.safeValue (response, 'result', []);
+        return this.parseOrders (result, market, since, limit);
     }
 
     async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        if (symbol === undefined) {
-            throw new ArgumentsRequired (this.id + ' fetchClosedOrders() requires a `symbol` argument');
-        }
         await this.loadMarkets ();
-        const market = this.market (symbol);
+        const request = {};
+        let market = undefined;
+        let method = undefined;
+        if (symbol === undefined) {
+            const code = this.codeFromOptions ('fetchClosedOrders');
+            const currency = this.currency (code);
+            request['currency'] = currency['id'];
+            method = 'privateGetGetOrderHistoryByCurrency';
+        } else {
+            market = this.market (symbol);
+            request['instrument_name'] = market['id'];
+            method = 'privateGetGetOrderHistoryByInstrument';
+        }
+        const response = await this[method] (this.extend (request, params));
+        const result = this.safeValue (response, 'result', []);
+        return this.parseOrders (result, market, since, limit);
+    }
+
+    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
         const request = {
-            'instrument': market['id'],
+            'order_id': id,
         };
-        const response = await this.privateGetOrderhistory (this.extend (request, params));
-        return this.parseOrders (response['result'], market, since, limit);
+        const response = await this.privateGetGetUserTradesByOrder (this.extend (request, params));
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 9367,
+        //         "result": {
+        //             "trades": [
+        //                 {
+        //                     "trade_seq": 3,
+        //                     "trade_id": "ETH-34066",
+        //                     "timestamp": 1550219814585,
+        //                     "tick_direction": 1,
+        //                     "state": "open",
+        //                     "self_trade": false,
+        //                     "reduce_only": false,
+        //                     "price": 0.04,
+        //                     "post_only": false,
+        //                     "order_type": "limit",
+        //                     "order_id": "ETH-334607",
+        //                     "matching_id": null,
+        //                     "liquidity": "M",
+        //                     "iv": 56.83,
+        //                     "instrument_name": "ETH-22FEB19-120-C",
+        //                     "index_price": 121.37,
+        //                     "fee_currency": "ETH",
+        //                     "fee": 0.0011,
+        //                     "direction": "buy",
+        //                     "amount": 11
+        //                 },
+        //             ],
+        //             "has_more": true
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const trades = this.safeValue (result, 'trades', []);
+        return this.parseTrades (trades, undefined, since, limit);
     }
 
     async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
         await this.loadMarkets ();
-        const market = this.market (symbol);
         const request = {
-            'instrument': market['id'],
+            'include_old': true,
         };
-        if (limit !== undefined) {
-            request['count'] = limit; // default = 20
+        let market = undefined;
+        let method = undefined;
+        if (symbol === undefined) {
+            const code = this.codeFromOptions ('fetchMyTrades');
+            const currency = this.currency (code);
+            request['currency'] = currency['id'];
+            if (since === undefined) {
+                method = 'privateGetGetUserTradesByCurrency';
+            } else {
+                method = 'privateGetGetUserTradesByCurrencyAndTime';
+                request['start_timestamp'] = since;
+            }
+        } else {
+            market = this.market (symbol);
+            request['instrument_name'] = market['id'];
+            if (since === undefined) {
+                method = 'privateGetGetUserTradesByInstrument';
+            } else {
+                method = 'privateGetGetUserTradesByInstrumentAndTime';
+                request['start_timestamp'] = since;
+            }
         }
-        const response = await this.privateGetTradehistory (this.extend (request, params));
+        if (limit !== undefined) {
+            request['count'] = limit; // default 10
+        }
+        const response = await this[method] (this.extend (request, params));
         //
         //     {
-        //         "usOut":1559611553394836,
-        //         "usIn":1559611553394000,
-        //         "usDiff":836,
-        //         "testnet":false,
-        //         "success":true,
-        //         "result": [
-        //             {
-        //                 "quantity":54,
-        //                 "amount":540.0,
-        //                 "tradeId":23087297,
-        //                 "instrument":"BTC-PERPETUAL",
-        //                 "timeStamp":1559604178803,
-        //                 "tradeSeq":8265011,
-        //                 "price":8213.0,
-        //                 "side":"sell",
-        //                 "orderId":12373631800,
-        //                 "matchingId":0,
-        //                 "liquidity":"T",
-        //                 "fee":0.000049312,
-        //                 "feeCurrency":"BTC",
-        //                 "tickDirection":3,
-        //                 "indexPrice":8251.94,
-        //                 "selfTrade":false
-        //             }
-        //         ],
-        //         "message":"",
-        //         "has_more":true
+        //         "jsonrpc": "2.0",
+        //         "id": 9367,
+        //         "result": {
+        //             "trades": [
+        //                 {
+        //                     "trade_seq": 3,
+        //                     "trade_id": "ETH-34066",
+        //                     "timestamp": 1550219814585,
+        //                     "tick_direction": 1,
+        //                     "state": "open",
+        //                     "self_trade": false,
+        //                     "reduce_only": false,
+        //                     "price": 0.04,
+        //                     "post_only": false,
+        //                     "order_type": "limit",
+        //                     "order_id": "ETH-334607",
+        //                     "matching_id": null,
+        //                     "liquidity": "M",
+        //                     "iv": 56.83,
+        //                     "instrument_name": "ETH-22FEB19-120-C",
+        //                     "index_price": 121.37,
+        //                     "fee_currency": "ETH",
+        //                     "fee": 0.0011,
+        //                     "direction": "buy",
+        //                     "amount": 11
+        //                 },
+        //             ],
+        //             "has_more": true
+        //         }
         //     }
         //
-        const trades = this.safeValue (response, 'result', []);
+        const result = this.safeValue (response, 'result', {});
+        const trades = this.safeValue (result, 'trades', []);
         return this.parseTrades (trades, market, since, limit);
     }
 
+    async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
+        if (code === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchDeposits() requires a currency code argument');
+        }
+        await this.loadMarkets ();
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        if (limit !== undefined) {
+            request['count'] = limit;
+        }
+        const response = await this.privateGetGetDeposits (this.extend (request, params));
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 5611,
+        //         "result": {
+        //             "count": 1,
+        //             "data": [
+        //                 {
+        //                     "address": "2N35qDKDY22zmJq9eSyiAerMD4enJ1xx6ax",
+        //                     "amount": 5,
+        //                     "currency": "BTC",
+        //                     "received_timestamp": 1549295017670,
+        //                     "state": "completed",
+        //                     "transaction_id": "230669110fdaf0a0dbcdc079b6b8b43d5af29cc73683835b9bc6b3406c065fda",
+        //                     "updated_timestamp": 1549295130159
+        //                 }
+        //             ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseTransactions (data, currency, since, limit, params);
+    }
+
+    async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
+        if (code === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchWithdrawals() requires a currency code argument');
+        }
+        await this.loadMarkets ();
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        if (limit !== undefined) {
+            request['count'] = limit;
+        }
+        const response = await this.privateGetGetWithdrawals (this.extend (request, params));
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 2745,
+        //         "result": {
+        //             "count": 1,
+        //             "data": [
+        //                 {
+        //                     "address": "2NBqqD5GRJ8wHy1PYyCXTe9ke5226FhavBz",
+        //                     "amount": 0.5,
+        //                     "confirmed_timestamp": null,
+        //                     "created_timestamp": 1550571443070,
+        //                     "currency": "BTC",
+        //                     "fee": 0.0001,
+        //                     "id": 1,
+        //                     "priority": 0.15,
+        //                     "state": "unconfirmed",
+        //                     "transaction_id": null,
+        //                     "updated_timestamp": 1550571443070
+        //                 }
+        //             ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseTransactions (data, currency, since, limit, params);
+    }
+
+    parseTransactionStatus (status) {
+        const statuses = {
+            'completed': 'ok',
+            'unconfirmed': 'pending',
+        };
+        return this.safeString (statuses, status, status);
+    }
+
+    parseTransaction (transaction, currency = undefined) {
+        //
+        // fetchWithdrawals
+        //
+        //     {
+        //         "address": "2NBqqD5GRJ8wHy1PYyCXTe9ke5226FhavBz",
+        //         "amount": 0.5,
+        //         "confirmed_timestamp": null,
+        //         "created_timestamp": 1550571443070,
+        //         "currency": "BTC",
+        //         "fee": 0.0001,
+        //         "id": 1,
+        //         "priority": 0.15,
+        //         "state": "unconfirmed",
+        //         "transaction_id": null,
+        //         "updated_timestamp": 1550571443070
+        //     }
+        //
+        // fetchDeposits
+        //
+        //     {
+        //         "address": "2N35qDKDY22zmJq9eSyiAerMD4enJ1xx6ax",
+        //         "amount": 5,
+        //         "currency": "BTC",
+        //         "received_timestamp": 1549295017670,
+        //         "state": "completed",
+        //         "transaction_id": "230669110fdaf0a0dbcdc079b6b8b43d5af29cc73683835b9bc6b3406c065fda",
+        //         "updated_timestamp": 1549295130159
+        //     }
+        //
+        const currencyId = this.safeString (transaction, 'currency');
+        const code = this.safeCurrencyCode (currencyId, currency);
+        const timestamp = this.safeInteger2 (transaction, 'created_timestamp', 'received_timestamp');
+        const updated = this.safeInteger (transaction, 'updated_timestamp');
+        const status = this.parseTransactionStatus (this.safeString (transaction, 'state'));
+        const address = this.safeString (transaction, 'address');
+        const feeCost = this.safeFloat (transaction, 'fee');
+        let type = 'deposit';
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            type = 'withdrawal';
+            fee = {
+                'cost': feeCost,
+                'currency': code,
+            };
+        }
+        return {
+            'info': transaction,
+            'id': this.safeString (transaction, 'id'),
+            'txid': this.safeString (transaction, 'transaction_id'),
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'address': address,
+            'addressTo': address,
+            'addressFrom': undefined,
+            'tag': undefined,
+            'tagTo': undefined,
+            'tagFrom': undefined,
+            'type': type,
+            'amount': this.safeFloat (transaction, 'amount'),
+            'currency': code,
+            'status': status,
+            'updated': updated,
+            'fee': fee,
+        };
+    }
+
+    async withdraw (code, amount, address, tag = undefined, params = {}) {
+        this.checkAddress (address);
+        await this.loadMarkets ();
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+            'address': address, // must be in the address book
+            'amount': amount,
+            // 'priority': 'high', // low, mid, high, very_high, extreme_high, insane
+            // 'tfa': '123456', // if enabled
+        };
+        if (this.twofa !== undefined) {
+            request['tfa'] = this.oath ();
+        }
+        const response = await this.privateGetWithdraw (this.extend (request, params));
+        return {
+            'info': response,
+            'id': this.safeString (response, 'id'),
+        };
+    }
+
     nonce () {
         return this.milliseconds ();
     }
 
     sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        const query = '/' + 'api/' + this.version + '/' + api + '/' + path;
-        let url = this.urls['api'] + query;
+        let request = '/' + 'api/' + this.version + '/' + api + '/' + path;
         if (api === 'public') {
             if (Object.keys (params).length) {
-                url += '?' + this.urlencode (params);
-            }
-        } else {
-            this.checkRequiredCredentials ();
-            const nonce = this.nonce ().toString ();
-            let auth = '_=' + nonce + '&_ackey=' + this.apiKey + '&_acsec=' + this.secret + '&_action=' + query;
-            if (Object.keys (params).length) {
-                params = this.keysort (params);
-                auth += '&' + this.urlencode (params);
-            }
-            const hash = this.hash (this.encode (auth), 'sha256', 'base64');
-            const signature = this.apiKey + '.' + nonce + '.' + this.decode (hash);
-            headers = {
-                'x-deribit-sig': signature,
-            };
-            if (method !== 'GET') {
-                headers['Content-Type'] = 'application/x-www-form-urlencoded';
-                body = this.urlencode (params);
-            } else if (Object.keys (params).length) {
-                url += '?' + this.urlencode (params);
+                request += '?' + this.urlencode (params);
             }
         }
+        if (api === 'private') {
+            this.checkRequiredCredentials ();
+            const nonce = this.nonce ().toString ();
+            const timestamp = this.milliseconds ().toString ();
+            const requestBody = '';
+            if (Object.keys (params).length) {
+                request += '?' + this.urlencode (params);
+            }
+            const requestData = method + "\n" + request + "\n" + requestBody + "\n"; // eslint-disable-line quotes
+            const auth = timestamp + "\n" + nonce + "\n" + requestData; // eslint-disable-line quotes
+            const signature = this.hmac (this.encode (auth), this.encode (this.secret), 'sha256');
+            headers = {
+                'Authorization': 'deri-hmac-sha256 id=' + this.apiKey + ',ts=' + timestamp + ',sig=' + signature + ',' + 'nonce=' + nonce,
+            };
+        }
+        const url = this.urls['api'] + request;
         return { 'url': url, 'method': method, 'body': body, 'headers': headers };
     }
 
@@ -45699,18 +48797,30 @@ module.exports = class deribit extends Exchange {
             return; // fallback to default error handler
         }
         //
-        //     {"usOut":1535877098645376,"usIn":1535877098643364,"usDiff":2012,"testnet":false,"success":false,"message":"order_not_found","error":10004}
+        //     {
+        //         jsonrpc: '2.0',
+        //         error: {
+        //             message: 'Invalid params',
+        //             data: { reason: 'invalid currency', param: 'currency' },
+        //             code: -32602
+        //         },
+        //         testnet: false,
+        //         usIn: 1583763842150374,
+        //         usOut: 1583763842150410,
+        //         usDiff: 36
+        //     }
         //
-        const error = this.safeString (response, 'error');
-        if ((error !== undefined) && (error !== '0')) {
+        const error = this.safeValue (response, 'error');
+        if (error !== undefined) {
+            const errorCode = this.safeString (error, 'code');
             const feedback = this.id + ' ' + body;
-            this.throwExactlyMatchedException (this.exceptions, error, feedback);
+            this.throwExactlyMatchedException (this.exceptions, errorCode, feedback);
             throw new ExchangeError (feedback); // unknown message
         }
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],79:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],78:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -46562,6 +49672,7 @@ module.exports = class digifinex extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -46576,6 +49687,7 @@ module.exports = class digifinex extends Exchange {
             'average': average,
             'status': status,
             'fee': undefined,
+            'trades': undefined,
         };
     }
 
@@ -46887,7 +49999,7 @@ module.exports = class digifinex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],80:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],79:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -46922,7 +50034,7 @@ module.exports = class dsx extends Exchange {
                 'withdraw': true,
             },
             'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27990275-1413158a-645a-11e7-931c-94717f7510e3.jpg',
+                'logo': 'https://user-images.githubusercontent.com/51840849/76909626-cb2bb100-68bc-11ea-99e0-28ba54f04792.jpg',
                 'api': {
                     'public': 'https://dsx.uk/mapi', // market data
                     'private': 'https://dsx.uk/tapi', // trading
@@ -47604,6 +50716,9 @@ module.exports = class dsx extends Exchange {
             'filled': filled,
             'fee': undefined,
             // 'trades': this.parseTrades (order['trades'], market),
+            'clientOrderId': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
@@ -47715,6 +50830,7 @@ module.exports = class dsx extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -47729,6 +50845,7 @@ module.exports = class dsx extends Exchange {
             'status': status,
             'fee': fee,
             'trades': trades,
+            'average': undefined,
         };
     }
 
@@ -48154,7 +51271,7 @@ module.exports = class dsx extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],81:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],80:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -48577,6 +51694,7 @@ module.exports = class exmo extends Exchange {
                     '40015': ExchangeError, // API function do not exist
                     '40016': OnMaintenance, // {"result":false,"error":"Error 40016: Maintenance work in progress"}
                     '40017': AuthenticationError, // Wrong API Key
+                    '40034': RateLimitExceeded, // {"result":false,"error":"Error 40034: Access is denied, rate limit is exceeded"}
                     '50052': InsufficientFunds,
                     '50054': InsufficientFunds,
                     '50304': OrderNotFound, // "Order was not found '123456789'" (fetching order trades for an order that does not have trades yet)
@@ -49056,6 +52174,8 @@ module.exports = class exmo extends Exchange {
             'filled': 0.0,
             'fee': undefined,
             'trades': undefined,
+            'clientOrderId': undefined,
+            'average': undefined,
         };
         this.orders[id] = order;
         return order;
@@ -49323,6 +52443,7 @@ module.exports = class exmo extends Exchange {
         };
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -49599,7 +52720,7 @@ module.exports = class exmo extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],82:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],81:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -49874,6 +52995,20 @@ module.exports = class exx extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "fees": 0,
+        //         "total_amount": 1,
+        //         "trade_amount": 0,
+        //         "price": 30,
+        //         "currency": “eth_hsr",
+        //         "id": "13878",
+        //         "trade_money": 0,
+        //         "type": "buy",
+        //         "trade_date": 1509728897772,
+        //         "status": 0
+        //     }
+        //
         const symbol = market['symbol'];
         const timestamp = parseInt (order['trade_date']);
         const price = this.safeFloat (order, 'price');
@@ -49898,6 +53033,7 @@ module.exports = class exx extends Exchange {
         }
         return {
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -49913,6 +53049,7 @@ module.exports = class exx extends Exchange {
             'trades': undefined,
             'fee': fee,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -50036,7 +53173,7 @@ module.exports = class exx extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],83:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],82:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -50553,6 +53690,22 @@ module.exports = class fcoin extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "id": "string",
+        //         "symbol": "string",
+        //         "type": "limit",
+        //         "side": "buy",
+        //         "price": "string",
+        //         "amount": "string",
+        //         "state": "submitted",
+        //         "executed_value": "string",
+        //         "fill_fees": "string",
+        //         "filled_amount": "string",
+        //         "created_at": 0,
+        //         "source": "web"
+        //     }
+        //
         const id = this.safeString (order, 'id');
         const side = this.safeString (order, 'side');
         const status = this.parseOrderStatus (this.safeString (order, 'state'));
@@ -50601,6 +53754,7 @@ module.exports = class fcoin extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -50753,7 +53907,7 @@ module.exports = class fcoin extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],84:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],83:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -50779,7 +53933,7 @@ module.exports = class fcoinjp extends fcoin {
     }
 };
 
-},{"./fcoin.js":83}],85:[function(require,module,exports){
+},{"./fcoin.js":82}],84:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -50890,6 +54044,7 @@ module.exports = class flowbtc extends Exchange {
                     },
                 },
                 'info': market,
+                'active': undefined,
             };
         }
         return result;
@@ -50979,6 +54134,8 @@ module.exports = class flowbtc extends Exchange {
             'price': price,
             'amount': amount,
             'cost': cost,
+            'takerOrMaker': undefined,
+            'fee': undefined,
         };
     }
 
@@ -51055,7 +54212,7 @@ module.exports = class flowbtc extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],86:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],85:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -51314,7 +54471,7 @@ module.exports = class foxbit extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],87:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],86:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -51333,10 +54490,14 @@ module.exports = class ftx extends Exchange {
             'countries': [ 'HK' ],
             'rateLimit': 100,
             'certified': true,
+            'pro': true,
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/67149189-df896480-f2b0-11e9-8816-41593e17f9ec.jpg',
                 'www': 'https://ftx.com',
-                'api': 'https://ftx.com',
+                'api': {
+                    'public': 'https://ftx.com',
+                    'private': 'https://ftx.com',
+                },
                 'doc': 'https://github.com/ftexchange/ftx',
                 'fees': 'https://ftexchange.zendesk.com/hc/en-us/articles/360024479432-Fees',
                 'referral': 'https://ftx.com/#a=1623029',
@@ -51476,6 +54637,19 @@ module.exports = class ftx extends Exchange {
                 },
             },
             'precisionMode': TICK_SIZE,
+            'options': {
+                // support for canceling conditional orders
+                // https://github.com/ccxt/ccxt/issues/6669
+                'cancelOrder': {
+                    'method': 'privateDeleteOrdersOrderId', // privateDeleteConditionalOrdersOrderId
+                },
+                'fetchOpenOrders': {
+                    'method': 'privateGetOrders', // privateGetConditionalOrders
+                },
+                'fetchOrders': {
+                    'method': 'privateGetOrdersHistory', // privateGetConditionalOrdersHistory
+                },
+            },
         });
     }
 
@@ -51651,14 +54825,16 @@ module.exports = class ftx extends Exchange {
             } else {
                 const base = this.safeCurrencyCode (this.safeString (ticker, 'baseCurrency'));
                 const quote = this.safeCurrencyCode (this.safeString (ticker, 'quoteCurrency'));
-                symbol = base + '/' + quote;
+                if ((base !== undefined) && (quote !== undefined)) {
+                    symbol = base + '/' + quote;
+                }
             }
         }
         if ((symbol === undefined) && (market !== undefined)) {
             symbol = market['symbol'];
         }
         const last = this.safeFloat (ticker, 'last');
-        const timestamp = this.milliseconds ();
+        const timestamp = this.safeTimestamp (ticker, 'time', this.milliseconds ());
         return {
             'symbol': symbol,
             'timestamp': timestamp,
@@ -51666,9 +54842,9 @@ module.exports = class ftx extends Exchange {
             'high': this.safeFloat (ticker, 'high'),
             'low': this.safeFloat (ticker, 'low'),
             'bid': this.safeFloat (ticker, 'bid'),
-            'bidVolume': undefined,
+            'bidVolume': this.safeFloat (ticker, 'bidSize'),
             'ask': this.safeFloat (ticker, 'ask'),
-            'askVolume': undefined,
+            'askVolume': this.safeFloat (ticker, 'askSize'),
             'vwap': undefined,
             'open': undefined,
             'close': last,
@@ -52162,9 +55338,11 @@ module.exports = class ftx extends Exchange {
             cost = filled * price;
         }
         const lastTradeTimestamp = this.parse8601 (this.safeString (order, 'triggeredAt'));
+        const clientOrderId = this.safeString (order, 'clientId');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -52277,7 +55455,17 @@ module.exports = class ftx extends Exchange {
         const request = {
             'order_id': parseInt (id),
         };
-        const response = await this.privateDeleteOrdersOrderId (this.extend (request, params));
+        // support for canceling conditional orders
+        // https://github.com/ccxt/ccxt/issues/6669
+        const options = this.safeValue (this.options, 'cancelOrder', {});
+        const defaultMethod = this.safeString (options, 'method', 'privateDeleteOrdersOrderId');
+        let method = this.safeString (params, 'method', defaultMethod);
+        const type = this.safeValue (params, 'type');
+        if ((type === 'stop') || (type === 'trailingStop') || (type === 'takeProfit')) {
+            method = 'privateDeleteConditionalOrdersOrderId';
+        }
+        const query = this.omit (params, [ 'method', 'type' ]);
+        const response = await this[method] (this.extend (request, query));
         //
         //     {
         //         "success": true,
@@ -52352,7 +55540,17 @@ module.exports = class ftx extends Exchange {
             market = this.market (symbol);
             request['market'] = market['id'];
         }
-        const response = await this.privateGetOrders (this.extend (request, params));
+        // support for canceling conditional orders
+        // https://github.com/ccxt/ccxt/issues/6669
+        const options = this.safeValue (this.options, 'fetchOpenOrders', {});
+        const defaultMethod = this.safeString (options, 'method', 'privateGetOrders');
+        let method = this.safeString (params, 'method', defaultMethod);
+        const type = this.safeValue (params, 'type');
+        if ((type === 'stop') || (type === 'trailingStop') || (type === 'takeProfit')) {
+            method = 'privateGetConditionalOrders';
+        }
+        const query = this.omit (params, [ 'method', 'type' ]);
+        const response = await this[method] (this.extend (request, query));
         //
         //     {
         //         "success": true,
@@ -52396,7 +55594,17 @@ module.exports = class ftx extends Exchange {
         if (since !== undefined) {
             request['start_time'] = parseInt (since / 1000);
         }
-        const response = await this.privateGetOrdersHistory (this.extend (request, params));
+        // support for canceling conditional orders
+        // https://github.com/ccxt/ccxt/issues/6669
+        const options = this.safeValue (this.options, 'fetchOrders', {});
+        const defaultMethod = this.safeString (options, 'method', 'privateGetOrdersHistory');
+        let method = this.safeString (params, 'method', defaultMethod);
+        const type = this.safeValue (params, 'type');
+        if ((type === 'stop') || (type === 'trailingStop') || (type === 'takeProfit')) {
+            method = 'privateGetConditionalOrdersHistory';
+        }
+        const query = this.omit (params, [ 'method', 'type' ]);
+        const response = await this[method] (this.extend (request, query));
         //
         //     {
         //         "success": true,
@@ -52653,7 +55861,7 @@ module.exports = class ftx extends Exchange {
     sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
         let request = '/api/' + this.implodeParams (path, params);
         const query = this.omit (params, this.extractParams (path));
-        let url = this.urls['api'] + request;
+        let url = this.urls['api'][api] + request;
         if (method !== 'POST') {
             if (Object.keys (query).length) {
                 const suffix = '?' + this.urlencode (query);
@@ -52699,7 +55907,7 @@ module.exports = class ftx extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],88:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],87:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -52896,7 +56104,7 @@ module.exports = class fybse extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],89:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],88:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -53054,6 +56262,10 @@ module.exports = class gateio extends Exchange {
                     },
                 },
             },
+            'commonCurrencies': {
+                'BTCBEAR': 'BEAR',
+                'BTCBULL': 'BULL',
+            },
         });
     }
 
@@ -53379,22 +56591,64 @@ module.exports = class gateio extends Exchange {
 
     parseOrder (order, market = undefined) {
         //
-        //    {'amount': '0.00000000',
-        //     'currencyPair': 'xlm_usdt',
-        //     'fee': '0.0113766632239302 USDT',
-        //     'feeCurrency': 'USDT',
-        //     'feePercentage': 0.18,
-        //     'feeValue': '0.0113766632239302',
-        //     'filledAmount': '30.14004987',
-        //     'filledRate': 0.2097,
-        //     'initialAmount': '30.14004987',
-        //     'initialRate': '0.2097',
-        //     'left': 0,
-        //     'orderNumber': '998307286',
-        //     'rate': '0.2097',
-        //     'status': 'closed',
-        //     'timestamp': 1531158583,
-        //     'type': 'sell'},
+        // createOrder
+        //
+        //     {
+        //        "fee": "0 ZEC",
+        //         "code": 0,
+        //         "rate": "0.0055",
+        //         "side": 2,
+        //         "type": "buy",
+        //         "ctime": 1586460839.138,
+        //         "market": "ZEC_BTC",
+        //         "result": "true",
+        //         "status": "open",
+        //         "iceberg": "0",
+        //         "message": "Success",
+        //         "feeValue": "0",
+        //         "filledRate": "0.005500000",
+        //         "leftAmount": "0.60607456",
+        //         "feeCurrency": "ZEC",
+        //         "orderNumber": 10755887009,
+        //         "filledAmount": "0",
+        //         "feePercentage": 0.002,
+        //         "initialAmount": "0.60607456"
+        //     }
+        //
+        //     {
+        //         'amount': '0.00000000',
+        //         'currencyPair': 'xlm_usdt',
+        //         'fee': '0.0113766632239302 USDT',
+        //         'feeCurrency': 'USDT',
+        //         'feePercentage': 0.18,
+        //         'feeValue': '0.0113766632239302',
+        //         'filledAmount': '30.14004987',
+        //         'filledRate': 0.2097,
+        //         'initialAmount': '30.14004987',
+        //         'initialRate': '0.2097',
+        //         'left': 0,
+        //         'orderNumber': '998307286',
+        //         'rate': '0.2097',
+        //         'status': 'closed',
+        //         'timestamp': 1531158583,
+        //         'type': 'sell'
+        //     }
+        //
+        //     {
+        //         "orderNumber": 10802237760,
+        //         "orderType": 1,
+        //         "type": "buy",
+        //         "rate": "0.54250000",
+        //         "amount": "45.55638518",
+        //         "total": "24.71433896",
+        //         "initialRate": "0.54250000",
+        //         "initialAmount": "45.55638518",
+        //         "filledRate": "0.54250000",
+        //         "filledAmount": "0",
+        //         "currencyPair": "nano_usdt",
+        //         "timestamp": 1586556143,
+        //         "status": "open"
+        //     }
         //
         const id = this.safeString2 (order, 'orderNumber', 'id');
         let symbol = undefined;
@@ -53415,12 +56669,15 @@ module.exports = class gateio extends Exchange {
         } else if (side === '2') {
             side = 'buy';
         }
-        const price = this.safeFloat2 (order, 'initialRate', 'price');
+        const price = this.safeFloat2 (order, 'initialRate', 'rate');
         const average = this.safeFloat (order, 'filledRate');
         const amount = this.safeFloat2 (order, 'initialAmount', 'amount');
         const filled = this.safeFloat (order, 'filledAmount');
         // In the order status response, this field has a different name.
-        const remaining = this.safeFloat2 (order, 'leftAmount', 'left');
+        let remaining = this.safeFloat2 (order, 'leftAmount', 'left');
+        if (remaining === undefined) {
+            remaining = amount - filled;
+        }
         const feeCost = this.safeFloat (order, 'feeValue');
         const feeCurrencyId = this.safeString (order, 'feeCurrency');
         const feeCurrencyCode = this.safeCurrencyCode (feeCurrencyId);
@@ -53430,6 +56687,7 @@ module.exports = class gateio extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -53545,7 +56803,7 @@ module.exports = class gateio extends Exchange {
 
     async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
         if (symbol === undefined) {
-            throw new ArgumentsRequired (this.id + ' fetchMyTrades requires symbol param');
+            throw new ArgumentsRequired (this.id + ' fetchMyTrades requires symbol argument');
         }
         await this.loadMarkets ();
         const market = this.market (symbol);
@@ -53724,7 +56982,7 @@ module.exports = class gateio extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],90:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],89:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -53907,8 +57165,7 @@ module.exports = class gemini extends Exchange {
         if (numTables < 2) {
             throw new NotSupported (error);
         }
-        // tables[1] = tables[1].replace ("\n", ''); // eslint-disable-line quotes
-        const rows = tables[1].split ("<tr>\n"); // eslint-disable-line quotes
+        const rows = tables[1].split ("\n<tr>\n"); // eslint-disable-line quotes
         const numRows = rows.length;
         if (numRows < 2) {
             throw new NotSupported (error);
@@ -53919,66 +57176,73 @@ module.exports = class gemini extends Exchange {
             const row = rows[i];
             const cells = row.split ("</td>\n"); // eslint-disable-line quotes
             const numCells = cells.length;
-            if (numCells < 7) {
+            if (numCells < 9) {
                 throw new NotSupported (error);
             }
-            //
             //     [
-            //         '<td><code class="prettyprint">btcusd</code>',
-            //         '<td>USD', // quote
-            //         '<td>BTC', // base
-            //         '<td>0.00001 BTC (1e-5)', // min amount
-            //         '<td>0.00000001 BTC (1e-8)', // amount min tick size
-            //         '<td>0.01 USD', // price min tick size
-            //         '</tr>\n'
+            //         '<td>BTC', // currency
+            //         '<td>0.00001 BTC (1e-5)', // min order size
+            //         '<td>0.00000001 BTC (1e-8)', // tick size
+            //         '<td>0.01 USD', // usd price increment
+            //         '<td>N/A', // btc price increment
+            //         '<td>0.0001 ETH (1e-4)', // eth price increment
+            //         '<td>0.0001 BCH (1e-4)', // bch price increment
+            //         '<td>0.001 LTC (1e-3)', // ltc price increment
+            //         '</tr>'
             //     ]
             //
-            let id = cells[0].replace ('<td>', '');
-            id = id.replace ('<code class="prettyprint">', '');
-            id = id.replace ('</code>', '');
-            let baseId = cells[2].replace ('<td>', '');
-            let quoteId = cells[1].replace ('<td>', '');
-            const minAmountAsString = cells[3].replace ('<td>', '');
-            const amountTickSizeAsString = cells[4].replace ('<td>', '');
-            const priceTickSizeAsString = cells[5].replace ('<td>', '');
-            const minAmount = minAmountAsString.split (' ');
-            const amountPrecision = amountTickSizeAsString.split (' ');
-            const pricePrecision = priceTickSizeAsString.split (' ');
-            baseId = baseId.toLowerCase ();
-            quoteId = quoteId.toLowerCase ();
+            const uppercaseBaseId = cells[0].replace ('<td>', '');
+            const baseId = uppercaseBaseId.toLowerCase ();
             const base = this.safeCurrencyCode (baseId);
-            const quote = this.safeCurrencyCode (quoteId);
-            const symbol = base + '/' + quote;
-            const precision = {
-                'amount': this.precisionFromString (amountPrecision[0]),
-                'price': this.precisionFromString (pricePrecision[0]),
-            };
-            const active = undefined;
-            result.push ({
-                'id': id,
-                'info': row,
-                'symbol': symbol,
-                'base': base,
-                'quote': quote,
-                'baseId': baseId,
-                'quoteId': quoteId,
-                'active': active,
-                'precision': precision,
-                'limits': {
-                    'amount': {
-                        'min': parseFloat (minAmount[0]),
-                        'max': undefined,
+            const quoteIds = [ 'usd', 'btc', 'eth', 'bch', 'ltc' ];
+            const minAmountString = cells[1].replace ('<td>', '');
+            const minAmountParts = minAmountString.split (' ');
+            const minAmount = this.safeFloat (minAmountParts, 0);
+            const amountPrecisionString = cells[2].replace ('<td>', '');
+            const amountPrecisionParts = amountPrecisionString.split (' ');
+            const amountPrecision = this.precisionFromString (amountPrecisionParts[0]);
+            for (let j = 0; j < quoteIds.length; j++) {
+                const quoteId = quoteIds[j];
+                const quote = this.safeCurrencyCode (quoteId);
+                const pricePrecisionIndex = this.sum (3, j);
+                const pricePrecisionString = cells[pricePrecisionIndex].replace ('<td>', '');
+                if (pricePrecisionString === 'N/A') {
+                    continue;
+                }
+                const pricePrecisionParts = pricePrecisionString.split (' ');
+                const pricePrecision = this.precisionFromString (pricePrecisionParts[0]);
+                const symbol = base + '/' + quote;
+                const id = baseId + quoteId;
+                const active = undefined;
+                result.push ({
+                    'id': id,
+                    'info': row,
+                    'symbol': symbol,
+                    'base': base,
+                    'quote': quote,
+                    'baseId': baseId,
+                    'quoteId': quoteId,
+                    'active': active,
+                    'precision': {
+                        'amount': amountPrecision,
+                        'price': pricePrecision,
                     },
-                    'price': {
-                        'min': undefined,
-                        'max': undefined,
+                    'limits': {
+                        'amount': {
+                            'min': minAmount,
+                            'max': undefined,
+                        },
+                        'price': {
+                            'min': undefined,
+                            'max': undefined,
+                        },
+                        'cost': {
+                            'min': undefined,
+                            'max': undefined,
+                        },
                     },
-                    'cost': {
-                        'min': undefined,
-                        'max': undefined,
-                    },
-                },
-            });
+                });
+            }
         }
         return result;
     }
@@ -54021,6 +57285,7 @@ module.exports = class gemini extends Exchange {
                         'max': undefined,
                     },
                 },
+                'active': undefined,
             });
         }
         return result;
@@ -54182,8 +57447,10 @@ module.exports = class gemini extends Exchange {
         }
         const id = this.safeString (order, 'order_id');
         const side = this.safeStringLower (order, 'side');
+        const clientOrderId = this.safeString (order, 'client_order_id');
         return {
             'id': id,
+            'clientOrderId': clientOrderId,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -54199,6 +57466,7 @@ module.exports = class gemini extends Exchange {
             'filled': filled,
             'remaining': remaining,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
@@ -54423,14 +57691,14 @@ module.exports = class gemini extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],91:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],90:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { BadSymbol, ExchangeError, InsufficientFunds, OrderNotFound, InvalidOrder } = require ('./base/errors');
-
+const { BadSymbol, PermissionDenied, ExchangeError, ExchangeNotAvailable, OrderNotFound, InsufficientFunds, InvalidOrder, RequestTimeout, AuthenticationError } = require ('./base/errors');
+const { TRUNCATE, DECIMAL_PLACES } = require ('./base/functions/number');
 // ---------------------------------------------------------------------------
 
 module.exports = class hitbtc extends Exchange {
@@ -54440,1045 +57708,8 @@ module.exports = class hitbtc extends Exchange {
             'name': 'HitBTC',
             'countries': [ 'HK' ],
             'rateLimit': 1500,
-            'version': '1',
-            'has': {
-                'CORS': false,
-                'fetchTrades': true,
-                'fetchTickers': true,
-                'fetchOrder': true,
-                'fetchOpenOrders': true,
-                'fetchClosedOrders': true,
-                'fetchOrderTrades': true,
-                'withdraw': true,
-            },
-            'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766555-8eaec20e-5edc-11e7-9c5b-6dc69fc42f5e.jpg',
-                'api': 'https://api.hitbtc.com',
-                'www': 'https://hitbtc.com',
-                'referral': 'https://hitbtc.com/?ref_id=5a5d39a65d466',
-                'doc': 'https://github.com/hitbtc-com/hitbtc-api/blob/master/APIv1.md',
-                'fees': [
-                    'https://hitbtc.com/fees-and-limits',
-                    'https://support.hitbtc.com/hc/en-us/articles/115005148605-Fees-and-limits',
-                ],
-            },
-            'api': {
-                'public': {
-                    'get': [
-                        '{symbol}/orderbook',
-                        '{symbol}/ticker',
-                        '{symbol}/trades',
-                        '{symbol}/trades/recent',
-                        'symbols',
-                        'ticker',
-                        'time',
-                    ],
-                },
-                'trading': {
-                    'get': [
-                        'balance',
-                        'orders/active',
-                        'orders/recent',
-                        'order',
-                        'trades/by/order',
-                        'trades',
-                    ],
-                    'post': [
-                        'new_order',
-                        'cancel_order',
-                        'cancel_orders',
-                    ],
-                },
-                'payment': {
-                    'get': [
-                        'balance',
-                        'address/{currency}',
-                        'transactions',
-                        'transactions/{transaction}',
-                    ],
-                    'post': [
-                        'transfer_to_trading',
-                        'transfer_to_main',
-                        'address/{currency}',
-                        'payout',
-                    ],
-                },
-            },
-            // hardcoded fees are deprecated and should only be used when there's no other way to get fee info
-            'fees': {
-                'trading': {
-                    'tierBased': false,
-                    'percentage': true,
-                    'maker': 0.07 / 100,
-                    'taker': 0.07 / 100,
-                },
-                'funding': {
-                    'tierBased': false,
-                    'percentage': false,
-                    'withdraw': {
-                        'BTC': 0.001,
-                        'BCC': 0.0018,
-                        'ETH': 0.00215,
-                        'BCH': 0.0018,
-                        'USDT': 100,
-                        'DASH': 0.03,
-                        'BTG': 0.0005,
-                        'LTC': 0.003,
-                        'ZEC': 0.0001,
-                        'XMR': 0.09,
-                        '1ST': 0.84,
-                        'ADX': 5.7,
-                        'AE': 6.7,
-                        'AEON': 0.01006,
-                        'AIR': 565,
-                        'AMP': 9,
-                        'ANT': 6.7,
-                        'ARDR': 1,
-                        'ARN': 18.5,
-                        'ART': 26,
-                        'ATB': 0.0004,
-                        'ATL': 27,
-                        'ATM': 504,
-                        'ATS': 860,
-                        'AVT': 1.9,
-                        'BAS': 113,
-                        'BCN': 0.1,
-                        'DAO.Casino': 124, // id = 'BET'
-                        'BKB': 46,
-                        'BMC': 32,
-                        'BMT': 100,
-                        'BNT': 2.57,
-                        'BQX': 4.7,
-                        'BTM': 40,
-                        'BTX': 0.04,
-                        'BUS': 0.004,
-                        'CCT': 115,
-                        'CDT': 100,
-                        'CDX': 30,
-                        'CFI': 61,
-                        'CLD': 0.88,
-                        'CND': 574,
-                        'CNX': 0.04,
-                        'COSS': 65,
-                        'CSNO': 16,
-                        'CTR': 15,
-                        'CTX': 146,
-                        'CVC': 8.46,
-                        'DBIX': 0.0168,
-                        'DCN': 120000,
-                        'DCT': 0.02,
-                        'DDF': 342,
-                        'DENT': 6240,
-                        'DGB': 0.4,
-                        'DGD': 0.01,
-                        'DICE': 0.32,
-                        'DLT': 0.26,
-                        'DNT': 0.21,
-                        'DOGE': 2,
-                        'DOV': 34,
-                        'DRPU': 24,
-                        'DRT': 240,
-                        'DSH': 0.017,
-                        'EBET': 84,
-                        'EBTC': 20,
-                        'EBTCOLD': 6.6,
-                        'ECAT': 14,
-                        'EDG': 2,
-                        'EDO': 2.9,
-                        'ELE': 0.00172,
-                        'ELM': 0.004,
-                        'EMC': 0.03,
-                        'EMGO': 14,
-                        'ENJ': 163,
-                        'EOS': 1.5,
-                        'ERO': 34,
-                        'ETBS': 15,
-                        'ETC': 0.002,
-                        'ETP': 0.004,
-                        'EVX': 5.4,
-                        'EXN': 456,
-                        'FRD': 65,
-                        'FUEL': 123.00105,
-                        'FUN': 202.9598309,
-                        'FYN': 1.849,
-                        'FYP': 66.13,
-                        'GNO': 0.0034,
-                        'GUP': 4,
-                        'GVT': 1.2,
-                        'HAC': 144,
-                        'HDG': 7,
-                        'HGT': 1082,
-                        'HPC': 0.4,
-                        'HVN': 120,
-                        'ICN': 0.55,
-                        'ICO': 34,
-                        'ICOS': 0.35,
-                        'IND': 76,
-                        'INDI': 5913,
-                        'ITS': 15.0012,
-                        'IXT': 11,
-                        'KBR': 143,
-                        'KICK': 112,
-                        'LA': 41,
-                        'LAT': 1.44,
-                        'LIFE': 13000,
-                        'LRC': 27,
-                        'LSK': 0.3,
-                        'LUN': 0.34,
-                        'MAID': 5,
-                        'MANA': 143,
-                        'MCAP': 5.44,
-                        'MIPS': 43,
-                        'MNE': 1.33,
-                        'MSP': 121,
-                        'MTH': 92,
-                        'MYB': 3.9,
-                        'NDC': 165,
-                        'NEBL': 0.04,
-                        'NET': 3.96,
-                        'NTO': 998,
-                        'NXC': 13.39,
-                        'NXT': 3,
-                        'OAX': 15,
-                        'ODN': 0.004,
-                        'OMG': 2,
-                        'OPT': 335,
-                        'ORME': 2.8,
-                        'OTN': 0.57,
-                        'PAY': 3.1,
-                        'PIX': 96,
-                        'PLBT': 0.33,
-                        'PLR': 114,
-                        'PLU': 0.87,
-                        'POE': 784,
-                        'POLL': 3.5,
-                        'PPT': 2,
-                        'PRE': 32,
-                        'PRG': 39,
-                        'PRO': 41,
-                        'PRS': 60,
-                        'PTOY': 0.5,
-                        'QAU': 63,
-                        'QCN': 0.03,
-                        'QTUM': 0.04,
-                        'QVT': 64,
-                        'REP': 0.02,
-                        'RKC': 15,
-                        'RVT': 14,
-                        'SAN': 2.24,
-                        'SBD': 0.03,
-                        'SCL': 2.6,
-                        'SISA': 1640,
-                        'SKIN': 407,
-                        'SMART': 0.4,
-                        'SMS': 0.0375,
-                        'SNC': 36,
-                        'SNGLS': 4,
-                        'SNM': 48,
-                        'SNT': 233,
-                        'STEEM': 0.01,
-                        'STRAT': 0.01,
-                        'STU': 14,
-                        'STX': 11,
-                        'SUB': 17,
-                        'SUR': 3,
-                        'SWT': 0.51,
-                        'TAAS': 0.91,
-                        'TBT': 2.37,
-                        'TFL': 15,
-                        'TIME': 0.03,
-                        'TIX': 7.1,
-                        'TKN': 1,
-                        'TKR': 84,
-                        'TNT': 90,
-                        'TRST': 1.6,
-                        'TRX': 1395,
-                        'UET': 480,
-                        'UGT': 15,
-                        'VEN': 14,
-                        'VERI': 0.037,
-                        'VIB': 50,
-                        'VIBE': 145,
-                        'VOISE': 618,
-                        'WEALTH': 0.0168,
-                        'WINGS': 2.4,
-                        'WTC': 0.75,
-                        'XAUR': 3.23,
-                        'XDN': 0.01,
-                        'XEM': 15,
-                        'XUC': 0.9,
-                        'YOYOW': 140,
-                        'ZAP': 24,
-                        'ZRX': 23,
-                        'ZSC': 191,
-                    },
-                    'deposit': {
-                        'BTC': 0,
-                        'ETH': 0,
-                        'BCH': 0,
-                        'USDT': 0,
-                        'BTG': 0,
-                        'LTC': 0,
-                        'ZEC': 0,
-                        'XMR': 0,
-                        '1ST': 0,
-                        'ADX': 0,
-                        'AE': 0,
-                        'AEON': 0,
-                        'AIR': 0,
-                        'AMP': 0,
-                        'ANT': 0,
-                        'ARDR': 0,
-                        'ARN': 0,
-                        'ART': 0,
-                        'ATB': 0,
-                        'ATL': 0,
-                        'ATM': 0,
-                        'ATS': 0,
-                        'AVT': 0,
-                        'BAS': 0,
-                        'BCN': 0,
-                        'DAO.Casino': 0, // id = 'BET'
-                        'BKB': 0,
-                        'BMC': 0,
-                        'BMT': 0,
-                        'BNT': 0,
-                        'BQX': 0,
-                        'BTM': 0,
-                        'BTX': 0,
-                        'BUS': 0,
-                        'CCT': 0,
-                        'CDT': 0,
-                        'CDX': 0,
-                        'CFI': 0,
-                        'CLD': 0,
-                        'CND': 0,
-                        'CNX': 0,
-                        'COSS': 0,
-                        'CSNO': 0,
-                        'CTR': 0,
-                        'CTX': 0,
-                        'CVC': 0,
-                        'DBIX': 0,
-                        'DCN': 0,
-                        'DCT': 0,
-                        'DDF': 0,
-                        'DENT': 0,
-                        'DGB': 0,
-                        'DGD': 0,
-                        'DICE': 0,
-                        'DLT': 0,
-                        'DNT': 0,
-                        'DOGE': 0,
-                        'DOV': 0,
-                        'DRPU': 0,
-                        'DRT': 0,
-                        'DSH': 0,
-                        'EBET': 0,
-                        'EBTC': 0,
-                        'EBTCOLD': 0,
-                        'ECAT': 0,
-                        'EDG': 0,
-                        'EDO': 0,
-                        'ELE': 0,
-                        'ELM': 0,
-                        'EMC': 0,
-                        'EMGO': 0,
-                        'ENJ': 0,
-                        'EOS': 0,
-                        'ERO': 0,
-                        'ETBS': 0,
-                        'ETC': 0,
-                        'ETP': 0,
-                        'EVX': 0,
-                        'EXN': 0,
-                        'FRD': 0,
-                        'FUEL': 0,
-                        'FUN': 0,
-                        'FYN': 0,
-                        'FYP': 0,
-                        'GNO': 0,
-                        'GUP': 0,
-                        'GVT': 0,
-                        'HAC': 0,
-                        'HDG': 0,
-                        'HGT': 0,
-                        'HPC': 0,
-                        'HVN': 0,
-                        'ICN': 0,
-                        'ICO': 0,
-                        'ICOS': 0,
-                        'IND': 0,
-                        'INDI': 0,
-                        'ITS': 0,
-                        'IXT': 0,
-                        'KBR': 0,
-                        'KICK': 0,
-                        'LA': 0,
-                        'LAT': 0,
-                        'LIFE': 0,
-                        'LRC': 0,
-                        'LSK': 0,
-                        'LUN': 0,
-                        'MAID': 0,
-                        'MANA': 0,
-                        'MCAP': 0,
-                        'MIPS': 0,
-                        'MNE': 0,
-                        'MSP': 0,
-                        'MTH': 0,
-                        'MYB': 0,
-                        'NDC': 0,
-                        'NEBL': 0,
-                        'NET': 0,
-                        'NTO': 0,
-                        'NXC': 0,
-                        'NXT': 0,
-                        'OAX': 0,
-                        'ODN': 0,
-                        'OMG': 0,
-                        'OPT': 0,
-                        'ORME': 0,
-                        'OTN': 0,
-                        'PAY': 0,
-                        'PIX': 0,
-                        'PLBT': 0,
-                        'PLR': 0,
-                        'PLU': 0,
-                        'POE': 0,
-                        'POLL': 0,
-                        'PPT': 0,
-                        'PRE': 0,
-                        'PRG': 0,
-                        'PRO': 0,
-                        'PRS': 0,
-                        'PTOY': 0,
-                        'QAU': 0,
-                        'QCN': 0,
-                        'QTUM': 0,
-                        'QVT': 0,
-                        'REP': 0,
-                        'RKC': 0,
-                        'RVT': 0,
-                        'SAN': 0,
-                        'SBD': 0,
-                        'SCL': 0,
-                        'SISA': 0,
-                        'SKIN': 0,
-                        'SMART': 0,
-                        'SMS': 0,
-                        'SNC': 0,
-                        'SNGLS': 0,
-                        'SNM': 0,
-                        'SNT': 0,
-                        'STEEM': 0,
-                        'STRAT': 0,
-                        'STU': 0,
-                        'STX': 0,
-                        'SUB': 0,
-                        'SUR': 0,
-                        'SWT': 0,
-                        'TAAS': 0,
-                        'TBT': 0,
-                        'TFL': 0,
-                        'TIME': 0,
-                        'TIX': 0,
-                        'TKN': 0,
-                        'TKR': 0,
-                        'TNT': 0,
-                        'TRST': 0,
-                        'TRX': 0,
-                        'UET': 0,
-                        'UGT': 0,
-                        'VEN': 0,
-                        'VERI': 0,
-                        'VIB': 0,
-                        'VIBE': 0,
-                        'VOISE': 0,
-                        'WEALTH': 0,
-                        'WINGS': 0,
-                        'WTC': 0,
-                        'XAUR': 0,
-                        'XDN': 0,
-                        'XEM': 0,
-                        'XUC': 0,
-                        'YOYOW': 0,
-                        'ZAP': 0,
-                        'ZRX': 0,
-                        'ZSC': 0,
-                    },
-                },
-            },
-            'commonCurrencies': {
-                'BET': 'DAO.Casino',
-                'CAT': 'BitClave',
-                'CPT': 'Cryptaur', // conflict with CPT = Contents Protocol https://github.com/ccxt/ccxt/issues/4920 and https://github.com/ccxt/ccxt/issues/6081
-                'DRK': 'DASH',
-                'EMGO': 'MGO',
-                'GET': 'Themis',
-                'HSR': 'HC',
-                'LNC': 'LinkerCoin',
-                'PLA': 'PlayChip',
-                'UNC': 'Unigame',
-                'USD': 'USDT',
-                'XBT': 'BTC',
-            },
-            'exceptions': {
-                'exact': {
-                    '2001': BadSymbol, // {"error":{"code":2001,"message":"Symbol not found","description":"Try get /api/2/public/symbol, to get list of all available symbols."}}
-                },
-                'broad': {
-                },
-            },
-            'options': {
-                'defaultTimeInForce': 'FOK',
-            },
-        });
-    }
-
-    async fetchMarkets (params = {}) {
-        const response = await this.publicGetSymbols (params);
-        const markets = this.safeValue (response, 'symbols');
-        const result = [];
-        for (let i = 0; i < markets.length; i++) {
-            const market = markets[i];
-            const id = this.safeString (market, 'symbol');
-            const baseId = this.safeString (market, 'commodity');
-            const quoteId = this.safeString (market, 'currency');
-            const lot = this.safeFloat (market, 'lot');
-            const step = this.safeFloat (market, 'step');
-            const base = this.safeCurrencyCode (baseId);
-            const quote = this.safeCurrencyCode (quoteId);
-            const symbol = base + '/' + quote;
-            result.push ({
-                'info': market,
-                'id': id,
-                'symbol': symbol,
-                'base': base,
-                'quote': quote,
-                'baseId': baseId,
-                'quoteId': quoteId,
-                'lot': lot,
-                'step': step,
-                'active': true,
-                'maker': this.safeFloat (market, 'provideLiquidityRate'),
-                'taker': this.safeFloat (market, 'takeLiquidityRate'),
-                'precision': {
-                    'amount': this.precisionFromString (market['lot']),
-                    'price': this.precisionFromString (market['step']),
-                },
-                'limits': {
-                    'amount': {
-                        'min': lot,
-                        'max': undefined,
-                    },
-                    'price': {
-                        'min': step,
-                        'max': undefined,
-                    },
-                    'cost': {
-                        'min': undefined,
-                        'max': undefined,
-                    },
-                },
-            });
-        }
-        return result;
-    }
-
-    async fetchBalance (params = {}) {
-        await this.loadMarkets ();
-        let method = this.safeString (params, 'type', 'trading');
-        method += 'GetBalance';
-        const query = this.omit (params, 'type');
-        const response = await this[method] (query);
-        const balances = this.safeValue (response, 'balance', []);
-        const result = { 'info': response };
-        for (let i = 0; i < balances.length; i++) {
-            const balance = balances[i];
-            const currencyId = this.safeString (balance, 'currency_code');
-            const code = this.safeCurrencyCode (currencyId);
-            const account = this.account ();
-            account['free'] = this.safeFloat2 (balance, 'cash', 'balance');
-            account['used'] = this.safeFloat (balance, 'reserved');
-            result[code] = account;
-        }
-        return this.parseBalance (result);
-    }
-
-    async fetchOrderBook (symbol, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const orderbook = await this.publicGetSymbolOrderbook (this.extend ({
-            'symbol': this.marketId (symbol),
-        }, params));
-        return this.parseOrderBook (orderbook);
-    }
-
-    parseTicker (ticker, market = undefined) {
-        const timestamp = this.safeInteger (ticker, 'timestamp');
-        let symbol = undefined;
-        if (market) {
-            symbol = market['symbol'];
-        }
-        const last = this.safeFloat (ticker, 'last');
-        return {
-            'symbol': symbol,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'high': this.safeFloat (ticker, 'high'),
-            'low': this.safeFloat (ticker, 'low'),
-            'bid': this.safeFloat (ticker, 'bid'),
-            'bidVolume': undefined,
-            'ask': this.safeFloat (ticker, 'ask'),
-            'askVolume': undefined,
-            'vwap': undefined,
-            'open': this.safeFloat (ticker, 'open'),
-            'close': last,
-            'last': last,
-            'previousClose': undefined,
-            'change': undefined,
-            'percentage': undefined,
-            'average': undefined,
-            'baseVolume': this.safeFloat (ticker, 'volume'),
-            'quoteVolume': this.safeFloat (ticker, 'volume_quote'),
-            'info': ticker,
-        };
-    }
-
-    async fetchTickers (symbols = undefined, params = {}) {
-        await this.loadMarkets ();
-        const tickers = await this.publicGetTicker (params);
-        const ids = Object.keys (tickers);
-        const result = {};
-        for (let i = 0; i < ids.length; i++) {
-            const id = ids[i];
-            const market = this.markets_by_id[id];
-            const symbol = market['symbol'];
-            const ticker = tickers[id];
-            result[symbol] = this.parseTicker (ticker, market);
-        }
-        return result;
-    }
-
-    async fetchTicker (symbol, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'symbol': market['id'],
-        };
-        const response = await this.publicGetSymbolTicker (this.extend (request, params));
-        if ('message' in response) {
-            throw new ExchangeError (this.id + ' ' + response['message']);
-        }
-        return this.parseTicker (response, market);
-    }
-
-    parseTrade (trade, market = undefined) {
-        if (Array.isArray (trade)) {
-            return this.parsePublicTrade (trade, market);
-        }
-        return this.parseOrderTrade (trade, market);
-    }
-
-    parsePublicTrade (trade, market = undefined) {
-        let symbol = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        let side = undefined;
-        const tradeLength = trade.length;
-        if (tradeLength > 4) {
-            side = trade[4];
-        }
-        const price = parseFloat (trade[1]);
-        const amount = parseFloat (trade[2]);
-        const cost = price * amount;
-        return {
-            'info': trade,
-            'id': trade[0].toString (),
-            'timestamp': trade[3],
-            'datetime': this.iso8601 (trade[3]),
-            'symbol': symbol,
-            'type': undefined,
-            'side': side,
-            'order': undefined,
-            'takerOrMaker': undefined,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-            'fee': undefined,
-        };
-    }
-
-    parseOrderTrade (trade, market = undefined) {
-        let symbol = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        let amount = this.safeFloat (trade, 'execQuantity');
-        if (market) {
-            amount *= market['lot'];
-        }
-        const price = this.safeFloat (trade, 'execPrice');
-        const cost = price * amount;
-        const fee = {
-            'cost': this.safeFloat (trade, 'fee'),
-            'currency': undefined,
-            'rate': undefined,
-        };
-        const timestamp = this.safeInteger (trade, 'timestamp');
-        const id = this.safeString (trade, 'tradeId');
-        // we use clientOrderId as the order id with HitBTC intentionally
-        // because most of their endpoints will require clientOrderId
-        // explained here: https://github.com/ccxt/ccxt/issues/5674
-        const orderId = this.safeString (trade, 'clientOrderId');
-        const side = this.safeString (trade, 'side');
-        return {
-            'info': trade,
-            'id': id,
-            'order': orderId,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': symbol,
-            'type': undefined,
-            'side': side,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-            'fee': fee,
-        };
-    }
-
-    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'symbol': market['id'],
-            // 'from': 0,
-            // 'till': 100,
-            // 'by': 'ts', // or by trade_id
-            // 'sort': 'desc', // or asc
-            // 'start_index': 0,
-            // 'max_results': 1000,
-            // 'format_item': 'object',
-            // 'format_price': 'number',
-            // 'format_amount': 'number',
-            // 'format_tid': 'string',
-            // 'format_timestamp': 'millisecond',
-            // 'format_wrap': false,
-            // 'side': 'true',
-        };
-        if (since !== undefined) {
-            request['by'] = 'ts';
-            request['from'] = since;
-        }
-        if (limit !== undefined) {
-            request['max_results'] = limit;
-        }
-        const response = await this.publicGetSymbolTrades (this.extend (request, params));
-        return this.parseTrades (response['trades'], market, since, limit);
-    }
-
-    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        // check if amount can be evenly divided into lots
-        // they want integer quantity in lot units
-        const quantity = parseFloat (amount) / market['lot'];
-        const wholeLots = Math.round (quantity);
-        const difference = quantity - wholeLots;
-        if (Math.abs (difference) > market['step']) {
-            throw new ExchangeError (this.id + ' order amount should be evenly divisible by lot unit size of ' + market['lot'].toString ());
-        }
-        const clientOrderId = this.milliseconds ();
-        const request = {
-            'clientOrderId': clientOrderId.toString (),
-            'symbol': market['id'],
-            'side': side,
-            'quantity': wholeLots.toString (), // quantity in integer lot units
-            'type': type,
-        };
-        if (type === 'limit') {
-            request['price'] = this.priceToPrecision (symbol, price);
-        } else {
-            request['timeInForce'] = this.options['defaultTimeInForce'];
-        }
-        const response = await this.tradingPostNewOrder (this.extend (request, params));
-        const order = this.parseOrder (response['ExecutionReport'], market);
-        if (order['status'] === 'rejected') {
-            throw new InvalidOrder (this.id + ' order was rejected by the exchange ' + this.json (order));
-        }
-        return order;
-    }
-
-    async cancelOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        // we use clientOrderId as the order id with HitBTC intentionally
-        // because most of their endpoints will require clientOrderId
-        // explained here: https://github.com/ccxt/ccxt/issues/5674
-        const request = {
-            'clientOrderId': id,
-        };
-        return await this.tradingPostCancelOrder (this.extend (request, params));
-    }
-
-    parseOrderStatus (status) {
-        const statuses = {
-            'new': 'open',
-            'partiallyFilled': 'open',
-            'filled': 'closed',
-            'canceled': 'canceled',
-            'rejected': 'rejected',
-            'expired': 'expired',
-        };
-        return this.safeString (statuses, status);
-    }
-
-    parseOrder (order, market = undefined) {
-        let timestamp = this.safeInteger (order, 'lastTimestamp');
-        if (timestamp === undefined) {
-            timestamp = this.safeInteger (order, 'timestamp');
-        }
-        let symbol = undefined;
-        if (market === undefined) {
-            market = this.markets_by_id[order['symbol']];
-        }
-        const status = this.parseOrderStatus (this.safeString (order, 'orderStatus'));
-        let price = this.safeFloat (order, 'orderPrice');
-        price = this.safeFloat (order, 'price', price);
-        price = this.safeFloat (order, 'avgPrice', price);
-        let amount = this.safeFloat (order, 'orderQuantity');
-        amount = this.safeFloat (order, 'quantity', amount);
-        let remaining = this.safeFloat (order, 'quantityLeaves');
-        remaining = this.safeFloat (order, 'leavesQuantity', remaining);
-        let filled = undefined;
-        let cost = undefined;
-        const amountDefined = (amount !== undefined);
-        const remainingDefined = (remaining !== undefined);
-        if (market !== undefined) {
-            symbol = market['symbol'];
-            if (amountDefined) {
-                amount *= market['lot'];
-            }
-            if (remainingDefined) {
-                remaining *= market['lot'];
-            }
-        } else {
-            const marketId = this.safeString (order, 'symbol');
-            if (marketId in this.markets_by_id) {
-                market = this.markets_by_id[marketId];
-            }
-        }
-        if (amountDefined) {
-            if (remainingDefined) {
-                filled = amount - remaining;
-                if (price !== undefined) {
-                    cost = price * filled;
-                }
-            }
-        }
-        const feeCost = this.safeFloat (order, 'fee');
-        let feeCurrency = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-            feeCurrency = market['quote'];
-        }
-        const fee = {
-            'cost': feeCost,
-            'currency': feeCurrency,
-            'rate': undefined,
-        };
-        // we use clientOrderId as the order id with HitBTC intentionally
-        // because most of their endpoints will require clientOrderId
-        // explained here: https://github.com/ccxt/ccxt/issues/5674
-        const id = this.safeString (order, 'clientOrderId');
-        const type = this.safeString (order, 'type');
-        const side = this.safeString (order, 'side');
-        return {
-            'id': id,
-            'info': order,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'lastTradeTimestamp': undefined,
-            'status': status,
-            'symbol': symbol,
-            'type': type,
-            'side': side,
-            'price': price,
-            'cost': cost,
-            'amount': amount,
-            'filled': filled,
-            'remaining': remaining,
-            'fee': fee,
-        };
-    }
-
-    async fetchOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        // we use clientOrderId as the order id with HitBTC intentionally
-        // because most of their endpoints will require clientOrderId
-        // explained here: https://github.com/ccxt/ccxt/issues/5674
-        const request = {
-            'clientOrderId': id,
-        };
-        const response = await this.tradingGetOrder (this.extend (request, params));
-        if (response['orders'][0]) {
-            return this.parseOrder (response['orders'][0]);
-        }
-        throw new OrderNotFound (this.id + ' fetchOrder() error: ' + this.response);
-    }
-
-    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const statuses = [ 'new', 'partiallyFiiled' ];
-        let market = undefined;
-        const request = {
-            'sort': 'desc',
-            'statuses': statuses.join (','),
-        };
-        if (symbol !== undefined) {
-            market = this.market (symbol);
-            request['symbols'] = market['id'];
-        }
-        const response = await this.tradingGetOrdersActive (this.extend (request, params));
-        return this.parseOrders (response['orders'], market, since, limit);
-    }
-
-    async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        let market = undefined;
-        const statuses = [ 'filled', 'canceled', 'rejected', 'expired' ];
-        const request = {
-            'sort': 'desc',
-            'statuses': statuses.join (','),
-            'max_results': 1000,
-        };
-        if (symbol !== undefined) {
-            market = this.market (symbol);
-            request['symbols'] = market['id'];
-        }
-        const response = await this.tradingGetOrdersRecent (this.extend (request, params));
-        return this.parseOrders (response['orders'], market, since, limit);
-    }
-
-    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        let market = undefined;
-        if (symbol !== undefined) {
-            market = this.market (symbol);
-        }
-        // we use clientOrderId as the order id with HitBTC intentionally
-        // because most of their endpoints will require clientOrderId
-        // explained here: https://github.com/ccxt/ccxt/issues/5674
-        const request = {
-            'clientOrderId': id,
-        };
-        const response = await this.tradingGetTradesByOrder (this.extend (request, params));
-        return this.parseTrades (response['trades'], market, since, limit);
-    }
-
-    async withdraw (code, amount, address, tag = undefined, params = {}) {
-        this.checkAddress (address);
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        const request = {
-            'currency_code': currency['id'],
-            'amount': amount,
-            'address': address,
-        };
-        if (tag !== undefined) {
-            request['extra_id'] = tag;
-        }
-        const response = await this.paymentPostPayout (this.extend (request, params));
-        return {
-            'info': response,
-            'id': response['transaction'],
-        };
-    }
-
-    nonce () {
-        return this.milliseconds ();
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = '/' + 'api' + '/' + this.version + '/' + api + '/' + this.implodeParams (path, params);
-        let query = this.omit (params, this.extractParams (path));
-        if (api === 'public') {
-            if (Object.keys (query).length) {
-                url += '?' + this.urlencode (query);
-            }
-        } else {
-            this.checkRequiredCredentials ();
-            const nonce = this.nonce ();
-            const payload = { 'nonce': nonce, 'apikey': this.apiKey };
-            query = this.extend (payload, query);
-            if (method === 'GET') {
-                url += '?' + this.urlencode (query);
-            } else {
-                url += '?' + this.urlencode (payload);
-            }
-            let auth = url;
-            if (method === 'POST') {
-                if (Object.keys (query).length) {
-                    body = this.urlencode (query);
-                    auth += body;
-                }
-            }
-            headers = {
-                'Content-Type': 'application/x-www-form-urlencoded',
-                'X-Signature': this.hmac (this.encode (auth), this.encode (this.secret), 'sha512').toLowerCase (),
-            };
-        }
-        url = this.urls['api'] + url;
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-
-    async request (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        const response = await this.fetch2 (path, api, method, params, headers, body);
-        if ('code' in response) {
-            if ('ExecutionReport' in response) {
-                if (response['ExecutionReport']['orderRejectReason'] === 'orderExceedsLimit') {
-                    throw new InsufficientFunds (this.id + ' ' + this.json (response));
-                }
-            }
-            throw new ExchangeError (this.id + ' ' + this.json (response));
-        }
-        return response;
-    }
-
-    handleErrors (httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody) {
-        if (!response) {
-            return; // fallback to default error handler
-        }
-        const error = this.safeValue (response, 'error');
-        if (error) {
-            const code = this.safeValue (error, 'code');
-            const feedback = this.id + ' ' + body;
-            this.throwExactlyMatchedException (this.exceptions['exact'], code, feedback);
-            this.throwBroadlyMatchedException (this.exceptions['broad'], error, feedback);
-            throw new ExchangeError (feedback); // unknown error
-        }
-    }
-};
-
-},{"./base/Exchange":7,"./base/errors":9}],92:[function(require,module,exports){
-'use strict';
-
-// ---------------------------------------------------------------------------
-
-const hitbtc = require ('./hitbtc');
-const { BadSymbol, PermissionDenied, ExchangeError, ExchangeNotAvailable, OrderNotFound, InsufficientFunds, InvalidOrder, RequestTimeout, AuthenticationError } = require ('./base/errors');
-const { TRUNCATE, DECIMAL_PLACES } = require ('./base/functions/number');
-// ---------------------------------------------------------------------------
-
-module.exports = class hitbtc2 extends hitbtc {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'hitbtc2',
-            'name': 'HitBTC',
-            'countries': [ 'HK' ],
-            'rateLimit': 1500,
             'version': '2',
+            'pro': true,
             'has': {
                 'createDepositAddress': true,
                 'fetchDepositAddress': true,
@@ -55513,7 +57744,10 @@ module.exports = class hitbtc2 extends hitbtc {
             },
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/27766555-8eaec20e-5edc-11e7-9c5b-6dc69fc42f5e.jpg',
-                'api': 'https://api.hitbtc.com',
+                'api': {
+                    'public': 'https://api.hitbtc.com',
+                    'private': 'https://api.hitbtc.com',
+                },
                 'www': 'https://hitbtc.com',
                 'referral': 'https://hitbtc.com/?ref_id=5a5d39a65d466',
                 'doc': [
@@ -56006,6 +58240,20 @@ module.exports = class hitbtc2 extends hitbtc {
             'options': {
                 'defaultTimeInForce': 'FOK',
             },
+            'commonCurrencies': {
+                'BET': 'DAO.Casino',
+                'CAT': 'BitClave',
+                'CPT': 'Cryptaur', // conflict with CPT = Contents Protocol https://github.com/ccxt/ccxt/issues/4920 and https://github.com/ccxt/ccxt/issues/6081
+                'DRK': 'DASH',
+                'EMGO': 'MGO',
+                'GET': 'Themis',
+                'HSR': 'HC',
+                'LNC': 'LinkerCoin',
+                'PLA': 'PlayChip',
+                'UNC': 'Unigame',
+                'USD': 'USDT',
+                'XBT': 'BTC',
+            },
             'exceptions': {
                 '504': RequestTimeout, // {"error":{"code":504,"message":"Gateway Timeout"}}
                 '1002': AuthenticationError, // {"error":{"code":1002,"message":"Authorization failed","description":""}}
@@ -56176,14 +58424,13 @@ module.exports = class hitbtc2 extends hitbtc {
     }
 
     parseOHLCV (ohlcv, market = undefined, timeframe = '1d', since = undefined, limit = undefined) {
-        const timestamp = this.parse8601 (ohlcv['timestamp']);
         return [
-            timestamp,
-            parseFloat (ohlcv['open']),
-            parseFloat (ohlcv['max']),
-            parseFloat (ohlcv['min']),
-            parseFloat (ohlcv['close']),
-            parseFloat (ohlcv['volume']),
+            this.parse8601 (this.safeString (ohlcv, 'timestamp')),
+            this.safeFloat (ohlcv, 'open'),
+            this.safeFloat (ohlcv, 'max'),
+            this.safeFloat (ohlcv, 'min'),
+            this.safeFloat (ohlcv, 'close'),
+            this.safeFloat (ohlcv, 'volume'),
         ];
     }
 
@@ -56638,6 +58885,7 @@ module.exports = class hitbtc2 extends hitbtc {
         // because most of their endpoints will require clientOrderId
         // explained here: https://github.com/ccxt/ccxt/issues/5674
         const id = this.safeString (order, 'clientOrderId');
+        const clientOrderId = id;
         let price = this.safeFloat (order, 'price');
         if (price === undefined) {
             if (id in this.orders) {
@@ -56693,6 +58941,7 @@ module.exports = class hitbtc2 extends hitbtc {
         }
         return {
             'id': id,
+            'clientOrderId': clientOrderId, // https://github.com/ccxt/ccxt/issues/5674
             'timestamp': created,
             'datetime': this.iso8601 (created),
             'lastTradeTimestamp': updated,
@@ -56906,6 +59155,10 @@ module.exports = class hitbtc2 extends hitbtc {
         };
     }
 
+    nonce () {
+        return this.milliseconds ();
+    }
+
     sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
         let url = '/api/' + this.version + '/';
         const query = this.omit (params, this.extractParams (path));
@@ -56931,7 +59184,7 @@ module.exports = class hitbtc2 extends hitbtc {
                 'Content-Type': 'application/json',
             };
         }
-        url = this.urls['api'] + url;
+        url = this.urls['api'][api] + url;
         return { 'url': url, 'method': method, 'body': body, 'headers': headers };
     }
 
@@ -56966,7 +59219,26 @@ module.exports = class hitbtc2 extends hitbtc {
     }
 };
 
-},{"./base/errors":9,"./base/functions/number":15,"./hitbtc":91}],93:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],91:[function(require,module,exports){
+'use strict';
+
+// ---------------------------------------------------------------------------
+
+const hitbtc = require ('./hitbtc');
+
+// ---------------------------------------------------------------------------
+
+module.exports = class hitbtc2 extends hitbtc {
+    describe () {
+        // this is a temporary stub for backward compatibility
+        // https://github.com/ccxt/ccxt/issues/6678
+        return this.deepExtend (super.describe (), {
+            'id': 'hitbtc2',
+        });
+    }
+};
+
+},{"./hitbtc":90}],92:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -57723,6 +59995,7 @@ module.exports = class hollaex extends Exchange {
         const status = (type === 'market') ? 'closed' : 'open';
         const result = {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -57738,6 +60011,7 @@ module.exports = class hollaex extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': order,
+            'average': undefined,
         };
         return result;
     }
@@ -57774,7 +60048,7 @@ module.exports = class hollaex extends Exchange {
     async cancelOrder (id, symbol = undefined, params = {}) {
         await this.loadMarkets ();
         const request = {
-            'orderId': id,
+            'order_id': id,
         };
         const response = await this.privateDeleteUserOrdersOrderId (this.extend (request, params));
         //
@@ -58196,7 +60470,7 @@ module.exports = class hollaex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],94:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],93:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -58217,11 +60491,12 @@ module.exports = class huobipro extends Exchange {
             'version': 'v1',
             'accounts': undefined,
             'accountsById': undefined,
-            'hostname': 'api.huobi.pro',
+            'hostname': 'api.huobi.pro', // api.testnet.huobi.pro
+            'pro': true,
             'has': {
                 'CORS': false,
                 'fetchTickers': true,
-                'fetchDepositAddress': false,
+                'fetchDepositAddress': true,
                 'fetchOHLCV': true,
                 'fetchOrder': true,
                 'fetchOrders': true,
@@ -58247,12 +60522,18 @@ module.exports = class huobipro extends Exchange {
                 '1y': '1year',
             },
             'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766569-15aa7b9a-5edd-11e7-9e7f-44791f4ee49c.jpg',
+                'test': {
+                    'market': 'https://api.testnet.huobi.pro',
+                    'public': 'https://api.testnet.huobi.pro',
+                    'private': 'https://api.testnet.huobi.pro',
+                },
+                'logo': 'https://user-images.githubusercontent.com/1294454/76137448-22748a80-604e-11ea-8069-6e389271911d.jpg',
                 'api': {
                     'market': 'https://{hostname}',
                     'public': 'https://{hostname}',
                     'private': 'https://{hostname}',
-                    'zendesk': 'https://huobiglobal.zendesk.com/hc/en-us/articles',
+                    'v2Public': 'https://{hostname}',
+                    'v2Private': 'https://{hostname}',
                 },
                 'www': 'https://www.huobi.pro',
                 'referral': 'https://www.huobi.co/en-us/topic/invited/?invite_code=rwrd3',
@@ -58260,9 +60541,19 @@ module.exports = class huobipro extends Exchange {
                 'fees': 'https://www.huobi.pro/about/fee/',
             },
             'api': {
-                'zendesk': {
+                'v2Public': {
                     'get': [
-                        '360000400491-Trade-Limits',
+                        'reference/currencies',
+                    ],
+                },
+                'v2Private': {
+                    'get': [
+                        'account/withdraw/quota',
+                        'account/deposit/address',
+                        'reference/transact-fee-rate',
+                    ],
+                    'post': [
+                        'sub-user/management',
                     ],
                 },
                 'market': {
@@ -58286,10 +60577,6 @@ module.exports = class huobipro extends Exchange {
                     ],
                 },
                 'private': {
-                    // todo add v2 endpoints
-                    // 'GET /v2/account/withdraw/quota
-                    // 'GET /v2/reference/currencies
-                    // 'GET /v2/account/deposit/address
                     'get': [
                         'account/accounts', // 查询当前用户的所有账户(即account-id)
                         'account/accounts/{id}/balance', // 查询指定账户的余额
@@ -58314,8 +60601,6 @@ module.exports = class huobipro extends Exchange {
                         'stable-coin/exchange_rate',
                         'stable-coin/quote',
                     ],
-                    // todo add v2 endpoints
-                    // POST /v2/sub-user/management
                     'post': [
                         'futures/transfer',
                         'order/batch-orders',
@@ -58351,12 +60636,14 @@ module.exports = class huobipro extends Exchange {
             'exceptions': {
                 'exact': {
                     // err-code
+                    'bad-request': BadRequest,
                     'api-not-support-temp-addr': PermissionDenied, // {"status":"error","err-code":"api-not-support-temp-addr","err-msg":"API withdrawal does not support temporary addresses","data":null}
                     'timeout': RequestTimeout, // {"ts":1571653730865,"status":"error","err-code":"timeout","err-msg":"Request Timeout"}
                     'gateway-internal-error': ExchangeNotAvailable, // {"status":"error","err-code":"gateway-internal-error","err-msg":"Failed to load data. Try again later.","data":null}
                     'account-frozen-balance-insufficient-error': InsufficientFunds, // {"status":"error","err-code":"account-frozen-balance-insufficient-error","err-msg":"trade account balance is not enough, left: `0.0027`","data":null}
                     'invalid-amount': InvalidOrder, // eg "Paramemter `amount` is invalid."
                     'order-limitorder-amount-min-error': InvalidOrder, // limit order amount error, min: `0.001`
+                    'order-limitorder-amount-max-error': InvalidOrder, // market order amount error, max: `1000000`
                     'order-marketorder-amount-min-error': InvalidOrder, // market order amount error, min: `0.01`
                     'order-limitorder-price-min-error': InvalidOrder, // limit order price error
                     'order-limitorder-price-max-error': InvalidOrder, // limit order price error
@@ -58519,6 +60806,21 @@ module.exports = class huobipro extends Exchange {
     }
 
     parseTicker (ticker, market = undefined) {
+        //
+        //     {
+        //         "amount": 26228.672978342216,
+        //         "open": 9078.95,
+        //         "close": 9146.86,
+        //         "high": 9155.41,
+        //         "id": 209988544334,
+        //         "count": 265846,
+        //         "low": 8988.0,
+        //         "version": 209988544334,
+        //         "ask": [ 9146.87, 0.156134 ],
+        //         "vol": 2.3822168242201668E8,
+        //         "bid": [ 9146.86, 0.080758 ],
+        //     }
+        //
         let symbol = undefined;
         if (market !== undefined) {
             symbol = market['symbol'];
@@ -58590,13 +60892,35 @@ module.exports = class huobipro extends Exchange {
             'type': 'step0',
         };
         const response = await this.marketGetDepth (this.extend (request, params));
+        //
+        //     {
+        //         "status": "ok",
+        //         "ch": "market.btcusdt.depth.step0",
+        //         "ts": 1583474832790,
+        //         "tick": {
+        //             "bids": [
+        //                 [ 9100.290000000000000000, 0.200000000000000000 ],
+        //                 [ 9099.820000000000000000, 0.200000000000000000 ],
+        //                 [ 9099.610000000000000000, 0.205000000000000000 ],
+        //             ],
+        //             "asks": [
+        //                 [ 9100.640000000000000000, 0.005904000000000000 ],
+        //                 [ 9101.010000000000000000, 0.287311000000000000 ],
+        //                 [ 9101.030000000000000000, 0.012121000000000000 ],
+        //             ],
+        //             "ts":1583474832008,
+        //             "version":104999698780
+        //         }
+        //     }
+        //
         if ('tick' in response) {
             if (!response['tick']) {
                 throw new ExchangeError (this.id + ' fetchOrderBook() returned empty response: ' + this.json (response));
             }
-            const orderbook = this.safeValue (response, 'tick');
-            const result = this.parseOrderBook (orderbook, orderbook['ts']);
-            result['nonce'] = orderbook['version'];
+            const tick = this.safeValue (response, 'tick');
+            const timestamp = this.safeInteger (tick, 'ts', this.safeInteger (response, 'ts'));
+            const result = this.parseOrderBook (tick, timestamp);
+            result['nonce'] = this.safeInteger (tick, 'version');
             return result;
         }
         throw new ExchangeError (this.id + ' fetchOrderBook() returned unrecognized response: ' + this.json (response));
@@ -58609,6 +60933,26 @@ module.exports = class huobipro extends Exchange {
             'symbol': market['id'],
         };
         const response = await this.marketGetDetailMerged (this.extend (request, params));
+        //
+        //     {
+        //         "status": "ok",
+        //         "ch": "market.btcusdt.detail.merged",
+        //         "ts": 1583494336669,
+        //         "tick": {
+        //             "amount": 26228.672978342216,
+        //             "open": 9078.95,
+        //             "close": 9146.86,
+        //             "high": 9155.41,
+        //             "id": 209988544334,
+        //             "count": 265846,
+        //             "low": 8988.0,
+        //             "version": 209988544334,
+        //             "ask": [ 9146.87, 0.156134 ],
+        //             "vol": 2.3822168242201668E8,
+        //             "bid": [ 9146.86, 0.080758 ],
+        //         }
+        //     }
+        //
         const ticker = this.parseTicker (response['tick'], market);
         const timestamp = this.safeValue (response, 'ts');
         ticker['timestamp'] = timestamp;
@@ -58634,10 +60978,24 @@ module.exports = class huobipro extends Exchange {
                 result[symbol] = ticker;
             }
         }
-        return result;
+        return this.filterByArray (result, 'symbol', symbols);
     }
 
     parseTrade (trade, market = undefined) {
+        //
+        // fetchTrades (public)
+        //
+        //     {
+        //         "amount": 0.010411000000000000,
+        //         "trade-id": 102090736910,
+        //         "ts": 1583497692182,
+        //         "id": 10500517034273194594947,
+        //         "price": 9096.050000000000000000,
+        //         "direction": "sell"
+        //     }
+        //
+        // fetchMyTrades (private)
+        //
         let symbol = undefined;
         if (market === undefined) {
             const marketId = this.safeString (trade, 'symbol');
@@ -58685,7 +61043,8 @@ module.exports = class huobipro extends Exchange {
                 'currency': feeCurrency,
             };
         }
-        const id = this.safeString (trade, 'id');
+        const tradeId = this.safeString2 (trade, 'trade-id', 'tradeId');
+        const id = this.safeString (trade, 'id', tradeId);
         return {
             'id': id,
             'info': trade,
@@ -58732,6 +61091,30 @@ module.exports = class huobipro extends Exchange {
             request['size'] = limit;
         }
         const response = await this.marketGetHistoryTrade (this.extend (request, params));
+        //
+        //     {
+        //         "status": "ok",
+        //         "ch": "market.btcusdt.trade.detail",
+        //         "ts": 1583497692365,
+        //         "data": [
+        //             {
+        //                 "id": 105005170342,
+        //                 "ts": 1583497692182,
+        //                 "data": [
+        //                     {
+        //                         "amount": 0.010411000000000000,
+        //                         "trade-id": 102090736910,
+        //                         "ts": 1583497692182,
+        //                         "id": 10500517034273194594947,
+        //                         "price": 9096.050000000000000000,
+        //                         "direction": "sell"
+        //                     }
+        //                 ]
+        //             },
+        //             // ...
+        //         ]
+        //     }
+        //
         const data = this.safeValue (response, 'data');
         let result = [];
         for (let i = 0; i < data.length; i++) {
@@ -59099,6 +61482,7 @@ module.exports = class huobipro extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -59113,6 +61497,7 @@ module.exports = class huobipro extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
@@ -59167,6 +61552,8 @@ module.exports = class huobipro extends Exchange {
             'cost': undefined,
             'trades': undefined,
             'fee': undefined,
+            'clientOrderId': undefined,
+            'average': undefined,
         };
     }
 
@@ -59206,94 +61593,50 @@ module.exports = class huobipro extends Exchange {
         };
     }
 
-    async withdraw (code, amount, address, tag = undefined, params = {}) {
-        await this.loadMarkets ();
+    parseDepositAddress (depositAddress, currency = undefined) {
+        //
+        //     {
+        //         currency: "eth",
+        //         address: "0xf7292eb9ba7bc50358e27f0e025a4d225a64127b",
+        //         addressTag: "",
+        //         chain: "eth"
+        //     }
+        //
+        const address = this.safeString (depositAddress, 'address');
+        const tag = this.safeString (depositAddress, 'addressTag');
+        const currencyId = this.safeString (depositAddress, 'currency');
+        const code = this.safeCurrencyCode (currencyId);
         this.checkAddress (address);
+        return {
+            'currency': code,
+            'address': address,
+            'tag': tag,
+            'info': depositAddress,
+        };
+    }
+
+    async fetchDepositAddress (code, params = {}) {
+        await this.loadMarkets ();
         const currency = this.currency (code);
         const request = {
-            'address': address, // only supports existing addresses in your withdraw address list
-            'amount': amount,
-            'currency': currency['id'].toLowerCase (),
+            'currency': currency['id'],
         };
-        if (tag !== undefined) {
-            request['addr-tag'] = tag; // only for XRP?
-        }
-        const response = await this.privatePostDwWithdrawApiCreate (this.extend (request, params));
-        const id = this.safeString (response, 'data');
-        return {
-            'info': response,
-            'id': id,
-        };
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = '/';
-        if (api === 'market') {
-            url += api;
-        } else if ((api === 'public') || (api === 'private')) {
-            url += this.version;
-        }
-        url += '/' + this.implodeParams (path, params);
-        const query = this.omit (params, this.extractParams (path));
-        if (api === 'private') {
-            this.checkRequiredCredentials ();
-            const timestamp = this.ymdhms (this.milliseconds (), 'T');
-            let request = {
-                'SignatureMethod': 'HmacSHA256',
-                'SignatureVersion': '2',
-                'AccessKeyId': this.apiKey,
-                'Timestamp': timestamp,
-            };
-            if (method !== 'POST') {
-                request = this.extend (request, query);
-            }
-            request = this.keysort (request);
-            let auth = this.urlencode (request);
-            // unfortunately, PHP demands double quotes for the escaped newline symbol
-            // eslint-disable-next-line quotes
-            const payload = [ method, this.hostname, url, auth ].join ("\n");
-            const signature = this.hmac (this.encode (payload), this.encode (this.secret), 'sha256', 'base64');
-            auth += '&' + this.urlencode ({ 'Signature': signature });
-            url += '?' + auth;
-            if (method === 'POST') {
-                body = this.json (query);
-                headers = {
-                    'Content-Type': 'application/json',
-                };
-            } else {
-                headers = {
-                    'Content-Type': 'application/x-www-form-urlencoded',
-                };
-            }
-        } else {
-            if (Object.keys (params).length) {
-                url += '?' + this.urlencode (params);
-            }
-        }
-        url = this.implodeParams (this.urls['api'][api], {
-            'hostname': this.hostname,
-        }) + url;
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-
-    handleErrors (httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody) {
-        if (response === undefined) {
-            return; // fallback to default error handler
-        }
-        if ('status' in response) {
-            //
-            //     {"status":"error","err-code":"order-limitorder-amount-min-error","err-msg":"limit order amount error, min: `0.001`","data":null}
-            //
-            const status = this.safeString (response, 'status');
-            if (status === 'error') {
-                const code = this.safeString (response, 'err-code');
-                const feedback = this.id + ' ' + body;
-                this.throwExactlyMatchedException (this.exceptions['exact'], code, feedback);
-                const message = this.safeString (response, 'err-msg');
-                this.throwExactlyMatchedException (this.exceptions['exact'], message, feedback);
-                throw new ExchangeError (feedback);
-            }
-        }
+        const response = await this.v2PrivateGetAccountDepositAddress (this.extend (request, params));
+        //
+        //     {
+        //         code: 200,
+        //         data: [
+        //             {
+        //                 currency: "eth",
+        //                 address: "0xf7292eb9ba7bc50358e27f0e025a4d225a64127b",
+        //                 addressTag: "",
+        //                 chain: "eth"
+        //             }
+        //         ]
+        //     }
+        //
+        const data = this.safeValue (response, 'data', []);
+        return this.parseDepositAddress (this.safeValue (data, 0, {}), currency);
     }
 
     async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
@@ -59437,9 +61780,101 @@ module.exports = class huobipro extends Exchange {
         };
         return this.safeString (statuses, status, status);
     }
+
+    async withdraw (code, amount, address, tag = undefined, params = {}) {
+        await this.loadMarkets ();
+        this.checkAddress (address);
+        const currency = this.currency (code);
+        const request = {
+            'address': address, // only supports existing addresses in your withdraw address list
+            'amount': amount,
+            'currency': currency['id'].toLowerCase (),
+        };
+        if (tag !== undefined) {
+            request['addr-tag'] = tag; // only for XRP?
+        }
+        const response = await this.privatePostDwWithdrawApiCreate (this.extend (request, params));
+        const id = this.safeString (response, 'data');
+        return {
+            'info': response,
+            'id': id,
+        };
+    }
+
+    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
+        let url = '/';
+        if (api === 'market') {
+            url += api;
+        } else if ((api === 'public') || (api === 'private')) {
+            url += this.version;
+        } else if ((api === 'v2Public') || (api === 'v2Private')) {
+            url += 'v2';
+        }
+        url += '/' + this.implodeParams (path, params);
+        const query = this.omit (params, this.extractParams (path));
+        if (api === 'private' || api === 'v2Private') {
+            this.checkRequiredCredentials ();
+            const timestamp = this.ymdhms (this.milliseconds (), 'T');
+            let request = {
+                'SignatureMethod': 'HmacSHA256',
+                'SignatureVersion': '2',
+                'AccessKeyId': this.apiKey,
+                'Timestamp': timestamp,
+            };
+            if (method !== 'POST') {
+                request = this.extend (request, query);
+            }
+            request = this.keysort (request);
+            let auth = this.urlencode (request);
+            // unfortunately, PHP demands double quotes for the escaped newline symbol
+            // eslint-disable-next-line quotes
+            const payload = [ method, this.hostname, url, auth ].join ("\n");
+            const signature = this.hmac (this.encode (payload), this.encode (this.secret), 'sha256', 'base64');
+            auth += '&' + this.urlencode ({ 'Signature': signature });
+            url += '?' + auth;
+            if (method === 'POST') {
+                body = this.json (query);
+                headers = {
+                    'Content-Type': 'application/json',
+                };
+            } else {
+                headers = {
+                    'Content-Type': 'application/x-www-form-urlencoded',
+                };
+            }
+        } else {
+            if (Object.keys (params).length) {
+                url += '?' + this.urlencode (params);
+            }
+        }
+        url = this.implodeParams (this.urls['api'][api], {
+            'hostname': this.hostname,
+        }) + url;
+        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
+    }
+
+    handleErrors (httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody) {
+        if (response === undefined) {
+            return; // fallback to default error handler
+        }
+        if ('status' in response) {
+            //
+            //     {"status":"error","err-code":"order-limitorder-amount-min-error","err-msg":"limit order amount error, min: `0.001`","data":null}
+            //
+            const status = this.safeString (response, 'status');
+            if (status === 'error') {
+                const code = this.safeString (response, 'err-code');
+                const feedback = this.id + ' ' + body;
+                this.throwExactlyMatchedException (this.exceptions['exact'], code, feedback);
+                const message = this.safeString (response, 'err-msg');
+                this.throwExactlyMatchedException (this.exceptions['exact'], message, feedback);
+                throw new ExchangeError (feedback);
+            }
+        }
+    }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],95:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],94:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -59455,12 +61890,13 @@ module.exports = class huobiru extends huobipro {
             'name': 'Huobi Russia',
             'countries': [ 'RU' ],
             'hostname': 'www.huobi.com.ru',
+            'pro': true,
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/52978816-e8552e00-33e3-11e9-98ed-845acfece834.jpg',
                 'api': {
-                    'market': 'https://www.huobi.com.ru/api',
-                    'public': 'https://www.huobi.com.ru/api',
-                    'private': 'https://www.huobi.com.ru/api',
+                    'market': 'https://{hostname}/api',
+                    'public': 'https://{hostname}/api',
+                    'private': 'https://{hostname}/api',
                     'zendesk': 'https://huobiglobal.zendesk.com/hc/en-us/articles',
                 },
                 'www': 'https://www.huobi.com.ru/ru-ru',
@@ -59472,13 +61908,13 @@ module.exports = class huobiru extends huobipro {
     }
 };
 
-},{"./huobipro.js":94}],96:[function(require,module,exports){
+},{"./huobipro.js":93}],95:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError, AuthenticationError } = require ('./base/errors');
+const { ExchangeError, AuthenticationError, ArgumentsRequired } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -59591,6 +62027,7 @@ module.exports = class ice3x extends Exchange {
                     },
                 },
                 'info': currency,
+                'fee': undefined,
             };
         }
         return result;
@@ -59623,6 +62060,8 @@ module.exports = class ice3x extends Exchange {
                 'quoteId': quoteId,
                 'active': undefined,
                 'info': market,
+                'precision': this.precision,
+                'limits': this.limits,
             });
         }
         return result;
@@ -59693,7 +62132,7 @@ module.exports = class ice3x extends Exchange {
             const type = this.safeString (params, 'type');
             if ((type !== 'ask') && (type !== 'bid')) {
                 // eslint-disable-next-line quotes
-                throw new ExchangeError (this.id + " fetchOrderBook requires an exchange-specific extra 'type' param ('bid' or 'ask') when used with a limit");
+                throw new ArgumentsRequired (this.id + " fetchOrderBook requires an exchange-specific extra 'type' param ('bid' or 'ask') when used with a limit");
             } else {
                 request['items_per_page'] = limit;
             }
@@ -59805,6 +62244,7 @@ module.exports = class ice3x extends Exchange {
         }
         return {
             'id': this.safeString (order, 'order_id'),
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -59820,6 +62260,7 @@ module.exports = class ice3x extends Exchange {
             'trades': undefined,
             'fee': fee,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -59951,7 +62392,7 @@ module.exports = class ice3x extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],97:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],96:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -60714,6 +63155,7 @@ module.exports = class idex extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -60725,6 +63167,10 @@ module.exports = class idex extends Exchange {
             'remaining': remaining,
             'cost': cost,
             'status': status,
+            'lastTradeTimestamp': undefined,
+            'average': undefined,
+            'trades': undefined,
+            'fee': undefined,
         };
     }
 
@@ -61038,7 +63484,7 @@ module.exports = class idex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],98:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],97:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -61138,6 +63584,9 @@ module.exports = class independentreserve extends Exchange {
                     'baseId': baseId,
                     'quoteId': quoteId,
                     'info': id,
+                    'active': undefined,
+                    'precision': this.precision,
+                    'limits': this.limits,
                 });
             }
         }
@@ -61215,6 +63664,21 @@ module.exports = class independentreserve extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "OrderGuid": "c7347e4c-b865-4c94-8f74-d934d4b0b177",
+        //         "CreatedTimestampUtc": "2014-09-23T12:39:34.3817763Z",
+        //         "Type": "MarketBid",
+        //         "VolumeOrdered": 5.0,
+        //         "VolumeFilled": 5.0,
+        //         "Price": null,
+        //         "AvgPrice": 100.0,
+        //         "ReservedAmount": 0.0,
+        //         "Status": "Filled",
+        //         "PrimaryCurrencyCode": "Xbt",
+        //         "SecondaryCurrencyCode": "Usd"
+        //     }
+        //
         let symbol = undefined;
         const baseId = this.safeString (order, 'PrimaryCurrencyCode');
         const quoteId = this.safeString (order, 'PrimaryCurrencyCode');
@@ -61271,6 +63735,7 @@ module.exports = class independentreserve extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -61285,6 +63750,7 @@ module.exports = class independentreserve extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
@@ -61452,7 +63918,7 @@ module.exports = class independentreserve extends Exchange {
     }
 };
 
-},{"./base/Exchange":7}],99:[function(require,module,exports){
+},{"./base/Exchange":8}],98:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -61735,6 +64201,16 @@ module.exports = class indodax extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "order_id": "12345",
+        //         "submit_time": "1392228122",
+        //         "price": "8000000",
+        //         "type": "sell",
+        //         "order_ltc": "100000000",
+        //         "remain_ltc": "100000000"
+        //     }
+        //
         let side = undefined;
         if ('type' in order) {
             side = order['type'];
@@ -61786,6 +64262,7 @@ module.exports = class indodax extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -61800,12 +64277,13 @@ module.exports = class indodax extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
     async fetchOrder (id, symbol = undefined, params = {}) {
         if (symbol === undefined) {
-            throw new ExchangeError (this.id + ' fetchOrder requires a symbol');
+            throw new ArgumentsRequired (this.id + ' fetchOrder requires a symbol');
         }
         await this.loadMarkets ();
         const market = this.market (symbol);
@@ -61852,7 +64330,7 @@ module.exports = class indodax extends Exchange {
 
     async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
         if (symbol === undefined) {
-            throw new ExchangeError (this.id + ' fetchOrders requires a symbol');
+            throw new ArgumentsRequired (this.id + ' fetchOrders requires a symbol argument');
         }
         await this.loadMarkets ();
         const request = {};
@@ -61901,7 +64379,7 @@ module.exports = class indodax extends Exchange {
         }
         const side = this.safeValue (params, 'side');
         if (side === undefined) {
-            throw new ExchangeError (this.id + ' cancelOrder requires an extra "side" param');
+            throw new ArgumentsRequired (this.id + ' cancelOrder requires an extra "side" param');
         }
         await this.loadMarkets ();
         const market = this.market (symbol);
@@ -62007,13 +64485,13 @@ module.exports = class indodax extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],100:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],99:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError, AuthenticationError } = require ('./base/errors');
+const { ExchangeError, AuthenticationError, ArgumentsRequired } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -62223,6 +64701,7 @@ module.exports = class itbit extends Exchange {
             'price': price,
             'amount': amount,
             'cost': cost,
+            'fee': undefined,
         };
         if (feeCost !== undefined) {
             if (rebatesApplied !== undefined) {
@@ -62263,7 +64742,7 @@ module.exports = class itbit extends Exchange {
         await this.loadMarkets ();
         const walletId = this.safeString (params, 'walletId');
         if (walletId === undefined) {
-            throw new ExchangeError (this.id + ' fetchMyTrades requires a walletId parameter');
+            throw new ArgumentsRequired (this.id + ' fetchMyTrades requires a walletId parameter');
         }
         const request = {
             'walletId': walletId,
@@ -62482,19 +64961,51 @@ module.exports = class itbit extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
-        const side = order['side'];
-        const type = order['type'];
+        //
+        //     {
+        //         "id": "13d6af57-8b0b-41e5-af30-becf0bcc574d",
+        //         "walletId": "7e037345-1288-4c39-12fe-d0f99a475a98",
+        //         "side": "buy",
+        //         "instrument": "XBTUSD",
+        //         "type": "limit",
+        //         "currency": "XBT",
+        //         "amount": "2.50000000",
+        //         "displayAmount": "2.50000000",
+        //         "price": "650.00000000",
+        //         "volumeWeightedAveragePrice": "0.00000000",
+        //         "amountFilled": "0.00000000",
+        //         "createdTime": "2014-02-11T17:05:15Z",
+        //         "status": "submitted",
+        //         "funds": null,
+        //         "metadata": {},
+        //         "clientOrderIdentifier": null,
+        //         "postOnly": "False"
+        //     }
+        //
+        const side = this.safeString (order, 'side');
+        const type = this.safeString (order, 'type');
         const symbol = this.markets_by_id[order['instrument']]['symbol'];
         const timestamp = this.parse8601 (order['createdTime']);
         const amount = this.safeFloat (order, 'amount');
         const filled = this.safeFloat (order, 'amountFilled');
-        const remaining = amount - filled;
+        let remaining = undefined;
+        let cost = undefined;
         const fee = undefined;
         const price = this.safeFloat (order, 'price');
         const average = this.safeFloat (order, 'volumeWeightedAveragePrice');
-        const cost = filled * average;
+        if (filled !== undefined) {
+            if (amount !== undefined) {
+                remaining = amount - filled;
+            }
+            if (average !== undefined) {
+                cost = filled * average;
+            }
+        }
+        const clientOrderId = this.safeString (order, 'clientOrderIdentifier');
+        const id = this.safeString (order, 'id');
         return {
-            'id': order['id'],
+            'id': id,
+            'clientOrderId': clientOrderId,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -62511,6 +65022,7 @@ module.exports = class itbit extends Exchange {
             'remaining': remaining,
             'fee': fee,
             // 'trades': this.parseTrades (order['trades'], market),
+            'trades': undefined,
         };
     }
 
@@ -62609,7 +65121,7 @@ module.exports = class itbit extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],101:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],100:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -63011,6 +65523,20 @@ module.exports = class kkex extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "status": 2,
+        //         "source": "NORMAL",
+        //         "amount": "10.852019",
+        //         "create_date": 1523938461036,
+        //         "avg_price": "0.00096104",
+        //         "order_id": "100",
+        //         "price": "0.00096105",
+        //         "type": "buy",
+        //         "symbol": "READBTC",
+        //         "deal_amount": "10.852019"
+        //     }
+        //
         let symbol = undefined;
         if (market !== undefined) {
             symbol = market['symbol'];
@@ -63039,6 +65565,7 @@ module.exports = class kkex extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -63054,6 +65581,7 @@ module.exports = class kkex extends Exchange {
             'remaining': remaining,
             'fee': undefined,
             'info': order,
+            'trades': undefined,
         };
     }
 
@@ -63102,6 +65630,8 @@ module.exports = class kkex extends Exchange {
             'remaining': undefined,
             'trades': undefined,
             'fee': undefined,
+            'clientOrderId': undefined,
+            'average': undefined,
         };
     }
 
@@ -63177,7 +65707,7 @@ module.exports = class kkex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],102:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],101:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -63230,11 +65760,11 @@ module.exports = class kraken extends Exchange {
                 '2w': 21600,
             },
             'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766599-22709304-5ede-11e7-9de1-9f33732e1509.jpg',
+                'logo': 'https://user-images.githubusercontent.com/51840849/76173629-fc67fb00-61b1-11ea-84fe-f2de582f58a3.jpg',
                 'api': {
                     'public': 'https://api.kraken.com',
                     'private': 'https://api.kraken.com',
-                    'zendesk': 'https://support.kraken.com/hc/en-us/articles',
+                    'zendesk': 'https://kraken.zendesk.com/api/v2/help_center/en-us/articles', // use the public zendesk api to receive article bodies and bypass new anti-spam protections
                 },
                 'www': 'https://www.kraken.com',
                 'doc': 'https://www.kraken.com/features/api',
@@ -63329,9 +65859,9 @@ module.exports = class kraken extends Exchange {
                     'get': [
                         // we should really refrain from putting fixed fee numbers and stop hardcoding
                         // we will be using their web APIs to scrape all numbers from these articles
-                        '205893708-What-is-the-minimum-order-size-',
-                        '201396777-What-are-the-deposit-fees-',
-                        '201893608-What-are-the-withdrawal-fees-',
+                        '205893708', // -What-is-the-minimum-order-size-
+                        '360000292886', // -What-are-the-deposit-fees-
+                        '201893608', // -What-are-the-withdrawal-fees-
                     ],
                 },
                 'public': {
@@ -63386,6 +65916,7 @@ module.exports = class kraken extends Exchange {
                 'delistedMarketsById': {},
                 // cannot withdraw/deposit these
                 'inactiveCurrencies': [ 'CAD', 'USD', 'JPY', 'GBP' ],
+                'fetchMinOrderAmounts': true,
             },
             'exceptions': {
                 'EQuery:Invalid asset pair': BadSymbol, // {"error":["EQuery:Invalid asset pair"]}
@@ -63413,8 +65944,10 @@ module.exports = class kraken extends Exchange {
         return this.decimalToPrecision (fee, TRUNCATE, this.markets[symbol]['precision']['amount'], DECIMAL_PLACES);
     }
 
-    async fetchMinOrderAmounts () {
-        const html = await this.zendeskGet205893708WhatIsTheMinimumOrderSize ();
+    async fetchMinOrderAmounts (params = {}) {
+        const response = await this.zendeskGet205893708 (params);
+        const article = this.safeValue (response, 'article');
+        const html = this.safeString (article, 'body');
         const parts = html.split ('<td class="wysiwyg-text-align-right">');
         const numParts = parts.length;
         if (numParts < 3) {
@@ -63441,7 +65974,11 @@ module.exports = class kraken extends Exchange {
 
     async fetchMarkets (params = {}) {
         const response = await this.publicGetAssetPairs (params);
-        const limits = await this.fetchMinOrderAmounts ();
+        const fetchMinOrderAmounts = this.safeValue (this.options, 'fetchMinOrderAmounts', false);
+        let limits = {};
+        if (fetchMinOrderAmounts) {
+            limits = await this.fetchMinOrderAmounts ();
+        }
         const keys = Object.keys (response['result']);
         let result = [];
         for (let i = 0; i < keys.length; i++) {
@@ -63616,6 +66153,13 @@ module.exports = class kraken extends Exchange {
         };
     }
 
+    parseBidAsk (bidask, priceKey = 0, amountKey = 1) {
+        const price = this.safeFloat (bidask, priceKey);
+        const amount = this.safeFloat (bidask, amountKey);
+        const timestamp = this.safeInteger (bidask, 2);
+        return [ price, amount, timestamp ];
+    }
+
     async fetchOrderBook (symbol, limit = undefined, params = {}) {
         await this.loadMarkets ();
         const market = this.market (symbol);
@@ -63629,7 +66173,27 @@ module.exports = class kraken extends Exchange {
             request['count'] = limit; // 100
         }
         const response = await this.publicGetDepth (this.extend (request, params));
-        const orderbook = response['result'][market['id']];
+        //
+        //     {
+        //         "error":[],
+        //         "result":{
+        //             "XETHXXBT":{
+        //                 "asks":[
+        //                     ["0.023480","4.000",1586321307],
+        //                     ["0.023490","50.095",1586321306],
+        //                     ["0.023500","28.535",1586321302],
+        //                 ],
+        //                 "bids":[
+        //                     ["0.023470","59.580",1586321307],
+        //                     ["0.023460","20.000",1586321301],
+        //                     ["0.023440","67.832",1586321306],
+        //                 ]
+        //             }
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const orderbook = this.safeValue (result, market['id']);
         return this.parseOrderBook (orderbook);
     }
 
@@ -63904,14 +66468,14 @@ module.exports = class kraken extends Exchange {
             symbol = market['symbol'];
         }
         if (Array.isArray (trade)) {
-            timestamp = parseInt (trade[2] * 1000);
+            timestamp = this.safeTimestamp (trade, 2);
             side = (trade[3] === 's') ? 'sell' : 'buy';
             type = (trade[4] === 'l') ? 'limit' : 'market';
-            price = parseFloat (trade[0]);
-            amount = parseFloat (trade[1]);
+            price = this.safeFloat (trade, 0);
+            amount = this.safeFloat (trade, 1);
             const tradeLength = trade.length;
             if (tradeLength > 6) {
-                id = trade[6]; // artificially added as per #1794
+                id = this.safeString (trade, 6); // artificially added as per #1794
             }
         } else if ('ordertxid' in trade) {
             order = trade['ordertxid'];
@@ -64035,8 +66599,10 @@ module.exports = class kraken extends Exchange {
                 id = (length > 1) ? id : id[0];
             }
         }
+        const clientOrderId = this.safeString (params, 'userref');
         return {
             'id': id,
+            'clientOrderId': clientOrderId,
             'info': response,
             'timestamp': undefined,
             'datetime': undefined,
@@ -64158,8 +66724,10 @@ module.exports = class kraken extends Exchange {
         }
         const status = this.parseOrderStatus (this.safeString (order, 'status'));
         const id = this.safeString (order, 'id');
+        const clientOrderId = this.safeString (order, 'userref');
         return {
             'id': id,
+            'clientOrderId': clientOrderId,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -64176,6 +66744,7 @@ module.exports = class kraken extends Exchange {
             'remaining': remaining,
             'fee': fee,
             // 'trades': this.parseTrades (order['trades'], market),
+            'trades': undefined,
         };
     }
 
@@ -64418,11 +66987,11 @@ module.exports = class kraken extends Exchange {
     }
 
     async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
         // https://www.kraken.com/en-us/help/api#deposit-status
         if (code === undefined) {
             throw new ArgumentsRequired (this.id + ' fetchDeposits requires a currency code argument');
         }
+        await this.loadMarkets ();
         const currency = this.currency (code);
         const request = {
             'asset': currency['id'],
@@ -64445,11 +67014,11 @@ module.exports = class kraken extends Exchange {
     }
 
     async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
         // https://www.kraken.com/en-us/help/api#withdraw-status
         if (code === undefined) {
             throw new ArgumentsRequired (this.id + ' fetchWithdrawals requires a currency code argument');
         }
+        await this.loadMarkets ();
         const currency = this.currency (code);
         const request = {
             'asset': currency['id'],
@@ -64498,7 +67067,7 @@ module.exports = class kraken extends Exchange {
                 }
                 method = this.options['depositMethods'][code][0]['method'];
             } else {
-                throw new ExchangeError (this.id + ' fetchDepositAddress() requires an extra `method` parameter. Use fetchDepositMethods ("' + code + '") to get a list of available deposit methods or enable the exchange property .options["cacheDepositMethodsOnFetchDepositAddress"] = true');
+                throw new ArgumentsRequired (this.id + ' fetchDepositAddress() requires an extra `method` parameter. Use fetchDepositMethods ("' + code + '") to get a list of available deposit methods or enable the exchange property .options["cacheDepositMethodsOnFetchDepositAddress"] = true');
             }
         }
         const request = {
@@ -64611,7 +67180,7 @@ module.exports = class kraken extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],103:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],102:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -64695,6 +67264,7 @@ module.exports = class kucoin extends Exchange {
                         'market/stats',
                         'currencies',
                         'currencies/{currency}',
+                        'prices',
                     ],
                     'post': [
                         'bullet-public',
@@ -64706,6 +67276,9 @@ module.exports = class kucoin extends Exchange {
                         'accounts/{accountId}',
                         'accounts/{accountId}/ledgers',
                         'accounts/{accountId}/holds',
+                        'accounts/transferable',
+                        'sub-accounts',
+                        'sub-accounts/{subUserId}',
                         'deposit-addresses',
                         'deposits',
                         'hist-deposits',
@@ -64715,6 +67288,7 @@ module.exports = class kucoin extends Exchange {
                         'withdrawals/quotas',
                         'orders',
                         'orders/{orderId}',
+                        'limit/orders',
                         'fills',
                         'limit/fills',
                     ],
@@ -64725,10 +67299,12 @@ module.exports = class kucoin extends Exchange {
                         'deposit-addresses',
                         'withdrawals',
                         'orders',
+                        'orders/multi',
                         'bullet-private',
                     ],
                     'delete': [
                         'withdrawals/{withdrawalId}',
+                        'orders',
                         'orders/{orderId}',
                     ],
                 },
@@ -64804,6 +67380,7 @@ module.exports = class kucoin extends Exchange {
                 'HOT': 'HOTNOW',
                 'EDGE': 'DADI', // https://github.com/ccxt/ccxt/issues/5756
                 'WAX': 'WAXP',
+                'TRY': 'Trias',
             },
             'options': {
                 'version': 'v1',
@@ -64946,6 +67523,9 @@ module.exports = class kucoin extends Exchange {
                 'code': code,
                 'precision': precision,
                 'info': entry,
+                'active': undefined,
+                'fee': undefined,
+                'limits': this.limits,
             };
         }
         return result;
@@ -65251,30 +67831,72 @@ module.exports = class kucoin extends Exchange {
         };
     }
 
+    async fetchL3OrderBook (symbol, limit = undefined, params = {}) {
+        return await this.fetchOrderBook (symbol, limit, { 'level': 3 });
+    }
+
     async fetchOrderBook (symbol, limit = undefined, params = {}) {
-        let level = '2';
-        if (limit !== undefined) {
-            if ((limit !== 20) && (limit !== 100)) {
-                throw new ExchangeError (this.id + ' fetchOrderBook limit argument must be undefined, 20 or 100');
+        const level = this.safeInteger (params, 'level', 2);
+        let levelLimit = level.toString ();
+        if (level === '2') {
+            if (limit !== undefined) {
+                if ((limit !== 20) && (limit !== 100)) {
+                    throw new ExchangeError (this.id + ' fetchOrderBook limit argument must be undefined, 20 or 100');
+                }
+                levelLimit += '_' + limit.toString ();
             }
-            level += '_' + limit.toString ();
         }
         await this.loadMarkets ();
         const marketId = this.marketId (symbol);
-        const request = this.extend ({ 'symbol': marketId, 'level': level }, params);
-        const response = await this.publicGetMarketOrderbookLevelLevel (request);
+        const request = { 'symbol': marketId, 'level': levelLimit };
+        const response = await this.publicGetMarketOrderbookLevelLevel (this.extend (request, params));
         //
-        // { sequence: '1547731421688',
-        //   asks: [ [ '5c419328ef83c75456bd615c', '0.9', '0.09' ], ... ],
-        //   bids: [ [ '5c419328ef83c75456bd615c', '0.9', '0.09' ], ... ], }
+        // 'market/orderbook/level2'
+        // 'market/orderbook/level2_20'
+        // 'market/orderbook/level2_100'
         //
-        const data = response['data'];
+        //     {
+        //         "code":"200000",
+        //         "data":{
+        //             "sequence":"1583235112106",
+        //             "asks":[
+        //                 // ...
+        //                 ["0.023197","12.5067468"],
+        //                 ["0.023194","1.8"],
+        //                 ["0.023191","8.1069672"]
+        //             ],
+        //             "bids":[
+        //                 ["0.02319","1.6000002"],
+        //                 ["0.023189","2.2842325"],
+        //             ],
+        //             "time":1586584067274
+        //         }
+        //     }
+        //
+        // 'market/orderbook/level3'
+        //
+        //     {
+        //         "code":"200000",
+        //         "data":{
+        //             "sequence":"1583731857120",
+        //             "asks":[
+        //                 // id, price, size, timestamp in nanoseconds
+        //                 ["5e915f8acd26670009675300","6925.7","0.2","1586585482194286069"],
+        //                 ["5e915f8ace35a200090bba48","6925.7","0.001","1586585482229569826"],
+        //                 ["5e915f8a8857740009ca7d33","6926","0.00001819","1586585482149148621"],
+        //             ],
+        //             "bids":[
+        //                 ["5e915f8acca406000ac88194","6925.6","0.05","1586585482384384842"],
+        //                 ["5e915f93cd26670009676075","6925.6","0.08","1586585491334914600"],
+        //                 ["5e915f906aa6e200099b49f6","6925.4","0.2","1586585488941126340"],
+        //             ],
+        //             "time":1586585492487
+        //         }
+        //     }
+        //
+        const data = this.safeValue (response, 'data', {});
         const timestamp = this.safeInteger (data, 'time');
-        // level can be a string such as 2_20 or 2_100
-        const levelString = this.safeString (request, 'level');
-        const levelParts = levelString.split ('_');
-        const offset = parseInt (levelParts[0]);
-        const orderbook = this.parseOrderBook (data, timestamp, 'bids', 'asks', offset - 2, offset - 1);
+        const orderbook = this.parseOrderBook (data, timestamp, 'bids', 'asks', level - 2, level - 1);
         orderbook['nonce'] = this.safeInteger (data, 'sequence');
         return orderbook;
     }
@@ -65325,7 +67947,7 @@ module.exports = class kucoin extends Exchange {
             'datetime': this.iso8601 (timestamp),
             'fee': undefined,
             'status': 'open',
-            'clientOid': clientOid,
+            'clientOrderId': clientOid,
             'info': data,
         };
         if (!this.safeValue (params, 'quoteAmount')) {
@@ -65511,8 +68133,10 @@ module.exports = class kucoin extends Exchange {
                 }
             }
         }
+        const clientOrderId = this.safeString (order, 'clientOid');
         return {
             'id': orderId,
+            'clientOrderId': clientOrderId,
             'symbol': symbol,
             'type': type,
             'side': side,
@@ -65526,6 +68150,9 @@ module.exports = class kucoin extends Exchange {
             'fee': fee,
             'status': status,
             'info': order,
+            'lastTradeTimestamp': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
@@ -66303,7 +68930,7 @@ module.exports = class kucoin extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],104:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],103:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -66324,11 +68951,12 @@ module.exports = class kuna extends acx {
             'has': {
                 'CORS': false,
                 'fetchTickers': true,
-                'fetchOHLCV': false,
+                'fetchOHLCV': 'emulated',
                 'fetchOpenOrders': true,
                 'fetchMyTrades': true,
                 'withdraw': false,
             },
+            'timeframes': undefined,
             'urls': {
                 'referral': 'https://kuna.io?r=kunaid-gvfihe8az7o4',
                 'logo': 'https://user-images.githubusercontent.com/1294454/31697638-912824fa-b3c1-11e7-8c36-cf9606eb94ac.jpg',
@@ -66409,6 +69037,8 @@ module.exports = class kuna extends acx {
                                 'max': undefined,
                             },
                         },
+                        'active': undefined,
+                        'info': undefined,
                     });
                     break;
                 }
@@ -66495,9 +69125,28 @@ module.exports = class kuna extends acx {
         const response = await this.privateGetTradesMy (this.extend (request, params));
         return this.parseTrades (response, market, since, limit);
     }
+
+    async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limits = undefined, params = {}) {
+        await this.loadMarkets ();
+        const trades = await this.fetchTrades (symbol, since, limits, params);
+        const ohlcvc = this.buildOHLCVC (trades, timeframe, since, limits);
+        const result = [];
+        for (let i = 0; i < ohlcvc.length; i++) {
+            const ohlcv = ohlcvc[i];
+            result.push ([
+                ohlcv[0],
+                ohlcv[1],
+                ohlcv[2],
+                ohlcv[3],
+                ohlcv[4],
+                ohlcv[5],
+            ]);
+        }
+        return result;
+    }
 };
 
-},{"./acx.js":4,"./base/errors":9}],105:[function(require,module,exports){
+},{"./acx.js":4,"./base/errors":10}],104:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -66578,6 +69227,9 @@ module.exports = class lakebtc extends Exchange {
                 'baseId': baseId,
                 'quoteId': quoteId,
                 'info': market,
+                'active': undefined,
+                'precision': this.precision,
+                'limits': this.limits,
             });
         }
         return result;
@@ -66783,7 +69435,7 @@ module.exports = class lakebtc extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],106:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],105:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -67434,8 +70086,10 @@ module.exports = class latoken extends Exchange {
         if ((timeFilled !== undefined) && (timeFilled > 0)) {
             lastTradeTimestamp = timeFilled;
         }
+        const clientOrderId = this.safeString (order, 'cliOrdId');
         return {
             'id': id,
+            'clientOrderId': clientOrderId,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -67451,6 +70105,7 @@ module.exports = class latoken extends Exchange {
             'average': undefined,
             'remaining': remaining,
             'fee': undefined,
+            'trades': undefined,
         };
     }
 
@@ -67681,13 +70336,13 @@ module.exports = class latoken extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],107:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],106:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError, DDoSProtection, AuthenticationError, InvalidOrder } = require ('./base/errors');
+const { ExchangeError, DDoSProtection, AuthenticationError, InvalidOrder, ArgumentsRequired } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -68023,10 +70678,10 @@ module.exports = class lbank extends Exchange {
         await this.loadMarkets ();
         const market = this.market (symbol);
         if (since === undefined) {
-            throw new ExchangeError (this.id + ' fetchOHLCV requires a `since` argument');
+            throw new ArgumentsRequired (this.id + ' fetchOHLCV requires a `since` argument');
         }
         if (limit === undefined) {
-            throw new ExchangeError (this.id + ' fetchOHLCV requires a `limit` argument');
+            throw new ArgumentsRequired (this.id + ' fetchOHLCV requires a `limit` argument');
         }
         const request = {
             'symbol': market['id'],
@@ -68093,6 +70748,19 @@ module.exports = class lbank extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "symbol"："eth_btc",
+        //         "amount"：10.000000,
+        //         "create_time"：1484289832081,
+        //         "price"：5000.000000,
+        //         "avg_price"：5277.301200,
+        //         "type"："sell",
+        //         "order_id"："ab704110-af0d-48fd-a083-c218f19a4a55",
+        //         "deal_amount"：10.000000,
+        //         "status"：2
+        //     }
+        //
         let symbol = undefined;
         const responseMarket = this.safeValue (this.marketsById, order['symbol']);
         if (responseMarket !== undefined) {
@@ -68123,6 +70791,7 @@ module.exports = class lbank extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -68138,6 +70807,7 @@ module.exports = class lbank extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': this.safeValue (order, 'info', order),
+            'average': undefined,
         };
     }
 
@@ -68339,7 +71009,7 @@ module.exports = class lbank extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],108:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],107:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -68519,7 +71189,7 @@ module.exports = class liquid extends Exchange {
     }
 
     async fetchMarkets (params = {}) {
-        const markets = await this.publicGetProducts ();
+        const spot = await this.publicGetProducts (params);
         //
         //     [
         //         {
@@ -68550,20 +71220,69 @@ module.exports = class liquid extends Exchange {
         //         },
         //     ]
         //
+        const perpetual = await this.publicGetProducts ({ 'perpetual': '1' });
+        //
+        //     [
+        //         {
+        //             "id": "603",
+        //             "product_type": "Perpetual",
+        //             "code": "CASH",
+        //             "name": null,
+        //             "market_ask": "1143900",
+        //             "market_bid": "1143250",
+        //             "currency": "JPY",
+        //             "currency_pair_code": "P-BTCJPY",
+        //             "pusher_channel": "product_cash_p-btcjpy_603",
+        //             "taker_fee": "0.0",
+        //             "maker_fee": "0.0",
+        //             "low_market_bid": "1124450.0",
+        //             "high_market_ask": "1151750.0",
+        //             "volume_24h": "0.1756",
+        //             "last_price_24h": "1129850.0",
+        //             "last_traded_price": "1144700.0",
+        //             "last_traded_quantity": "0.014",
+        //             "quoted_currency": "JPY",
+        //             "base_currency": "P-BTC",
+        //             "tick_size": "50.0",
+        //             "perpetual_enabled": true,
+        //             "index_price": "1142636.03935",
+        //             "mark_price": "1143522.18417",
+        //             "funding_rate": "0.00033",
+        //             "fair_price": "1143609.31009",
+        //             "timestamp": "1581558659.195353100",
+        //         },
+        //     ]
+        //
         const currencies = await this.fetchCurrencies ();
         const currenciesByCode = this.indexBy (currencies, 'code');
         const result = [];
+        const markets = this.arrayConcat (spot, perpetual);
         for (let i = 0; i < markets.length; i++) {
             const market = markets[i];
-            const id = market['id'].toString ();
-            const baseId = market['base_currency'];
-            const quoteId = market['quoted_currency'];
+            const id = this.safeString (market, 'id');
+            const baseId = this.safeString (market, 'base_currency');
+            const quoteId = this.safeString (market, 'quoted_currency');
+            const productType = this.safeString (market, 'product_type');
+            let type = 'spot';
+            let spot = true;
+            let swap = false;
+            if (productType === 'Perpetual') {
+                spot = false;
+                swap = true;
+                type = 'swap';
+            }
             const base = this.safeCurrencyCode (baseId);
             const quote = this.safeCurrencyCode (quoteId);
-            const symbol = base + '/' + quote;
+            let symbol = undefined;
+            if (swap) {
+                symbol = this.safeString (market, 'currency_pair_code');
+            } else {
+                symbol = base + '/' + quote;
+            }
             const maker = this.safeFloat (market, 'maker_fee');
             const taker = this.safeFloat (market, 'taker_fee');
-            const active = !market['disabled'];
+            const disabled = this.safeValue (market, 'disabled', false);
+            const active = !disabled;
             const baseCurrency = this.safeValue (currenciesByCode, base);
             const quoteCurrency = this.safeValue (currenciesByCode, quote);
             const precision = {
@@ -68607,6 +71326,9 @@ module.exports = class liquid extends Exchange {
                 'quote': quote,
                 'baseId': baseId,
                 'quoteId': quoteId,
+                'type': type,
+                'spot': spot,
+                'swap': swap,
                 'maker': maker,
                 'taker': taker,
                 'limits': limits,
@@ -68735,7 +71457,7 @@ module.exports = class liquid extends Exchange {
         return this.parseTicker (response, market);
     }
 
-    parseTrade (trade, market) {
+    parseTrade (trade, market = undefined) {
         // {             id:  12345,
         //         quantity: "6.789",
         //            price: "98765.4321",
@@ -68762,13 +71484,17 @@ module.exports = class liquid extends Exchange {
             }
         }
         const id = this.safeString (trade, 'id');
+        let symbol = undefined;
+        if (market !== undefined) {
+            symbol = market['symbol'];
+        }
         return {
             'info': trade,
             'id': id,
             'order': orderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
-            'symbol': market['symbol'],
+            'symbol': symbol,
             'type': undefined,
             'side': side,
             'takerOrMaker': takerOrMaker,
@@ -69000,6 +71726,7 @@ module.exports = class liquid extends Exchange {
         const side = this.safeString (order, 'side');
         return {
             'id': orderId,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -69270,7 +71997,7 @@ module.exports = class liquid extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],109:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],108:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -69528,6 +72255,9 @@ module.exports = class livecoin extends Exchange {
                     'max': Math.pow (10, precision),
                 },
             },
+            'id': undefined,
+            'code': undefined,
+            'name': undefined,
         };
         const currencies = [
             { 'id': 'USD', 'code': 'USD', 'name': 'US Dollar' },
@@ -69876,6 +72606,7 @@ module.exports = class livecoin extends Exchange {
         return {
             'info': order,
             'id': order['id'],
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -69894,6 +72625,7 @@ module.exports = class livecoin extends Exchange {
                 'currency': feeCurrency,
                 'rate': feeRate,
             },
+            'average': undefined,
         };
     }
 
@@ -70183,7 +72915,7 @@ module.exports = class livecoin extends Exchange {
 };
 
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],110:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],109:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -70289,6 +73021,9 @@ module.exports = class luno extends Exchange {
                 'baseId': baseId,
                 'quoteId': quoteId,
                 'info': market,
+                'active': undefined,
+                'precision': this.precision,
+                'limits': this.limits,
             });
         }
         return result;
@@ -70331,6 +73066,23 @@ module.exports = class luno extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "base": "string",
+        //         "completed_timestamp": "string",
+        //         "counter": "string",
+        //         "creation_timestamp": "string",
+        //         "expiration_timestamp": "string",
+        //         "fee_base": "string",
+        //         "fee_counter": "string",
+        //         "limit_price": "string",
+        //         "limit_volume": "string",
+        //         "order_id": "string",
+        //         "pair": "string",
+        //         "state": "PENDING",
+        //         "type": "BID"
+        //     }
+        //
         const timestamp = this.safeInteger (order, 'creation_timestamp');
         const status = (order['state'] === 'PENDING') ? 'open' : 'closed';
         const side = (order['type'] === 'ASK') ? 'sell' : 'buy';
@@ -70369,6 +73121,7 @@ module.exports = class luno extends Exchange {
         const id = this.safeString (order, 'order_id');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -70384,6 +73137,7 @@ module.exports = class luno extends Exchange {
             'trades': undefined,
             'fee': fee,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -70640,7 +73394,7 @@ module.exports = class luno extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],111:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],110:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -70898,6 +73652,8 @@ module.exports = class lykke extends Exchange {
                         'max': undefined,
                     },
                 },
+                'baseId': undefined,
+                'quoteId': undefined,
             });
         }
         return result;
@@ -70959,6 +73715,23 @@ module.exports = class lykke extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "Id": "string",
+        //         "Status": "Unknown",
+        //         "AssetPairId": "string",
+        //         "Volume": 0,
+        //         "Price": 0,
+        //         "RemainingVolume": 0,
+        //         "LastMatchTime": "2020-03-26T20:58:50.710Z",
+        //         "CreatedAt": "2020-03-26T20:58:50.710Z",
+        //         "Type": "Unknown",
+        //         "LowerLimitPrice": 0,
+        //         "LowerPrice": 0,
+        //         "UpperLimitPrice": 0,
+        //         "UpperPrice": 0
+        //     }
+        //
         const status = this.parseOrderStatus (this.safeString (order, 'Status'));
         let symbol = undefined;
         if (market === undefined) {
@@ -70984,6 +73757,7 @@ module.exports = class lykke extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -70998,6 +73772,7 @@ module.exports = class lykke extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': undefined,
+            'trades': undefined,
         };
     }
 
@@ -71100,7 +73875,7 @@ module.exports = class lykke extends Exchange {
     }
 };
 
-},{"./base/Exchange":7}],112:[function(require,module,exports){
+},{"./base/Exchange":8}],111:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -71455,6 +74230,7 @@ module.exports = class mercado extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -71501,17 +74277,17 @@ module.exports = class mercado extends Exchange {
         if (code === 'BRL') {
             const account_ref = ('account_ref' in params);
             if (!account_ref) {
-                throw new ExchangeError (this.id + ' requires account_ref parameter to withdraw ' + code);
+                throw new ArgumentsRequired (this.id + ' requires account_ref parameter to withdraw ' + code);
             }
         } else if (code !== 'LTC') {
             const tx_fee = ('tx_fee' in params);
             if (!tx_fee) {
-                throw new ExchangeError (this.id + ' requires tx_fee parameter to withdraw ' + code);
+                throw new ArgumentsRequired (this.id + ' requires tx_fee parameter to withdraw ' + code);
             }
             if (code === 'XRP') {
                 if (tag === undefined) {
                     if (!('destination_tag' in params)) {
-                        throw new ExchangeError (this.id + ' requires a tag argument or destination_tag parameter to withdraw ' + code);
+                        throw new ArgumentsRequired (this.id + ' requires a tag argument or destination_tag parameter to withdraw ' + code);
                     }
                 } else {
                     request['destination_tag'] = tag;
@@ -71608,7 +74384,7 @@ module.exports = class mercado extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],113:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],112:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -71833,7 +74609,7 @@ module.exports = class mixcoins extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],114:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],113:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -72392,6 +75168,23 @@ module.exports = class oceanex extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "created_at": "2019-01-18T00:38:18Z",
+        //         "trades_count": 0,
+        //         "remaining_volume": "0.2",
+        //         "price": "1001.0",
+        //         "created_on": "1547771898",
+        //         "side": "buy",
+        //         "volume": "0.2",
+        //         "state": "wait",
+        //         "ord_type": "limit",
+        //         "avg_price": "0.0",
+        //         "executed_volume": "0.0",
+        //         "id": 473797,
+        //         "market": "veteth"
+        //     }
+        //
         const status = this.parseOrderStatus (this.safeValue (order, 'state'));
         const marketId = this.safeValue2 (order, 'market', 'market_id');
         let symbol = undefined;
@@ -72415,6 +75208,7 @@ module.exports = class oceanex extends Exchange {
         return {
             'info': order,
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -72528,1249 +75322,63 @@ module.exports = class oceanex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],115:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],114:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
 
-const okcoinusd = require ('./okcoinusd.js');
+const okex = require ('./okex.js');
 
 // ---------------------------------------------------------------------------
 
-module.exports = class okcoincny extends okcoinusd {
+module.exports = class okcoin extends okex {
     describe () {
         return this.deepExtend (super.describe (), {
-            'id': 'okcoincny',
-            'name': 'OKCoin CNY',
-            'countries': [ 'CN' ],
-            'has': {
-                'CORS': false,
-            },
-            'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766792-8be9157a-5ee5-11e7-926c-6d69b8d3378d.jpg',
-                'api': {
-                    'web': 'https://www.okcoin.cn',
-                    'public': 'https://www.okcoin.cn/api',
-                    'private': 'https://www.okcoin.cn/api',
-                },
-                'www': 'https://www.okcoin.cn',
-                'doc': 'https://www.okcoin.cn/rest_getStarted.html',
-                'referral': 'https://www.okcoin.cn',
-            },
-            'markets': {
-                'BTC/CNY': { 'id': 'btc_cny', 'symbol': 'BTC/CNY', 'base': 'BTC', 'quote': 'CNY', 'type': 'spot', 'spot': true, 'future': false },
-                'LTC/CNY': { 'id': 'ltc_cny', 'symbol': 'LTC/CNY', 'base': 'LTC', 'quote': 'CNY', 'type': 'spot', 'spot': true, 'future': false },
-                'ETH/CNY': { 'id': 'eth_cny', 'symbol': 'ETH/CNY', 'base': 'ETH', 'quote': 'CNY', 'type': 'spot', 'spot': true, 'future': false },
-                'ETC/CNY': { 'id': 'etc_cny', 'symbol': 'ETC/CNY', 'base': 'ETC', 'quote': 'CNY', 'type': 'spot', 'spot': true, 'future': false },
-                'BCH/CNY': { 'id': 'bcc_cny', 'symbol': 'BCH/CNY', 'base': 'BCH', 'quote': 'CNY', 'type': 'spot', 'spot': true, 'future': false },
-            },
-        });
-    }
-};
-
-},{"./okcoinusd.js":116}],116:[function(require,module,exports){
-'use strict';
-
-//  ---------------------------------------------------------------------------
-
-const Exchange = require ('./base/Exchange');
-const { BadSymbol, ExchangeError, ArgumentsRequired, DDoSProtection, InsufficientFunds, InvalidOrder, OrderNotFound, AuthenticationError, BadRequest } = require ('./base/errors');
-
-//  ---------------------------------------------------------------------------
-
-module.exports = class okcoinusd extends Exchange {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'okcoinusd',
-            'name': 'OKCoin USD',
+            'id': 'okcoin',
+            'name': 'OKCoin',
             'countries': [ 'CN', 'US' ],
-            'version': 'v1',
-            'rateLimit': 1000, // up to 3000 requests per 5 minutes ≈ 600 requests per minute ≈ 10 requests per second ≈ 100 ms
-            'has': {
-                'CORS': false,
-                'fetchOHLCV': true,
-                'fetchOrder': true,
-                'fetchOrders': false,
-                'fetchOpenOrders': true,
-                'fetchClosedOrders': true,
-                'fetchTickers': true,
-                'withdraw': true,
-                'futures': false,
-            },
-            'extension': '.do', // appended to endpoint URL
-            'timeframes': {
-                '1m': '1min',
-                '3m': '3min',
-                '5m': '5min',
-                '15m': '15min',
-                '30m': '30min',
-                '1h': '1hour',
-                '2h': '2hour',
-                '4h': '4hour',
-                '6h': '6hour',
-                '12h': '12hour',
-                '1d': '1day',
-                '3d': '3day',
-                '1w': '1week',
-            },
-            'api': {
-                'v3': {
-                    'get': [
-                        'futures/pc/market/futuresCoin',
-                    ],
-                },
-                'web': {
-                    'get': [
-                        'futures/pc/market/marketOverview',
-                        'spot/markets/index-tickers',
-                        'spot/markets/currencies',
-                        'spot/markets/products',
-                        'spot/markets/tickers',
-                        'spot/user-level',
-                    ],
-                    'post': [
-                        'futures/pc/market/futuresCoin',
-                    ],
-                },
-                'public': {
-                    'get': [
-                        'depth',
-                        'exchange_rate',
-                        'future_depth',
-                        'future_estimated_price',
-                        'future_hold_amount',
-                        'future_index',
-                        'future_kline',
-                        'future_price_limit',
-                        'future_ticker',
-                        'future_trades',
-                        'kline',
-                        'otcs',
-                        'ticker',
-                        'tickers',
-                        'trades',
-                    ],
-                },
-                'private': {
-                    'post': [
-                        'account_records',
-                        'batch_trade',
-                        'borrow_money',
-                        'borrow_order_info',
-                        'borrows_info',
-                        'cancel_borrow',
-                        'cancel_order',
-                        'cancel_otc_order',
-                        'cancel_withdraw',
-                        'funds_transfer',
-                        'future_batch_trade',
-                        'future_cancel',
-                        'future_devolve',
-                        'future_explosive',
-                        'future_order_info',
-                        'future_orders_info',
-                        'future_position',
-                        'future_position_4fix',
-                        'future_trade',
-                        'future_trades_history',
-                        'future_userinfo',
-                        'future_userinfo_4fix',
-                        'lend_depth',
-                        'order_fee',
-                        'order_history',
-                        'order_info',
-                        'orders_info',
-                        'otc_order_history',
-                        'otc_order_info',
-                        'repayment',
-                        'submit_otc_order',
-                        'trade',
-                        'trade_history',
-                        'trade_otc_order',
-                        'wallet_info',
-                        'withdraw',
-                        'withdraw_info',
-                        'unrepayments_info',
-                        'userinfo',
-                    ],
-                },
-            },
+            'hostname': 'okcoin.com',
+            'pro': true,
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/27766791-89ffb502-5ee5-11e7-8a5b-c5950b68ac65.jpg',
-                'api': {
-                    'v3': 'https://www.okcoin.com/v3',
-                    'web': 'https://www.okcoin.com/v2',
-                    'public': 'https://www.okcoin.com/api',
-                    'private': 'https://www.okcoin.com',
-                },
                 'www': 'https://www.okcoin.com',
-                'doc': [
-                    'https://www.okcoin.com/docs/en/',
-                    'https://www.npmjs.com/package/okcoin.com',
-                ],
+                'doc': 'https://www.okcoin.com/docs/en/',
+                'fees': 'https://www.okcoin.com/coin-fees',
                 'referral': 'https://www.okcoin.com/account/register?flag=activity&channelId=600001513',
-                'fees': 'https://support.okcoin.com/hc/en-us/articles/360015261532-OKCoin-Fee-Rates',
             },
-            // these are okcoin.com fees, okex fees are in okex.js
             'fees': {
                 'trading': {
                     'taker': 0.002,
                     'maker': 0.001,
                 },
             },
-            'exceptions': {
-                // see https://github.com/okcoin-okex/API-docs-OKEx.com/blob/master/API-For-Spot-EN/Error%20Code%20For%20Spot.md
-                '10000': ExchangeError, // "Required field, can not be null"
-                '10001': DDoSProtection, // "Request frequency too high to exceed the limit allowed"
-                '10005': AuthenticationError, // "'SecretKey' does not exist"
-                '10006': AuthenticationError, // "'Api_key' does not exist"
-                '10007': AuthenticationError, // "Signature does not match"
-                '1002': InsufficientFunds, // "The transaction amount exceed the balance"
-                '1003': InvalidOrder, // "The transaction amount is less than the minimum requirement"
-                '1004': InvalidOrder, // "The transaction amount is less than 0"
-                '1013': InvalidOrder, // no contract type (PR-1101)
-                '1027': InvalidOrder, // createLimitBuyOrder(symbol, 0, 0): Incorrect parameter may exceeded limits
-                '1050': InvalidOrder, // returned when trying to cancel an order that was filled or canceled previously
-                '1217': InvalidOrder, // "Order was sent at ±5% of the current market price. Please resend"
-                '10014': InvalidOrder, // "Order price must be between 0 and 1,000,000"
-                '1009': OrderNotFound, // for spot markets, cancelling closed order
-                '1019': OrderNotFound, // order closed? ("Undo order failed")
-                '1051': OrderNotFound, // for spot markets, cancelling "just closed" order
-                '10009': OrderNotFound, // for spot markets, "Order does not exist"
-                '20015': OrderNotFound, // for future markets
-                '10008': BadRequest, // Illegal URL parameter
-                '1007': BadSymbol, // No trading market information
-                // todo: sort out below
-                // 10000 Required parameter is empty
-                // 10001 Request frequency too high to exceed the limit allowed
-                // 10002 Authentication failure
-                // 10002 System error
-                // 10003 This connection has requested other user data
-                // 10004 Request failed
-                // 10005 api_key or sign is invalid, 'SecretKey' does not exist
-                // 10006 'Api_key' does not exist
-                // 10007 Signature does not match
-                // 10008 Illegal parameter, Parameter erorr
-                // 10009 Order does not exist
-                // 10010 Insufficient funds
-                // 10011 Amount too low
-                // 10012 Only btc_usd ltc_usd supported
-                // 10013 Only support https request
-                // 10014 Order price must be between 0 and 1,000,000
-                // 10015 Order price differs from current market price too much / Channel subscription temporally not available
-                // 10016 Insufficient coins balance
-                // 10017 API authorization error / WebSocket authorization error
-                // 10018 borrow amount less than lower limit [usd:100,btc:0.1,ltc:1]
-                // 10019 loan agreement not checked
-                // 1002 The transaction amount exceed the balance
-                // 10020 rate cannot exceed 1%
-                // 10021 rate cannot less than 0.01%
-                // 10023 fail to get latest ticker
-                // 10024 balance not sufficient
-                // 10025 quota is full, cannot borrow temporarily
-                // 10026 Loan (including reserved loan) and margin cannot be withdrawn
-                // 10027 Cannot withdraw within 24 hrs of authentication information modification
-                // 10028 Withdrawal amount exceeds daily limit
-                // 10029 Account has unpaid loan, please cancel/pay off the loan before withdraw
-                // 1003 The transaction amount is less than the minimum requirement
-                // 10031 Deposits can only be withdrawn after 6 confirmations
-                // 10032 Please enabled phone/google authenticator
-                // 10033 Fee higher than maximum network transaction fee
-                // 10034 Fee lower than minimum network transaction fee
-                // 10035 Insufficient BTC/LTC
-                // 10036 Withdrawal amount too low
-                // 10037 Trade password not set
-                // 1004 The transaction amount is less than 0
-                // 10040 Withdrawal cancellation fails
-                // 10041 Withdrawal address not exsit or approved
-                // 10042 Admin password error
-                // 10043 Account equity error, withdrawal failure
-                // 10044 fail to cancel borrowing order
-                // 10047 this function is disabled for sub-account
-                // 10048 withdrawal information does not exist
-                // 10049 User can not have more than 50 unfilled small orders (amount<0.15BTC)
-                // 10050 can't cancel more than once
-                // 10051 order completed transaction
-                // 10052 not allowed to withdraw
-                // 10064 after a USD deposit, that portion of assets will not be withdrawable for the next 48 hours
-                // 1008 No latest market information
-                // 1009 No order
-                // 1010 Different user of the cancelled order and the original order
-                // 10100 User account frozen
-                // 10101 order type is wrong
-                // 10102 incorrect ID
-                // 10103 the private otc order's key incorrect
-                // 10106 API key domain not matched
-                // 1011 No documented user
-                // 1013 No order type
-                // 1014 No login
-                // 1015 No market depth information
-                // 1017 Date error
-                // 1018 Order failed
-                // 1019 Undo order failed
-                // 10216 Non-available API / non-public API
-                // 1024 Currency does not exist
-                // 1025 No chart type
-                // 1026 No base currency quantity
-                // 1027 Incorrect parameter may exceeded limits
-                // 1028 Reserved decimal failed
-                // 1029 Preparing
-                // 1030 Account has margin and futures, transactions can not be processed
-                // 1031 Insufficient Transferring Balance
-                // 1032 Transferring Not Allowed
-                // 1035 Password incorrect
-                // 1036 Google Verification code Invalid
-                // 1037 Google Verification code incorrect
-                // 1038 Google Verification replicated
-                // 1039 Message Verification Input exceed the limit
-                // 1040 Message Verification invalid
-                // 1041 Message Verification incorrect
-                // 1042 Wrong Google Verification Input exceed the limit
-                // 1043 Login password cannot be same as the trading password
-                // 1044 Old password incorrect
-                // 1045 2nd Verification Needed
-                // 1046 Please input old password
-                // 1048 Account Blocked
-                // 1050 Orders have been withdrawn or withdrawn
-                // 1051 Order completed
-                // 1201 Account Deleted at 00: 00
-                // 1202 Account Not Exist
-                // 1203 Insufficient Balance
-                // 1204 Invalid currency
-                // 1205 Invalid Account
-                // 1206 Cash Withdrawal Blocked
-                // 1207 Transfer Not Support
-                // 1208 No designated account
-                // 1209 Invalid api
-                // 1216 Market order temporarily suspended. Please send limit order
-                // 1217 Order was sent at ±5% of the current market price. Please resend
-                // 1218 Place order failed. Please try again later
-                // 20001 User does not exist
-                // 20002 Account frozen
-                // 20003 Account frozen due to forced liquidation
-                // 20004 Contract account frozen
-                // 20005 User contract account does not exist
-                // 20006 Required field missing
-                // 20007 Illegal parameter
-                // 20008 Contract account balance is too low
-                // 20009 Contract status error
-                // 20010 Risk rate ratio does not exist
-                // 20011 Risk rate lower than 90%/80% before opening BTC position with 10x/20x leverage. or risk rate lower than 80%/60% before opening LTC position with 10x/20x leverage
-                // 20012 Risk rate lower than 90%/80% after opening BTC position with 10x/20x leverage. or risk rate lower than 80%/60% after opening LTC position with 10x/20x leverage
-                // 20013 Temporally no counter party price
-                // 20014 System error
-                // 20015 Order does not exist
-                // 20016 Close amount bigger than your open positions, liquidation quantity bigger than holding
-                // 20017 Not authorized/illegal operation/illegal order ID
-                // 20018 Order price cannot be more than 103-105% or less than 95-97% of the previous minute price
-                // 20019 IP restricted from accessing the resource
-                // 20020 Secret key does not exist
-                // 20021 Index information does not exist
-                // 20022 Wrong API interface (Cross margin mode shall call cross margin API, fixed margin mode shall call fixed margin API)
-                // 20023 Account in fixed-margin mode
-                // 20024 Signature does not match
-                // 20025 Leverage rate error
-                // 20026 API Permission Error
-                // 20027 no transaction record
-                // 20028 no such contract
-                // 20029 Amount is large than available funds
-                // 20030 Account still has debts
-                // 20038 Due to regulation, this function is not availavle in the country/region your currently reside in.
-                // 20049 Request frequency too high
-                // 20100 request time out
-                // 20101 the format of data is error
-                // 20102 invalid login
-                // 20103 event type error
-                // 20104 subscription type error
-                // 20107 JSON format error
-                // 20115 The quote is not match
-                // 20116 Param not match
-                // 21020 Contracts are being delivered, orders cannot be placed
-                // 21021 Contracts are being settled, contracts cannot be placed
-            },
             'options': {
-                'marketBuyPrice': false,
-                'fetchOHLCVWarning': true,
-                'contractTypes': {
-                    '1': 'this_week',
-                    '2': 'next_week',
-                    '4': 'quarter',
-                },
-                'fetchTickersMethod': 'fetch_tickers_from_api',
-            },
-        });
-    }
-
-    async fetchMarkets (params = {}) {
-        // TODO: they have a new fee schedule as of Feb 7
-        // the new fees are progressive and depend on 30-day traded volume
-        // the following is the worst case
-        const result = [];
-        const spotResponse = await this.webGetSpotMarketsProducts ();
-        //
-        //     {
-        //         "code": 0,
-        //         "data": [
-        //             {
-        //                 "baseCurrency":0,
-        //                 "brokerId":0,
-        //                 "callAuctionOrCallNoCancelAuction":false,
-        //                 "callNoCancelSwitchTime":{},
-        //                 "collect":"0",
-        //                 "continuousSwitchTime":{},
-        //                 "groupId":1,
-        //                 "isMarginOpen":true,
-        //                 "listDisplay":0,
-        //                 "marginRiskPreRatio":1.2,
-        //                 "marginRiskRatio":1.1,
-        //                 "marketFrom":118,
-        //                 "maxMarginLeverage":5,
-        //                 "maxPriceDigit":1,
-        //                 "maxSizeDigit":8,
-        //                 "mergeTypes":"0.1,1,10",
-        //                 "minTradeSize":0.00100000,
-        //                 "online":1,
-        //                 "productId":20,
-        //                 "quoteCurrency":7,
-        //                 "quoteIncrement":"0.1",
-        //                 "quotePrecision":2,
-        //                 "sort":30038,
-        //                 "symbol":"btc_usdt",
-        //                 "tradingMode":3
-        //             },
-        //         ]
-        //     }
-        //
-        const spotMarkets = this.safeValue (spotResponse, 'data', []);
-        let markets = spotMarkets;
-        if (this.has['futures']) {
-            const futuresResponse = await this.v3GetFuturesPcMarketFuturesCoin ({
-                'currencyCode': 0,
-            });
-            //
-            //     {
-            //         "msg":"success",
-            //         "code":0,
-            //         "detailMsg":"",
-            //         "data": [
-            //             {
-            //                 "symbolId":0,
-            //                 "symbol":"f_usd_btc",
-            //                 "iceSingleAvgMinAmount":2,
-            //                 "minTradeSize":1,
-            //                 "iceSingleAvgMaxAmount":500,
-            //                 "contractDepthLevel":["0.01","0.2"],
-            //                 "dealAllMaxAmount":999,
-            //                 "maxSizeDigit":4,
-            //                 "contracts":[
-            //                     { "marketFrom":34, "id":201905240000034, "type":1, "desc":"BTC0524" },
-            //                     { "marketFrom":13, "id":201905310000013, "type":2, "desc":"BTC0531" },
-            //                     { "marketFrom":12, "id":201906280000012, "type":4, "desc":"BTC0628" },
-            //                 ],
-            //                 "maxPriceDigit":2,
-            //                 "nativeRate":1,
-            //                 "quote":"usd",
-            //                 "nativeCurrency":"usd",
-            //                 "nativeCurrencyMark":"$",
-            //                 "contractSymbol":0,
-            //                 "unitAmount":100.00,
-            //                 "symbolMark":"฿",
-            //                 "symbolDesc":"BTC"
-            //             },
-            //         ]
-            //     }
-            //
-            const data = this.safeValue (futuresResponse, 'data', {});
-            const futuresMarkets = this.safeValue (data, 'usd', []);
-            markets = this.arrayConcat (spotMarkets, futuresMarkets);
-        }
-        for (let i = 0; i < markets.length; i++) {
-            const market = markets[i];
-            const id = this.safeString (market, 'symbol');
-            let symbol = undefined;
-            let base = undefined;
-            let quote = undefined;
-            let baseId = undefined;
-            let quoteId = undefined;
-            let baseNumericId = undefined;
-            let quoteNumericId = undefined;
-            let lowercaseId = undefined;
-            let uppercaseBaseId = undefined;
-            const precision = {
-                'amount': this.safeInteger (market, 'maxSizeDigit'),
-                'price': this.safeInteger (market, 'maxPriceDigit'),
-            };
-            const minAmount = this.safeFloat (market, 'minTradeSize');
-            const minPrice = Math.pow (10, -precision['price']);
-            let contracts = this.safeValue (market, 'contracts');
-            if (contracts === undefined) {
-                // spot markets
-                lowercaseId = id;
-                const parts = id.split ('_');
-                baseId = parts[0];
-                quoteId = parts[1];
-                baseNumericId = this.safeInteger (market, 'baseCurrency');
-                quoteNumericId = this.safeInteger (market, 'quoteCurrency');
-                base = this.safeCurrencyCode (baseId);
-                quote = this.safeCurrencyCode (quoteId);
-                contracts = [{}];
-            } else {
-                // futures markets
-                quoteId = this.safeStringLower2 (market, 'quote', 'denomination');
-                uppercaseBaseId = this.safeStringLower (market, 'symbolDesc');
-                baseId = uppercaseBaseId.toLowerCase ();
-                lowercaseId = baseId + '_' + quoteId;
-                base = this.safeCurrencyCode (uppercaseBaseId);
-                quote = this.safeCurrencyCode (quoteId);
-            }
-            for (let k = 0; k < contracts.length; k++) {
-                const contract = contracts[k];
-                let type = this.safeString (contract, 'type', 'spot');
-                let contractType = undefined;
-                let spot = true;
-                let future = false;
-                let active = true;
-                if (type === 'spot') {
-                    symbol = base + '/' + quote;
-                    active = market['online'] !== 0;
-                } else {
-                    const contractId = this.safeString (contract, 'id');
-                    symbol = base + '-' + quote + '-' + contractId.slice (2, 8);
-                    contractType = this.safeString (this.options['contractTypes'], type);
-                    type = 'future';
-                    spot = false;
-                    future = true;
-                }
-                const fees = this.safeValue2 (this.fees, type, 'trading', {});
-                result.push (this.extend (fees, {
-                    'id': id,
-                    'lowercaseId': lowercaseId,
-                    'contractType': contractType,
-                    'symbol': symbol,
-                    'base': base,
-                    'quote': quote,
-                    'baseId': baseId,
-                    'quoteId': quoteId,
-                    'baseNumericId': baseNumericId,
-                    'quoteNumericId': quoteNumericId,
-                    'info': market,
-                    'type': type,
-                    'spot': spot,
-                    'future': future,
-                    'active': active,
-                    'precision': precision,
-                    'limits': {
-                        'amount': {
-                            'min': minAmount,
-                            'max': undefined,
-                        },
-                        'price': {
-                            'min': minPrice,
-                            'max': undefined,
-                        },
-                        'cost': {
-                            'min': minAmount * minPrice,
-                            'max': undefined,
-                        },
-                    },
-                }));
-            }
-        }
-        return result;
-    }
-
-    calculateFee (symbol, type, side, amount, price, takerOrMaker = 'taker', params = {}) {
-        const market = this.markets[symbol];
-        let key = 'quote';
-        const rate = market[takerOrMaker];
-        let cost = parseFloat (this.costToPrecision (symbol, amount * rate));
-        if (side === 'sell') {
-            cost *= price;
-        } else {
-            key = 'base';
-        }
-        return {
-            'type': takerOrMaker,
-            'currency': market[key],
-            'rate': rate,
-            'cost': parseFloat (this.feeToPrecision (symbol, cost)),
-        };
-    }
-
-    async fetchTickersFromApi (symbols = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {};
-        const response = await this.publicGetTickers (this.extend (request, params));
-        const tickers = response['tickers'];
-        const timestamp = this.safeTimestamp (response, 'date');
-        const result = {};
-        for (let i = 0; i < tickers.length; i++) {
-            let ticker = tickers[i];
-            ticker = this.parseTicker (this.extend (tickers[i], { 'timestamp': timestamp }));
-            const symbol = ticker['symbol'];
-            result[symbol] = ticker;
-        }
-        return result;
-    }
-
-    async fetchTickersFromWeb (symbols = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {};
-        const response = await this.webGetSpotMarketsTickers (this.extend (request, params));
-        const tickers = this.safeValue (response, 'data');
-        const result = {};
-        for (let i = 0; i < tickers.length; i++) {
-            const ticker = this.parseTicker (tickers[i]);
-            const symbol = ticker['symbol'];
-            result[symbol] = ticker;
-        }
-        return result;
-    }
-
-    async fetchTickers (symbols = undefined, params = {}) {
-        const method = this.options['fetchTickersMethod'];
-        return await this[method] (symbols, params);
-    }
-
-    async fetchOrderBook (symbol = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'publicGetFutureDepth' : 'publicGetDepth';
-        const request = this.createRequest (market, params);
-        if (limit !== undefined) {
-            request['size'] = limit;
-        }
-        const response = await this[method] (request);
-        return this.parseOrderBook (response);
-    }
-
-    parseTicker (ticker, market = undefined) {
-        //
-        //     {              buy:   "48.777300",
-        //                 change:   "-1.244500",
-        //       changePercentage:   "-2.47%",
-        //                  close:   "49.064000",
-        //            createdDate:    1531704852254,
-        //             currencyId:    527,
-        //                dayHigh:   "51.012500",
-        //                 dayLow:   "48.124200",
-        //                   high:   "51.012500",
-        //                inflows:   "0",
-        //                   last:   "49.064000",
-        //                    low:   "48.124200",
-        //             marketFrom:    627,
-        //                   name: {  },
-        //                   open:   "50.308500",
-        //               outflows:   "0",
-        //              productId:    527,
-        //                   sell:   "49.064000",
-        //                 symbol:   "zec_okb",
-        //                 volume:   "1049.092535"   }
-        //
-        const timestamp = this.safeInteger2 (ticker, 'timestamp', 'createdDate');
-        let symbol = undefined;
-        if (market === undefined) {
-            if ('symbol' in ticker) {
-                const marketId = ticker['symbol'];
-                if (marketId in this.markets_by_id) {
-                    market = this.markets_by_id[marketId];
-                } else {
-                    const [ baseId, quoteId ] = ticker['symbol'].split ('_');
-                    const base = this.safeCurrencyCode (baseId);
-                    const quote = this.safeCurrencyCode (quoteId);
-                    symbol = base + '/' + quote;
-                }
-            }
-        }
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        const last = this.safeFloat (ticker, 'last');
-        const open = this.safeFloat (ticker, 'open');
-        const change = this.safeFloat (ticker, 'change');
-        const percentage = this.safeFloat (ticker, 'changePercentage');
-        return {
-            'symbol': symbol,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'high': this.safeFloat (ticker, 'high'),
-            'low': this.safeFloat (ticker, 'low'),
-            'bid': this.safeFloat (ticker, 'buy'),
-            'bidVolume': undefined,
-            'ask': this.safeFloat (ticker, 'sell'),
-            'askVolume': undefined,
-            'vwap': undefined,
-            'open': open,
-            'close': last,
-            'last': last,
-            'previousClose': undefined,
-            'change': change,
-            'percentage': percentage,
-            'average': undefined,
-            'baseVolume': this.safeFloat2 (ticker, 'vol', 'volume'),
-            'quoteVolume': undefined,
-            'info': ticker,
-        };
-    }
-
-    async fetchTicker (symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'publicGetFutureTicker' : 'publicGetTicker';
-        const request = this.createRequest (market, params);
-        const response = await this[method] (request);
-        let ticker = this.safeValue (response, 'ticker');
-        if (ticker === undefined) {
-            throw new ExchangeError (this.id + ' fetchTicker returned an empty response: ' + this.json (response));
-        }
-        const timestamp = this.safeTimestamp (response, 'date');
-        if (timestamp !== undefined) {
-            ticker = this.extend (ticker, { 'timestamp': timestamp });
-        }
-        return this.parseTicker (ticker, market);
-    }
-
-    parseTrade (trade, market = undefined) {
-        let symbol = undefined;
-        if (market) {
-            symbol = market['symbol'];
-        }
-        const timestamp = this.safeInteger (trade, 'date_ms');
-        const id = this.safeString (trade, 'tid');
-        const type = undefined;
-        const side = this.safeString (trade, 'type');
-        const price = this.safeFloat (trade, 'price');
-        const amount = this.safeFloat (trade, 'amount');
-        let cost = undefined;
-        if (price !== undefined) {
-            if (amount !== undefined) {
-                cost = price * amount;
-            }
-        }
-        return {
-            'id': id,
-            'info': trade,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': symbol,
-            'order': undefined,
-            'type': type,
-            'side': side,
-            'takerOrMaker': undefined,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-            'fee': undefined,
-        };
-    }
-
-    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'publicGetFutureTrades' : 'publicGetTrades';
-        const request = this.createRequest (market, params);
-        const response = await this[method] (request);
-        return this.parseTrades (response, market, since, limit);
-    }
-
-    parseOHLCV (ohlcv, market = undefined, timeframe = '1m', since = undefined, limit = undefined) {
-        const numElements = ohlcv.length;
-        const volumeIndex = (numElements > 6) ? 6 : 5;
-        return [
-            ohlcv[0], // timestamp
-            parseFloat (ohlcv[1]), // Open
-            parseFloat (ohlcv[2]), // High
-            parseFloat (ohlcv[3]), // Low
-            parseFloat (ohlcv[4]), // Close
-            // parseFloat (ohlcv[5]), // quote volume
-            // parseFloat (ohlcv[6]), // base volume
-            parseFloat (ohlcv[volumeIndex]), // okex will return base volume in the 7th element for future markets
-        ];
-    }
-
-    async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'publicGetFutureKline' : 'publicGetKline';
-        const request = this.createRequest (market, {
-            'type': this.timeframes[timeframe],
-        });
-        if (since !== undefined) {
-            request['since'] = parseInt ((this.milliseconds () - 86400000) / 1000); // default last 24h
-        }
-        if (limit !== undefined) {
-            if (this.options['fetchOHLCVWarning']) {
-                throw new ExchangeError (this.id + ' fetchOHLCV counts "limit" candles backwards in chronological ascending order, therefore the "limit" argument for ' + this.id + ' is disabled. Set ' + this.id + '.options["fetchOHLCVWarning"] = false to suppress this warning message.');
-            }
-            request['size'] = parseInt (limit); // max is 1440 candles
-        }
-        const response = await this[method] (this.extend (request, params));
-        return this.parseOHLCVs (response, market, timeframe, since, limit);
-    }
-
-    async fetchBalance (params = {}) {
-        await this.loadMarkets ();
-        const response = await this.privatePostUserinfo (params);
-        const info = this.safeValue (response, 'info', {});
-        const balances = this.safeValue (info, 'funds', {});
-        const result = { 'info': response };
-        let ids = Object.keys (balances['free']);
-        let usedField = 'freezed';
-        // wtf, okex?
-        // https://github.com/okcoin-okex/API-docs-OKEx.com/commit/01cf9dd57b1f984a8737ef76a037d4d3795d2ac7
-        if (!(usedField in balances)) {
-            usedField = 'holds';
-        }
-        const usedKeys = Object.keys (balances[usedField]);
-        ids = this.arrayConcat (ids, usedKeys);
-        for (let i = 0; i < ids.length; i++) {
-            const id = ids[i];
-            const code = this.safeCurrencyCode (id);
-            const account = this.account ();
-            account['free'] = this.safeFloat (balances['free'], id);
-            account['used'] = this.safeFloat (balances[usedField], id);
-            result[code] = account;
-        }
-        return this.parseBalance (result);
-    }
-
-    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'privatePostFutureTrade' : 'privatePostTrade';
-        const orderSide = (type === 'market') ? (side + '_market') : side;
-        const isMarketBuy = ((market['spot']) && (type === 'market') && (side === 'buy') && (!this.options['marketBuyPrice']));
-        const orderPrice = isMarketBuy ? this.safeFloat (params, 'cost') : price;
-        const request = this.createRequest (market, {
-            'type': orderSide,
-        });
-        if (market['future']) {
-            request['match_price'] = (type === 'market') ? 1 : 0; // match best counter party price? 0 or 1, ignores price if 1
-            request['lever_rate'] = 10; // leverage rate value: 10 or 20 (10 by default)
-            request['type'] = (side === 'buy') ? '1' : '2';
-        } else if (type === 'market') {
-            if (side === 'buy') {
-                if (!orderPrice) {
-                    if (this.options['marketBuyPrice']) {
-                        // eslint-disable-next-line quotes
-                        throw new ExchangeError (this.id + " market buy orders require a price argument (the amount you want to spend or the cost of the order) when this.options['marketBuyPrice'] is true.");
-                    } else {
-                        // eslint-disable-next-line quotes
-                        throw new ExchangeError (this.id + " market buy orders require an additional cost parameter, cost = price * amount. If you want to pass the cost of the market order (the amount you want to spend) in the price argument (the default " + this.id + " behaviour), set this.options['marketBuyPrice'] = true. It will effectively suppress this warning exception as well.");
-                    }
-                } else {
-                    request['price'] = orderPrice;
-                }
-            } else {
-                request['amount'] = amount;
-            }
-        }
-        if (type !== 'market') {
-            request['price'] = orderPrice;
-            request['amount'] = amount;
-        }
-        params = this.omit (params, 'cost');
-        const response = await this[method] (this.extend (request, params));
-        const timestamp = this.milliseconds ();
-        return {
-            'info': response,
-            'id': this.safeString (response, 'order_id'),
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'lastTradeTimestamp': undefined,
-            'status': undefined,
-            'symbol': symbol,
-            'type': type,
-            'side': side,
-            'price': price,
-            'amount': amount,
-            'filled': undefined,
-            'remaining': undefined,
-            'cost': undefined,
-            'trades': undefined,
-            'fee': undefined,
-        };
-    }
-
-    async cancelOrder (id, symbol = undefined, params = {}) {
-        if (symbol === undefined) {
-            throw new ArgumentsRequired (this.id + ' cancelOrder() requires a symbol argument');
-        }
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'privatePostFutureCancel' : 'privatePostCancelOrder';
-        const request = this.createRequest (market, {
-            'order_id': id,
-        });
-        const response = await this[method] (this.extend (request, params));
-        return response;
-    }
-
-    parseOrderStatus (status) {
-        const statuses = {
-            '-1': 'canceled',
-            '0': 'open',
-            '1': 'open',
-            '2': 'closed',
-            '3': 'open',
-            '4': 'canceled',
-        };
-        return this.safeValue (statuses, status, status);
-    }
-
-    parseOrderSide (side) {
-        if (side === 1) {
-            return 'buy'; // open long position
-        } else if (side === 2) {
-            return 'sell'; // open short position
-        } else if (side === 3) {
-            return 'sell'; // liquidate long position
-        } else if (side === 4) {
-            return 'buy'; // liquidate short position
-        }
-        return side;
-    }
-
-    parseOrder (order, market = undefined) {
-        let side = undefined;
-        let type = undefined;
-        if ('type' in order) {
-            if ((order['type'] === 'buy') || (order['type'] === 'sell')) {
-                side = order['type'];
-                type = 'limit';
-            } else if (order['type'] === 'buy_market') {
-                side = 'buy';
-                type = 'market';
-            } else if (order['type'] === 'sell_market') {
-                side = 'sell';
-                type = 'market';
-            } else {
-                side = this.parseOrderSide (order['type']);
-                if (('contract_name' in order) || ('lever_rate' in order)) {
-                    type = 'margin';
-                }
-            }
-        }
-        const status = this.parseOrderStatus (this.safeString (order, 'status'));
-        let symbol = undefined;
-        if (market === undefined) {
-            const marketId = this.safeString (order, 'symbol');
-            if (marketId in this.markets_by_id) {
-                market = this.markets_by_id[marketId];
-            }
-        }
-        if (market) {
-            symbol = market['symbol'];
-        }
-        const createDateField = this.getCreateDateField ();
-        const timestamp = this.safeInteger (order, createDateField);
-        let amount = this.safeFloat (order, 'amount');
-        const filled = this.safeFloat (order, 'deal_amount');
-        amount = Math.max (amount, filled);
-        let remaining = Math.max (0, amount - filled);
-        if (type === 'market') {
-            remaining = 0;
-        }
-        let average = this.safeFloat (order, 'avg_price');
-        // https://github.com/ccxt/ccxt/issues/2452
-        average = this.safeFloat (order, 'price_avg', average);
-        const cost = average * filled;
-        return {
-            'info': order,
-            'id': this.safeString (order, 'order_id'),
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'lastTradeTimestamp': undefined,
-            'symbol': symbol,
-            'type': type,
-            'side': side,
-            'price': this.safeFloat (order, 'price'),
-            'average': average,
-            'cost': cost,
-            'amount': amount,
-            'filled': filled,
-            'remaining': remaining,
-            'status': status,
-            'fee': undefined,
-        };
-    }
-
-    getCreateDateField () {
-        // needed for derived exchanges
-        // allcoin typo create_data instead of create_date
-        return 'create_date';
-    }
-
-    getOrdersField () {
-        // needed for derived exchanges
-        // allcoin typo order instead of orders (expected based on their API docs)
-        return 'orders';
-    }
-
-    async fetchOrder (id, symbol = undefined, params = {}) {
-        if (symbol === undefined) {
-            throw new ExchangeError (this.id + ' fetchOrder requires a symbol argument');
-        }
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'privatePostFutureOrderInfo' : 'privatePostOrderInfo';
-        const request = this.createRequest (market, {
-            'order_id': id,
-            // 'status': 0, // 0 for unfilled orders, 1 for filled orders
-            // 'current_page': 1, // current page number
-            // 'page_length': 200, // number of orders returned per page, maximum 200
-        });
-        const response = await this[method] (this.extend (request, params));
-        const ordersField = this.getOrdersField ();
-        const numOrders = response[ordersField].length;
-        if (numOrders > 0) {
-            return this.parseOrder (response[ordersField][0]);
-        }
-        throw new OrderNotFound (this.id + ' order ' + id + ' not found');
-    }
-
-    async fetchOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        if (symbol === undefined) {
-            throw new ExchangeError (this.id + ' fetchOrders requires a symbol argument');
-        }
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        let method = market['future'] ? 'privatePostFutureOrdersInfo' : 'privatePost';
-        let request = this.createRequest (market);
-        const order_id_in_params = ('order_id' in params);
-        if (market['future']) {
-            if (!order_id_in_params) {
-                throw new ExchangeError (this.id + ' fetchOrders() requires order_id param for futures market ' + symbol + ' (a string of one or more order ids, comma-separated)');
-            }
-        } else {
-            const status = ('type' in params) ? params['type'] : params['status'];
-            if (typeof status === 'undefined') {
-                const name = order_id_in_params ? 'type' : 'status';
-                throw new ExchangeError (this.id + ' fetchOrders() requires ' + name + ' param for spot market ' + symbol + ' (0 - for unfilled orders, 1 - for filled/canceled orders)');
-            }
-            if (order_id_in_params) {
-                method += 'OrdersInfo';
-                request = this.extend (request, {
-                    'type': status,
-                    'order_id': params['order_id'],
-                });
-            } else {
-                method += 'OrderHistory';
-                request = this.extend (request, {
-                    'status': status,
-                    'current_page': 1, // current page number
-                    'page_length': 200, // number of orders returned per page, maximum 200
-                });
-            }
-            params = this.omit (params, [ 'type', 'status' ]);
-        }
-        const response = await this[method] (this.extend (request, params));
-        const ordersField = this.getOrdersField ();
-        return this.parseOrders (response[ordersField], market, since, limit);
-    }
-
-    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        const request = {
-            'status': 0, // 0 for unfilled orders, 1 for filled orders
-        };
-        return await this.fetchOrders (symbol, since, limit, this.extend (request, params));
-    }
-
-    async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        const request = {
-            'status': 1, // 0 for unfilled orders, 1 for filled orders
-        };
-        return await this.fetchOrders (symbol, since, limit, this.extend (request, params));
-    }
-
-    async withdraw (code, amount, address, tag = undefined, params = {}) {
-        this.checkAddress (address);
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        // if (amount < 0.01)
-        //     throw new ExchangeError (this.id + ' withdraw() requires amount > 0.01');
-        // for some reason they require to supply a pair of currencies for withdrawing one currency
-        const currencyId = currency['id'] + '_usd';
-        if (tag) {
-            address = address + ':' + tag;
-        }
-        const request = {
-            'symbol': currencyId,
-            'withdraw_address': address,
-            'withdraw_amount': amount,
-            'target': 'address', // or 'okcn', 'okcom', 'okex'
-        };
-        let query = params;
-        if ('chargefee' in query) {
-            request['chargefee'] = query['chargefee'];
-            query = this.omit (query, 'chargefee');
-        } else {
-            throw new ExchangeError (this.id + ' withdraw() requires a `chargefee` parameter');
-        }
-        if (this.password) {
-            request['trade_pwd'] = this.password;
-        } else if ('password' in query) {
-            request['trade_pwd'] = query['password'];
-            query = this.omit (query, 'password');
-        } else if ('trade_pwd' in query) {
-            request['trade_pwd'] = query['trade_pwd'];
-            query = this.omit (query, 'trade_pwd');
-        }
-        const passwordInRequest = ('trade_pwd' in request);
-        if (!passwordInRequest) {
-            throw new ExchangeError (this.id + ' withdraw() requires this.password set on the exchange instance or a password / trade_pwd parameter');
-        }
-        const response = await this.privatePostWithdraw (this.extend (request, query));
-        return {
-            'info': response,
-            'id': this.safeString (response, 'withdraw_id'),
-        };
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = '/';
-        const isWebApi = (api === 'web') || (api === 'v3');
-        if (!isWebApi) {
-            url += this.version + '/';
-        }
-        url += path;
-        if (!isWebApi) {
-            url += this.extension;
-        }
-        if (api === 'private') {
-            this.checkRequiredCredentials ();
-            const query = this.keysort (this.extend ({
-                'api_key': this.apiKey,
-            }, params));
-            // secret key must be at the end of query
-            const queryString = this.rawencode (query) + '&secret_key=' + this.secret;
-            query['sign'] = this.hash (this.encode (queryString)).toUpperCase ();
-            body = this.urlencode (query);
-            headers = { 'Content-Type': 'application/x-www-form-urlencoded' };
-        } else {
-            if (Object.keys (params).length) {
-                url += '?' + this.urlencode (params);
-            }
-        }
-        url = this.urls['api'][api] + url;
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-
-    createRequest (market, params = {}) {
-        if (market['future']) {
-            return this.deepExtend ({
-                'symbol': market['lowercaseId'],
-                'contract_type': market['contractType'],
-            }, params);
-        }
-        return this.deepExtend ({
-            'symbol': market['id'],
-        }, params);
-    }
-
-    handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
-        if (response === undefined) {
-            return; // fallback to default error handler
-        }
-        const error = this.safeString2 (response, 'error_code', 'code');
-        if ((error !== undefined) && (error !== '0')) {
-            const message = this.id + ' ' + body;
-            this.throwExactlyMatchedException (this.exceptions, error, message);
-            throw new ExchangeError (message);
-        }
-        if ('result' in response) {
-            if (!response['result']) {
-                throw new ExchangeError (this.id + ' ' + body);
-            }
-        }
-    }
-};
-
-},{"./base/Exchange":7,"./base/errors":9}],117:[function(require,module,exports){
-'use strict';
-
-// ---------------------------------------------------------------------------
-
-const okcoinusd = require ('./okcoinusd.js');
-
-// ---------------------------------------------------------------------------
-
-module.exports = class okex extends okcoinusd {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'okex',
-            'name': 'OKEX',
-            'countries': [ 'CN', 'US' ],
-            'has': {
-                'CORS': false,
-                'futures': true,
-                'fetchTickers': true,
-            },
-            'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/32552768-0d6dd3c6-c4a6-11e7-90f8-c043b64756a7.jpg',
-                'api': {
-                    'v3': 'https://www.okex.com/v3',
-                    'web': 'https://www.okex.com/v2',
-                    'public': 'https://www.okex.com/api',
-                    'private': 'https://www.okex.com/api',
-                },
-                'www': 'https://www.okex.com',
-                'doc': [
-                    'https://github.com/okcoin-okex/API-docs-OKEx.com',
-                    'https://www.okex.com/docs/en/',
-                ],
-                'fees': 'https://www.okex.com/pages/products/fees.html',
-                'referral': 'https://www.okex.com',
-            },
-            'fees': {
-                'trading': {
-                    'taker': 0.0015,
-                    'maker': 0.0010,
-                },
-                'spot': {
-                    'taker': 0.0015,
-                    'maker': 0.0010,
-                },
-                'future': {
-                    'taker': 0.0005,
-                    'maker': 0.0002,
-                },
-                'swap': {
-                    'taker': 0.00075,
-                    'maker': 0.0002,
-                },
-            },
-            'commonCurrencies': {
-                // OKEX refers to ERC20 version of Aeternity (AEToken)
-                'AE': 'AET', // https://github.com/ccxt/ccxt/issues/4981
-                'HOT': 'Hydro Protocol',
-                'HSR': 'HC',
-                'MAG': 'Maggie',
-                'YOYO': 'YOYOW',
-                'WIN': 'WinToken', // https://github.com/ccxt/ccxt/issues/5701
+                'fetchMarkets': [ 'spot' ],
             },
         });
     }
 };
 
-},{"./okcoinusd.js":116}],118:[function(require,module,exports){
+},{"./okex.js":115}],115:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError, ExchangeNotAvailable, ArgumentsRequired, BadRequest, AccountSuspended, InvalidAddress, PermissionDenied, DDoSProtection, InsufficientFunds, InvalidNonce, CancelPending, InvalidOrder, OrderNotFound, AuthenticationError, RequestTimeout, NotSupported, BadSymbol } = require ('./base/errors');
+const { ExchangeError, ExchangeNotAvailable, OnMaintenance, ArgumentsRequired, BadRequest, AccountSuspended, InvalidAddress, PermissionDenied, DDoSProtection, InsufficientFunds, InvalidNonce, CancelPending, InvalidOrder, OrderNotFound, AuthenticationError, RequestTimeout, NotSupported, BadSymbol } = require ('./base/errors');
+const { TICK_SIZE, TRUNCATE } = require ('./base/functions/number');
 
 //  ---------------------------------------------------------------------------
 
-module.exports = class okex3 extends Exchange {
+module.exports = class okex extends Exchange {
     describe () {
         return this.deepExtend (super.describe (), {
-            'id': 'okex3',
+            'id': 'okex',
             'name': 'OKEX',
             'countries': [ 'CN', 'US' ],
             'version': 'v3',
             'rateLimit': 1000, // up to 3000 requests per 5 minutes ≈ 600 requests per minute ≈ 10 requests per second ≈ 100 ms
+            'pro': true,
             'has': {
                 'CORS': false,
                 'fetchOHLCV': true,
@@ -73783,7 +75391,7 @@ module.exports = class okex3 extends Exchange {
                 'fetchWithdrawals': true,
                 'fetchTime': true,
                 'fetchTransactions': false,
-                'fetchMyTrades': false, // they don't have it
+                'fetchMyTrades': true,
                 'fetchDepositAddress': true,
                 'fetchOrderTrades': true,
                 'fetchTickers': true,
@@ -73805,12 +75413,16 @@ module.exports = class okex3 extends Exchange {
                 '1d': '86400',
                 '1w': '604800',
             },
+            'hostname': 'okex.com',
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/32552768-0d6dd3c6-c4a6-11e7-90f8-c043b64756a7.jpg',
-                'api': 'https://www.okex.com',
+                'api': {
+                    'rest': 'https://www.{hostname}',
+                },
                 'www': 'https://www.okex.com',
                 'doc': 'https://www.okex.com/docs/en/',
                 'fees': 'https://www.okex.com/pages/products/fees.html',
+                'referral': 'https://www.okex.com/join/1888677',
             },
             'api': {
                 'general': {
@@ -73820,16 +75432,18 @@ module.exports = class okex3 extends Exchange {
                 },
                 'account': {
                     'get': [
-                        'currencies',
                         'wallet',
+                        'sub-account',
+                        'asset-valuation',
                         'wallet/{currency}',
-                        'withdrawal/fee',
                         'withdrawal/history',
                         'withdrawal/history/{currency}',
                         'ledger',
                         'deposit/address',
                         'deposit/history',
                         'deposit/history/{currency}',
+                        'currencies',
+                        'withdrawal/fee',
                     ],
                     'post': [
                         'transfer',
@@ -73845,6 +75459,7 @@ module.exports = class okex3 extends Exchange {
                         'orders_pending',
                         'orders/{order_id}',
                         'orders/{client_oid}',
+                        'trade_fee',
                         'fills',
                         'algo',
                         // public
@@ -73875,10 +75490,13 @@ module.exports = class okex3 extends Exchange {
                         'accounts/borrowed',
                         'accounts/{instrument_id}/borrowed',
                         'orders',
+                        'accounts/{instrument_id}/leverage',
                         'orders/{order_id}',
                         'orders/{client_oid}',
                         'orders_pending',
                         'fills',
+                        // public
+                        'instruments/{instrument_id}/mark_price',
                     ],
                     'post': [
                         'accounts/borrow',
@@ -73889,6 +75507,7 @@ module.exports = class okex3 extends Exchange {
                         'cancel_orders/{order_id}',
                         'cancel_orders/{client_oid}',
                         'cancel_batch_orders',
+                        'accounts/{instrument_id}/leverage',
                     ],
                 },
                 'futures': {
@@ -73896,14 +75515,17 @@ module.exports = class okex3 extends Exchange {
                         'position',
                         '{instrument_id}/position',
                         'accounts',
-                        'accounts/{currency}',
-                        'accounts/{currency}/leverage',
-                        'accounts/{currency}/ledger',
+                        'accounts/{underlying}',
+                        'accounts/{underlying}/leverage',
+                        'accounts/{underlying}/ledger',
                         'order_algo/{instrument_id}',
                         'orders/{instrument_id}',
                         'orders/{instrument_id}/{order_id}',
                         'orders/{instrument_id}/{client_oid}',
                         'fills',
+                        'trade_fee',
+                        'accounts/{instrument_id}/holds',
+                        'order_algo/{instrument_id}',
                         // public
                         'instruments',
                         'instruments/{instrument_id}/book',
@@ -73911,27 +75533,26 @@ module.exports = class okex3 extends Exchange {
                         'instruments/{instrument_id}/ticker',
                         'instruments/{instrument_id}/trades',
                         'instruments/{instrument_id}/candles',
-                        'accounts/{instrument_id}/holds',
                         'instruments/{instrument_id}/index',
                         'rate',
                         'instruments/{instrument_id}/estimated_price',
                         'instruments/{instrument_id}/open_interest',
                         'instruments/{instrument_id}/price_limit',
-                        'instruments/{instrument_id}/liquidation',
                         'instruments/{instrument_id}/mark_price',
+                        'instruments/{instrument_id}/liquidation',
                     ],
                     'post': [
-                        'accounts/{currency}/leverage',
-                        'accounts/margin_mode',
+                        'accounts/{underlying}/leverage',
                         'order',
                         'orders',
-                        'order_algo',
-                        'cancel_algos',
                         'cancel_order/{instrument_id}/{order_id}',
                         'cancel_order/{instrument_id}/{client_oid}',
                         'cancel_batch_orders/{instrument_id}',
+                        'accounts/margin_mode',
                         'close_position',
                         'cancel_all',
+                        'order_algo',
+                        'cancel_algos',
                     ],
                 },
                 'swap': {
@@ -73942,12 +75563,13 @@ module.exports = class okex3 extends Exchange {
                         '{instrument_id}/accounts',
                         'accounts/{instrument_id}/settings',
                         'accounts/{instrument_id}/ledger',
-                        'accounts/{instrument_id}/holds',
-                        'order_algo/{instrument_id}',
                         'orders/{instrument_id}',
                         'orders/{instrument_id}/{order_id}',
                         'orders/{instrument_id}/{client_oid}',
                         'fills',
+                        'accounts/{instrument_id}/holds',
+                        'trade_fee',
+                        'order_algo/{instrument_id}',
                         // public
                         'instruments',
                         'instruments/{instrument_id}/depth',
@@ -73967,28 +75589,48 @@ module.exports = class okex3 extends Exchange {
                     'post': [
                         'accounts/{instrument_id}/leverage',
                         'order',
-                        'order_algo',
                         'orders',
-                        'cancel_algos',
                         'cancel_order/{instrument_id}/{order_id}',
                         'cancel_order/{instrument_id}/{client_oid}',
                         'cancel_batch_orders/{instrument_id}',
+                        'order_algo',
+                        'cancel_algos',
                     ],
                 },
-                // they have removed this part from public
-                'ett': {
+                'option': {
                     'get': [
                         'accounts',
-                        'accounts/{currency}',
-                        'accounts/{currency}/ledger',
-                        'orders', // fetchOrder, fetchOrders
+                        '{underlying}/position',
+                        'accounts/{underlying}',
+                        'orders/{underlying}',
+                        'fills/{underlying}',
+                        'accounts/{underlying}/ledger',
+                        'trade_fee',
+                        'orders/{underlying}/{order_id}',
+                        'orders/{underlying}/{client_oid}',
                         // public
-                        'constituents/{ett}',
-                        'define-price/{ett}',
+                        'underlying',
+                        'instruments/{underlying}',
+                        'instruments/{underlying}/summary',
+                        'instruments/{underlying}/summary/{instrument_id}',
+                        'instruments/{instrument_id}/book',
+                        'instruments/{instrument_id}/trades',
+                        'instruments/{instrument_id}/ticker',
+                        'instruments/{instrument_id}/candles',
                     ],
                     'post': [
+                        'order',
                         'orders',
-                        'orders/{order_id}',
+                        'cancel_order/{underlying}/{order_id}',
+                        'cancel_order/{underlying}/{client_oid}',
+                        'cancel_batch_orders/{underlying}',
+                        'amend_order/{underlying}',
+                        'amend_batch_orders/{underlying}',
+                    ],
+                },
+                'index': {
+                    'get': [
+                        '{instrument_id}/constituents',
                     ],
                 },
             },
@@ -74028,6 +75670,10 @@ module.exports = class okex3 extends Exchange {
                     'failure to get a peer from the ring-balancer': ExchangeNotAvailable, // { "message": "failure to get a peer from the ring-balancer" }
                     '4010': PermissionDenied, // { "code": 4010, "message": "For the security of your funds, withdrawals are not permitted within 24 hours after changing fund password  / mobile number / Google Authenticator settings " }
                     // common
+                    // '0': ExchangeError, // 200 successful,when the order placement / cancellation / operation is successful
+                    '4001': ExchangeError, // no data received in 30s
+                    '4002': ExchangeError, // Buffer full. cannot write data
+                    // --------------------------------------------------------
                     '30001': AuthenticationError, // { "code": 30001, "message": 'request header "OK_ACCESS_KEY" cannot be blank'}
                     '30002': AuthenticationError, // { "code": 30002, "message": 'request header "OK_ACCESS_SIGN" cannot be blank'}
                     '30003': AuthenticationError, // { "code": 30003, "message": 'request header "OK_ACCESS_TIMESTAMP" cannot be blank'}
@@ -74064,8 +75710,9 @@ module.exports = class okex3 extends Exchange {
                     '30034': ExchangeError, // { "code": 30034, "message": "exchange ID does not exist" }
                     '30035': ExchangeError, // { "code": 30035, "message": "trading is not supported in this website" }
                     '30036': ExchangeError, // { "code": 30036, "message": "no relevant data" }
-                    '30038': AuthenticationError, // { "code": 30038, "message": "user does not exist" }
                     '30037': ExchangeNotAvailable, // { "code": 30037, "message": "endpoint is offline or unavailable" }
+                    // '30038': AuthenticationError, // { "code": 30038, "message": "user does not exist" }
+                    '30038': OnMaintenance, // {"client_oid":"","code":"30038","error_code":"30038","error_message":"Matching engine is being upgraded. Please try in about 1 minute.","message":"Matching engine is being upgraded. Please try in about 1 minute.","order_id":"-1","result":false}
                     // futures
                     '32001': AccountSuspended, // { "code": 32001, "message": "futures account suspended" }
                     '32002': PermissionDenied, // { "code": 32002, "message": "futures account does not exist" }
@@ -74093,10 +75740,51 @@ module.exports = class okex3 extends Exchange {
                     '32024': ExchangeError, // { "code": 32024, "message": "order cannot be placed during delivery" }
                     '32025': ExchangeError, // { "code": 32025, "message": "order cannot be placed during settlement" }
                     '32026': ExchangeError, // { "code": 32026, "message": "your account is restricted from opening positions" }
-                    '32029': ExchangeError, // { "code": 32029, "message": "order info does not exist" }
-                    '32028': ExchangeError, // { "code": 32028, "message": "account is suspended and liquidated" }
                     '32027': ExchangeError, // { "code": 32027, "message": "cancelled over 20 orders" }
+                    '32028': ExchangeError, // { "code": 32028, "message": "account is suspended and liquidated" }
+                    '32029': ExchangeError, // { "code": 32029, "message": "order info does not exist" }
+                    '32030': InvalidOrder, // The order cannot be cancelled
+                    '32031': ArgumentsRequired, // client_oid or order_id is required.
+                    '32038': AuthenticationError, // User does not exist
+                    '32040': ExchangeError, // User have open contract orders or position
                     '32044': ExchangeError, // { "code": 32044, "message": "The margin ratio after submitting this order is lower than the minimum requirement ({0}) for your tier." }
+                    '32045': ExchangeError, // String of commission over 1 million
+                    '32046': ExchangeError, // Each user can hold up to 10 trade plans at the same time
+                    '32047': ExchangeError, // system error
+                    '32048': InvalidOrder, // Order strategy track range error
+                    '32049': ExchangeError, // Each user can hold up to 10 track plans at the same time
+                    '32050': InvalidOrder, // Order strategy rang error
+                    '32051': InvalidOrder, // Order strategy ice depth error
+                    '32052': ExchangeError, // String of commission over 100 thousand
+                    '32053': ExchangeError, // Each user can hold up to 6 ice plans at the same time
+                    '32057': ExchangeError, // The order price is zero. Market-close-all function cannot be executed
+                    '32054': ExchangeError, // Trade not allow
+                    '32055': InvalidOrder, // cancel order error
+                    '32056': ExchangeError, // iceberg per order average should between {0}-{1} contracts
+                    '32058': ExchangeError, // Each user can hold up to 6 initiative plans at the same time
+                    '32059': InvalidOrder, // Total amount should exceed per order amount
+                    '32060': InvalidOrder, // Order strategy type error
+                    '32061': InvalidOrder, // Order strategy initiative limit error
+                    '32062': InvalidOrder, // Order strategy initiative range error
+                    '32063': InvalidOrder, // Order strategy initiative rate error
+                    '32064': ExchangeError, // Time Stringerval of orders should set between 5-120s
+                    '32065': ExchangeError, // Close amount exceeds the limit of Market-close-all (999 for BTC, and 9999 for the rest tokens)
+                    '32066': ExchangeError, // You have open orders. Please cancel all open orders before changing your leverage level.
+                    '32067': ExchangeError, // Account equity < required margin in this setting. Please adjust your leverage level again.
+                    '32068': ExchangeError, // The margin for this position will fall short of the required margin in this setting. Please adjust your leverage level or increase your margin to proceed.
+                    '32069': ExchangeError, // Target leverage level too low. Your account balance is insufficient to cover the margin required. Please adjust the leverage level again.
+                    '32070': ExchangeError, // Please check open position or unfilled order
+                    '32071': ExchangeError, // Your current liquidation mode does not support this action.
+                    '32072': ExchangeError, // The highest available margin for your order’s tier is {0}. Please edit your margin and place a new order.
+                    '32073': ExchangeError, // The action does not apply to the token
+                    '32074': ExchangeError, // The number of contracts of your position, open orders, and the current order has exceeded the maximum order limit of this asset.
+                    '32075': ExchangeError, // Account risk rate breach
+                    '32076': ExchangeError, // Liquidation of the holding position(s) at market price will require cancellation of all pending close orders of the contracts.
+                    '32077': ExchangeError, // Your margin for this asset in futures account is insufficient and the position has been taken over for liquidation. (You will not be able to place orders, close positions, transfer funds, or add margin during this period of time. Your account will be restored after the liquidation is complete.)
+                    '32078': ExchangeError, // Please cancel all open orders before switching the liquidation mode(Please cancel all open orders before switching the liquidation mode)
+                    '32079': ExchangeError, // Your open positions are at high risk.(Please add margin or reduce positions before switching the mode)
+                    '32080': ExchangeError, // Funds cannot be transferred out within 30 minutes after futures settlement
+                    '32083': ExchangeError, // The number of contracts should be a positive multiple of %%. Please place your order again
                     // token and margin trading
                     '33001': PermissionDenied, // { "code": 33001, "message": "margin account for this pair is not enabled yet" }
                     '33002': AccountSuspended, // { "code": 33002, "message": "margin account for this pair is suspended" }
@@ -74127,9 +75815,32 @@ module.exports = class okex3 extends Exchange {
                     '33028': InvalidOrder, // { "code": 33028, "message": "the decimal places of the trading price exceeded the limit" }
                     '33029': InvalidOrder, // { "code": 33029, "message": "the decimal places of the trading size exceeded the limit" }
                     '33034': ExchangeError, // { "code": 33034, "message": "You can only place limit order after Call Auction has started" }
+                    '33035': ExchangeError, // This type of order cannot be canceled(This type of order cannot be canceled)
+                    '33036': ExchangeError, // Exceeding the limit of entrust order
+                    '33037': ExchangeError, // The buy order price should be lower than 130% of the trigger price
+                    '33038': ExchangeError, // The sell order price should be higher than 70% of the trigger price
+                    '33039': ExchangeError, // The limit of callback rate is 0 < x <= 5%
+                    '33040': ExchangeError, // The trigger price of a buy order should be lower than the latest transaction price
+                    '33041': ExchangeError, // The trigger price of a sell order should be higher than the latest transaction price
+                    '33042': ExchangeError, // The limit of price variance is 0 < x <= 1%
+                    '33043': ExchangeError, // The total amount must be larger than 0
+                    '33044': ExchangeError, // The average amount should be 1/1000 * total amount <= x <= total amount
+                    '33045': ExchangeError, // The price should not be 0, including trigger price, order price, and price limit
+                    '33046': ExchangeError, // Price variance should be 0 < x <= 1%
+                    '33047': ExchangeError, // Sweep ratio should be 0 < x <= 100%
+                    '33048': ExchangeError, // Per order limit: Total amount/1000 < x <= Total amount
+                    '33049': ExchangeError, // Total amount should be X > 0
+                    '33050': ExchangeError, // Time interval should be 5 <= x <= 120s
+                    '33051': ExchangeError, // cancel order number not higher limit: plan and track entrust no more than 10, ice and time entrust no more than 6
                     '33059': BadRequest, // { "code": 33059, "message": "client_oid or order_id is required" }
                     '33060': BadRequest, // { "code": 33060, "message": "Only fill in either parameter client_oid or order_id" }
+                    '33061': ExchangeError, // Value of a single market price order cannot exceed 100,000 USD
+                    '33062': ExchangeError, // The leverage ratio is too high. The borrowed position has exceeded the maximum position of this leverage ratio. Please readjust the leverage ratio
+                    '33063': ExchangeError, // Leverage multiple is too low, there is insufficient margin in the account, please readjust the leverage ratio
+                    '33064': ExchangeError, // The setting of the leverage ratio cannot be less than 2, please readjust the leverage ratio
+                    '33065': ExchangeError, // Leverage ratio exceeds maximum leverage ratio, please readjust leverage ratio
                     // account
+                    '21009': ExchangeError, // Funds cannot be transferred out within 30 minutes after swap settlement(Funds cannot be transferred out within 30 minutes after swap settlement)
                     '34001': PermissionDenied, // { "code": 34001, "message": "withdrawal suspended" }
                     '34002': InvalidAddress, // { "code": 34002, "message": "please add a withdrawal address" }
                     '34003': ExchangeError, // { "code": 34003, "message": "sorry, this token cannot be withdrawn to xx at the moment" }
@@ -74153,6 +75864,11 @@ module.exports = class okex3 extends Exchange {
                     '34021': InvalidAddress, // { "code": 34021, "message": "Not verified address" }
                     '34022': ExchangeError, // { "code": 34022, "message": "Withdrawals are not available for sub accounts" }
                     '34023': PermissionDenied, // { "code": 34023, "message": "Please enable futures trading before transferring your funds" }
+                    '34026': ExchangeError, // transfer too frequently(transfer too frequently)
+                    '34036': ExchangeError, // Parameter is incorrect, please refer to API documentation
+                    '34037': ExchangeError, // Get the sub-account balance interface, account type is not supported
+                    '34038': ExchangeError, // Since your C2C transaction is unusual, you are restricted from fund transfer. Please contact our customer support to cancel the restriction
+                    '34039': ExchangeError, // You are now restricted from transferring out your funds due to abnormal trades on C2C Market. Please transfer your fund on our website or app instead to verify your identity
                     // swap
                     '35001': ExchangeError, // { "code": 35001, "message": "Contract does not exist" }
                     '35002': ExchangeError, // { "code": 35002, "message": "Contract settling" }
@@ -74176,6 +75892,7 @@ module.exports = class okex3 extends Exchange {
                     '35030': InvalidOrder, // { "code": 35030, "message": "Order size too large" }
                     '35031': InvalidOrder, // { "code": 35031, "message": "Cancel order size too large" }
                     '35032': ExchangeError, // { "code": 35032, "message": "Invalid user status" }
+                    '35037': ExchangeError, // No last traded price in cache
                     '35039': ExchangeError, // { "code": 35039, "message": "Open order quantity exceeds limit" }
                     '35040': InvalidOrder, // {"error_message":"Invalid order type","result":"true","error_code":"35040","order_id":"-1"}
                     '35044': ExchangeError, // { "code": 35044, "message": "Invalid order status" }
@@ -74195,21 +75912,97 @@ module.exports = class okex3 extends Exchange {
                     '35062': InvalidOrder, // { "code": 35062, "message": "Invalid match_price" }
                     '35063': InvalidOrder, // { "code": 35063, "message": "Invalid order_size" }
                     '35064': InvalidOrder, // { "code": 35064, "message": "Invalid client_oid" }
+                    '35066': InvalidOrder, // Order interval error
+                    '35067': InvalidOrder, // Time-weighted order ratio error
+                    '35068': InvalidOrder, // Time-weighted order range error
+                    '35069': InvalidOrder, // Time-weighted single transaction limit error
+                    '35070': InvalidOrder, // Algo order type error
+                    '35071': InvalidOrder, // Order total must be larger than single order limit
+                    '35072': InvalidOrder, // Maximum 6 unfulfilled time-weighted orders can be held at the same time
+                    '35073': InvalidOrder, // Order price is 0. Market-close-all not available
+                    '35074': InvalidOrder, // Iceberg order single transaction average error
+                    '35075': InvalidOrder, // Failed to cancel order
+                    '35076': InvalidOrder, // LTC 20x leverage. Not allowed to open position
+                    '35077': InvalidOrder, // Maximum 6 unfulfilled iceberg orders can be held at the same time
+                    '35078': InvalidOrder, // Order amount exceeded 100,000
+                    '35079': InvalidOrder, // Iceberg order price variance error
+                    '35080': InvalidOrder, // Callback rate error
+                    '35081': InvalidOrder, // Maximum 10 unfulfilled trail orders can be held at the same time
+                    '35082': InvalidOrder, // Trail order callback rate error
+                    '35083': InvalidOrder, // Each user can only hold a maximum of 10 unfulfilled stop-limit orders at the same time
+                    '35084': InvalidOrder, // Order amount exceeded 1 million
+                    '35085': InvalidOrder, // Order amount is not in the correct range
+                    '35086': InvalidOrder, // Price exceeds 100 thousand
+                    '35087': InvalidOrder, // Price exceeds 100 thousand
+                    '35088': InvalidOrder, // Average amount error
+                    '35089': InvalidOrder, // Price exceeds 100 thousand
+                    '35090': ExchangeError, // No stop-limit orders available for cancelation
+                    '35091': ExchangeError, // No trail orders available for cancellation
+                    '35092': ExchangeError, // No iceberg orders available for cancellation
+                    '35093': ExchangeError, // No trail orders available for cancellation
+                    '35094': ExchangeError, // Stop-limit order last traded price error
+                    '35095': BadRequest, // Instrument_id error
+                    '35096': ExchangeError, // Algo order status error
+                    '35097': ExchangeError, // Order status and order ID cannot exist at the same time
+                    '35098': ExchangeError, // An order status or order ID must exist
+                    '35099': ExchangeError, // Algo order ID error
+                    // option
+                    '36001': BadRequest, // Invalid underlying index.
+                    '36002': BadRequest, // Instrument does not exist.
+                    '36005': ExchangeError, // Instrument status is invalid.
+                    '36101': AuthenticationError, // Account does not exist.
+                    '36102': PermissionDenied, // Account status is invalid.
+                    '36103': PermissionDenied, // Account is suspended due to ongoing liquidation.
+                    '36104': PermissionDenied, // Account is not enabled for options trading.
+                    '36105': PermissionDenied, // Please enable the account for option contract.
+                    '36106': PermissionDenied, // Funds cannot be transferred in or out, as account is suspended.
+                    '36107': PermissionDenied, // Funds cannot be transferred out within 30 minutes after option exercising or settlement.
+                    '36108': InsufficientFunds, // Funds cannot be transferred in or out, as equity of the account is less than zero.
+                    '36109': PermissionDenied, // Funds cannot be transferred in or out during option exercising or settlement.
+                    '36201': PermissionDenied, // New order function is blocked.
+                    '36202': PermissionDenied, // Account does not have permission to short option.
+                    '36203': InvalidOrder, // Invalid format for client_oid.
+                    '36204': ExchangeError, // Invalid format for request_id.
+                    '36205': BadRequest, // Instrument id does not match underlying index.
+                    '36206': BadRequest, // Order_id and client_oid can not be used at the same time.
+                    '36207': InvalidOrder, // Either order price or fartouch price must be present.
+                    '36208': InvalidOrder, // Either order price or size must be present.
+                    '36209': InvalidOrder, // Either order_id or client_oid must be present.
+                    '36210': InvalidOrder, // Either order_ids or client_oids must be present.
+                    '36211': InvalidOrder, // Exceeding max batch size for order submission.
+                    '36212': InvalidOrder, // Exceeding max batch size for oder cancellation.
+                    '36213': InvalidOrder, // Exceeding max batch size for order amendment.
+                    '36214': ExchangeError, // Instrument does not have valid bid/ask quote.
+                    '36216': OrderNotFound, // Order does not exist.
+                    '36217': InvalidOrder, // Order submission failed.
+                    '36218': InvalidOrder, // Order cancellation failed.
+                    '36219': InvalidOrder, // Order amendment failed.
+                    '36220': InvalidOrder, // Order is pending cancel.
+                    '36221': InvalidOrder, // Order qty is not valid multiple of lot size.
+                    '36222': InvalidOrder, // Order price is breaching highest buy limit.
+                    '36223': InvalidOrder, // Order price is breaching lowest sell limit.
+                    '36224': InvalidOrder, // Exceeding max order size.
+                    '36225': InvalidOrder, // Exceeding max open order count for instrument.
+                    '36226': InvalidOrder, // Exceeding max open order count for underlying.
+                    '36227': InvalidOrder, // Exceeding max open size across all orders for underlying
+                    '36228': InvalidOrder, // Exceeding max available qty for instrument.
+                    '36229': InvalidOrder, // Exceeding max available qty for underlying.
+                    '36230': InvalidOrder, // Exceeding max position limit for underlying.
                 },
                 'broad': {
                 },
             },
+            'precisionMode': TICK_SIZE,
             'options': {
                 'createMarketBuyOrderRequiresPrice': true,
-                'fetchMarkets': [ 'spot', 'futures', 'swap' ],
-                'defaultType': 'spot', // 'account', 'spot', 'margin', 'futures', 'swap'
+                'fetchMarkets': [ 'spot', 'futures', 'swap', 'option' ],
+                'defaultType': 'spot', // 'account', 'spot', 'margin', 'futures', 'swap', 'option'
                 'auth': {
                     'time': 'public',
                     'currencies': 'private',
                     'instruments': 'public',
                     'rate': 'public',
-                    'constituents/{ett}': 'public',
-                    'define-price/{ett}': 'public',
+                    '{instrument_id}/constituents': 'public',
                 },
             },
             'commonCurrencies': {
@@ -74257,85 +76050,109 @@ module.exports = class okex3 extends Exchange {
         //
         // spot markets
         //
-        //     [ {   base_currency: "EOS",
-        //           instrument_id: "EOS-OKB",
-        //                min_size: "0.01",
-        //              product_id: "EOS-OKB",
-        //          quote_currency: "OKB",
-        //          size_increment: "0.000001",
-        //               tick_size: "0.0001"        },
-        //
-        //       ..., // the spot endpoint also returns ETT instruments
-        //
-        //       {   base_currency: "OK06ETT",
-        //          base_increment: "0.00000001",
-        //           base_min_size: "0.01",
-        //           instrument_id: "OK06ETT-USDT",
-        //                min_size: "0.01",
-        //              product_id: "OK06ETT-USDT",
-        //          quote_currency: "USDT",
-        //         quote_increment: "0.0001",
-        //          size_increment: "0.00000001",
-        //               tick_size: "0.0001"        } ]
+        //     {
+        //         base_currency: "EOS",
+        //         instrument_id: "EOS-OKB",
+        //         min_size: "0.01",
+        //         quote_currency: "OKB",
+        //         size_increment: "0.000001",
+        //         tick_size: "0.0001"
+        //     }
         //
         // futures markets
         //
-        //     [ {    instrument_id: "BTG-USD-190329",
-        //         underlying_index: "BTG",
-        //           quote_currency: "USD",
-        //                tick_size: "0.01",
-        //             contract_val: "10",
-        //                  listing: "2018-12-14",
-        //                 delivery: "2019-03-29",
-        //          trade_increment: "1"               }  ]
+        //     {
+        //         instrument_id: "XRP-USD-200320",
+        //         underlying_index: "XRP",
+        //         quote_currency: "USD",
+        //         tick_size: "0.0001",
+        //         contract_val: "10",
+        //         listing: "2020-03-06",
+        //         delivery: "2020-03-20",
+        //         trade_increment: "1",
+        //         alias: "this_week",
+        //         underlying: "XRP-USD",
+        //         base_currency: "XRP",
+        //         settlement_currency: "XRP",
+        //         is_inverse: "true",
+        //         contract_val_currency: "USD",
+        //     }
         //
         // swap markets
         //
-        //     [ {    instrument_id: "BTC-USD-SWAP",
-        //         underlying_index: "BTC",
-        //           quote_currency: "USD",
-        //                     coin: "BTC",
-        //             contract_val: "100",
-        //                  listing: "2018-10-23T20:11:00.443Z",
-        //                 delivery: "2018-10-24T20:11:00.443Z",
-        //           size_increment: "4",
-        //                tick_size: "4"                         }  ]
+        //     {
+        //         instrument_id: "BSV-USD-SWAP",
+        //         underlying_index: "BSV",
+        //         quote_currency: "USD",
+        //         coin: "BSV",
+        //         contract_val: "10",
+        //         listing: "2018-12-21T07:53:47.000Z",
+        //         delivery: "2020-03-14T08:00:00.000Z",
+        //         size_increment: "1",
+        //         tick_size: "0.01",
+        //         base_currency: "BSV",
+        //         underlying: "BSV-USD",
+        //         settlement_currency: "BSV",
+        //         is_inverse: "true",
+        //         contract_val_currency: "USD"
+        //     }
+        //
+        // options markets
+        //
+        //     {
+        //         instrument_id: 'BTC-USD-200327-4000-C',
+        //         underlying: 'BTC-USD',
+        //         settlement_currency: 'BTC',
+        //         contract_val: '0.1000',
+        //         option_type: 'C',
+        //         strike: '4000',
+        //         tick_size: '0.0005',
+        //         lot_size: '1.0000',
+        //         listing: '2019-12-25T08:30:36.302Z',
+        //         delivery: '2020-03-27T08:00:00.000Z',
+        //         state: '2',
+        //         trading_start_time: '2019-12-25T08:30:36.302Z',
+        //         timestamp: '2020-03-13T08:05:09.456Z',
+        //     }
         //
         const id = this.safeString (market, 'instrument_id');
         let marketType = 'spot';
         let spot = true;
         let future = false;
         let swap = false;
+        let option = false;
         let baseId = this.safeString (market, 'base_currency');
+        let quoteId = this.safeString (market, 'quote_currency');
         const contractVal = this.safeFloat (market, 'contract_val');
         if (contractVal !== undefined) {
-            marketType = 'swap';
-            spot = false;
-            swap = true;
-            baseId = this.safeString (market, 'coin');
-            const futuresAlias = this.safeString (market, 'alias');
-            if (futuresAlias !== undefined) {
-                swap = false;
-                future = true;
-                marketType = 'futures';
-                baseId = this.safeString (market, 'underlying_index');
+            if ('option_type' in market) {
+                marketType = 'option';
+                spot = false;
+                option = true;
+                const underlying = this.safeString (market, 'underlying');
+                const parts = underlying.split ('-');
+                baseId = this.safeString (parts, 0);
+                quoteId = this.safeString (parts, 1);
+            } else {
+                marketType = 'swap';
+                spot = false;
+                swap = true;
+                const futuresAlias = this.safeString (market, 'alias');
+                if (futuresAlias !== undefined) {
+                    swap = false;
+                    future = true;
+                    marketType = 'futures';
+                    baseId = this.safeString (market, 'underlying_index');
+                }
             }
         }
-        const quoteId = this.safeString (market, 'quote_currency');
         const base = this.safeCurrencyCode (baseId);
         const quote = this.safeCurrencyCode (quoteId);
         const symbol = spot ? (base + '/' + quote) : id;
-        let amountPrecision = this.safeString (market, 'size_increment');
-        if (amountPrecision !== undefined) {
-            amountPrecision = this.precisionFromString (amountPrecision);
-        }
-        let pricePrecision = this.safeString (market, 'tick_size');
-        if (pricePrecision !== undefined) {
-            pricePrecision = this.precisionFromString (pricePrecision);
-        }
+        const lotSize = this.safeFloat2 (market, 'lot_size', 'trade_increment');
         const precision = {
-            'amount': amountPrecision,
-            'price': pricePrecision,
+            'amount': this.safeFloat (market, 'size_increment', lotSize),
+            'price': this.safeFloat (market, 'tick_size'),
         };
         const minAmount = this.safeFloat2 (market, 'min_size', 'base_min_size');
         let minPrice = this.safeFloat (market, 'tick_size');
@@ -74360,6 +76177,7 @@ module.exports = class okex3 extends Exchange {
             'spot': spot,
             'futures': future,
             'swap': swap,
+            'option': option,
             'active': active,
             'precision': precision,
             'limits': {
@@ -74380,46 +76198,100 @@ module.exports = class okex3 extends Exchange {
     }
 
     async fetchMarketsByType (type, params = {}) {
-        const method = type + 'GetInstruments';
-        const response = await this[method] (params);
-        //
-        // spot markets
-        //
-        //     [ {   base_currency: "EOS",
-        //          base_increment: "0.000001",
-        //           base_min_size: "0.01",
-        //           instrument_id: "EOS-OKB",
-        //                min_size: "0.01",
-        //              product_id: "EOS-OKB",
-        //          quote_currency: "OKB",
-        //         quote_increment: "0.0001",
-        //          size_increment: "0.000001",
-        //               tick_size: "0.0001"    }      ]
-        //
-        // futures markets
-        //
-        //     [ {    instrument_id: "BTG-USD-190329",
-        //         underlying_index: "BTG",
-        //           quote_currency: "USD",
-        //                tick_size: "0.01",
-        //             contract_val: "10",
-        //                  listing: "2018-12-14",
-        //                 delivery: "2019-03-29",
-        //          trade_increment: "1"               }  ]
-        //
-        // swap markets
-        //
-        //     [ {    instrument_id: "BTC-USD-SWAP",
-        //         underlying_index: "BTC",
-        //           quote_currency: "USD",
-        //                     coin: "BTC",
-        //             contract_val: "100",
-        //                  listing: "2018-10-23T20:11:00.443Z",
-        //                 delivery: "2018-10-24T20:11:00.443Z",
-        //           size_increment: "4",
-        //                tick_size: "4"                         }  ]
-        //
-        return this.parseMarkets (response);
+        if (type === 'option') {
+            const underlying = await this.optionGetUnderlying (params);
+            let result = [];
+            for (let i = 0; i < underlying.length; i++) {
+                const response = await this.optionGetInstrumentsUnderlying ({
+                    'underlying': underlying[i],
+                });
+                //
+                // options markets
+                //
+                //     [
+                //         {
+                //             instrument_id: 'BTC-USD-200327-4000-C',
+                //             underlying: 'BTC-USD',
+                //             settlement_currency: 'BTC',
+                //             contract_val: '0.1000',
+                //             option_type: 'C',
+                //             strike: '4000',
+                //             tick_size: '0.0005',
+                //             lot_size: '1.0000',
+                //             listing: '2019-12-25T08:30:36.302Z',
+                //             delivery: '2020-03-27T08:00:00.000Z',
+                //             state: '2',
+                //             trading_start_time: '2019-12-25T08:30:36.302Z',
+                //             timestamp: '2020-03-13T08:05:09.456Z',
+                //         },
+                //     ]
+                //
+                result = this.arrayConcat (result, response);
+            }
+            return this.parseMarkets (result);
+        } else if ((type === 'spot') || (type === 'futures') || (type === 'swap')) {
+            const method = type + 'GetInstruments';
+            const response = await this[method] (params);
+            //
+            // spot markets
+            //
+            //     [
+            //         {
+            //             base_currency: "EOS",
+            //             instrument_id: "EOS-OKB",
+            //             min_size: "0.01",
+            //             quote_currency: "OKB",
+            //             size_increment: "0.000001",
+            //             tick_size: "0.0001"
+            //         }
+            //     ]
+            //
+            // futures markets
+            //
+            //     [
+            //         {
+            //             instrument_id: "XRP-USD-200320",
+            //             underlying_index: "XRP",
+            //             quote_currency: "USD",
+            //             tick_size: "0.0001",
+            //             contract_val: "10",
+            //             listing: "2020-03-06",
+            //             delivery: "2020-03-20",
+            //             trade_increment: "1",
+            //             alias: "this_week",
+            //             underlying: "XRP-USD",
+            //             base_currency: "XRP",
+            //             settlement_currency: "XRP",
+            //             is_inverse: "true",
+            //             contract_val_currency: "USD",
+            //         }
+            //     ]
+            //
+            // swap markets
+            //
+            //     [
+            //         {
+            //             instrument_id: "BSV-USD-SWAP",
+            //             underlying_index: "BSV",
+            //             quote_currency: "USD",
+            //             coin: "BSV",
+            //             contract_val: "10",
+            //             listing: "2018-12-21T07:53:47.000Z",
+            //             delivery: "2020-03-14T08:00:00.000Z",
+            //             size_increment: "1",
+            //             tick_size: "0.01",
+            //             base_currency: "BSV",
+            //             underlying: "BSV-USD",
+            //             settlement_currency: "BSV",
+            //             is_inverse: "true",
+            //             contract_val_currency: "USD"
+            //         }
+            //     ]
+            //
+            return this.parseMarkets (response);
+        } else {
+            throw new NotSupported (this.id + ' fetchMarketsByType does not support market type ' + type);
+        }
     }
 
     async fetchCurrencies (params = {}) {
@@ -74524,6 +76396,7 @@ module.exports = class okex3 extends Exchange {
         const marketId = this.safeString (ticker, 'instrument_id');
         if (marketId in this.markets_by_id) {
             market = this.markets_by_id[marketId];
+            symbol = market['symbol'];
         } else if (marketId !== undefined) {
             const parts = marketId.split ('-');
             const numParts = parts.length;
@@ -74536,7 +76409,7 @@ module.exports = class okex3 extends Exchange {
                 symbol = marketId;
             }
         }
-        if (market !== undefined) {
+        if ((symbol === undefined) && (market !== undefined)) {
             symbol = market['symbol'];
         }
         const last = this.safeFloat (ticker, 'last');
@@ -74548,9 +76421,9 @@ module.exports = class okex3 extends Exchange {
             'high': this.safeFloat (ticker, 'high_24h'),
             'low': this.safeFloat (ticker, 'low_24h'),
             'bid': this.safeFloat (ticker, 'best_bid'),
-            'bidVolume': undefined,
+            'bidVolume': this.safeFloat (ticker, 'best_bid_size'),
             'ask': this.safeFloat (ticker, 'best_ask'),
-            'askVolume': undefined,
+            'askVolume': this.safeFloat (ticker, 'best_ask_size'),
             'vwap': undefined,
             'open': open,
             'close': last,
@@ -74671,8 +76544,30 @@ module.exports = class okex3 extends Exchange {
         //         }
         //
         let symbol = undefined;
-        if (market !== undefined) {
+        const marketId = this.safeString (trade, 'instrument_id');
+        let base = undefined;
+        let quote = undefined;
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
             symbol = market['symbol'];
+            base = market['base'];
+            quote = market['quote'];
+        } else if (marketId !== undefined) {
+            const parts = marketId.split ('-');
+            const numParts = parts.length;
+            if (numParts === 2) {
+                const [ baseId, quoteId ] = parts;
+                base = this.safeCurrencyCode (baseId);
+                quote = this.safeCurrencyCode (quoteId);
+                symbol = base + '/' + quote;
+            } else {
+                symbol = marketId;
+            }
+        }
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+            base = market['base'];
+            quote = market['quote'];
         }
         const timestamp = this.parse8601 (this.safeString2 (trade, 'timestamp', 'created_at'));
         const price = this.safeFloat (trade, 'price');
@@ -74694,10 +76589,7 @@ module.exports = class okex3 extends Exchange {
         const feeCost = this.safeFloat (trade, 'fee');
         let fee = undefined;
         if (feeCost !== undefined) {
-            let feeCurrency = undefined;
-            if (market !== undefined) {
-                feeCurrency = (side === 'buy') ? market['base'] : market['quote'];
-            }
+            const feeCurrency = (side === 'buy') ? base : quote;
             fee = {
                 // fee is either a positive number (invitation rebate)
                 // or a negative number (transaction fee deduction)
@@ -75096,12 +76988,12 @@ module.exports = class okex3 extends Exchange {
     }
 
     async fetchBalance (params = {}) {
-        await this.loadMarkets ();
         const defaultType = this.safeString2 (this.options, 'fetchBalance', 'defaultType');
         const type = this.safeString (params, 'type', defaultType);
         if (type === undefined) {
             throw new ArgumentsRequired (this.id + " fetchBalance requires a type parameter (one of 'account', 'spot', 'margin', 'futures', 'swap')");
         }
+        await this.loadMarkets ();
         const suffix = (type === 'account') ? 'Wallet' : 'Accounts';
         const method = type + 'Get' + suffix;
         const query = this.omit (params, 'type');
@@ -75231,6 +77123,10 @@ module.exports = class okex3 extends Exchange {
         //         ]
         //     }
         //
+        return this.parseBalanceByType (type, response);
+    }
+
+    parseBalanceByType (type, response) {
         if ((type === 'account') || (type === 'spot')) {
             return this.parseAccountBalance (response);
         } else if (type === 'margin') {
@@ -75285,10 +77181,13 @@ module.exports = class okex3 extends Exchange {
                                 notional = amount * price;
                             }
                         } else if (notional === undefined) {
-                            throw new InvalidOrder (this.id + " createOrder() requires the price argument with market buy orders to calculate total order cost (amount to spend), where cost = amount * price. Supply a price argument to createOrder() call if you want the cost to be calculated for you from price and amount, or, alternatively, add .options['createMarketBuyOrderRequiresPrice'] = false and supply the total cost value in the 'notional' extra parameter (the exchange-specific behaviour)");
+                            throw new InvalidOrder (this.id + " createOrder() requires the price argument with market buy orders to calculate total order cost (amount to spend), where cost = amount * price. Supply a price argument to createOrder() call if you want the cost to be calculated for you from price and amount, or, alternatively, add .options['createMarketBuyOrderRequiresPrice'] = false and supply the total cost value in the 'amount' argument or in the 'notional' extra parameter (the exchange-specific behaviour)");
                         }
+                    } else {
+                        notional = (notional === undefined) ? amount : notional;
                     }
-                    request['notional'] = this.costToPrecision (symbol, notional);
+                    const precision = market['precision']['price'];
+                    request['notional'] = this.decimalToPrecision (notional, TRUNCATE, precision, this.precisionMode);
                 } else {
                     request['size'] = this.amountToPrecision (symbol, amount);
                 }
@@ -75305,26 +77204,7 @@ module.exports = class okex3 extends Exchange {
         //         "result":true
         //     }
         //
-        const timestamp = this.milliseconds ();
-        const id = this.safeString (response, 'order_id');
-        return {
-            'info': response,
-            'id': id,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'lastTradeTimestamp': undefined,
-            'status': undefined,
-            'symbol': symbol,
-            'type': type,
-            'side': side,
-            'price': price,
-            'amount': amount,
-            'filled': undefined,
-            'remaining': undefined,
-            'cost': undefined,
-            'trades': undefined,
-            'fee': undefined,
-        };
+        return this.parseOrder (response, market);
     }
 
     async cancelOrder (id, symbol = undefined, params = {}) {
@@ -75531,9 +77411,11 @@ module.exports = class okex3 extends Exchange {
                 'currency': feeCurrency,
             };
         }
+        const clientOrderId = this.safeString (order, 'client_oid');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -75548,6 +77430,7 @@ module.exports = class okex3 extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
@@ -75761,9 +77644,11 @@ module.exports = class okex3 extends Exchange {
     }
 
     parseDepositAddresses (addresses) {
-        const result = [];
+        const result = {};
         for (let i = 0; i < addresses.length; i++) {
-            result.push (this.parseDepositAddress (addresses[i]));
+            const address = this.parseDepositAddress (addresses[i]);
+            const code = address['currency'];
+            result[code] = address;
         }
         return result;
     }
@@ -75825,7 +77710,7 @@ module.exports = class okex3 extends Exchange {
         }
         const fee = this.safeString (params, 'fee');
         if (fee === undefined) {
-            throw new ExchangeError (this.id + " withdraw() requires a `fee` string parameter, network transaction fee must be ≥ 0. Withdrawals to OKCoin or OKEx are fee-free, please set '0'. Withdrawing to external digital asset address requires network transaction fee.");
+            throw new ArgumentsRequired (this.id + " withdraw() requires a `fee` string parameter, network transaction fee must be ≥ 0. Withdrawals to OKCoin or OKEx are fee-free, please set '0'. Withdrawing to external digital asset address requires network transaction fee.");
         }
         const request = {
             'currency': currency['id'],
@@ -76023,25 +77908,162 @@ module.exports = class okex3 extends Exchange {
         };
     }
 
-    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
+    parseMyTrade (pair, market = undefined) {
+        // check that trading symbols match in both entries
+        const first = pair[0];
+        const second = pair[1];
+        const firstMarketId = this.safeString (first, 'instrument_id');
+        const secondMarketId = this.safeString (second, 'instrument_id');
+        if (firstMarketId !== secondMarketId) {
+            throw new NotSupported (this.id + ' parseMyTrade() received unrecognized response format, differing instrument_ids in one fill, the exchange API might have changed, paste your verbose output: https://github.com/ccxt/ccxt/wiki/FAQ#what-is-required-to-get-help');
+        }
+        const marketId = firstMarketId;
+        // determine the base and quote
+        let quoteId = undefined;
+        let symbol = undefined;
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
+            quoteId = market['quoteId'];
+            symbol = market['symbol'];
+        } else {
+            const parts = marketId.split ('-');
+            quoteId = this.safeString (parts, 1);
+            symbol = marketId;
+        }
+        const id = this.safeString (first, 'trade_id');
+        const price = this.safeFloat (first, 'price');
+        // determine buy/sell side and amounts
+        // get the side from either the first trade or the second trade
+        let feeCost = this.safeFloat (first, 'fee');
+        const index = (feeCost !== 0) ? 0 : 1;
+        const userTrade = this.safeValue (pair, index);
+        const otherTrade = this.safeValue (pair, 1 - index);
+        const receivedCurrencyId = this.safeString (userTrade, 'currency');
+        let side = undefined;
+        let amount = undefined;
+        let cost = undefined;
+        if (receivedCurrencyId === quoteId) {
+            side = 'sell';
+            amount = this.safeFloat (otherTrade, 'size');
+            cost = this.safeFloat (userTrade, 'size');
+        } else {
+            side = 'buy';
+            amount = this.safeFloat (userTrade, 'size');
+            cost = this.safeFloat (otherTrade, 'size');
+        }
+        feeCost = (feeCost !== 0) ? feeCost : this.safeFloat (second, 'fee');
+        const trade = this.safeValue (pair, index);
+        //
+        // simplified structures to show the underlying semantics
+        //
+        //     // market/limit sell
+        //
+        //     {
+        //         "currency":"USDT",
+        //         "fee":"-0.04647925", // ←--- fee in received quote currency
+        //         "price":"129.13", // ←------ price
+        //         "size":"30.98616393", // ←-- cost
+        //     },
+        //     {
+        //         "currency":"ETH",
+        //         "fee":"0",
+        //         "price":"129.13",
+        //         "size":"0.23996099", // ←--- amount
+        //     },
+        //
+        //     // market/limit buy
+        //
+        //     {
+        //         "currency":"ETH",
+        //         "fee":"-0.00036049", // ←--- fee in received base currency
+        //         "price":"129.16", // ←------ price
+        //         "size":"0.240322", // ←----- amount
+        //     },
+        //     {
+        //         "currency":"USDT",
+        //         "fee":"0",
+        //         "price":"129.16",
+        //         "size":"31.03998952", // ←-- cost
+        //     }
+        //
+        const timestamp = this.parse8601 (this.safeString2 (trade, 'timestamp', 'created_at'));
+        let takerOrMaker = this.safeString2 (trade, 'exec_type', 'liquidity');
+        if (takerOrMaker === 'M') {
+            takerOrMaker = 'maker';
+        } else if (takerOrMaker === 'T') {
+            takerOrMaker = 'taker';
+        }
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            const feeCurrencyId = this.safeString (userTrade, 'currency');
+            const feeCurrencyCode = this.safeCurrencyCode (feeCurrencyId);
+            fee = {
+                // fee is either a positive number (invitation rebate)
+                // or a negative number (transaction fee deduction)
+                // therefore we need to invert the fee
+                // more about it https://github.com/ccxt/ccxt/issues/5909
+                'cost': -feeCost,
+                'currency': feeCurrencyCode,
+            };
+        }
+        const orderId = this.safeString (trade, 'order_id');
+        return {
+            'info': pair,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'symbol': symbol,
+            'id': id,
+            'order': orderId,
+            'type': undefined,
+            'takerOrMaker': takerOrMaker,
+            'side': side,
+            'price': price,
+            'amount': amount,
+            'cost': cost,
+            'fee': fee,
+        };
+    }
+
+    parseMyTrades (trades, market = undefined, since = undefined, limit = undefined, params = {}) {
+        const grouped = this.groupBy (trades, 'trade_id');
+        const tradeIds = Object.keys (grouped);
+        const result = [];
+        for (let i = 0; i < tradeIds.length; i++) {
+            const tradeId = tradeIds[i];
+            const pair = grouped[tradeId];
+            // make sure it has exactly 2 trades, no more, no less
+            const numTradesInPair = pair.length;
+            if (numTradesInPair === 2) {
+                const trade = this.parseMyTrade (pair);
+                result.push (trade);
+            }
+        }
+        let symbol = undefined;
+        if (market !== undefined) {
+            symbol = market['symbol'];
+        }
+        return this.filterBySymbolSinceLimit (result, symbol, since, limit);
+    }
+
+    async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
         // okex actually returns ledger entries instead of fills here, so each fill in the order
         // is represented by two trades with opposite buy/sell sides, not one :\
         // this aspect renders the 'fills' endpoint unusable for fetchOrderTrades
         // until either OKEX fixes the API or we workaround this on our side somehow
         if (symbol === undefined) {
-            throw new ArgumentsRequired (this.id + ' fetchOrderTrades requires a symbol argument');
+            throw new ArgumentsRequired (this.id + ' fetchMyTrades requires a symbol argument');
         }
         await this.loadMarkets ();
         const market = this.market (symbol);
-        if ((limit === undefined) || (limit > 100)) {
+        if ((limit !== undefined) && (limit > 100)) {
             limit = 100;
         }
         const request = {
             'instrument_id': market['id'],
-            'order_id': id,
-            // from: '1', // return the page after the specified page number
-            // to: '1', // return the page before the specified page number
-            'limit': limit, // optional, number of results per request, default = maximum = 100
+            // 'order_id': id, // string
+            // 'after': '1', // return the page after the specified page number
+            // 'before': '1', // return the page before the specified page number
+            // 'limit': limit, // optional, number of results per request, default = maximum = 100
         };
         const defaultType = this.safeString2 (this.options, 'fetchMyTrades', 'defaultType');
         const type = this.safeString (params, 'type', defaultType);
@@ -76049,43 +78071,87 @@ module.exports = class okex3 extends Exchange {
         const method = type + 'GetFills';
         const response = await this[method] (this.extend (request, query));
         //
-        // spot trades, margin trades
-        //
         //     [
+        //         // sell
         //         {
-        //             "created_at":"2019-09-20T07:15:24.000Z",
+        //             "created_at":"2020-03-29T11:55:25.000Z",
+        //             "currency":"USDT",
+        //             "exec_type":"T",
+        //             "fee":"-0.04647925",
+        //             "instrument_id":"ETH-USDT",
+        //             "ledger_id":"10562924353",
+        //             "liquidity":"T",
+        //             "order_id":"4636470489136128",
+        //             "price":"129.13",
+        //             "product_id":"ETH-USDT",
+        //             "side":"buy",
+        //             "size":"30.98616393",
+        //             "timestamp":"2020-03-29T11:55:25.000Z",
+        //             "trade_id":"18551601"
+        //         },
+        //         {
+        //             "created_at":"2020-03-29T11:55:25.000Z",
+        //             "currency":"ETH",
         //             "exec_type":"T",
         //             "fee":"0",
         //             "instrument_id":"ETH-USDT",
-        //             "ledger_id":"7173486113",
+        //             "ledger_id":"10562924352",
         //             "liquidity":"T",
-        //             "order_id":"3553868136523776",
-        //             "price":"217.59",
+        //             "order_id":"4636470489136128",
+        //             "price":"129.13",
         //             "product_id":"ETH-USDT",
         //             "side":"sell",
-        //             "size":"0.04619899",
-        //             "timestamp":"2019-09-20T07:15:24.000Z"
-        //         }
-        //     ]
-        //
-        // futures trades, swap trades
-        //
-        //     [
+        //             "size":"0.23996099",
+        //             "timestamp":"2020-03-29T11:55:25.000Z",
+        //             "trade_id":"18551601"
+        //         },
+        //         // buy
         //         {
-        //             "trade_id":"197429674631450625",
-        //             "instrument_id":"EOS-USD-SWAP",
-        //             "order_id":"6a-7-54d663a28-0",
-        //             "price":"3.633",
-        //             "order_qty":"1.0000",
-        //             "fee":"-0.000551",
-        //             "created_at":"2019-03-21T04:41:58.0Z", // missing in swap trades
-        //             "timestamp":"2019-03-25T05:56:31.287Z", // missing in futures trades
-        //             "exec_type":"M", // whether the order is taker or maker
-        //             "side":"short", // "buy" in futures trades
+        //             "created_at":"2020-03-29T11:55:16.000Z",
+        //             "currency":"ETH",
+        //             "exec_type":"T",
+        //             "fee":"-0.00036049",
+        //             "instrument_id":"ETH-USDT",
+        //             "ledger_id":"10562922669",
+        //             "liquidity":"T",
+        //             "order_id": "4636469894136832",
+        //             "price":"129.16",
+        //             "product_id":"ETH-USDT",
+        //             "side":"buy",
+        //             "size":"0.240322",
+        //             "timestamp":"2020-03-29T11:55:16.000Z",
+        //             "trade_id":"18551600"
+        //         },
+        //         {
+        //             "created_at":"2020-03-29T11:55:16.000Z",
+        //             "currency":"USDT",
+        //             "exec_type":"T",
+        //             "fee":"0",
+        //             "instrument_id":"ETH-USDT",
+        //             "ledger_id":"10562922668",
+        //             "liquidity":"T",
+        //             "order_id":"4636469894136832",
+        //             "price":"129.16",
+        //             "product_id":"ETH-USDT",
+        //             "side":"sell",
+        //             "size":"31.03998952",
+        //             "timestamp":"2020-03-29T11:55:16.000Z",
+        //             "trade_id":"18551600"
         //         }
         //     ]
         //
-        return this.parseTrades (response, market, since, limit);
+        return this.parseMyTrades (response, market, since, limit, params);
+    }
+
+    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        const request = {
+            // 'instrument_id': market['id'],
+            'order_id': id,
+            // 'after': '1', // return the page after the specified page number
+            // 'before': '1', // return the page before the specified page number
+            // 'limit': limit, // optional, number of results per request, default = maximum = 100
+        };
+        return await this.fetchMyTrades (symbol, since, limit, this.extend (request, params));
     }
 
     async fetchLedger (code = undefined, since = undefined, limit = undefined, params = {}) {
@@ -76413,7 +78479,7 @@ module.exports = class okex3 extends Exchange {
         let request = '/api/' + api + '/' + this.version + '/';
         request += isArray ? path : this.implodeParams (path, params);
         const query = isArray ? params : this.omit (params, this.extractParams (path));
-        let url = this.urls['api'] + request;
+        let url = this.implodeParams (this.urls['api']['rest'], { 'hostname': this.hostname }) + request;
         const type = this.getPathAuthenticationType (path);
         if (type === 'public') {
             if (Object.keys (query).length) {
@@ -76451,6 +78517,12 @@ module.exports = class okex3 extends Exchange {
     }
 
     getPathAuthenticationType (path) {
+        // https://github.com/ccxt/ccxt/issues/6651
+        // a special case to handle the optionGetUnderlying interefering with
+        // other endpoints containing this keyword
+        if (path === 'underlying') {
+            return 'public';
+        }
         const auth = this.safeValue (this.options, 'auth', {});
         const key = this.findBroadlyMatchedKey (auth, path);
         return this.safeString (auth, key, 'private');
@@ -76459,7 +78531,8 @@ module.exports = class okex3 extends Exchange {
     handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
         const feedback = this.id + ' ' + body;
         if (code === 503) {
-            throw new ExchangeError (feedback);
+            // {"message":"name resolution failed"}
+            throw new ExchangeNotAvailable (feedback);
         }
         if (!response) {
             return; // fallback to default error handler
@@ -76469,15 +78542,17 @@ module.exports = class okex3 extends Exchange {
         if (message !== undefined) {
             this.throwExactlyMatchedException (this.exceptions['exact'], message, feedback);
             this.throwBroadlyMatchedException (this.exceptions['broad'], message, feedback);
-        }
-        this.throwExactlyMatchedException (this.exceptions['exact'], errorCode, feedback);
-        if (message !== undefined) {
-            throw new ExchangeError (feedback); // unknown message
+            this.throwExactlyMatchedException (this.exceptions['exact'], errorCode, feedback);
+            const nonEmptyMessage = (message !== '');
+            const nonZeroErrorCode = (errorCode !== undefined) && (errorCode !== '0');
+            if (nonZeroErrorCode || nonEmptyMessage) {
+                throw new ExchangeError (feedback); // unknown message
+            }
         }
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],119:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],116:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -76521,12 +78596,12 @@ module.exports = class paymium extends Exchange {
                 },
                 'private': {
                     'get': [
-                        'merchant/get_payment/{UUID}',
+                        'merchant/get_payment/{uuid}',
                         'user',
                         'user/addresses',
                         'user/addresses/{btc_address}',
                         'user/orders',
-                        'user/orders/{UUID}',
+                        'user/orders/{uuid}',
                         'user/price_alerts',
                     ],
                     'post': [
@@ -76537,7 +78612,7 @@ module.exports = class paymium extends Exchange {
                         'merchant/create_payment',
                     ],
                     'delete': [
-                        'user/orders/{UUID}/cancel',
+                        'user/orders/{uuid}/cancel',
                         'user/price_alerts/{id}',
                     ],
                 },
@@ -76700,18 +78775,24 @@ module.exports = class paymium extends Exchange {
             this.checkRequiredCredentials ();
             const nonce = this.nonce ().toString ();
             let auth = nonce + url;
+            headers = {
+                'Api-Key': this.apiKey,
+                'Api-Nonce': nonce,
+            };
             if (method === 'POST') {
                 if (Object.keys (query).length) {
                     body = this.json (query);
                     auth += body;
+                    headers['Content-Type'] = 'application/json';
+                }
+            } else {
+                if (Object.keys (query).length) {
+                    const queryString = this.urlencode (query);
+                    auth += queryString;
+                    url += '?' + queryString;
                 }
             }
-            headers = {
-                'Api-Key': this.apiKey,
-                'Api-Signature': this.hmac (this.encode (auth), this.encode (this.secret)),
-                'Api-Nonce': nonce,
-                'Content-Type': 'application/json',
-            };
+            headers['Api-Signature'] = this.hmac (this.encode (auth), this.encode (this.secret));
         }
         return { 'url': url, 'method': method, 'body': body, 'headers': headers };
     }
@@ -76725,7 +78806,7 @@ module.exports = class paymium extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],120:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],117:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -77477,6 +79558,7 @@ module.exports = class poloniex extends Exchange {
         //             },
         //         ],
         //         'fee': '0.00000000',
+        //         'clientOrderId': '12345',
         //         'currencyPair': 'BTC_MANA',
         //         // ---------------------------------------------------------
         //         // the following fields are injected by createOrder
@@ -77563,9 +79645,11 @@ module.exports = class poloniex extends Exchange {
                 'currency': feeCurrencyCode,
             };
         }
+        const clientOrderId = this.safeString (order, 'clientOrderId');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -78176,7 +80260,7 @@ module.exports = class poloniex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],121:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],118:[function(require,module,exports){
 'use strict';
 
 const Exchange = require ('./base/Exchange');
@@ -78721,6 +80805,7 @@ module.exports = class rightbtc extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -78735,6 +80820,7 @@ module.exports = class rightbtc extends Exchange {
             'status': status,
             'fee': fee,
             'trades': trades,
+            'average': undefined,
         };
     }
 
@@ -78939,7 +81025,7 @@ module.exports = class rightbtc extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9,"./base/functions/number":15}],122:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10,"./base/functions/number":16}],119:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -79028,6 +81114,8 @@ module.exports = class southxchange extends Exchange {
                 'quoteId': quoteId,
                 'active': undefined,
                 'info': market,
+                'precision': this.precision,
+                'limits': this.limits,
             });
         }
         return result;
@@ -79188,6 +81276,7 @@ module.exports = class southxchange extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -79201,6 +81290,8 @@ module.exports = class southxchange extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
         return result;
     }
@@ -79304,7 +81395,7 @@ module.exports = class southxchange extends Exchange {
     }
 };
 
-},{"./base/Exchange":7}],123:[function(require,module,exports){
+},{"./base/Exchange":8}],120:[function(require,module,exports){
 (function (module, exports) {
     'use strict';
 
@@ -82832,7 +84923,7 @@ module.exports = class southxchange extends Exchange {
     };
 })(typeof module === 'undefined' || module, this);
 
-},{"buffer":182}],124:[function(require,module,exports){
+},{"buffer":179}],121:[function(require,module,exports){
 ;(function (root, factory) {
 	if (typeof exports === "object") {
 		// CommonJS
@@ -88821,7 +90912,7 @@ module.exports = class southxchange extends Exchange {
 	return CryptoJS;
 
 }));
-},{}],125:[function(require,module,exports){
+},{}],122:[function(require,module,exports){
 'use strict';
 
 var elliptic = exports;
@@ -88844,7 +90935,7 @@ elliptic.curves = require('./elliptic/curves');
 // Protocols
 elliptic.ec = require('./elliptic/ec');
 
-},{"./elliptic/curve":128,"./elliptic/curves":131,"./elliptic/ec":132,"./elliptic/utils":136}],126:[function(require,module,exports){
+},{"./elliptic/curve":125,"./elliptic/curves":128,"./elliptic/ec":129,"./elliptic/utils":133}],123:[function(require,module,exports){
 'use strict';
 
 var BN = require('../../../../BN/bn');
@@ -89221,7 +91312,7 @@ BasePoint.prototype.dblp = function dblp(k) {
   return r;
 };
 
-},{"../../../../BN/bn":123,"../../elliptic":125}],127:[function(require,module,exports){
+},{"../../../../BN/bn":120,"../../elliptic":122}],124:[function(require,module,exports){
 'use strict';
 
 var curve = require('../curve');
@@ -89656,7 +91747,7 @@ Point.prototype.eqXToP = function eqXToP(x) {
 Point.prototype.toP = Point.prototype.normalize;
 Point.prototype.mixedAdd = Point.prototype.add;
 
-},{"../../../../BN/bn":123,"../../elliptic":125,"../curve":128}],128:[function(require,module,exports){
+},{"../../../../BN/bn":120,"../../elliptic":122,"../curve":125}],125:[function(require,module,exports){
 'use strict';
 
 var curve = exports;
@@ -89666,7 +91757,7 @@ curve.short = require('./short');
 curve.mont = require('./mont');
 curve.edwards = require('./edwards');
 
-},{"./base":126,"./edwards":127,"./mont":129,"./short":130}],129:[function(require,module,exports){
+},{"./base":123,"./edwards":124,"./mont":126,"./short":127}],126:[function(require,module,exports){
 'use strict';
 
 var curve = require('../curve');
@@ -89848,7 +91939,7 @@ Point.prototype.getX = function getX() {
   return this.x.fromRed();
 };
 
-},{"../../../../BN/bn":123,"../../elliptic":125,"../curve":128}],130:[function(require,module,exports){
+},{"../../../../BN/bn":120,"../../elliptic":122,"../curve":125}],127:[function(require,module,exports){
 'use strict';
 
 var curve = require('../curve');
@@ -90788,7 +92879,7 @@ JPoint.prototype.isInfinity = function isInfinity() {
   return this.z.cmpn(0) === 0;
 };
 
-},{"../../../../BN/bn":123,"../../elliptic":125,"../curve":128}],131:[function(require,module,exports){
+},{"../../../../BN/bn":120,"../../elliptic":122,"../curve":125}],128:[function(require,module,exports){
 'use strict';
 
 var curves = exports;
@@ -90994,7 +93085,7 @@ defineCurve('secp256k1', {
   ]
 });
 
-},{"../elliptic":125,"./precomputed/secp256k1":135}],132:[function(require,module,exports){
+},{"../elliptic":122,"./precomputed/secp256k1":132}],129:[function(require,module,exports){
 'use strict';
 
 var BN = require('../../../../BN/bn');
@@ -91236,7 +93327,7 @@ EC.prototype.getKeyRecoveryParam = function(e, signature, Q, enc) {
   throw new Error('Unable to find valid recovery factor');
 };
 
-},{"../../../../BN/bn":123,"../../elliptic":125,"../../hmac-drbg/hmac-drbg":137,"./key":133,"./signature":134}],133:[function(require,module,exports){
+},{"../../../../BN/bn":120,"../../elliptic":122,"../../hmac-drbg/hmac-drbg":134,"./key":130,"./signature":131}],130:[function(require,module,exports){
 'use strict';
 
 var BN = require('../../../../BN/bn');
@@ -91357,7 +93448,7 @@ KeyPair.prototype.inspect = function inspect() {
          ' pub: ' + (this.pub && this.pub.inspect()) + ' >';
 };
 
-},{"../../../../BN/bn":123,"../../elliptic":125}],134:[function(require,module,exports){
+},{"../../../../BN/bn":120,"../../elliptic":122}],131:[function(require,module,exports){
 'use strict';
 
 var BN = require('../../../../BN/bn');
@@ -91383,7 +93474,7 @@ function Signature(options, enc) {
 }
 module.exports = Signature;
 
-},{"../../../../BN/bn":123,"../../elliptic":125}],135:[function(require,module,exports){
+},{"../../../../BN/bn":120,"../../elliptic":122}],132:[function(require,module,exports){
 module.exports = {
   doubles: {
     step: 4,
@@ -92165,7 +94256,7 @@ module.exports = {
   }
 };
 
-},{}],136:[function(require,module,exports){
+},{}],133:[function(require,module,exports){
 'use strict';
 
 var utils = exports;
@@ -92323,7 +94414,7 @@ function wordArrayToBuffer(wordArray) {
 
 utils.wordArrayToBuffer = wordArrayToBuffer;
 
-},{"../../../BN/bn":123}],137:[function(require,module,exports){
+},{"../../../BN/bn":120}],134:[function(require,module,exports){
 'use strict';
 
 var CryptoJS = require('../../../crypto-js/crypto-js');
@@ -92439,7 +94530,7 @@ HmacDRBG.prototype.generate = function generate(len, enc, add, addEnc) {
   return utils.wordArrayToBuffer(res);
 };
 
-},{"../../../../base/functions/encode":12,"../../../crypto-js/crypto-js":124,"../elliptic/utils":136}],138:[function(require,module,exports){
+},{"../../../../base/functions/encode":13,"../../../crypto-js/crypto-js":121,"../elliptic/utils":133}],135:[function(require,module,exports){
 'use strict';
 
 var fetch = require('../node-fetch/index');
@@ -92480,7 +94571,7 @@ module.exports = function (context) {
   };
 };
 
-},{"../node-fetch/index":139}],139:[function(require,module,exports){
+},{"../node-fetch/index":136}],136:[function(require,module,exports){
 (function (global,Buffer){
 'use strict';
 
@@ -94048,7 +96139,7 @@ exports.Response = Response;
 exports.FetchError = FetchError;
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
-},{"buffer":182,"http":224,"https":187,"stream":223,"url":230,"zlib":181}],140:[function(require,module,exports){
+},{"buffer":179,"http":221,"https":184,"stream":220,"url":227,"zlib":178}],137:[function(require,module,exports){
 (function (Buffer){
 /*!
  * RSA library for Node.js
@@ -94275,7 +96366,7 @@ module.exports = (function () {
 })();
 
 }).call(this,require("buffer").Buffer)
-},{"./formats/formats.js":147,"./libs/rsa.js":151,"./schemes/schemes.js":153,"./utils":154,"buffer":182}],141:[function(require,module,exports){
+},{"./formats/formats.js":144,"./libs/rsa.js":148,"./schemes/schemes.js":150,"./utils":151,"buffer":179}],138:[function(require,module,exports){
 // Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
 
 
@@ -94290,7 +96381,7 @@ module.exports = {
 
 };
 
-},{}],142:[function(require,module,exports){
+},{}],139:[function(require,module,exports){
 // Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
 
 var errors = require('./errors');
@@ -94313,7 +96404,7 @@ for (var e in errors) {
     module.exports[e] = errors[e];
 }
 
-},{"./errors":141,"./reader":143,"./types":144}],143:[function(require,module,exports){
+},{"./errors":138,"./reader":140,"./types":141}],140:[function(require,module,exports){
 (function (Buffer){
 // Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
 
@@ -94579,7 +96670,7 @@ Reader.prototype._readTag = function (tag) {
 module.exports = Reader;
 
 }).call(this,require("buffer").Buffer)
-},{"./errors":141,"./types":144,"assert":177,"buffer":182}],144:[function(require,module,exports){
+},{"./errors":138,"./types":141,"assert":174,"buffer":179}],141:[function(require,module,exports){
 // Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
 
 
@@ -94617,7 +96708,7 @@ module.exports = {
   Context: 128
 };
 
-},{}],145:[function(require,module,exports){
+},{}],142:[function(require,module,exports){
 // Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
 
 // If you have no idea what ASN.1 or BER is, see this:
@@ -94636,7 +96727,7 @@ module.exports = {
   BerReader: Ber.Reader,
 };
 
-},{"./ber/index":142}],146:[function(require,module,exports){
+},{"./ber/index":139}],143:[function(require,module,exports){
 var _ = require('../utils')._;
 var utils = require('../utils');
 
@@ -94709,7 +96800,7 @@ module.exports = {
     }
 };
 
-},{"../utils":154}],147:[function(require,module,exports){
+},{"../utils":151}],144:[function(require,module,exports){
 var _ = require('../utils')._;
 
 module.exports = {
@@ -94742,7 +96833,7 @@ module.exports = {
     },
 };
 
-},{"../utils":154,"./components":146,"./pkcs1":148,"./pkcs8":149}],148:[function(require,module,exports){
+},{"../utils":151,"./components":143,"./pkcs1":145,"./pkcs8":146}],145:[function(require,module,exports){
 (function (Buffer){
 var ber = require('../asn1/index').Ber;
 var _ = require('../utils')._;
@@ -94894,7 +96985,7 @@ module.exports = {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"../asn1/index":145,"../utils":154,"buffer":182}],149:[function(require,module,exports){
+},{"../asn1/index":142,"../utils":151,"buffer":179}],146:[function(require,module,exports){
 (function (Buffer){
 var ber = require('../asn1/index').Ber;
 var _ = require('../utils')._;
@@ -95085,7 +97176,7 @@ module.exports = {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"../asn1/index":145,"../utils":154,"buffer":182}],150:[function(require,module,exports){
+},{"../asn1/index":142,"../utils":151,"buffer":179}],147:[function(require,module,exports){
 (function (Buffer){
 /*
  * Basic JavaScript BN library - subset useful for RSA encryption.
@@ -96341,7 +98432,7 @@ BigInteger.prototype.square = bnSquare;
 module.exports = BigInteger;
 
 }).call(this,require("buffer").Buffer)
-},{"../utils":154,"buffer":182}],151:[function(require,module,exports){
+},{"../utils":151,"buffer":179}],148:[function(require,module,exports){
 /*
  * RSA Encryption / Decryption with PKCS1 v2 Padding.
  *
@@ -96490,7 +98581,7 @@ module.exports.Key = (function () {
 })();
 
 
-},{"../schemes/schemes.js":153,"../utils":154,"../utils.js":154,"./jsbn.js":150}],152:[function(require,module,exports){
+},{"../schemes/schemes.js":150,"../utils":151,"../utils.js":151,"./jsbn.js":147}],149:[function(require,module,exports){
 (function (Buffer){
 /**
  * PKCS1 padding and signature scheme
@@ -96670,7 +98761,7 @@ function wordArrayToBuffer(wordArray) {
 }
 
 }).call(this,require("buffer").Buffer)
-},{"../../crypto-js/crypto-js":124,"../libs/jsbn":150,"buffer":182,"constants":184}],153:[function(require,module,exports){
+},{"../../crypto-js/crypto-js":121,"../libs/jsbn":147,"buffer":179,"constants":181}],150:[function(require,module,exports){
 module.exports = {
     pkcs1: require('./pkcs1'),
 
@@ -96693,7 +98784,7 @@ module.exports = {
     }
 };
 
-},{"./pkcs1":152}],154:[function(require,module,exports){
+},{"./pkcs1":149}],151:[function(require,module,exports){
 /*
  * Utils functions
  *
@@ -96793,7 +98884,7 @@ module.exports.trimSurroundingText = function (data, opening, closing) {
     return data.substring(trimStartIndex, trimEndIndex);
 }
 
-},{}],155:[function(require,module,exports){
+},{}],152:[function(require,module,exports){
 'use strict';
 
 var replace = String.prototype.replace;
@@ -96813,7 +98904,7 @@ module.exports = {
     RFC3986: 'RFC3986'
 };
 
-},{}],156:[function(require,module,exports){
+},{}],153:[function(require,module,exports){
 'use strict';
 
 var stringify = require('./stringify');
@@ -96826,7 +98917,7 @@ module.exports = {
     stringify: stringify
 };
 
-},{"./formats":155,"./parse":157,"./stringify":158}],157:[function(require,module,exports){
+},{"./formats":152,"./parse":154,"./stringify":155}],154:[function(require,module,exports){
 'use strict';
 
 var utils = require('./utils');
@@ -97070,7 +99161,7 @@ module.exports = function (str, opts) {
     return utils.compact(obj);
 };
 
-},{"./utils":159}],158:[function(require,module,exports){
+},{"./utils":156}],155:[function(require,module,exports){
 'use strict';
 
 var utils = require('./utils');
@@ -97341,7 +99432,7 @@ module.exports = function (object, opts) {
     return joined.length > 0 ? prefix + joined : '';
 };
 
-},{"./formats":155,"./utils":159}],159:[function(require,module,exports){
+},{"./formats":152,"./utils":156}],156:[function(require,module,exports){
 'use strict';
 
 var has = Object.prototype.hasOwnProperty;
@@ -97573,7 +99664,7 @@ module.exports = {
     merge: merge
 };
 
-},{}],160:[function(require,module,exports){
+},{}],157:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -98494,6 +100585,7 @@ module.exports = class stex extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -99373,7 +101465,7 @@ module.exports = class stex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],161:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],158:[function(require,module,exports){
 'use strict';
 
 // ----------------------------------------------------------------------------
@@ -99598,6 +101690,7 @@ module.exports = class stronghold extends Exchange {
                 'precision': precision,
                 'info': entry,
                 'limits': limits,
+                'active': undefined,
             };
         }
         return result;
@@ -99655,6 +101748,7 @@ module.exports = class stronghold extends Exchange {
                 'active': undefined,
                 'name': undefined,
                 'limits': limits,
+                'fee': undefined,
             };
         }
         return result;
@@ -99952,6 +102046,7 @@ module.exports = class stronghold extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'info': order,
             'symbol': symbol,
             'datetime': datetime,
@@ -99967,6 +102062,7 @@ module.exports = class stronghold extends Exchange {
             'status': undefined,
             'type': undefined,
             'average': undefined,
+            'fee': undefined,
         };
     }
 
@@ -100162,7 +102258,7 @@ module.exports = class stronghold extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],162:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],159:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -100196,7 +102292,7 @@ module.exports = class surbitcoin extends foxbit {
     }
 };
 
-},{"./foxbit.js":86}],163:[function(require,module,exports){
+},{"./foxbit.js":85}],160:[function(require,module,exports){
 'use strict';
 
 const Exchange = require ('./base/Exchange');
@@ -100379,6 +102475,9 @@ module.exports = class theocean extends Exchange {
     }
 
     async fetchOHLCV (symbol, timeframe = '5m', since = undefined, limit = undefined, params = {}) {
+        if (since === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchOHLCV requires a since argument');
+        }
         await this.loadMarkets ();
         const market = this.market (symbol);
         const request = {
@@ -100386,9 +102485,6 @@ module.exports = class theocean extends Exchange {
             'quoteTokenAddress': market['quoteId'],
             'interval': this.timeframes[timeframe],
         };
-        if (since === undefined) {
-            throw new ExchangeError (this.id + ' fetchOHLCV requires a since argument');
-        }
         since = parseInt (since);
         request['startTime'] = since;
         const response = await this.publicGetCandlesticks (this.extend (request, params));
@@ -100905,6 +103001,7 @@ module.exports = class theocean extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -100919,6 +103016,7 @@ module.exports = class theocean extends Exchange {
             'status': status,
             'fee': fee,
             'trades': trades,
+            'average': undefined,
         };
         return result;
     }
@@ -101109,7 +103207,7 @@ module.exports = class theocean extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],164:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],161:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -102068,6 +104166,7 @@ module.exports = class therock extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -102339,13 +104438,13 @@ module.exports = class therock extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],165:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],162:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError, InsufficientFunds, OrderNotFound } = require ('./base/errors');
+const { ExchangeError, InsufficientFunds, OrderNotFound, ArgumentsRequired } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -102499,6 +104598,9 @@ module.exports = class tidebit extends Exchange {
                 'baseId': baseId,
                 'quoteId': quoteId,
                 'info': market,
+                'active': undefined,
+                'precision': this.precision,
+                'limits': this.limits,
             });
         }
         return result;
@@ -102684,6 +104786,41 @@ module.exports = class tidebit extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "id": 7,                              // 唯一的 Order ID
+        //         "side": "sell",                       // Buy/Sell 代表买单/卖单
+        //         "price": "3100.0",                    // 出价
+        //         "avg_price": "3101.2",                // 平均成交价
+        //         "state": "wait",                      // 订单的当前状态 [wait,done,cancel]
+        //                                               //   wait   表明订单正在市场上挂单
+        //                                               //          是一个active order
+        //                                               //          此时订单可能部分成交或者尚未成交
+        //                                               //   done   代表订单已经完全成交
+        //                                               //   cancel 代表订单已经被撤销
+        //         "market": "btccny",                   // 订单参与的交易市场
+        //         "created_at": "2014-04-18T02:02:33Z", // 下单时间 ISO8601格式
+        //         "volume": "100.0",                    // 购买/卖出数量
+        //         "remaining_volume": "89.8",           // 还未成交的数量 remaining_volume 总是小于等于 volume
+        //                                               //   在订单完全成交时变成 0
+        //         "executed_volume": "10.2",            // 已成交的数量
+        //                                               //   volume = remaining_volume + executed_volume
+        //         "trades_count": 1,                    // 订单的成交数 整数值
+        //                                               //   未成交的订单为 0 有一笔成交的订单为 1
+        //                                               //   通过该字段可以判断订单是否处于部分成交状态
+        //         "trades": [                           // 订单的详细成交记录 参见Trade
+        //                                               //   注意: 只有某些返回详细订单数据的 API 才会包含 Trade 数据
+        //             {
+        //                 "id": 2,
+        //                 "price": "3100.0",
+        //                 "volume": "10.2",
+        //                 "market": "btccny",
+        //                 "created_at": "2014-04-18T02:04:49Z",
+        //                 "side": "sell"
+        //             }
+        //         ]
+        //     }
+        //
         let symbol = undefined;
         if (market !== undefined) {
             symbol = market['symbol'];
@@ -102708,6 +104845,7 @@ module.exports = class tidebit extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -102723,6 +104861,7 @@ module.exports = class tidebit extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -102762,7 +104901,7 @@ module.exports = class tidebit extends Exchange {
         const currency = this.currency (code);
         const id = this.safeString (params, 'id');
         if (id === undefined) {
-            throw new ExchangeError (this.id + ' withdraw() requires an extra `id` param (withdraw account id according to withdraws/bind_account_list endpoint');
+            throw new ArgumentsRequired (this.id + ' withdraw() requires an extra `id` param (withdraw account id according to withdraws/bind_account_list endpoint');
         }
         const request = {
             'id': id,
@@ -102832,7 +104971,7 @@ module.exports = class tidebit extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],166:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],163:[function(require,module,exports){
 'use strict';
 
 const Exchange = require ('./base/Exchange');
@@ -103363,9 +105502,13 @@ module.exports = class tidex extends Exchange {
             'filled': filled,
             'fee': undefined,
             // 'trades': this.parseTrades (order['trades'], market),
+            'info': response,
+            'clientOrderId': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
         this.orders[id] = order;
-        return this.extend ({ 'info': response }, order);
+        return order;
     }
 
     async cancelOrder (id, symbol = undefined, params = {}) {
@@ -103441,6 +105584,9 @@ module.exports = class tidex extends Exchange {
             'filled': filled,
             'status': status,
             'fee': fee,
+            'clientOrderId': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
@@ -103688,7 +105834,7 @@ module.exports = class tidex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],167:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],164:[function(require,module,exports){
 'use strict';
 
 const Exchange = require ('./base/Exchange');
@@ -104866,9 +107012,11 @@ module.exports = class timex extends Exchange {
                 lastTradeTimestamp = trades[numTrades - 1]['timestamp'];
             }
         }
+        const clientOrderId = this.safeString (order, 'clientOrderId');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -104925,7 +107073,7 @@ module.exports = class timex extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],168:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],165:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -104952,7 +107100,7 @@ module.exports = class topq extends bw {
     }
 };
 
-},{"./bw.js":57}],169:[function(require,module,exports){
+},{"./bw.js":56}],166:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -104971,6 +107119,7 @@ module.exports = class upbit extends Exchange {
             'version': 'v1',
             'rateLimit': 1000,
             'certified': true,
+            'pro': true,
             // new metainfo interface
             'has': {
                 'CORS': true,
@@ -105005,7 +107154,10 @@ module.exports = class upbit extends Exchange {
             'hostname': 'api.upbit.com',
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/49245610-eeaabe00-f423-11e8-9cba-4b0aed794799.jpg',
-                'api': 'https://{hostname}',
+                'api': {
+                    'public': 'https://{hostname}',
+                    'private': 'https://{hostname}',
+                },
                 'www': 'https://upbit.com',
                 'doc': 'https://docs.upbit.com/docs/%EC%9A%94%EC%B2%AD-%EC%88%98-%EC%A0%9C%ED%95%9C',
                 'fees': 'https://upbit.com/service_center/guide',
@@ -105494,7 +107646,7 @@ module.exports = class upbit extends Exchange {
         //                     timestamp:  1542883543813  }
         //
         const timestamp = this.safeInteger (ticker, 'trade_timestamp');
-        const symbol = this.getSymbolFromMarketId (this.safeString (ticker, 'market'), market);
+        const symbol = this.getSymbolFromMarketId (this.safeString2 (ticker, 'market', 'code'), market);
         const previous = this.safeFloat (ticker, 'prev_closing_price');
         const last = this.safeFloat (ticker, 'trade_price');
         const change = this.safeFloat (ticker, 'signed_change_price');
@@ -105635,8 +107787,8 @@ module.exports = class upbit extends Exchange {
                 }
             }
         }
-        const marketId = this.safeString (trade, 'market');
-        market = this.safeValue (this.markets_by_id, marketId);
+        const marketId = this.safeString2 (trade, 'market', 'code');
+        market = this.safeValue (this.markets_by_id, marketId, market);
         let fee = undefined;
         let feeCurrency = undefined;
         let symbol = undefined;
@@ -106152,6 +108304,7 @@ module.exports = class upbit extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -106274,9 +108427,11 @@ module.exports = class upbit extends Exchange {
     }
 
     parseDepositAddresses (addresses) {
-        const result = [];
+        const result = {};
         for (let i = 0; i < addresses.length; i++) {
-            result.push (this.parseDepositAddress (addresses[i]));
+            const address = this.parseDepositAddress (addresses[i]);
+            const code = address['currency'];
+            result[code] = address;
         }
         return result;
     }
@@ -106414,7 +108569,7 @@ module.exports = class upbit extends Exchange {
     }
 
     sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = this.implodeParams (this.urls['api'], {
+        let url = this.implodeParams (this.urls['api'][api], {
             'hostname': this.hostname,
         });
         url += '/' + this.version + '/' + this.implodeParams (path, params);
@@ -106478,7 +108633,7 @@ module.exports = class upbit extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],170:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],167:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -106564,6 +108719,9 @@ module.exports = class vaultoro extends Exchange {
             'baseId': baseId,
             'quoteId': quoteId,
             'info': market,
+            'active': undefined,
+            'precision': this.precision,
+            'limits': this.limits,
         });
         return result;
     }
@@ -106680,7 +108838,7 @@ module.exports = class vaultoro extends Exchange {
     }
 };
 
-},{"./base/Exchange":7}],171:[function(require,module,exports){
+},{"./base/Exchange":8}],168:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -106714,7 +108872,7 @@ module.exports = class vbtc extends foxbit {
     }
 };
 
-},{"./foxbit.js":86}],172:[function(require,module,exports){
+},{"./foxbit.js":85}],169:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -107302,7 +109460,7 @@ module.exports = class whitebit extends Exchange {
     }
 
     async fetchStatus (params = {}) {
-        const response = await this.webGetV1Healthcheck ();
+        const response = await this.webGetV1Healthcheck (params);
         const status = this.safeInteger (response, 'status');
         let formattedStatus = 'ok';
         if (status === 503) {
@@ -107346,7 +109504,7 @@ module.exports = class whitebit extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],173:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],170:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -107478,6 +109636,9 @@ module.exports = class xbtce extends Exchange {
                 'baseId': baseId,
                 'quoteId': quoteId,
                 'info': market,
+                'active': undefined,
+                'precision': this.precision,
+                'limits': this.limits,
             });
         }
         return result;
@@ -107708,7 +109869,7 @@ module.exports = class xbtce extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],174:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],171:[function(require,module,exports){
 'use strict';
 
 // ---------------------------------------------------------------------------
@@ -108253,9 +110414,13 @@ module.exports = class yobit extends Exchange {
             'filled': filled,
             'fee': undefined,
             // 'trades': this.parseTrades (order['trades'], market),
+            'info': response,
+            'clientOrderId': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
         this.orders[id] = order;
-        return this.extend ({ 'info': response }, order);
+        return order;
     }
 
     async cancelOrder (id, symbol = undefined, params = {}) {
@@ -108318,6 +110483,7 @@ module.exports = class yobit extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -108331,6 +110497,8 @@ module.exports = class yobit extends Exchange {
             'filled': filled,
             'status': status,
             'fee': fee,
+            'average': undefined,
+            'trades': undefined,
         };
         return result;
     }
@@ -108636,7 +110804,7 @@ module.exports = class yobit extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],175:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],172:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -108963,6 +111131,16 @@ module.exports = class zaif extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "currency_pair": "btc_jpy",
+        //         "action": "ask",
+        //         "amount": 0.03,
+        //         "price": 56000,
+        //         "timestamp": 1402021125,
+        //         "comment" : "demo"
+        //     }
+        //
         let side = this.safeString (order, 'action');
         side = (side === 'bid') ? 'buy' : 'sell';
         const timestamp = this.safeTimestamp (order, 'timestamp');
@@ -108987,6 +111165,7 @@ module.exports = class zaif extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -109001,6 +111180,8 @@ module.exports = class zaif extends Exchange {
             'remaining': undefined,
             'trades': undefined,
             'fee': undefined,
+            'info': undefined,
+            'average': undefined,
         };
     }
 
@@ -109135,7 +111316,7 @@ module.exports = class zaif extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],176:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],173:[function(require,module,exports){
 'use strict';
 
 //  ---------------------------------------------------------------------------
@@ -109591,7 +111772,7 @@ module.exports = class zb extends Exchange {
 
     async fetchOrders (symbol = undefined, since = undefined, limit = 50, params = {}) {
         if (symbol === undefined) {
-            throw new ExchangeError (this.id + 'fetchOrders requires a symbol parameter');
+            throw new ArgumentsRequired (this.id + 'fetchOrders requires a symbol argument');
         }
         await this.loadMarkets ();
         const market = this.market (symbol);
@@ -109619,7 +111800,7 @@ module.exports = class zb extends Exchange {
 
     async fetchOpenOrders (symbol = undefined, since = undefined, limit = 10, params = {}) {
         if (symbol === undefined) {
-            throw new ExchangeError (this.id + 'fetchOpenOrders requires a symbol parameter');
+            throw new ArgumentsRequired (this.id + 'fetchOpenOrders requires a symbol argument');
         }
         await this.loadMarkets ();
         const market = this.market (symbol);
@@ -109697,6 +111878,7 @@ module.exports = class zb extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -109711,6 +111893,7 @@ module.exports = class zb extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': undefined,
+            'trades': undefined,
         };
     }
 
@@ -109784,7 +111967,7 @@ module.exports = class zb extends Exchange {
     }
 };
 
-},{"./base/Exchange":7,"./base/errors":9}],177:[function(require,module,exports){
+},{"./base/Exchange":8,"./base/errors":10}],174:[function(require,module,exports){
 (function (global){
 'use strict';
 
@@ -110278,7 +112461,7 @@ var objectKeys = Object.keys || function (obj) {
 };
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"util/":235}],178:[function(require,module,exports){
+},{"util/":232}],175:[function(require,module,exports){
 'use strict'
 
 exports.byteLength = byteLength
@@ -110394,9 +112577,9 @@ function fromByteArray (uint8) {
   return parts.join('')
 }
 
-},{}],179:[function(require,module,exports){
+},{}],176:[function(require,module,exports){
 
-},{}],180:[function(require,module,exports){
+},{}],177:[function(require,module,exports){
 (function (process,Buffer){
 'use strict';
 /* eslint camelcase: "off" */
@@ -110808,7 +112991,7 @@ Zlib.prototype._reset = function () {
 
 exports.Zlib = Zlib;
 }).call(this,require('_process'),require("buffer").Buffer)
-},{"_process":204,"assert":177,"buffer":182,"pako/lib/zlib/constants":194,"pako/lib/zlib/deflate.js":196,"pako/lib/zlib/inflate.js":198,"pako/lib/zlib/zstream":202}],181:[function(require,module,exports){
+},{"_process":201,"assert":174,"buffer":179,"pako/lib/zlib/constants":191,"pako/lib/zlib/deflate.js":193,"pako/lib/zlib/inflate.js":195,"pako/lib/zlib/zstream":199}],178:[function(require,module,exports){
 (function (process){
 'use strict';
 
@@ -111420,7 +113603,7 @@ util.inherits(DeflateRaw, Zlib);
 util.inherits(InflateRaw, Zlib);
 util.inherits(Unzip, Zlib);
 }).call(this,require('_process'))
-},{"./binding":180,"_process":204,"assert":177,"buffer":182,"stream":223,"util":235}],182:[function(require,module,exports){
+},{"./binding":177,"_process":201,"assert":174,"buffer":179,"stream":220,"util":232}],179:[function(require,module,exports){
 /*!
  * The buffer module from node.js, for the browser.
  *
@@ -113136,7 +115319,7 @@ function numberIsNaN (obj) {
   return obj !== obj // eslint-disable-line no-self-compare
 }
 
-},{"base64-js":178,"ieee754":188}],183:[function(require,module,exports){
+},{"base64-js":175,"ieee754":185}],180:[function(require,module,exports){
 module.exports = {
   "100": "Continue",
   "101": "Switching Protocols",
@@ -113202,7 +115385,7 @@ module.exports = {
   "511": "Network Authentication Required"
 }
 
-},{}],184:[function(require,module,exports){
+},{}],181:[function(require,module,exports){
 module.exports={
   "O_RDONLY": 0,
   "O_WRONLY": 1,
@@ -113413,7 +115596,7 @@ module.exports={
   "UV_UDP_REUSEADDR": 4
 }
 
-},{}],185:[function(require,module,exports){
+},{}],182:[function(require,module,exports){
 (function (Buffer){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -113524,7 +115707,7 @@ function objectToString(o) {
 }
 
 }).call(this,{"isBuffer":require("../../is-buffer/index.js")})
-},{"../../is-buffer/index.js":190}],186:[function(require,module,exports){
+},{"../../is-buffer/index.js":187}],183:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -113828,7 +116011,7 @@ function isUndefined(arg) {
   return arg === void 0;
 }
 
-},{}],187:[function(require,module,exports){
+},{}],184:[function(require,module,exports){
 var http = require('http')
 var url = require('url')
 
@@ -113861,7 +116044,7 @@ function validateParams (params) {
   return params
 }
 
-},{"http":224,"url":230}],188:[function(require,module,exports){
+},{"http":221,"url":227}],185:[function(require,module,exports){
 exports.read = function (buffer, offset, isLE, mLen, nBytes) {
   var e, m
   var eLen = nBytes * 8 - mLen - 1
@@ -113947,7 +116130,7 @@ exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
   buffer[offset + i - d] |= s * 128
 }
 
-},{}],189:[function(require,module,exports){
+},{}],186:[function(require,module,exports){
 if (typeof Object.create === 'function') {
   // implementation from standard node.js 'util' module
   module.exports = function inherits(ctor, superCtor) {
@@ -113972,7 +116155,7 @@ if (typeof Object.create === 'function') {
   }
 }
 
-},{}],190:[function(require,module,exports){
+},{}],187:[function(require,module,exports){
 /*!
  * Determine if an object is a Buffer
  *
@@ -113995,14 +116178,14 @@ function isSlowBuffer (obj) {
   return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
 }
 
-},{}],191:[function(require,module,exports){
+},{}],188:[function(require,module,exports){
 var toString = {}.toString;
 
 module.exports = Array.isArray || function (arr) {
   return toString.call(arr) == '[object Array]';
 };
 
-},{}],192:[function(require,module,exports){
+},{}],189:[function(require,module,exports){
 'use strict';
 
 
@@ -114109,7 +116292,7 @@ exports.setTyped = function (on) {
 
 exports.setTyped(TYPED_OK);
 
-},{}],193:[function(require,module,exports){
+},{}],190:[function(require,module,exports){
 'use strict';
 
 // Note: adler32 takes 12% for level 0 and 2% for level 6.
@@ -114162,7 +116345,7 @@ function adler32(adler, buf, len, pos) {
 
 module.exports = adler32;
 
-},{}],194:[function(require,module,exports){
+},{}],191:[function(require,module,exports){
 'use strict';
 
 // (C) 1995-2013 Jean-loup Gailly and Mark Adler
@@ -114232,7 +116415,7 @@ module.exports = {
   //Z_NULL:                 null // Use -1 or null inline, depending on var type
 };
 
-},{}],195:[function(require,module,exports){
+},{}],192:[function(require,module,exports){
 'use strict';
 
 // Note: we can't get significant speed boost here.
@@ -114293,7 +116476,7 @@ function crc32(crc, buf, len, pos) {
 
 module.exports = crc32;
 
-},{}],196:[function(require,module,exports){
+},{}],193:[function(require,module,exports){
 'use strict';
 
 // (C) 1995-2013 Jean-loup Gailly and Mark Adler
@@ -116169,7 +118352,7 @@ exports.deflatePrime = deflatePrime;
 exports.deflateTune = deflateTune;
 */
 
-},{"../utils/common":192,"./adler32":193,"./crc32":195,"./messages":200,"./trees":201}],197:[function(require,module,exports){
+},{"../utils/common":189,"./adler32":190,"./crc32":192,"./messages":197,"./trees":198}],194:[function(require,module,exports){
 'use strict';
 
 // (C) 1995-2013 Jean-loup Gailly and Mark Adler
@@ -116516,7 +118699,7 @@ module.exports = function inflate_fast(strm, start) {
   return;
 };
 
-},{}],198:[function(require,module,exports){
+},{}],195:[function(require,module,exports){
 'use strict';
 
 // (C) 1995-2013 Jean-loup Gailly and Mark Adler
@@ -118074,7 +120257,7 @@ exports.inflateSyncPoint = inflateSyncPoint;
 exports.inflateUndermine = inflateUndermine;
 */
 
-},{"../utils/common":192,"./adler32":193,"./crc32":195,"./inffast":197,"./inftrees":199}],199:[function(require,module,exports){
+},{"../utils/common":189,"./adler32":190,"./crc32":192,"./inffast":194,"./inftrees":196}],196:[function(require,module,exports){
 'use strict';
 
 // (C) 1995-2013 Jean-loup Gailly and Mark Adler
@@ -118419,7 +120602,7 @@ module.exports = function inflate_table(type, lens, lens_index, codes, table, ta
   return 0;
 };
 
-},{"../utils/common":192}],200:[function(require,module,exports){
+},{"../utils/common":189}],197:[function(require,module,exports){
 'use strict';
 
 // (C) 1995-2013 Jean-loup Gailly and Mark Adler
@@ -118453,7 +120636,7 @@ module.exports = {
   '-6':   'incompatible version' /* Z_VERSION_ERROR (-6) */
 };
 
-},{}],201:[function(require,module,exports){
+},{}],198:[function(require,module,exports){
 'use strict';
 
 // (C) 1995-2013 Jean-loup Gailly and Mark Adler
@@ -119675,7 +121858,7 @@ exports._tr_flush_block  = _tr_flush_block;
 exports._tr_tally = _tr_tally;
 exports._tr_align = _tr_align;
 
-},{"../utils/common":192}],202:[function(require,module,exports){
+},{"../utils/common":189}],199:[function(require,module,exports){
 'use strict';
 
 // (C) 1995-2013 Jean-loup Gailly and Mark Adler
@@ -119724,7 +121907,7 @@ function ZStream() {
 
 module.exports = ZStream;
 
-},{}],203:[function(require,module,exports){
+},{}],200:[function(require,module,exports){
 (function (process){
 'use strict';
 
@@ -119771,7 +121954,7 @@ function nextTick(fn, arg1, arg2, arg3) {
 }
 
 }).call(this,require('_process'))
-},{"_process":204}],204:[function(require,module,exports){
+},{"_process":201}],201:[function(require,module,exports){
 // shim for using process in browser
 var process = module.exports = {};
 
@@ -119957,7 +122140,7 @@ process.chdir = function (dir) {
 };
 process.umask = function() { return 0; };
 
-},{}],205:[function(require,module,exports){
+},{}],202:[function(require,module,exports){
 (function (global){
 /*! https://mths.be/punycode v1.4.1 by @mathias */
 ;(function(root) {
@@ -120494,7 +122677,7 @@ process.umask = function() { return 0; };
 }(this));
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],206:[function(require,module,exports){
+},{}],203:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -120580,7 +122763,7 @@ var isArray = Array.isArray || function (xs) {
   return Object.prototype.toString.call(xs) === '[object Array]';
 };
 
-},{}],207:[function(require,module,exports){
+},{}],204:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -120667,16 +122850,16 @@ var objectKeys = Object.keys || function (obj) {
   return res;
 };
 
-},{}],208:[function(require,module,exports){
+},{}],205:[function(require,module,exports){
 'use strict';
 
 exports.decode = exports.parse = require('./decode');
 exports.encode = exports.stringify = require('./encode');
 
-},{"./decode":206,"./encode":207}],209:[function(require,module,exports){
+},{"./decode":203,"./encode":204}],206:[function(require,module,exports){
 module.exports = require('./lib/_stream_duplex.js');
 
-},{"./lib/_stream_duplex.js":210}],210:[function(require,module,exports){
+},{"./lib/_stream_duplex.js":207}],207:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -120801,7 +122984,7 @@ function forEach(xs, f) {
     f(xs[i], i);
   }
 }
-},{"./_stream_readable":212,"./_stream_writable":214,"core-util-is":185,"inherits":189,"process-nextick-args":203}],211:[function(require,module,exports){
+},{"./_stream_readable":209,"./_stream_writable":211,"core-util-is":182,"inherits":186,"process-nextick-args":200}],208:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -120849,7 +123032,7 @@ function PassThrough(options) {
 PassThrough.prototype._transform = function (chunk, encoding, cb) {
   cb(null, chunk);
 };
-},{"./_stream_transform":213,"core-util-is":185,"inherits":189}],212:[function(require,module,exports){
+},{"./_stream_transform":210,"core-util-is":182,"inherits":186}],209:[function(require,module,exports){
 (function (process,global){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -121859,7 +124042,7 @@ function indexOf(xs, x) {
   return -1;
 }
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./_stream_duplex":210,"./internal/streams/BufferList":215,"./internal/streams/destroy":216,"./internal/streams/stream":217,"_process":204,"core-util-is":185,"events":186,"inherits":189,"isarray":191,"process-nextick-args":203,"safe-buffer":222,"string_decoder/":228,"util":179}],213:[function(require,module,exports){
+},{"./_stream_duplex":207,"./internal/streams/BufferList":212,"./internal/streams/destroy":213,"./internal/streams/stream":214,"_process":201,"core-util-is":182,"events":183,"inherits":186,"isarray":188,"process-nextick-args":200,"safe-buffer":219,"string_decoder/":225,"util":176}],210:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -122074,7 +124257,7 @@ function done(stream, er, data) {
 
   return stream.push(null);
 }
-},{"./_stream_duplex":210,"core-util-is":185,"inherits":189}],214:[function(require,module,exports){
+},{"./_stream_duplex":207,"core-util-is":182,"inherits":186}],211:[function(require,module,exports){
 (function (process,global){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -122741,7 +124924,7 @@ Writable.prototype._destroy = function (err, cb) {
   cb(err);
 };
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./_stream_duplex":210,"./internal/streams/destroy":216,"./internal/streams/stream":217,"_process":204,"core-util-is":185,"inherits":189,"process-nextick-args":203,"safe-buffer":222,"util-deprecate":232}],215:[function(require,module,exports){
+},{"./_stream_duplex":207,"./internal/streams/destroy":213,"./internal/streams/stream":214,"_process":201,"core-util-is":182,"inherits":186,"process-nextick-args":200,"safe-buffer":219,"util-deprecate":229}],212:[function(require,module,exports){
 'use strict';
 
 /*<replacement>*/
@@ -122816,7 +124999,7 @@ module.exports = function () {
 
   return BufferList;
 }();
-},{"safe-buffer":222}],216:[function(require,module,exports){
+},{"safe-buffer":219}],213:[function(require,module,exports){
 'use strict';
 
 /*<replacement>*/
@@ -122889,13 +125072,13 @@ module.exports = {
   destroy: destroy,
   undestroy: undestroy
 };
-},{"process-nextick-args":203}],217:[function(require,module,exports){
+},{"process-nextick-args":200}],214:[function(require,module,exports){
 module.exports = require('events').EventEmitter;
 
-},{"events":186}],218:[function(require,module,exports){
+},{"events":183}],215:[function(require,module,exports){
 module.exports = require('./readable').PassThrough
 
-},{"./readable":219}],219:[function(require,module,exports){
+},{"./readable":216}],216:[function(require,module,exports){
 exports = module.exports = require('./lib/_stream_readable.js');
 exports.Stream = exports;
 exports.Readable = exports;
@@ -122904,13 +125087,13 @@ exports.Duplex = require('./lib/_stream_duplex.js');
 exports.Transform = require('./lib/_stream_transform.js');
 exports.PassThrough = require('./lib/_stream_passthrough.js');
 
-},{"./lib/_stream_duplex.js":210,"./lib/_stream_passthrough.js":211,"./lib/_stream_readable.js":212,"./lib/_stream_transform.js":213,"./lib/_stream_writable.js":214}],220:[function(require,module,exports){
+},{"./lib/_stream_duplex.js":207,"./lib/_stream_passthrough.js":208,"./lib/_stream_readable.js":209,"./lib/_stream_transform.js":210,"./lib/_stream_writable.js":211}],217:[function(require,module,exports){
 module.exports = require('./readable').Transform
 
-},{"./readable":219}],221:[function(require,module,exports){
+},{"./readable":216}],218:[function(require,module,exports){
 module.exports = require('./lib/_stream_writable.js');
 
-},{"./lib/_stream_writable.js":214}],222:[function(require,module,exports){
+},{"./lib/_stream_writable.js":211}],219:[function(require,module,exports){
 /* eslint-disable node/no-deprecated-api */
 var buffer = require('buffer')
 var Buffer = buffer.Buffer
@@ -122974,7 +125157,7 @@ SafeBuffer.allocUnsafeSlow = function (size) {
   return buffer.SlowBuffer(size)
 }
 
-},{"buffer":182}],223:[function(require,module,exports){
+},{"buffer":179}],220:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -123103,7 +125286,7 @@ Stream.prototype.pipe = function(dest, options) {
   return dest;
 };
 
-},{"events":186,"inherits":189,"readable-stream/duplex.js":209,"readable-stream/passthrough.js":218,"readable-stream/readable.js":219,"readable-stream/transform.js":220,"readable-stream/writable.js":221}],224:[function(require,module,exports){
+},{"events":183,"inherits":186,"readable-stream/duplex.js":206,"readable-stream/passthrough.js":215,"readable-stream/readable.js":216,"readable-stream/transform.js":217,"readable-stream/writable.js":218}],221:[function(require,module,exports){
 (function (global){
 var ClientRequest = require('./lib/request')
 var extend = require('xtend')
@@ -123185,7 +125368,7 @@ http.METHODS = [
 	'UNSUBSCRIBE'
 ]
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./lib/request":226,"builtin-status-codes":183,"url":230,"xtend":236}],225:[function(require,module,exports){
+},{"./lib/request":223,"builtin-status-codes":180,"url":227,"xtend":233}],222:[function(require,module,exports){
 (function (global){
 exports.fetch = isFunction(global.fetch) && isFunction(global.ReadableStream)
 
@@ -123258,7 +125441,7 @@ function isFunction (value) {
 xhr = null // Help gc
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],226:[function(require,module,exports){
+},{}],223:[function(require,module,exports){
 (function (process,global,Buffer){
 var capability = require('./capability')
 var inherits = require('inherits')
@@ -123568,7 +125751,7 @@ var unsafeHeaders = [
 ]
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
-},{"./capability":225,"./response":227,"_process":204,"buffer":182,"inherits":189,"readable-stream":219,"to-arraybuffer":229}],227:[function(require,module,exports){
+},{"./capability":222,"./response":224,"_process":201,"buffer":179,"inherits":186,"readable-stream":216,"to-arraybuffer":226}],224:[function(require,module,exports){
 (function (process,global,Buffer){
 var capability = require('./capability')
 var inherits = require('inherits')
@@ -123754,7 +125937,7 @@ IncomingMessage.prototype._onXHRProgress = function () {
 }
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
-},{"./capability":225,"_process":204,"buffer":182,"inherits":189,"readable-stream":219}],228:[function(require,module,exports){
+},{"./capability":222,"_process":201,"buffer":179,"inherits":186,"readable-stream":216}],225:[function(require,module,exports){
 'use strict';
 
 var Buffer = require('safe-buffer').Buffer;
@@ -124027,7 +126210,7 @@ function simpleWrite(buf) {
 function simpleEnd(buf) {
   return buf && buf.length ? this.write(buf) : '';
 }
-},{"safe-buffer":222}],229:[function(require,module,exports){
+},{"safe-buffer":219}],226:[function(require,module,exports){
 var Buffer = require('buffer').Buffer
 
 module.exports = function (buf) {
@@ -124056,7 +126239,7 @@ module.exports = function (buf) {
 	}
 }
 
-},{"buffer":182}],230:[function(require,module,exports){
+},{"buffer":179}],227:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -124790,7 +126973,7 @@ Url.prototype.parseHost = function() {
   if (host) this.hostname = host;
 };
 
-},{"./util":231,"punycode":205,"querystring":208}],231:[function(require,module,exports){
+},{"./util":228,"punycode":202,"querystring":205}],228:[function(require,module,exports){
 'use strict';
 
 module.exports = {
@@ -124808,7 +126991,7 @@ module.exports = {
   }
 };
 
-},{}],232:[function(require,module,exports){
+},{}],229:[function(require,module,exports){
 (function (global){
 
 /**
@@ -124879,16 +127062,16 @@ function config (name) {
 }
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],233:[function(require,module,exports){
-arguments[4][189][0].apply(exports,arguments)
-},{"dup":189}],234:[function(require,module,exports){
+},{}],230:[function(require,module,exports){
+arguments[4][186][0].apply(exports,arguments)
+},{"dup":186}],231:[function(require,module,exports){
 module.exports = function isBuffer(arg) {
   return arg && typeof arg === 'object'
     && typeof arg.copy === 'function'
     && typeof arg.fill === 'function'
     && typeof arg.readUInt8 === 'function';
 }
-},{}],235:[function(require,module,exports){
+},{}],232:[function(require,module,exports){
 (function (process,global){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -125478,7 +127661,7 @@ function hasOwnProperty(obj, prop) {
 }
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./support/isBuffer":234,"_process":204,"inherits":233}],236:[function(require,module,exports){
+},{"./support/isBuffer":231,"_process":201,"inherits":230}],233:[function(require,module,exports){
 module.exports = extend
 
 var hasOwnProperty = Object.prototype.hasOwnProperty;
diff --git a/WebServer/node_modules/ccxt/js/_1btcxe.js b/BackendServers/node_modules/ccxt/js/_1btcxe.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/_1btcxe.js
rename to BackendServers/node_modules/ccxt/js/_1btcxe.js
diff --git a/WebServer/node_modules/ccxt/js/acx.js b/BackendServers/node_modules/ccxt/js/acx.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/acx.js
rename to BackendServers/node_modules/ccxt/js/acx.js
index 1d054c443..d1b31388a 100644
--- a/WebServer/node_modules/ccxt/js/acx.js
+++ b/BackendServers/node_modules/ccxt/js/acx.js
@@ -134,6 +134,8 @@ module.exports = class acx extends Exchange {
                 'quoteId': quoteId,
                 'precision': precision,
                 'info': market,
+                'active': undefined,
+                'limits': this.limits,
             });
         }
         return result;
@@ -325,6 +327,7 @@ module.exports = class acx extends Exchange {
         const id = this.safeString (order, 'id');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -339,6 +342,8 @@ module.exports = class acx extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': order,
+            'cost': undefined,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/adara.js b/BackendServers/node_modules/ccxt/js/adara.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/adara.js
rename to BackendServers/node_modules/ccxt/js/adara.js
index 397104cd2..d816df1c3 100644
--- a/WebServer/node_modules/ccxt/js/adara.js
+++ b/BackendServers/node_modules/ccxt/js/adara.js
@@ -970,6 +970,7 @@ module.exports = class adara extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
diff --git a/WebServer/node_modules/ccxt/js/anxpro.js b/BackendServers/node_modules/ccxt/js/anxpro.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/anxpro.js
rename to BackendServers/node_modules/ccxt/js/anxpro.js
index d27fb71aa..092e58ac4 100644
--- a/WebServer/node_modules/ccxt/js/anxpro.js
+++ b/BackendServers/node_modules/ccxt/js/anxpro.js
@@ -469,6 +469,7 @@ module.exports = class anxpro extends Exchange {
             'cost': cost,
             'fee': undefined,
             'info': trade,
+            'takerOrMaker': undefined,
         };
     }
 
@@ -974,6 +975,7 @@ module.exports = class anxpro extends Exchange {
         const cost = executedAverageRate * filled;
         return {
             'id': this.safeString (order, 'orderId'),
+            'clientOrderId': undefined,
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -989,6 +991,7 @@ module.exports = class anxpro extends Exchange {
             'fee': undefined,
             'trades': trades,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -1066,6 +1069,7 @@ module.exports = class anxpro extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -1080,6 +1084,7 @@ module.exports = class anxpro extends Exchange {
             'status': status,
             'fee': fee,
             'trades': trades,
+            'average': undefined,
         };
     }
 
diff --git a/BackendServers/node_modules/ccxt/js/aofex.js b/BackendServers/node_modules/ccxt/js/aofex.js
new file mode 100644
index 000000000..779d280c7
--- /dev/null
+++ b/BackendServers/node_modules/ccxt/js/aofex.js
@@ -0,0 +1,1125 @@
+'use strict';
+
+//  ---------------------------------------------------------------------------
+
+const Exchange = require ('./base/Exchange');
+const { ArgumentsRequired, ExchangeError, BadSymbol, InvalidOrder, PermissionDenied, InvalidAddress, AuthenticationError, InvalidNonce, BadRequest, InsufficientFunds, OrderNotFound } = require ('./base/errors');
+const { TRUNCATE } = require ('./base/functions/number');
+
+//  ---------------------------------------------------------------------------
+
+module.exports = class aofex extends Exchange {
+    describe () {
+        return this.deepExtend (super.describe (), {
+            'id': 'aofex',
+            'name': 'AOFEX',
+            'countries': [ 'GB' ],
+            'rateLimit': 1000,
+            'has': {
+                'fetchMarkets': true,
+                'fetchCurrencies': false,
+                'fetchOrderBook': true,
+                'fetchTrades': true,
+                'fetchTicker': true,
+                'fetchTickers': true,
+                'fetchOHLCV': true,
+                'fetchBalance': true,
+                'createOrder': true,
+                'cancelOrder': true,
+                'cancelAllOrders': true,
+                'fetchOpenOrders': true,
+                'fetchClosedOrders': true,
+                'fetchClosedOrder': true,
+                'fetchOrderTrades': true,
+                'fetchTradingFee': true,
+            },
+            'timeframes': {
+                '1m': '1min',
+                '5m': '5min',
+                '15m': '15min',
+                '30m': '30min',
+                '1h': '1hour',
+                '6h': '6hour',
+                '12h': '12hour',
+                '1d': '1day',
+                '1w': '1week',
+            },
+            'urls': {
+                'logo': 'https://user-images.githubusercontent.com/51840849/77670271-056d1080-6f97-11ea-9ac2-4268e9ed0c1f.jpg',
+                'api': {
+                    'public': 'https://openapi.aofex.com/openApi',
+                    'private': 'https://openapi.aofex.com/openApi',
+                },
+                'www': 'https://aofex.com',
+                'doc': 'https://aofex.zendesk.com/hc/en-us/sections/360005576574-API',
+                'fees': 'https://aofex.zendesk.com/hc/en-us/articles/360025814934-Fees-on-AOFEX',
+                'referral': 'https://aofex.com/#/register?key=9763840',
+            },
+            'api': {
+                'public': {
+                    'get': [
+                        'market/symbols',
+                        'market/trade',
+                        'market/depth',
+                        'market/kline',
+                        'market/precision',
+                        'market/24kline',
+                        'market/gears_depth',
+                        'market/detail',
+                    ],
+                },
+                'private': {
+                    'get': [
+                        'entrust/currentList',
+                        'entrust/historyList',
+                        'entrust/rate',
+                        'wallet/list',
+                        'entrust/detail',
+                    ],
+                    'post': [
+                        'entrust/add',
+                        'entrust/cancel',
+                    ],
+                },
+            },
+            'fees': {
+                'trading': {
+                    'maker': 0.0019,
+                    'taker': 0.002,
+                },
+            },
+            'exceptions': {
+                'exact': {
+                    '20001': ExchangeError, // request failure
+                    '20401': PermissionDenied, // no permission
+                    '20500': ExchangeError, // system error
+                    '20501': BadSymbol, // base symbol error
+                    '20502': ExchangeError, // base currency error
+                    '20503': ExchangeError, // base date error
+                    '20504': InsufficientFunds, // account frozen balance insufficient error
+                    '20505': BadRequest, // bad argument
+                    '20506': AuthenticationError, // api signature not valid
+                    '20507': ExchangeError, // gateway internal error
+                    '20508': InvalidAddress, // ad ethereum addresss
+                    '20509': InsufficientFunds, // order accountbalance error
+                    '20510': InvalidOrder, // order limitorder price error
+                    '20511': InvalidOrder, // order limitorder amount error
+                    '20512': InvalidOrder, // order orderprice precision error
+                    '20513': InvalidOrder, // order orderamount precision error
+                    '20514': InvalidOrder, // order marketorder amount error
+                    '20515': InvalidOrder, // order queryorder invalid
+                    '20516': InvalidOrder, // order orderstate error
+                    '20517': InvalidOrder, // order datelimit error
+                    '50518': InvalidOrder, // order update error
+                    '20519': InvalidNonce, // the nonce has been used
+                    '20520': InvalidNonce, // nonce expires, please verify server time
+                    '20521': BadRequest, // incomplete header parameters
+                    '20522': ExchangeError, // not getting the current user
+                    '20523': AuthenticationError, // please authenticate
+                    '20524': PermissionDenied, // btc account lockout
+                    '20525': AuthenticationError, // get API Key error
+                    '20526': PermissionDenied, // no query permission
+                    '20527': PermissionDenied, // no deal permission
+                    '20528': PermissionDenied, // no withdrawal permission
+                    '20529': AuthenticationError, // API Key expired
+                    '20530': PermissionDenied, // no permission
+                },
+                'broad': {
+                },
+            },
+            'options': {
+                'fetchBalance': {
+                    'show_all': '0', // '1' to show zero balances
+                },
+            },
+        });
+    }
+
+    async fetchMarkets (params = {}) {
+        let markets = await this.publicGetMarketSymbols (params);
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: 'success',
+        //         result: [
+        //             {
+        //                 id: 2,
+        //                 symbol: 'BTC-USDT',
+        //                 base_currency: 'BTC',
+        //                 quote_currency: 'USDT',
+        //                 min_size: 0.00008,
+        //                 max_size: 1300,
+        //                 min_price: 1000,
+        //                 max_price: 110000,
+        //                 maker_fee: 1,
+        //                 taker_fee: 1,
+        //                 isHot: null,
+        //                 isNew: null,
+        //                 crown: null
+        //             },
+        //         ]
+        //     }
+        //
+        let precisions = await this.publicGetMarketPrecision ();
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: 'success',
+        //         result: {
+        //             'MANA-USDT': {
+        //                 amount: '2',
+        //                 minQuantity: '32',
+        //                 maxQuantity: '46000000',
+        //                 price: '4',
+        //                 minPrice: '0.003',
+        //                 maxPrice: '0.35'
+        //             },
+        //         }
+        //     }
+        //
+        precisions = this.safeValue (precisions, 'result', {});
+        markets = this.safeValue (markets, 'result', []);
+        const result = [];
+        for (let i = 0; i < markets.length; i++) {
+            const market = markets[i];
+            const id = this.safeString (market, 'symbol');
+            const baseId = this.safeString (market, 'base_currency');
+            const quoteId = this.safeString (market, 'quote_currency');
+            const base = this.safeCurrencyCode (baseId);
+            const quote = this.safeCurrencyCode (quoteId);
+            const symbol = base + '/' + quote;
+            const numericId = this.safeInteger (market, 'id');
+            const precision = this.safeValue (precisions, id, {});
+            const makerFee = this.safeFloat (market, 'maker_fee');
+            const takerFee = this.safeFloat (market, 'taker_fee');
+            result.push ({
+                'id': id,
+                'numericId': numericId,
+                'symbol': symbol,
+                'baseId': baseId,
+                'quoteId': quoteId,
+                'base': base,
+                'quote': quote,
+                'active': undefined,
+                'maker': makerFee / 1000,
+                'taker': takerFee / 1000,
+                'precision': {
+                    'amount': this.safeInteger (precision, 'amount'),
+                    'price': this.safeInteger (precision, 'price'),
+                },
+                'limits': {
+                    'amount': {
+                        'min': this.safeFloat (market, 'min_size'),
+                        'max': this.safeFloat (market, 'max_size'),
+                    },
+                    'price': {
+                        'min': this.safeFloat (market, 'min_price'),
+                        'max': this.safeFloat (market, 'max_price'),
+                    },
+                    'cost': {
+                        'min': undefined,
+                        'max': undefined,
+                    },
+                },
+                'info': market,
+            });
+        }
+        return result;
+    }
+
+    parseOHLCV (ohlcv, market = undefined, timeframe = '5m', since = undefined, limit = undefined) {
+        //
+        //     {
+        //         id:  1584950100,
+        //         amount: "329.196",
+        //         count:  81,
+        //         open: "0.021155",
+        //         close: "0.021158",
+        //         low: "0.021144",
+        //         high: "0.021161",
+        //         vol: "6.963557767"
+        //     }
+        //
+        return [
+            this.safeTimestamp (ohlcv, 'id'),
+            this.safeFloat (ohlcv, 'open'),
+            this.safeFloat (ohlcv, 'high'),
+            this.safeFloat (ohlcv, 'low'),
+            this.safeFloat (ohlcv, 'close'),
+            this.safeFloat (ohlcv, 'amount'),
+        ];
+    }
+
+    async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        if (limit === undefined) {
+            limit = 150; // default 150, max 2000
+        }
+        const request = {
+            'symbol': market['id'],
+            'period': this.timeframes[timeframe],
+            'size': limit, // default 150, max 2000
+        };
+        const response = await this.publicGetMarketKline (this.extend (request, params));
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: "success",
+        //         result: {
+        //             ts:  1584950139003,
+        //             symbol: "ETH-BTC",
+        //             period: "1min",
+        //             data: [
+        //                 {
+        //                     id:  1584950100,
+        //                     amount: "329.196",
+        //                     count:  81,
+        //                     open: "0.021155",
+        //                     close: "0.021158",
+        //                     low: "0.021144",
+        //                     high: "0.021161",
+        //                     vol: "6.963557767"
+        //                 },
+        //                 {
+        //                     id:  1584950040,
+        //                     amount: "513.265",
+        //                     count:  151,
+        //                     open: "0.021165",
+        //                     close: "0.021155",
+        //                     low: "0.021151",
+        //                     high: "0.02118",
+        //                     vol: "10.862806573"
+        //                 },
+        //             ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseOHLCVs (data, market, timeframe, since, limit);
+    }
+
+    async fetchBalance (params = {}) {
+        await this.loadMarkets ();
+        const options = this.safeValue (this.options, 'fetchBalance', {});
+        const showAll = this.safeValue (options, 'show_all', '0');
+        const request = {
+            // 'currency': 'BTC',
+            'show_all': showAll, // required to show zero balances
+        };
+        const response = await this.privateGetWalletList (this.extend (request, params));
+        //
+        //     {
+        //         "errno": 0,
+        //         "errmsg": "success",
+        //         "result": [
+        //             { "available": "0", "frozen": "0", "currency": "BTC" }
+        //         ]
+        //     }
+        //
+        const result = { 'info': response };
+        const balances = this.safeValue (response, 'result', []);
+        for (let i = 0; i < balances.length; i++) {
+            const balance = balances[i];
+            const currencyId = this.safeString (balance, 'currency');
+            const code = this.safeCurrencyCode (currencyId);
+            const account = this.account ();
+            account['free'] = this.safeFloat (balance, 'available');
+            account['used'] = this.safeFloat (balance, 'frozen');
+            result[code] = account;
+        }
+        return this.parseBalance (result);
+    }
+
+    async fetchTradingFee (symbol, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const response = await this.privateGetEntrustRate (this.extend (request, params));
+        //
+        //     {
+        //         "errno":0,
+        //         "errmsg":"success",
+        //         "result": {
+        //             "toFee":"0.002","fromFee":"0.002"
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        return {
+            'info': response,
+            'symbol': symbol,
+            'maker': this.safeFloat (result, 'fromFee'),
+            'taker': this.safeFloat (result, 'toFee'),
+        };
+    }
+
+    async fetchOrderBook (symbol, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            'symbol': this.marketId (symbol),
+        };
+        const response = await this.publicGetMarketDepth (this.extend (request, params));
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: "success",
+        //         result: {
+        //             buyType: 1,
+        //             sellType: 1,
+        //             ts: 1584950701050,
+        //             symbol: "ETH-BTC",
+        //             asks: [
+        //                 ["0.021227", "0.182"],
+        //                 ["0.021249", "0.035"],
+        //                 ["0.021253", "0.058"],
+        //             ],
+        //             bids: [
+        //                 ["0.021207", "0.039"],
+        //                 ["0.021203", "0.051"],
+        //                 ["0.02117", "2.326"],
+        //             ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const timestamp = this.safeInteger (result, 'ts');
+        return this.parseOrderBook (result, timestamp);
+    }
+
+    parseTicker (ticker, market = undefined) {
+        //
+        // fetchTicker
+        //
+        //     {
+        //         id: 1584890087,
+        //         amount: '150032.919',
+        //         count: 134538,
+        //         open: '0.021394',
+        //         close: '0.021177',
+        //         low: '0.021053',
+        //         high: '0.021595',
+        //         vol: '3201.72451442'
+        //     }
+        //
+        const timestamp = this.safeTimestamp (ticker, 'id');
+        let symbol = undefined;
+        if (market) {
+            symbol = market['symbol'];
+        }
+        const open = this.safeFloat (ticker, 'open');
+        const last = this.safeFloat (ticker, 'close');
+        let change = undefined;
+        if (symbol !== undefined) {
+            change = parseFloat (this.priceToPrecision (symbol, last - open));
+        } else {
+            change = last - open;
+        }
+        const average = this.sum (last, open) / 2;
+        const percentage = change / open * 100;
+        const baseVolume = this.safeFloat (ticker, 'amount');
+        const quoteVolume = this.safeFloat (ticker, 'vol');
+        let vwap = undefined;
+        if (quoteVolume !== undefined) {
+            if (baseVolume !== undefined) {
+                if (baseVolume > 0) {
+                    vwap = parseFloat (this.priceToPrecision (symbol, quoteVolume / baseVolume));
+                }
+            }
+        }
+        return {
+            'symbol': symbol,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'high': this.safeFloat (ticker, 'high'),
+            'low': this.safeFloat (ticker, 'low'),
+            'bid': undefined,
+            'bidVolume': undefined,
+            'ask': undefined,
+            'askVolume': undefined,
+            'vwap': vwap,
+            'open': open,
+            'close': last,
+            'last': last,
+            'previousClose': undefined,
+            'change': change,
+            'percentage': percentage,
+            'average': average,
+            'baseVolume': baseVolume,
+            'quoteVolume': quoteVolume,
+            'info': ticker,
+        };
+    }
+
+    async fetchTickers (symbols = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {};
+        if (symbols !== undefined) {
+            const ids = this.marketIds (symbols);
+            request['symbol'] = ids.join (',');
+        }
+        const response = await this.publicGetMarket24kline (this.extend (request, params));
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: "success",
+        //         result: [
+        //             {
+        //                 symbol: "HB-AQ",
+        //                 data: {
+        //                     id:  1584893403,
+        //                     amount: "4753751.243400354852648809",
+        //                     count:  4724,
+        //                     open: "6.3497",
+        //                     close: "6.3318",
+        //                     low: "6.011",
+        //                     high: "6.5",
+        //                     vol: "29538384.7873528796542891343493"
+        //                 }
+        //             },
+        //         ]
+        //     }
+        //
+        const tickers = this.safeValue (response, 'result', []);
+        const result = {};
+        for (let i = 0; i < tickers.length; i++) {
+            const marketId = this.safeString (tickers[i], 'symbol');
+            let market = undefined;
+            let symbol = marketId;
+            if (marketId !== undefined) {
+                if (marketId in this.markets_by_id) {
+                    market = this.markets_by_id[marketId];
+                    symbol = market['symbol'];
+                } else {
+                    const [ baseId, quoteId ] = marketId.split ('-');
+                    const base = this.safeCurrencyCode (baseId);
+                    const quote = this.safeCurrencyCode (quoteId);
+                    symbol = base + '/' + quote;
+                }
+            }
+            const data = this.safeValue (tickers[i], 'data', {});
+            const ticker = this.parseTicker (data, market);
+            ticker['symbol'] = symbol;
+            result[symbol] = ticker;
+        }
+        return this.filterByArray (result, 'symbol', symbols);
+    }
+
+    async fetchTicker (symbol, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const response = await this.publicGetMarketDetail (this.extend (request, params));
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: 'success',
+        //         result: {
+        //             id: 1584890087,
+        //             amount: '150032.919',
+        //             count: 134538,
+        //             open: '0.021394',
+        //             close: '0.021177',
+        //             low: '0.021053',
+        //             high: '0.021595',
+        //             vol: '3201.72451442'
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        return this.parseTicker (result, market);
+    }
+
+    parseTrade (trade, market = undefined) {
+        //
+        // fetchTrades (public)
+        //
+        //     {
+        //         id: 1584948803298490,
+        //         amount: "2.737",
+        //         price: "0.021209",
+        //         direction: "sell",
+        //         ts: 1584948803
+        //     }
+        //
+        // fetchOrder trades
+        //
+        //     {
+        //         "id":null,
+        //         "ctime":"2020-03-23 20:07:17",
+        //         "price":"123.9",
+        //         "number":"0.010688626311541565",
+        //         "total_price":"1.324320799999999903",
+        //         "fee":"0.000021377252623083"
+        //     }
+        //
+        const id = this.safeString (trade, 'id');
+        const ctime = this.parse8601 (this.safeString (trade, 'ctime'));
+        const timestamp = this.safeTimestamp (trade, 'ts', ctime) - 28800000; // 8 hours, adjust to UTC;
+        let symbol = undefined;
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+        }
+        const side = this.safeString (trade, 'direction');
+        const price = this.safeFloat (trade, 'price');
+        const amount = this.safeFloat2 (trade, 'amount', 'number');
+        let cost = this.safeFloat (trade, 'total_price');
+        if ((cost === undefined) && (price !== undefined) && (amount !== undefined)) {
+            cost = price * amount;
+        }
+        const feeCost = this.safeFloat (trade, 'fee');
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            let feeCurrencyCode = undefined;
+            if (market !== undefined) {
+                if (side === 'buy') {
+                    feeCurrencyCode = market['base'];
+                } else if (side === 'sell') {
+                    feeCurrencyCode = market['quote'];
+                }
+            }
+            fee = {
+                'cost': feeCost,
+                'currency': feeCurrencyCode,
+            };
+        }
+        return {
+            'id': id,
+            'info': trade,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'symbol': symbol,
+            'order': undefined,
+            'type': undefined,
+            'side': side,
+            'takerOrMaker': undefined,
+            'price': price,
+            'amount': amount,
+            'cost': cost,
+            'fee': fee,
+        };
+    }
+
+    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const response = await this.publicGetMarketTrade (this.extend (request, params));
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: "success",
+        //         result: {
+        //             symbol: "ETH-BTC",
+        //             ts: 1584948805439,
+        //             data: [
+        //                 {
+        //                     id: 1584948803300883,
+        //                     amount: "0.583",
+        //                     price: "0.021209",
+        //                     direction: "buy",
+        //                     ts: 1584948803
+        //                 },
+        //                 {
+        //                     id: 1584948803298490,
+        //                     amount: "2.737",
+        //                     price: "0.021209",
+        //                     direction: "sell",
+        //                     ts: 1584948803
+        //                 },
+        //             ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseTrades (data, market, since, limit);
+    }
+
+    parseOrderStatus (status) {
+        const statuses = {
+            '1': 'open',
+            '2': 'open', // partially filled
+            '3': 'closed',
+            '4': 'canceled', // canceling
+            '5': 'canceled', // partially canceled
+            '6': 'canceled',
+        };
+        return this.safeString (statuses, status, status);
+    }
+
+    parseOrder (order, market = undefined) {
+        //
+        // createOrder
+        //
+        //     { order_sn: 'BM7442641584965237751ZMAKJ5' }
+        //
+        // fetchOpenOrders, fetchClosedOrders
+        //
+        //     {
+        //         "order_sn": "BL74426415849672087836G48N1",
+        //         "symbol": "ETH-USDT",
+        //         "ctime": "2020-03-23 20:40:08",
+        //         "type": 2,
+        //         "side": "buy",
+        //         "price": "90", // undefined for market orders
+        //         "number": "0.1",
+        //         "total_price": "9.0", // 0 for market orders
+        //         "deal_number": null,
+        //         "deal_price": null,
+        //         "status": 1,
+        //     }
+        //
+        // fetchOrder
+        //
+        //     {
+        //         order_sn: 'BM7442641584965237751ZMAKJ5',
+        //         symbol: 'ETH-USDT',
+        //         ctime: '2020-03-23 20:07:17',
+        //         type: 1,
+        //         side: 'buy',
+        //         price: '0',
+        //         number: '10',
+        //         total_price: '0',
+        //         deal_number: '0.080718626311541565',
+        //         deal_price: '123.890000000000000000',
+        //         status: 3,
+        //         // the trades field is injected by fetchOrder
+        //         trades: [
+        //             {
+        //                 id: null,
+        //                 ctime: '2020-03-23 20:07:17',
+        //                 price: '123.9',
+        //                 number: '0.010688626311541565',
+        //                 total_price: '1.324320799999999903',
+        //                 fee: '0.000021377252623083'
+        //             }
+        //         ]
+        //     }
+        //
+        const id = this.safeString (order, 'order_sn');
+        const orderStatus = this.safeString (order, 'status');
+        const status = this.parseOrderStatus (orderStatus);
+        let symbol = undefined;
+        const marketId = this.safeString (order, 'symbol');
+        let base = undefined;
+        let quote = undefined;
+        if (marketId !== undefined) {
+            if (marketId in this.markets_by_id) {
+                market = this.markets_by_id[marketId];
+            } else {
+                const [ baseId, quoteId ] = marketId.split ('-');
+                base = this.safeCurrencyCode (baseId);
+                quote = this.safeCurrencyCode (quoteId);
+                symbol = base + '/' + quote;
+            }
+        }
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+            base = market['base'];
+            quote = market['quote'];
+        }
+        const timestamp = this.parse8601 (this.safeString (order, 'ctime')) - 28800000; // 8 hours, adjust to UTC
+        const orderType = this.safeString (order, 'type');
+        const type = (orderType === '2') ? 'limit' : 'market';
+        const side = this.safeString (order, 'side');
+        // const amount = this.safeFloat (order, 'number');
+        // const price = this.safeFloat (order, 'price');
+        let cost = undefined;
+        let price = undefined;
+        let amount = undefined;
+        let average = undefined;
+        const number = this.safeFloat (order, 'number');
+        const totalPrice = this.safeFloat (order, 'total_price');
+        if (type === 'limit') {
+            amount = number;
+            price = this.safeFloat (order, 'price');
+        } else {
+            average = this.safeFloat (order, 'deal_price');
+            if (side === 'buy') {
+                amount = this.safeFloat (order, 'deal_number');
+            } else {
+                amount = number;
+            }
+        }
+        let fee = undefined;
+        let trades = undefined;
+        let filled = undefined;
+        let feeCost = undefined;
+        let remaining = undefined;
+        let lastTradeTimestamp = undefined;
+        // all orders except new orders and canceled orders
+        if ((orderStatus !== '1') && (orderStatus !== '6')) {
+            const rawTrades = this.safeValue (order, 'trades');
+            if (rawTrades !== undefined) {
+                for (let i = 0; i < rawTrades.length; i++) {
+                    rawTrades[i]['direction'] = side;
+                }
+                trades = this.parseTrades (rawTrades, market, undefined, undefined, {
+                    'symbol': market['symbol'],
+                    'order': id,
+                    'side': side,
+                    'type': type,
+                });
+                const tradesLength = trades.length;
+                if (tradesLength > 0) {
+                    const firstTrade = trades[0];
+                    feeCost = firstTrade['fee']['cost'];
+                    lastTradeTimestamp = firstTrade['timestamp'];
+                    filled = firstTrade['amount'];
+                    cost = firstTrade['cost'];
+                    for (let i = 1; i < trades.length; i++) {
+                        const trade = trades[i];
+                        feeCost = this.sum (feeCost, trade['fee']['cost']);
+                        filled = this.sum (filled, trade['amount']);
+                        cost = this.sum (cost, trade['cost']);
+                        lastTradeTimestamp = Math.max (lastTradeTimestamp, trade['timestamp']);
+                    }
+                    if (amount !== undefined) {
+                        filled = Math.min (amount, filled);
+                    }
+                    if (filled > 0) {
+                        average = cost / filled;
+                    }
+                }
+                if (feeCost !== undefined) {
+                    const feeCurrencyCode = (side === 'buy') ? base : quote;
+                    fee = {
+                        'cost': feeCost,
+                        'currency': feeCurrencyCode,
+                    };
+                }
+            }
+        } else {
+            filled = 0;
+            cost = 0;
+        }
+        if (cost === undefined) {
+            if (type === 'limit') {
+                cost = totalPrice;
+            } else if (side === 'buy') {
+                cost = number;
+            }
+        }
+        if (filled === undefined) {
+            if ((type === 'limit') && (orderStatus === '3')) {
+                filled = amount;
+            }
+        }
+        if (filled !== undefined) {
+            if (amount !== undefined) {
+                remaining = Math.max (amount - filled, 0);
+            }
+        }
+        return {
+            'info': order,
+            'id': id,
+            'clientOrderId': undefined,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'lastTradeTimestamp': lastTradeTimestamp,
+            'status': status,
+            'symbol': symbol,
+            'type': type,
+            'side': side,
+            'price': price,
+            'cost': cost,
+            'average': average,
+            'amount': amount,
+            'filled': filled,
+            'remaining': remaining,
+            'trades': trades,
+            'fee': fee,
+        };
+    }
+
+    async fetchClosedOrder (id, symbol = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            'order_sn': id,
+        };
+        const response = await this.privateGetEntrustDetail (this.extend (request, params));
+        //
+        //     {
+        //         "errno": 0,
+        //         "errmsg": "success",
+        //         "result": {
+        //             "trades": [
+        //                 {
+        //                     "id":null,
+        //                     "ctime":"2020-03-23 20:07:17",
+        //                     "price":"123.9",
+        //                     "number":"0.010688626311541565",
+        //                     "total_price":"1.324320799999999903",
+        //                     "fee":"0.000021377252623083"
+        //                 },
+        //             ],
+        //             "entrust":{
+        //                 "order_sn":"BM7442641584965237751ZMAKJ5",
+        //                 "symbol":"ETH-USDT",
+        //                 "ctime":"2020-03-23 20:07:17",
+        //                 "type":1,
+        //                 "side":"buy",
+        //                 "price":"0",
+        //                 "number":"10",
+        //                 "total_price":"0",
+        //                 "deal_number":"0.080718626311541565",
+        //                 "deal_price":"123.890000000000000000",
+        //                 "status":3
+        //             }
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const trades = this.safeValue (result, 'trades', []);
+        const order = this.safeValue (result, 'entrust', {});
+        order['trades'] = trades;
+        return this.parseOrder (order);
+    }
+
+    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        const response = await this.fetchClosedOrder (id, symbol, params);
+        return this.safeValue (response, 'trades', []);
+    }
+
+    async fetchOrdersWithMethod (method, symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            // 'from': 'BM7442641584965237751ZMAKJ5', // query start order_sn
+            'direct': 'prev', // next
+        };
+        let market = undefined;
+        if (symbol !== undefined) {
+            market = this.market (symbol);
+            request['symbol'] = market['id'];
+        }
+        if (limit !== undefined) {
+            request['limit'] = limit; // default 20, max 100
+        }
+        const response = await this[method] (this.extend (request, params));
+        //
+        //     {
+        //         "errno": 0,
+        //         "errmsg": "success",
+        //         "result": [
+        //             {
+        //                 "order_sn": "BL74426415849672087836G48N1",
+        //                 "symbol": "ETH-USDT",
+        //                 "ctime": "2020-03-23 20:40:08",
+        //                 "type": 2,
+        //                 "side": "buy",
+        //                 "price": "90",
+        //                 "number": "0.1",
+        //                 "total_price": "9.0",
+        //                 "deal_number": null,
+        //                 "deal_price": null,
+        //                 "status": 1,
+        //             }
+        //         ]
+        //     }
+        //
+        const result = this.safeValue (response, 'result', []);
+        return this.parseOrders (result, market, since, limit);
+    }
+
+    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        return await this.fetchOrdersWithMethod ('privateGetEntrustCurrentList', symbol, since, limit, params);
+    }
+
+    async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        return await this.fetchOrdersWithMethod ('privateGetEntrustHistoryList', symbol, since, limit, params);
+    }
+
+    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const orderType = side + '-' + type;
+        const request = {
+            'symbol': market['id'],
+            'type': orderType,
+        };
+        if (type === 'limit') {
+            request['amount'] = this.amountToPrecision (symbol, amount);
+            request['price'] = this.priceToPrecision (symbol, price);
+        } else if (type === 'market') {
+            // for market buy it requires the amount of quote currency to spend
+            if (side === 'buy') {
+                const createMarketBuyOrderRequiresPrice = this.safeValue (this.options, 'createMarketBuyOrderRequiresPrice', true);
+                let cost = amount;
+                if (createMarketBuyOrderRequiresPrice) {
+                    if (price !== undefined) {
+                        cost = amount * price;
+                    } else {
+                        throw new InvalidOrder (this.id + " createOrder() requires the price argument with market buy orders to calculate total order cost (amount to spend), where cost = amount * price. Supply a price argument to createOrder() call if you want the cost to be calculated for you from price and amount, or, alternatively, add .options['createMarketBuyOrderRequiresPrice'] = false and supply the total cost value in the 'amount' argument");
+                    }
+                }
+                const precision = market['precision']['price'];
+                request['amount'] = this.decimalToPrecision (cost, TRUNCATE, precision, this.precisionMode);
+            } else {
+                request['amount'] = this.amountToPrecision (symbol, amount);
+            }
+        }
+        const response = await this.privatePostEntrustAdd (this.extend (request, params));
+        //
+        //     {
+        //         errno: 0,
+        //         errmsg: 'success',
+        //         result: { order_sn: 'BM7442641584965237751ZMAKJ5' }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const order = this.parseOrder (result, market);
+        const timestamp = this.milliseconds ();
+        return this.extend (order, {
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'amount': amount,
+            'price': price,
+            'type': type,
+            'side': side,
+        });
+    }
+
+    async cancelOrder (id, symbol = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            'order_ids': id,
+        };
+        const response = await this.privatePostEntrustCancel (this.extend (request, params));
+        //
+        //     {
+        //         "errno": 0,
+        //         "errmsg": "success",
+        //         "result": {
+        //             "success": [ "avl12121", "bl3123123" ],
+        //             "failed": [ "sd24564", "sdf6564564" ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const success = this.safeValue (result, 'success', []);
+        if (!this.inArray (id, success)) {
+            throw new OrderNotFound (this.id + ' order id ' + id + ' not found in successfully canceled orders: ' + this.json (response));
+        }
+        const timestamp = undefined;
+        return {
+            'info': response,
+            'id': id,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'lastTradeTimestamp': undefined,
+            'status': 'canceled',
+            'symbol': symbol,
+            'type': undefined,
+            'side': undefined,
+            'price': undefined,
+            'cost': undefined,
+            'average': undefined,
+            'amount': undefined,
+            'filled': undefined,
+            'remaining': undefined,
+            'trades': undefined,
+            'fee': undefined,
+            'clientOrderId': undefined,
+        };
+    }
+
+    async cancelAllOrders (symbol = undefined, params = {}) {
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' cancelAllOrders() requires a symbol argument');
+        }
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const response = await this.privatePostEntrustCancel (this.extend (request, params));
+        //
+        //     {
+        //         "errno": 0,
+        //         "errmsg": "success",
+        //         "result": {
+        //             "success": [ "avl12121", "bl3123123" ],
+        //             "failed": [ "sd24564", "sdf6564564" ]
+        //         }
+        //     }
+        //
+        return response;
+    }
+
+    nonce () {
+        return this.milliseconds ();
+    }
+
+    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
+        let url = this.urls['api'][api] + '/' + path;
+        let keys = Object.keys (params);
+        const keysLength = keys.length;
+        if (api === 'public') {
+            if (keysLength > 0) {
+                url += '?' + this.urlencode (params);
+            }
+        } else {
+            const nonce = this.nonce ().toString ();
+            const uuid = this.uuid ();
+            const randomString = uuid.slice (0, 5);
+            const nonceString = nonce + '_' + randomString;
+            const auth = {};
+            auth[this.apiKey] = this.apiKey;
+            auth[this.secret] = this.secret;
+            auth[nonceString] = nonceString;
+            for (let i = 0; i < keysLength; i++) {
+                const key = keys[i];
+                auth[key] = key + '=' + params[key];
+            }
+            const keysorted = this.keysort (auth);
+            let stringToSign = '';
+            keys = Object.keys (keysorted);
+            for (let i = 0; i < keys.length; i++) {
+                const key = keys[i];
+                stringToSign += keysorted[key];
+            }
+            const signature = this.hash (this.encode (stringToSign), 'sha1');
+            headers = {
+                'Nonce': nonceString,
+                'Token': this.apiKey,
+                'Signature': signature,
+            };
+            if (method === 'POST') {
+                headers['Content-Type'] = 'application/x-www-form-urlencoded';
+                if (keysLength > 0) {
+                    body = this.urlencode (params);
+                }
+            } else {
+                if (keysLength > 0) {
+                    url += '?' + this.urlencode (params);
+                }
+            }
+        }
+        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
+    }
+
+    handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
+        if (response === undefined) {
+            return;
+        }
+        //
+        //     {"errno":20501,"errmsg":"base symbol error"}
+        //
+        const error = this.safeString (response, 'errno');
+        if ((error !== undefined) && (error !== '0')) {
+            const message = this.safeString (response, 'errmsg');
+            const feedback = this.id + ' ' + body;
+            this.throwExactlyMatchedException (this.exceptions['exact'], error, feedback);
+            this.throwBroadlyMatchedException (this.exceptions['broad'], message, feedback);
+            throw new ExchangeError (feedback); // unknown message
+        }
+    }
+};
diff --git a/WebServer/node_modules/ccxt/js/base/.eslintrc.js b/BackendServers/node_modules/ccxt/js/base/.eslintrc.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/.eslintrc.js
rename to BackendServers/node_modules/ccxt/js/base/.eslintrc.js
diff --git a/WebServer/node_modules/ccxt/js/base/Exchange.js b/BackendServers/node_modules/ccxt/js/base/Exchange.js
similarity index 92%
rename from WebServer/node_modules/ccxt/js/base/Exchange.js
rename to BackendServers/node_modules/ccxt/js/base/Exchange.js
index d08cdefcd..52cdf8b0e 100644
--- a/WebServer/node_modules/ccxt/js/base/Exchange.js
+++ b/BackendServers/node_modules/ccxt/js/base/Exchange.js
@@ -166,6 +166,7 @@ module.exports = class Exchange {
                 '429': RateLimitExceeded,
                 '404': ExchangeNotAvailable,
                 '409': ExchangeNotAvailable,
+                '410': ExchangeNotAvailable,
                 '500': ExchangeNotAvailable,
                 '501': ExchangeNotAvailable,
                 '502': ExchangeNotAvailable,
@@ -461,42 +462,50 @@ module.exports = class Exchange {
         }
     }
 
+    print (... args) {
+        console.log (... args)
+    }
+
     fetch (url, method = 'GET', headers = undefined, body = undefined) {
 
         if (isNode && this.userAgent) {
-            if (typeof this.userAgent === 'string')
+            if (typeof this.userAgent === 'string') {
                 headers = extend ({ 'User-Agent': this.userAgent }, headers)
-            else if ((typeof this.userAgent === 'object') && ('User-Agent' in this.userAgent))
+            } else if ((typeof this.userAgent === 'object') && ('User-Agent' in this.userAgent)) {
                 headers = extend (this.userAgent, headers)
+            }
         }
 
         if (typeof this.proxy === 'function') {
 
             url = this.proxy (url)
-            if (isNode)
+            if (isNode) {
                 headers = extend ({ 'Origin': this.origin }, headers)
+            }
 
         } else if (typeof this.proxy === 'string') {
 
-            if (this.proxy.length)
-                if (isNode)
-                    headers = extend ({ 'Origin': this.origin }, headers)
+            if (this.proxy.length && isNode) {
+                headers = extend ({ 'Origin': this.origin }, headers)
+            }
 
             url = this.proxy + url
         }
 
         headers = extend (this.headers, headers)
 
-        if (this.verbose)
-            console.log ("fetch:\n", this.id, method, url, "\nRequest:\n", headers, "\n", body, "\n")
+        if (this.verbose) {
+            this.print ("fetch:\n", this.id, method, url, "\nRequest:\n", headers, "\n", body, "\n")
+        }
 
         return this.executeRestRequest (url, method, headers, body)
     }
 
     async fetch2 (path, type = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
 
-        if (this.enableRateLimit)
+        if (this.enableRateLimit) {
             await this.throttle (this.rateLimit)
+        }
 
         const request = this.sign (path, type, method, params, headers, body)
         return this.fetch (request.url, request.method, request.headers, request.body)
@@ -611,8 +620,9 @@ module.exports = class Exchange {
                 this.last_json_response = json         // FIXME: for those classes that haven't switched to handleErrors yet
             }
 
-            if (this.verbose)
-                console.log ("handleRestResponse:\n", this.id, method, url, response.status, response.statusText, "\nResponse:\n", responseHeaders, "\n", responseBody, "\n")
+            if (this.verbose) {
+                this.print ("handleRestResponse:\n", this.id, method, url, response.status, response.statusText, "\nResponse:\n", responseHeaders, "\n", responseBody, "\n")
+            }
 
             this.handleErrors (response.status, response.statusText, url, method, responseHeaders, responseBody, json, requestHeaders, requestBody)
             this.defaultErrorHandler (response.status, response.statusText, url, method, responseHeaders, responseBody, json)
@@ -634,7 +644,7 @@ module.exports = class Exchange {
         if (currencies) {
             this.currencies = deepExtend (currencies, this.currencies)
         } else {
-            const baseCurrencies =
+            let baseCurrencies =
                 values.filter (market => 'base' in market)
                     .map (market => ({
                         id: market.baseId || market.base,
@@ -642,7 +652,7 @@ module.exports = class Exchange {
                         code: market.base,
                         precision: market.precision ? (market.precision.base || market.precision.amount) : 8,
                     }))
-            const quoteCurrencies =
+            let quoteCurrencies =
                 values.filter (market => 'quote' in market)
                     .map (market => ({
                         id: market.quoteId || market.quote,
@@ -650,6 +660,10 @@ module.exports = class Exchange {
                         code: market.quote,
                         precision: market.precision ? (market.precision.quote || market.precision.price) : 8,
                     }))
+            baseCurrencies = sortBy (baseCurrencies, 'code')
+            quoteCurrencies = sortBy (quoteCurrencies, 'code')
+            this.baseCurrencies = indexBy (baseCurrencies, 'code')
+            this.quoteCurrencies = indexBy (quoteCurrencies, 'code')
             const allCurrencies = baseCurrencies.concat (quoteCurrencies)
             const groupedCurrencies = groupBy (allCurrencies, 'code')
             const currencies = Object.keys (groupedCurrencies).map (code =>
@@ -677,27 +691,19 @@ module.exports = class Exchange {
         return this.setMarkets (markets, currencies)
     }
 
-    async loadMarkets (reload = false, params = {}) {
-        if (this.marketsLoaded) {
-            if (reload) {
-                return this.loadMarketsHelper (reload, params)
-            }
-            return this.markets
-        } else {
-            if (!this.marketsLoading) {
-                this.marketsLoading = new Promise (async (resolve, reject) => {
-                    try {
-                        const result = await this.loadMarketsHelper (reload, params)
-                        this.marketsLoaded = true
-                        this.marketsLoading = false
-                        resolve (result)
-                    } catch (e) {
-                        reject (e)
-                    }
-                })
-            }
-            return this.marketsLoading
+    // is async (returns a promise)
+    loadMarkets (reload = false, params = {}) {
+        if ((reload && !this.reloadingMarkets) || !this.marketsLoading) {
+            this.reloadingMarkets = true
+            this.marketsLoading = this.loadMarketsHelper (reload, params).then ((resolved) => {
+                this.reloadingMarkets = false
+                return resolved
+            }, (error) => {
+                this.reloadingMarkets = false
+                throw error
+            })
         }
+        return this.marketsLoading
     }
 
     async loadAccounts (reload = false, params = {}) {
@@ -737,43 +743,42 @@ module.exports = class Exchange {
     }
 
     parseTradingViewOHLCV (ohlcvs, market = undefined, timeframe = '1m', since = undefined, limit = undefined) {
-        const result = this.convertTradingViewToOHLCV (ohlcvs);
-        return this.parseOHLCVs (result, market, timeframe, since, limit);
+        const result = this.convertTradingViewToOHLCV (ohlcvs)
+        return this.parseOHLCVs (result, market, timeframe, since, limit)
     }
 
-    convertTradingViewToOHLCV (ohlcvs) {
+    convertTradingViewToOHLCV (ohlcvs, t = 't', o = 'o', h = 'h', l = 'l', c = 'c', v = 'v', ms = false) {
         const result = [];
-        for (let i = 0; i < ohlcvs['t'].length; i++) {
+        for (let i = 0; i < ohlcvs[t].length; i++) {
             result.push ([
-                ohlcvs['t'][i] * 1000,
-                ohlcvs['o'][i],
-                ohlcvs['h'][i],
-                ohlcvs['l'][i],
-                ohlcvs['c'][i],
-                ohlcvs['v'][i],
-            ]);
+                ms ? ohlcvs[t][i] : (ohlcvs[t][i] * 1000),
+                ohlcvs[o][i],
+                ohlcvs[h][i],
+                ohlcvs[l][i],
+                ohlcvs[c][i],
+                ohlcvs[v][i],
+            ])
         }
-        return result;
+        return result
     }
 
-    convertOHLCVToTradingView (ohlcvs) {
-        const result = {
-            't': [],
-            'o': [],
-            'h': [],
-            'l': [],
-            'c': [],
-            'v': [],
-        };
+    convertOHLCVToTradingView (ohlcvs, t = 't', o = 'o', h = 'h', l = 'l', c = 'c', v = 'v', ms = false) {
+        const result = {}
+        result[t] = []
+        result[o] = []
+        result[h] = []
+        result[l] = []
+        result[c] = []
+        result[v] = []
         for (let i = 0; i < ohlcvs.length; i++) {
-            result['t'].push (parseInt (ohlcvs[i][0] / 1000));
-            result['o'].push (ohlcvs[i][1]);
-            result['h'].push (ohlcvs[i][2]);
-            result['l'].push (ohlcvs[i][3]);
-            result['c'].push (ohlcvs[i][4]);
-            result['v'].push (ohlcvs[i][5]);
+            result[t].push (ms ? ohlcvs[i][0] : parseInt (ohlcvs[i][0] / 1000))
+            result[o].push (ohlcvs[i][1])
+            result[h].push (ohlcvs[i][2])
+            result[l].push (ohlcvs[i][3])
+            result[c].push (ohlcvs[i][4])
+            result[v].push (ohlcvs[i][5])
         }
-        return result;
+        return result
     }
 
     fetchTicker (symbol, params = {}) {
@@ -1038,27 +1043,34 @@ module.exports = class Exchange {
         return this.markets;
     }
 
-    filterBySinceLimit (array, since = undefined, limit = undefined, key = 'timestamp') {
-        if (since !== undefined && since !== null)
-            array = array.filter (entry => entry[key] >= since)
-        if (limit !== undefined && limit !== null)
-            array = array.slice (0, limit)
+    filterBySinceLimit (array, since = undefined, limit = undefined, key = 'timestamp', tail = false) {
+        const sinceIsDefined = (since !== undefined && since !== null)
+        if (sinceIsDefined) {
+            array = array.filter ((entry) => entry[key] >= since)
+        }
+        if (limit !== undefined && limit !== null) {
+            array = (tail && !sinceIsDefined) ? array.slice (-limit) : array.slice (0, limit)
+        }
         return array
     }
 
-    filterByValueSinceLimit (array, field, value = undefined, since = undefined, limit = undefined) {
+    filterByValueSinceLimit (array, field, value = undefined, since = undefined, limit = undefined, key = 'timestamp', tail = false) {
 
         const valueIsDefined = value !== undefined && value !== null
         const sinceIsDefined = since !== undefined && since !== null
 
         // single-pass filter for both symbol and since
-        if (valueIsDefined || sinceIsDefined)
-            array = Object.values (array).filter (entry =>
-                ((valueIsDefined ? (entry[field] === value)   : true) &&
-                 (sinceIsDefined ? (entry.timestamp >= since) : true)))
+        if (valueIsDefined || sinceIsDefined) {
+            array = Object.values (array).filter ((entry) =>
+                ((valueIsDefined ? (entry[field] === value) : true) &&
+                 (sinceIsDefined ? (entry[key] >= since) : true)))
+        }
 
-        if (limit !== undefined && limit !== null)
-            array = Object.values (array).slice (0, limit)
+        if (limit !== undefined && limit !== null) {
+            array = ((tail && !sinceIsDefined) ?
+                Object.values (array).slice (-limit) :
+                Object.values (array).slice (0, limit))
+        }
 
         return array
     }
@@ -1076,13 +1088,15 @@ module.exports = class Exchange {
         objects = Object.values (objects)
 
         // return all of them if no values were passed
-        if (values === undefined || values === null)
+        if (values === undefined || values === null) {
             return indexed ? indexBy (objects, key) : objects
+        }
 
         const result = []
         for (let i = 0; i < objects.length; i++) {
-            if (values.includes (objects[i][key]))
+            if (values.includes (objects[i][key])) {
                 result.push (objects[i])
+            }
         }
 
         return indexed ? indexBy (result, key) : result
@@ -1093,7 +1107,7 @@ module.exports = class Exchange {
         // if (!this.isArray (trades)) {
         //     throw new ExchangeError (this.id + ' parseTrades expected an array in the trades argument, but got ' + typeof trades);
         // }
-        let result = Object.values (trades || []).map (trade => this.extend (this.parseTrade (trade, market), params))
+        let result = Object.values (trades || []).map ((trade) => this.extend (this.parseTrade (trade, market), params))
         result = sortBy (result, 'timestamp')
         const symbol = (market !== undefined) ? market['symbol'] : undefined
         return this.filterBySymbolSinceLimit (result, symbol, since, limit)
@@ -1104,7 +1118,7 @@ module.exports = class Exchange {
         // if (!this.isArray (transactions)) {
         //     throw new ExchangeError (this.id + ' parseTransactions expected an array in the transactions argument, but got ' + typeof transactions);
         // }
-        let result = Object.values (transactions || []).map (transaction => this.extend (this.parseTransaction (transaction, currency), params))
+        let result = Object.values (transactions || []).map ((transaction) => this.extend (this.parseTransaction (transaction, currency), params))
         result = this.sortBy (result, 'timestamp');
         const code = (currency !== undefined) ? currency['code'] : undefined;
         return this.filterByCurrencySinceLimit (result, code, since, limit);
diff --git a/WebServer/node_modules/ccxt/js/base/errorHierarchy.js b/BackendServers/node_modules/ccxt/js/base/errorHierarchy.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/errorHierarchy.js
rename to BackendServers/node_modules/ccxt/js/base/errorHierarchy.js
diff --git a/WebServer/node_modules/ccxt/js/base/errors.js b/BackendServers/node_modules/ccxt/js/base/errors.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/errors.js
rename to BackendServers/node_modules/ccxt/js/base/errors.js
diff --git a/WebServer/node_modules/ccxt/js/base/functions.js b/BackendServers/node_modules/ccxt/js/base/functions.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/functions.js
rename to BackendServers/node_modules/ccxt/js/base/functions.js
diff --git a/WebServer/node_modules/ccxt/js/base/functions/crypto.js b/BackendServers/node_modules/ccxt/js/base/functions/crypto.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/functions/crypto.js
rename to BackendServers/node_modules/ccxt/js/base/functions/crypto.js
diff --git a/WebServer/node_modules/ccxt/js/base/functions/encode.js b/BackendServers/node_modules/ccxt/js/base/functions/encode.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/functions/encode.js
rename to BackendServers/node_modules/ccxt/js/base/functions/encode.js
diff --git a/WebServer/node_modules/ccxt/js/base/functions/generic.js b/BackendServers/node_modules/ccxt/js/base/functions/generic.js
similarity index 97%
rename from WebServer/node_modules/ccxt/js/base/functions/generic.js
rename to BackendServers/node_modules/ccxt/js/base/functions/generic.js
index 697b6d146..23970d702 100644
--- a/WebServer/node_modules/ccxt/js/base/functions/generic.js
+++ b/BackendServers/node_modules/ccxt/js/base/functions/generic.js
@@ -218,22 +218,19 @@ module.exports =
 /*  .............................................   */
 
     , deepExtend: function deepExtend (...xs) {
-
         let out = undefined
-
         for (const x of xs) {
-
             if (isDictionary (x)) {
-
-                if (!isObject (out))
+                if (!isObject (out)) {
                     out = {}
-
-                for (const k in x)
+                }
+                for (const k in x) {
                     out[k] = deepExtend (out[k], x[k])
-
-            } else out = x
+                }
+            } else {
+                out = x
+            }
         }
-
         return out
     }
 
diff --git a/WebServer/node_modules/ccxt/js/base/functions/misc.js b/BackendServers/node_modules/ccxt/js/base/functions/misc.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/functions/misc.js
rename to BackendServers/node_modules/ccxt/js/base/functions/misc.js
diff --git a/WebServer/node_modules/ccxt/js/base/functions/number.js b/BackendServers/node_modules/ccxt/js/base/functions/number.js
similarity index 96%
rename from WebServer/node_modules/ccxt/js/base/functions/number.js
rename to BackendServers/node_modules/ccxt/js/base/functions/number.js
index 6e5ed3133..82c8f0f28 100644
--- a/WebServer/node_modules/ccxt/js/base/functions/number.js
+++ b/BackendServers/node_modules/ccxt/js/base/functions/number.js
@@ -45,23 +45,27 @@ function numberToString (x) { // avoids scientific notation for too large and to
 
     if (typeof x === 'string') return x
 
+    const s = x.toString ()
     if (Math.abs (x) < 1.0) {
-        const s = x.toString ()
         const e = parseInt (s.split ('e-')[1])
         const neg = (s[0] === '-')
         if (e) {
             x *= Math.pow (10, e - 1)
             x = (neg ? '-' : '') + '0.' + (new Array (e)).join ('0') + x.toString ().substring (neg ? 3 : 2)
+            return x
         }
     } else {
-        let e = parseInt (x.toString ().split ('+')[1])
-        if (e > 20) {
-            e -= 20
-            x /= Math.pow (10, e)
-            x += (new Array (e + 1)).join ('0')
+        const parts = s.split ('e')
+        if (parts[1]) {
+            let e = parseInt (parts[1])
+            const m = parts[0].split ('.')
+            if (m[1]) {
+                e -= m[1].length
+            }
+            return m[0] + m[1] + (new Array (e + 1)).join ('0')
         }
     }
-    return x.toString ()
+    return s;
 }
 
 //-----------------------------------------------------------------------------
@@ -108,8 +112,9 @@ const decimalToPrecision = (x, roundingMode
     if (countingMode === TICK_SIZE) {
         const precisionDigitsString = decimalToPrecision (numPrecisionDigits, ROUND, 100, DECIMAL_PLACES, NO_PADDING)
         const newNumPrecisionDigits = precisionFromString (precisionDigitsString)
-        const missing = x % numPrecisionDigits
+        let missing = x % numPrecisionDigits
         // See: https://github.com/ccxt/ccxt/pull/6486
+        missing = Number (decimalToPrecision (missing, ROUND, 8, DECIMAL_PLACES, NO_PADDING));
         const fpError = decimalToPrecision (missing / numPrecisionDigits, ROUND, Math.max (newNumPrecisionDigits, 8), DECIMAL_PLACES, NO_PADDING)
         if (precisionFromString (fpError) !== 0) {
             if (roundingMode === ROUND) {
diff --git a/WebServer/node_modules/ccxt/js/base/functions/orders.js b/BackendServers/node_modules/ccxt/js/base/functions/orders.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/functions/orders.js
rename to BackendServers/node_modules/ccxt/js/base/functions/orders.js
diff --git a/WebServer/node_modules/ccxt/js/base/functions/platform.js b/BackendServers/node_modules/ccxt/js/base/functions/platform.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/functions/platform.js
rename to BackendServers/node_modules/ccxt/js/base/functions/platform.js
diff --git a/WebServer/node_modules/ccxt/js/base/functions/string.js b/BackendServers/node_modules/ccxt/js/base/functions/string.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/functions/string.js
rename to BackendServers/node_modules/ccxt/js/base/functions/string.js
diff --git a/WebServer/node_modules/ccxt/js/base/functions/throttle.js b/BackendServers/node_modules/ccxt/js/base/functions/throttle.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/functions/throttle.js
rename to BackendServers/node_modules/ccxt/js/base/functions/throttle.js
diff --git a/WebServer/node_modules/ccxt/js/base/functions/time.js b/BackendServers/node_modules/ccxt/js/base/functions/time.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/functions/time.js
rename to BackendServers/node_modules/ccxt/js/base/functions/time.js
diff --git a/WebServer/node_modules/ccxt/js/base/functions/type.js b/BackendServers/node_modules/ccxt/js/base/functions/type.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/base/functions/type.js
rename to BackendServers/node_modules/ccxt/js/base/functions/type.js
diff --git a/WebServer/node_modules/ccxt/js/bcex.js b/BackendServers/node_modules/ccxt/js/bcex.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/bcex.js
rename to BackendServers/node_modules/ccxt/js/bcex.js
index afd15bc10..fbb7b4271 100644
--- a/WebServer/node_modules/ccxt/js/bcex.js
+++ b/BackendServers/node_modules/ccxt/js/bcex.js
@@ -29,7 +29,7 @@ module.exports = class bcex extends Exchange {
                 'fetchTradingLimits': true,
             },
             'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/43362240-21c26622-92ee-11e8-9464-5801ec526d77.jpg',
+                'logo': 'https://user-images.githubusercontent.com/51840849/77231516-851c6900-6bac-11ea-8fd6-ee5c23eddbd4.jpg',
                 'api': 'https://www.bcex.top',
                 'www': 'https://www.bcex.top',
                 'doc': 'https://github.com/BCEX-TECHNOLOGY-LIMITED/API_Docs/wiki/Interface',
@@ -75,8 +75,8 @@ module.exports = class bcex extends Exchange {
                 'trading': {
                     'tierBased': false,
                     'percentage': true,
-                    'buy': 0.0,
-                    'sell': 0.2 / 100,
+                    'maker': 0.1 / 100,
+                    'taker': 0.2 / 100,
                 },
                 'funding': {
                     'tierBased': false,
@@ -369,6 +369,7 @@ module.exports = class bcex extends Exchange {
             'cost': cost,
             'order': orderId,
             'fee': undefined,
+            'takerOrMaker': undefined,
         };
     }
 
@@ -517,6 +518,8 @@ module.exports = class bcex extends Exchange {
             'remaining': this.safeFloat (order, 'numberover'),
             'status': status,
             'fee': undefined,
+            'clientOrderId': undefined,
+            'trades': undefined,
         };
     }
 
@@ -543,6 +546,7 @@ module.exports = class bcex extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -557,6 +561,7 @@ module.exports = class bcex extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
         return result;
     }
@@ -671,16 +676,4 @@ module.exports = class bcex extends Exchange {
             }
         }
     }
-
-    calculateFee (symbol, type, side, amount, price, takerOrMaker = 'taker', params = {}) {
-        const market = this.markets[symbol];
-        const rate = market[side];
-        const cost = parseFloat (this.costToPrecision (symbol, amount * price));
-        return {
-            'type': takerOrMaker,
-            'currency': market['quote'],
-            'rate': rate,
-            'cost': parseFloat (this.feeToPrecision (symbol, rate * cost)),
-        };
-    }
 };
diff --git a/WebServer/node_modules/ccxt/js/bequant.js b/BackendServers/node_modules/ccxt/js/bequant.js
similarity index 75%
rename from WebServer/node_modules/ccxt/js/bequant.js
rename to BackendServers/node_modules/ccxt/js/bequant.js
index 78d3cda1d..a2d9348e1 100644
--- a/WebServer/node_modules/ccxt/js/bequant.js
+++ b/BackendServers/node_modules/ccxt/js/bequant.js
@@ -2,18 +2,22 @@
 
 // ---------------------------------------------------------------------------
 
-const hitbtc2 = require ('./hitbtc2');
+const hitbtc = require ('./hitbtc');
 // ---------------------------------------------------------------------------
 
-module.exports = class bequant extends hitbtc2 {
+module.exports = class bequant extends hitbtc {
     describe () {
         return this.deepExtend (super.describe (), {
             'id': 'bequant',
             'name': 'Bequant',
             'countries': [ 'MT' ], // Malta
+            'pro': true,
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/55248342-a75dfe00-525a-11e9-8aa2-05e9dca943c6.jpg',
-                'api': 'https://api.bequant.io',
+                'api': {
+                    'public': 'https://api.bequant.io',
+                    'private': 'https://api.bequant.io',
+                },
                 'www': 'https://bequant.io',
                 'doc': [
                     'https://api.bequant.io/',
diff --git a/WebServer/node_modules/ccxt/js/bibox.js b/BackendServers/node_modules/ccxt/js/bibox.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bibox.js
rename to BackendServers/node_modules/ccxt/js/bibox.js
index e9d0a3d9f..083fccbe2 100644
--- a/WebServer/node_modules/ccxt/js/bibox.js
+++ b/BackendServers/node_modules/ccxt/js/bibox.js
@@ -46,14 +46,14 @@ module.exports = class bibox extends Exchange {
                 '1w': 'week',
             },
             'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/34902611-2be8bf1a-f830-11e7-91a2-11b2f292e750.jpg',
+                'logo': 'https://user-images.githubusercontent.com/51840849/77257418-3262b000-6c85-11ea-8fb8-20bdf20b3592.jpg',
                 'api': 'https://api.bibox.com',
                 'www': 'https://www.bibox.com',
                 'doc': [
                     'https://biboxcom.github.io/en/',
                 ],
                 'fees': 'https://bibox.zendesk.com/hc/en-us/articles/360002336133',
-                'referral': 'https://www.bibox.com/signPage?id=11114745&lang=en',
+                'referral': 'https://w2.bibox.com/login/register?invite_code=05Kj3I',
             },
             'api': {
                 'public': {
@@ -86,7 +86,7 @@ module.exports = class bibox extends Exchange {
                     'tierBased': false,
                     'percentage': true,
                     'taker': 0.001,
-                    'maker': 0.001,
+                    'maker': 0.0008,
                 },
                 'funding': {
                     'tierBased': false,
@@ -713,6 +713,7 @@ module.exports = class bibox extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -727,6 +728,7 @@ module.exports = class bibox extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/bigone.js b/BackendServers/node_modules/ccxt/js/bigone.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bigone.js
rename to BackendServers/node_modules/ccxt/js/bigone.js
index bc052f105..31eb326e7 100644
--- a/WebServer/node_modules/ccxt/js/bigone.js
+++ b/BackendServers/node_modules/ccxt/js/bigone.js
@@ -735,6 +735,7 @@ module.exports = class bigone extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -922,7 +923,7 @@ module.exports = class bigone extends Exchange {
         //     }
         //
         const trades = this.safeValue (response, 'data', []);
-        return this.parseTrades (trades, market, since, limit, params);
+        return this.parseTrades (trades, market, since, limit);
     }
 
     parseOrderStatus (status) {
diff --git a/WebServer/node_modules/ccxt/js/binance.js b/BackendServers/node_modules/ccxt/js/binance.js
similarity index 96%
rename from WebServer/node_modules/ccxt/js/binance.js
rename to BackendServers/node_modules/ccxt/js/binance.js
index fa5202268..6b19bc180 100644
--- a/WebServer/node_modules/ccxt/js/binance.js
+++ b/BackendServers/node_modules/ccxt/js/binance.js
@@ -4,7 +4,7 @@
 
 const Exchange = require ('./base/Exchange');
 const { ExchangeError, ArgumentsRequired, ExchangeNotAvailable, InsufficientFunds, OrderNotFound, InvalidOrder, DDoSProtection, InvalidNonce, AuthenticationError, InvalidAddress, RateLimitExceeded, PermissionDenied } = require ('./base/errors');
-const { ROUND } = require ('./base/functions/number');
+const { ROUND, TRUNCATE } = require ('./base/functions/number');
 
 //  ---------------------------------------------------------------------------
 
@@ -57,6 +57,10 @@ module.exports = class binance extends Exchange {
             },
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/29604020-d5483cdc-87ee-11e7-94c7-d1a8d9169293.jpg',
+                'test': {
+                    'fapiPublic': 'https://testnet.binancefuture.com/fapi/v1',
+                    'fapiPrivate': 'https://testnet.binancefuture.com/fapi/v1',
+                },
                 'api': {
                     'web': 'https://www.binance.com',
                     'wapi': 'https://api.binance.com/wapi/v3',
@@ -192,6 +196,8 @@ module.exports = class binance extends Exchange {
                         'ticker/24hr',
                         'ticker/price',
                         'ticker/bookTicker',
+                        'allForceOrders',
+                        'openInterest',
                         'leverageBracket',
                     ],
                 },
@@ -209,6 +215,8 @@ module.exports = class binance extends Exchange {
                         'income',
                     ],
                     'post': [
+                        'batchOrders',
+                        'positionSide/dual',
                         'positionMargin',
                         'marginType',
                         'order',
@@ -219,6 +227,7 @@ module.exports = class binance extends Exchange {
                         'listenKey',
                     ],
                     'delete': [
+                        'batchOrders',
                         'order',
                         'allOpenOrders',
                         'listenKey',
@@ -504,6 +513,13 @@ module.exports = class binance extends Exchange {
                     'max': this.safeFloat (filter, 'maxQty'),
                 };
             }
+            if ('MARKET_LOT_SIZE' in filters) {
+                const filter = this.safeValue (filters, 'MARKET_LOT_SIZE', {});
+                entry['limits']['market'] = {
+                    'min': this.safeFloat (filter, 'minQty'),
+                    'max': this.safeFloat (filter, 'maxQty'),
+                };
+            }
             if ('MIN_NOTIONAL' in filters) {
                 entry['limits']['cost']['min'] = this.safeFloat (filters['MIN_NOTIONAL'], 'minNotional');
             }
@@ -678,7 +694,7 @@ module.exports = class binance extends Exchange {
     }
 
     async fetchStatus (params = {}) {
-        const response = await this.wapiGetSystemStatus ();
+        const response = await this.wapiGetSystemStatus (params);
         let status = this.safeValue (response, 'status');
         if (status !== undefined) {
             status = (status === 0) ? 'ok' : 'maintenance';
@@ -965,6 +981,46 @@ module.exports = class binance extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //  spot
+        //
+        //     {
+        //         "symbol": "LTCBTC",
+        //         "orderId": 1,
+        //         "clientOrderId": "myOrder1",
+        //         "price": "0.1",
+        //         "origQty": "1.0",
+        //         "executedQty": "0.0",
+        //         "cummulativeQuoteQty": "0.0",
+        //         "status": "NEW",
+        //         "timeInForce": "GTC",
+        //         "type": "LIMIT",
+        //         "side": "BUY",
+        //         "stopPrice": "0.0",
+        //         "icebergQty": "0.0",
+        //         "time": 1499827319559,
+        //         "updateTime": 1499827319559,
+        //         "isWorking": true
+        //     }
+        //
+        //  futures
+        //
+        //     {
+        //         "symbol": "BTCUSDT",
+        //         "orderId": 1,
+        //         "clientOrderId": "myOrder1",
+        //         "price": "0.1",
+        //         "origQty": "1.0",
+        //         "executedQty": "1.0",
+        //         "cumQuote": "10.0",
+        //         "status": "NEW",
+        //         "timeInForce": "GTC",
+        //         "type": "LIMIT",
+        //         "side": "BUY",
+        //         "stopPrice": "0.0",
+        //         "updateTime": 1499827319559
+        //     }
+        //
         const status = this.parseOrderStatus (this.safeString (order, 'status'));
         let symbol = undefined;
         const marketId = this.safeString (order, 'symbol');
@@ -1049,9 +1105,11 @@ module.exports = class binance extends Exchange {
                 cost = parseFloat (this.costToPrecision (symbol, cost));
             }
         }
+        const clientOrderId = this.safeString (order, 'clientOrderId');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -1094,10 +1152,12 @@ module.exports = class binance extends Exchange {
         };
         if (uppercaseType === 'MARKET') {
             const quoteOrderQty = this.safeFloat (params, 'quoteOrderQty');
+            const precision = market['precision']['price'];
             if (quoteOrderQty !== undefined) {
-                request['quoteOrderQty'] = this.costToPrecision (symbol, quoteOrderQty);
+                request['quoteOrderQty'] = this.decimalToPrecision (quoteOrderQty, TRUNCATE, precision, this.precisionMode);
+                params = this.omit (params, 'quoteOrderQty');
             } else if (price !== undefined) {
-                request['quoteOrderQty'] = this.costToPrecision (symbol, amount * price);
+                request['quoteOrderQty'] = this.decimalToPrecision (amount * price, TRUNCATE, precision, this.precisionMode);
             } else {
                 request['quantity'] = this.amountToPrecision (symbol, amount);
             }
@@ -1772,7 +1832,7 @@ module.exports = class binance extends Exchange {
         if (api === 'wapi') {
             url += '.html';
         }
-        const userDataStream = (path === 'userDataStream');
+        const userDataStream = (path === 'userDataStream') || (path === 'listenKey');
         if (path === 'historicalTrades') {
             if (this.apiKey) {
                 headers = {
@@ -1882,7 +1942,7 @@ module.exports = class binance extends Exchange {
                     }
                     // a workaround for {"code":-2015,"msg":"Invalid API-key, IP, or permissions for action."}
                     // despite that their message is very confusing, it is raised by Binance
-                    // on a temporary ban (the API key is valid, but disabled for a while)
+                    // on a temporary ban, the API key is valid, but disabled for a while
                     if ((error === '-2015') && this.options['hasAlreadyAuthenticatedSuccessfully']) {
                         throw new DDoSProtection (this.id + ' temporary banned: ' + body);
                     }
diff --git a/WebServer/node_modules/ccxt/js/binanceje.js b/BackendServers/node_modules/ccxt/js/binanceje.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/binanceje.js
rename to BackendServers/node_modules/ccxt/js/binanceje.js
diff --git a/WebServer/node_modules/ccxt/js/binanceus.js b/BackendServers/node_modules/ccxt/js/binanceus.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/binanceus.js
rename to BackendServers/node_modules/ccxt/js/binanceus.js
diff --git a/WebServer/node_modules/ccxt/js/bit2c.js b/BackendServers/node_modules/ccxt/js/bit2c.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bit2c.js
rename to BackendServers/node_modules/ccxt/js/bit2c.js
index 42b1907aa..d6b41b0d3 100644
--- a/WebServer/node_modules/ccxt/js/bit2c.js
+++ b/BackendServers/node_modules/ccxt/js/bit2c.js
@@ -279,6 +279,7 @@ module.exports = class bit2c extends Exchange {
         const status = this.safeString (order, 'status');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -294,6 +295,7 @@ module.exports = class bit2c extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': order,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/bitbank.js b/BackendServers/node_modules/ccxt/js/bitbank.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bitbank.js
rename to BackendServers/node_modules/ccxt/js/bitbank.js
index cc8dda8d7..8b8f35684 100644
--- a/WebServer/node_modules/ccxt/js/bitbank.js
+++ b/BackendServers/node_modules/ccxt/js/bitbank.js
@@ -313,6 +313,7 @@ module.exports = class bitbank extends Exchange {
         const side = this.safeStringLower (order, 'side');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
diff --git a/WebServer/node_modules/ccxt/js/bitbay.js b/BackendServers/node_modules/ccxt/js/bitbay.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bitbay.js
rename to BackendServers/node_modules/ccxt/js/bitbay.js
index 382a4ca53..0a66ac0e3 100644
--- a/WebServer/node_modules/ccxt/js/bitbay.js
+++ b/BackendServers/node_modules/ccxt/js/bitbay.js
@@ -3,7 +3,7 @@
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { InvalidNonce, InsufficientFunds, AuthenticationError, InvalidOrder, ExchangeError, OrderNotFound, AccountSuspended, BadSymbol } = require ('./base/errors');
+const { InvalidNonce, InsufficientFunds, AuthenticationError, InvalidOrder, ExchangeError, OrderNotFound, AccountSuspended, BadSymbol, OrderImmediatelyFillable, RateLimitExceeded } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -53,6 +53,7 @@ module.exports = class bitbay extends Exchange {
                     'https://github.com/BitBayNet/API',
                     'https://docs.bitbay.net/v1.0.1-en/reference',
                 ],
+                'support': 'https://support.bitbay.net',
                 'fees': 'https://bitbay.net/en/fees',
             },
             'api': {
@@ -157,6 +158,8 @@ module.exports = class bitbay extends Exchange {
                 'FUNDS_NOT_SUFFICIENT': InsufficientFunds,
                 'OFFER_FUNDS_NOT_EXCEEDING_MINIMUMS': InvalidOrder,
                 'OFFER_NOT_FOUND': OrderNotFound,
+                'OFFER_WOULD_HAVE_BEEN_PARTIALLY_FILLED': OrderImmediatelyFillable,
+                'ACTION_LIMIT_EXCEEDED': RateLimitExceeded,
             },
         });
     }
@@ -288,6 +291,7 @@ module.exports = class bitbay extends Exchange {
         }
         return {
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -1043,6 +1047,7 @@ module.exports = class bitbay extends Exchange {
             'average': undefined,
             'fee': undefined,
             'trades': trades,
+            'clientOrderId': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/bitfinex.js b/BackendServers/node_modules/ccxt/js/bitfinex.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bitfinex.js
rename to BackendServers/node_modules/ccxt/js/bitfinex.js
index 2c20b3b91..883301578 100644
--- a/WebServer/node_modules/ccxt/js/bitfinex.js
+++ b/BackendServers/node_modules/ccxt/js/bitfinex.js
@@ -845,6 +845,7 @@ module.exports = class bitfinex extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -858,6 +859,8 @@ module.exports = class bitfinex extends Exchange {
             'filled': this.safeFloat (order, 'executed_amount'),
             'status': status,
             'fee': undefined,
+            'cost': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/bitfinex2.js b/BackendServers/node_modules/ccxt/js/bitfinex2.js
similarity index 96%
rename from WebServer/node_modules/ccxt/js/bitfinex2.js
rename to BackendServers/node_modules/ccxt/js/bitfinex2.js
index 9e218bcc6..86d97b188 100644
--- a/WebServer/node_modules/ccxt/js/bitfinex2.js
+++ b/BackendServers/node_modules/ccxt/js/bitfinex2.js
@@ -517,6 +517,26 @@ module.exports = class bitfinex2 extends bitfinex {
         return this.parseTicker (ticker, market);
     }
 
+    parseSymbol (marketId) {
+        if (marketId === undefined) {
+            return marketId;
+        }
+        marketId = marketId.replace ('t', '');
+        let baseId = undefined;
+        let quoteId = undefined;
+        if (marketId.indexOf (':') >= 0) {
+            const parts = marketId.split (':');
+            baseId = parts[0];
+            quoteId = parts[1];
+        } else {
+            baseId = marketId.slice (0, 3);
+            quoteId = marketId.slice (3, 6);
+        }
+        const base = this.safeCurrencyCode (baseId);
+        const quote = this.safeCurrencyCode (quoteId);
+        return base + '/' + quote;
+    }
+
     parseTrade (trade, market = undefined) {
         //
         // fetchTrades (public)
@@ -563,21 +583,29 @@ module.exports = class bitfinex2 extends bitfinex {
         const timestamp = trade[timestampIndex];
         if (isPrivate) {
             const marketId = trade[1];
-            if (marketId !== undefined) {
-                if (marketId in this.markets_by_id) {
-                    market = this.markets_by_id[marketId];
-                    symbol = market['symbol'];
-                } else {
-                    symbol = marketId;
-                }
+            if (marketId in this.markets_by_id) {
+                market = this.markets_by_id[marketId];
+                symbol = market['symbol'];
+            } else {
+                symbol = this.parseSymbol (marketId);
             }
             orderId = trade[3].toString ();
             takerOrMaker = (trade[8] === 1) ? 'maker' : 'taker';
-            const feeCost = trade[9];
+            let feeCost = trade[9];
             const feeCurrency = this.safeCurrencyCode (trade[10]);
             if (feeCost !== undefined) {
+                feeCost = -feeCost;
+                if (symbol in this.markets) {
+                    feeCost = this.feeToPrecision (symbol, feeCost);
+                } else {
+                    const currencyId = 'f' + feeCurrency;
+                    if (currencyId in this.currencies_by_id) {
+                        const currency = this.currencies_by_id[currencyId];
+                        feeCost = this.currencyToPrecision (currency['code'], feeCost);
+                    }
+                }
                 fee = {
-                    'cost': parseFloat (this.feeToPrecision (symbol, Math.abs (feeCost))),
+                    'cost': parseFloat (feeCost),
                     'currency': feeCurrency,
                 };
             }
@@ -671,7 +699,9 @@ module.exports = class bitfinex2 extends bitfinex {
             'PARTIALLY FILLED': 'open',
             'EXECUTED': 'closed',
             'CANCELED': 'canceled',
+            'CANCELED was: PARTIALLY FILLED': 'canceled',
             'INSUFFICIENT MARGIN': 'canceled',
+            'INSUFFICIENT BALANCE (G1) was: PARTIALLY FILLED': 'canceled',
             'RSN_DUST': 'rejected',
             'RSN_PAUSE': 'rejected',
         };
@@ -684,11 +714,15 @@ module.exports = class bitfinex2 extends bitfinex {
         const marketId = this.safeString (order, 3);
         if (marketId in this.markets_by_id) {
             market = this.markets_by_id[marketId];
+        } else {
+            symbol = this.parseSymbol (marketId);
         }
-        if (market !== undefined) {
+        if ((symbol === undefined) && (market !== undefined)) {
             symbol = market['symbol'];
         }
-        const timestamp = this.safeTimestamp (order, 5);
+        // https://github.com/ccxt/ccxt/issues/6686
+        // const timestamp = this.safeTimestamp (order, 5);
+        const timestamp = this.safeInteger (order, 5);
         const remaining = Math.abs (this.safeFloat (order, 6));
         const amount = Math.abs (this.safeFloat (order, 7));
         const filled = amount - remaining;
@@ -704,9 +738,11 @@ module.exports = class bitfinex2 extends bitfinex {
         const price = this.safeFloat (order, 16);
         const average = this.safeFloat (order, 17);
         const cost = price * filled;
+        const clientOrderId = this.safeString (order, 2);
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
diff --git a/WebServer/node_modules/ccxt/js/bitflyer.js b/BackendServers/node_modules/ccxt/js/bitflyer.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bitflyer.js
rename to BackendServers/node_modules/ccxt/js/bitflyer.js
index 6d740fd3d..a9c5e99dc 100644
--- a/WebServer/node_modules/ccxt/js/bitflyer.js
+++ b/BackendServers/node_modules/ccxt/js/bitflyer.js
@@ -356,6 +356,7 @@ module.exports = class bitflyer extends Exchange {
         const id = this.safeString (order, 'child_order_acceptance_id');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -370,6 +371,8 @@ module.exports = class bitflyer extends Exchange {
             'filled': filled,
             'remaining': remaining,
             'fee': fee,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/bitforex.js b/BackendServers/node_modules/ccxt/js/bitforex.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bitforex.js
rename to BackendServers/node_modules/ccxt/js/bitforex.js
index 1add51bc8..4cb110431 100644
--- a/WebServer/node_modules/ccxt/js/bitforex.js
+++ b/BackendServers/node_modules/ccxt/js/bitforex.js
@@ -312,6 +312,7 @@ module.exports = class bitforex extends Exchange {
             'cost': cost,
             'order': orderId,
             'fee': undefined,
+            'takerOrMaker': undefined,
         };
     }
 
@@ -465,6 +466,7 @@ module.exports = class bitforex extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -479,6 +481,7 @@ module.exports = class bitforex extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
         return result;
     }
diff --git a/WebServer/node_modules/ccxt/js/bithumb.js b/BackendServers/node_modules/ccxt/js/bithumb.js
similarity index 95%
rename from WebServer/node_modules/ccxt/js/bithumb.js
rename to BackendServers/node_modules/ccxt/js/bithumb.js
index 7a37629b4..3c850d287 100644
--- a/WebServer/node_modules/ccxt/js/bithumb.js
+++ b/BackendServers/node_modules/ccxt/js/bithumb.js
@@ -3,7 +3,7 @@
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError, ExchangeNotAvailable, AuthenticationError, BadRequest, PermissionDenied, InvalidAddress } = require ('./base/errors');
+const { ExchangeError, ExchangeNotAvailable, AuthenticationError, BadRequest, PermissionDenied, InvalidAddress, ArgumentsRequired } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -129,6 +129,8 @@ module.exports = class bithumb extends Exchange {
                         'max': undefined,
                     },
                 },
+                'baseId': undefined,
+                'quoteId': undefined,
             });
         }
         return result;
@@ -342,18 +344,20 @@ module.exports = class bithumb extends Exchange {
     async cancelOrder (id, symbol = undefined, params = {}) {
         const side_in_params = ('side' in params);
         if (!side_in_params) {
-            throw new ExchangeError (this.id + ' cancelOrder requires a `side` parameter (sell or buy) and a `currency` parameter');
+            throw new ArgumentsRequired (this.id + ' cancelOrder requires a `symbol` argument and a `side` parameter (sell or buy)');
         }
-        const currency = this.safeString (params, 'currency');
-        if (currency === undefined) {
-            throw new ExchangeError (this.id + ' cancelOrder requires a `currency` parameter (a currency id)');
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' cancelOrder requires a `symbol` argument and a `side` parameter (sell or buy)');
         }
+        const market = this.market (symbol);
         const side = (params['side'] === 'buy') ? 'bid' : 'ask';
         params = this.omit (params, [ 'side', 'currency' ]);
+        // https://github.com/ccxt/ccxt/issues/6771
         const request = {
             'order_id': id,
             'type': side,
-            'currency': currency,
+            'order_currency': market['base'],
+            'payment_currency': market['quote'],
         };
         return await this.privatePostTradeCancel (this.extend (request, params));
     }
@@ -370,7 +374,7 @@ module.exports = class bithumb extends Exchange {
         if (currency === 'XRP' || currency === 'XMR') {
             const destination = this.safeString (params, 'destination');
             if ((tag === undefined) && (destination === undefined)) {
-                throw new ExchangeError (this.id + ' ' + code + ' withdraw() requires a tag argument or an extra destination param');
+                throw new ArgumentsRequired (this.id + ' ' + code + ' withdraw() requires a tag argument or an extra destination param');
             } else if (tag !== undefined) {
                 request['destination'] = tag;
             }
diff --git a/WebServer/node_modules/ccxt/js/bitkk.js b/BackendServers/node_modules/ccxt/js/bitkk.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/bitkk.js
rename to BackendServers/node_modules/ccxt/js/bitkk.js
diff --git a/WebServer/node_modules/ccxt/js/bitmart.js b/BackendServers/node_modules/ccxt/js/bitmart.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bitmart.js
rename to BackendServers/node_modules/ccxt/js/bitmart.js
index 47a427900..fa4f8d386 100644
--- a/WebServer/node_modules/ccxt/js/bitmart.js
+++ b/BackendServers/node_modules/ccxt/js/bitmart.js
@@ -42,6 +42,7 @@ module.exports = class bitmart extends Exchange {
                 'www': 'https://www.bitmart.com/',
                 'doc': 'https://github.com/bitmartexchange/bitmart-official-api-docs',
                 'referral': 'http://www.bitmart.com/?r=rQCFLh',
+                'fees': 'https://www.bitmart.com/fee/en',
             },
             'requiredCredentials': {
                 'apiKey': true,
@@ -249,6 +250,7 @@ module.exports = class bitmart extends Exchange {
                 'precision': precision,
                 'limits': limits,
                 'info': market,
+                'active': undefined,
             });
         }
         return result;
@@ -682,6 +684,7 @@ module.exports = class bitmart extends Exchange {
         const type = undefined;
         return {
             'id': id,
+            'clientOrderId': undefined,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
diff --git a/WebServer/node_modules/ccxt/js/bitmax.js b/BackendServers/node_modules/ccxt/js/bitmax.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bitmax.js
rename to BackendServers/node_modules/ccxt/js/bitmax.js
index ec9754c07..cb3620f82 100644
--- a/WebServer/node_modules/ccxt/js/bitmax.js
+++ b/BackendServers/node_modules/ccxt/js/bitmax.js
@@ -52,7 +52,7 @@ module.exports = class bitmax extends Exchange {
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/66820319-19710880-ef49-11e9-8fbe-16be62a11992.jpg',
                 'api': 'https://bitmax.io',
-                'test': 'https://bitmax-test.io/api',
+                'test': 'https://bitmax-test.io',
                 'www': 'https://bitmax.io',
                 'doc': [
                     'https://github.com/bitmax-exchange/api-doc/blob/master/bitmax-api-doc-v1.2.md',
@@ -121,12 +121,17 @@ module.exports = class bitmax extends Exchange {
                 'exact': {
                     '2100': AuthenticationError, // {"code":2100,"message":"ApiKeyFailure"}
                     '5002': BadSymbol, // {"code":5002,"message":"Invalid Symbol"}
+                    '6001': BadSymbol, // {"code":6001,"message":"Trading is disabled on symbol."}
                     '6010': InsufficientFunds, // {'code': 6010, 'message': 'Not enough balance.'}
                     '60060': InvalidOrder, // { 'code': 60060, 'message': 'The order is already filled or canceled.' }
                     '600503': InvalidOrder, // {"code":600503,"message":"Notional is too small."}
                 },
                 'broad': {},
             },
+            'commonCurrencies': {
+                'BTCBEAR': 'BEAR',
+                'BTCBULL': 'BULL',
+            },
         });
     }
 
@@ -722,9 +727,11 @@ module.exports = class bitmax extends Exchange {
             'currency': this.safeString (order, 'feeAsset'),
         };
         const average = this.safeFloat (order, 'avgPrice');
+        const clientOrderId = id;
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -1145,7 +1152,7 @@ module.exports = class bitmax extends Exchange {
                 headers['x-auth-coid'] = coid;
             }
             const signature = this.hmac (this.encode (auth), this.encode (this.secret), 'sha256', 'base64');
-            headers['x-auth-signature'] = signature;
+            headers['x-auth-signature'] = this.decode (signature);
             if (method === 'GET') {
                 if (Object.keys (query).length) {
                     url += '?' + this.urlencode (query);
diff --git a/WebServer/node_modules/ccxt/js/bitmex.js b/BackendServers/node_modules/ccxt/js/bitmex.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bitmex.js
rename to BackendServers/node_modules/ccxt/js/bitmex.js
index ecb426a92..9cea5dbcc 100644
--- a/WebServer/node_modules/ccxt/js/bitmex.js
+++ b/BackendServers/node_modules/ccxt/js/bitmex.js
@@ -53,7 +53,7 @@ module.exports = class bitmex extends Exchange {
                     'https://github.com/BitMEX/api-connectors/tree/master/official-http',
                 ],
                 'fees': 'https://www.bitmex.com/app/fees',
-                'referral': 'https://www.bitmex.com/register/rm3C16',
+                'referral': 'https://www.bitmex.com/register/upZpOX',
             },
             'api': {
                 'public': {
@@ -1111,9 +1111,11 @@ module.exports = class bitmex extends Exchange {
         const id = this.safeString (order, 'orderID');
         const type = this.safeStringLower (order, 'ordType');
         const side = this.safeStringLower (order, 'side');
+        const clientOrderId = this.safeString (order, 'clOrdID');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -1128,6 +1130,7 @@ module.exports = class bitmex extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/bitso.js b/BackendServers/node_modules/ccxt/js/bitso.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bitso.js
rename to BackendServers/node_modules/ccxt/js/bitso.js
index 77239b93b..b5f853005 100644
--- a/WebServer/node_modules/ccxt/js/bitso.js
+++ b/BackendServers/node_modules/ccxt/js/bitso.js
@@ -139,6 +139,7 @@ module.exports = class bitso extends Exchange {
                 'info': market,
                 'limits': limits,
                 'precision': precision,
+                'active': undefined,
             });
         }
         return result;
@@ -369,9 +370,11 @@ module.exports = class bitso extends Exchange {
                 filled = amount - remaining;
             }
         }
+        const clientOrderId = this.safeString (order, 'client_id');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -385,6 +388,8 @@ module.exports = class bitso extends Exchange {
             'filled': filled,
             'status': status,
             'fee': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/bitstamp.js b/BackendServers/node_modules/ccxt/js/bitstamp.js
similarity index 93%
rename from WebServer/node_modules/ccxt/js/bitstamp.js
rename to BackendServers/node_modules/ccxt/js/bitstamp.js
index a6f366172..124d385fc 100644
--- a/WebServer/node_modules/ccxt/js/bitstamp.js
+++ b/BackendServers/node_modules/ccxt/js/bitstamp.js
@@ -16,6 +16,7 @@ module.exports = class bitstamp extends Exchange {
             'rateLimit': 1000,
             'version': 'v2',
             'userAgent': this.userAgents['chrome'],
+            'pro': true,
             'has': {
                 'CORS': true,
                 'fetchDepositAddress': true,
@@ -234,8 +235,27 @@ module.exports = class bitstamp extends Exchange {
             'pair': this.marketId (symbol),
         };
         const response = await this.publicGetOrderBookPair (this.extend (request, params));
-        const timestamp = this.safeTimestamp (response, 'timestamp');
-        return this.parseOrderBook (response, timestamp);
+        //
+        //     {
+        //         "timestamp": "1583652948",
+        //         "microtimestamp": "1583652948955826",
+        //         "bids": [
+        //             [ "8750.00", "1.33685271" ],
+        //             [ "8749.39", "0.07700000" ],
+        //             [ "8746.98", "0.07400000" ],
+        //         ]
+        //         "asks": [
+        //             [ "8754.10", "1.51995636" ],
+        //             [ "8754.71", "1.40000000" ],
+        //             [ "8754.72", "2.50000000" ],
+        //         ]
+        //     }
+        //
+        const microtimestamp = this.safeInteger (response, 'microtimestamp');
+        const timestamp = parseInt (microtimestamp / 1000);
+        const orderbook = this.parseOrderBook (response, timestamp);
+        orderbook['nonce'] = microtimestamp;
+        return orderbook;
     }
 
     async fetchTicker (symbol, params = {}) {
@@ -947,6 +967,7 @@ module.exports = class bitstamp extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -962,6 +983,7 @@ module.exports = class bitstamp extends Exchange {
             'trades': trades,
             'fee': fee,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -1081,18 +1103,44 @@ module.exports = class bitstamp extends Exchange {
             }
         } else {
             this.checkRequiredCredentials ();
-            const nonce = this.nonce ().toString ();
-            const auth = nonce + this.uid + this.apiKey;
-            const signature = this.encode (this.hmac (this.encode (auth), this.encode (this.secret)));
-            query = this.extend ({
-                'key': this.apiKey,
-                'signature': signature.toUpperCase (),
-                'nonce': nonce,
-            }, query);
-            body = this.urlencode (query);
-            headers = {
-                'Content-Type': 'application/x-www-form-urlencoded',
-            };
+            const authVersion = this.safeValue (this.options, 'auth', 'v2');
+            if ((authVersion === 'v1') || (api === 'v1')) {
+                const nonce = this.nonce ().toString ();
+                const auth = nonce + this.uid + this.apiKey;
+                const signature = this.encode (this.hmac (this.encode (auth), this.encode (this.secret)));
+                query = this.extend ({
+                    'key': this.apiKey,
+                    'signature': signature.toUpperCase (),
+                    'nonce': nonce,
+                }, query);
+                body = this.urlencode (query);
+                headers = {
+                    'Content-Type': 'application/x-www-form-urlencoded',
+                };
+            } else {
+                const xAuth = 'BITSTAMP ' + this.apiKey;
+                const xAuthNonce = this.uuid ();
+                const xAuthTimestamp = this.milliseconds ().toString ();
+                const xAuthVersion = 'v2';
+                let contentType = '';
+                headers = {
+                    'X-Auth': xAuth,
+                    'X-Auth-Nonce': xAuthNonce,
+                    'X-Auth-Timestamp': xAuthTimestamp,
+                    'X-Auth-Version': xAuthVersion,
+                };
+                if (method === 'POST') {
+                    if (Object.keys (query).length) {
+                        body = this.urlencode (query);
+                        contentType = 'application/x-www-form-urlencoded';
+                        headers['Content-Type'] = contentType;
+                    }
+                }
+                const authBody = body ? body : '';
+                const auth = xAuth + method + url.replace ('https://', '') + contentType + xAuthNonce + xAuthTimestamp + xAuthVersion + authBody;
+                const signature = this.encode (this.hmac (this.encode (auth), this.encode (this.secret)));
+                headers['X-Auth-Signature'] = signature;
+            }
         }
         return { 'url': url, 'method': method, 'body': body, 'headers': headers };
     }
diff --git a/WebServer/node_modules/ccxt/js/bitstamp1.js b/BackendServers/node_modules/ccxt/js/bitstamp1.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/bitstamp1.js
rename to BackendServers/node_modules/ccxt/js/bitstamp1.js
diff --git a/WebServer/node_modules/ccxt/js/bittrex.js b/BackendServers/node_modules/ccxt/js/bittrex.js
similarity index 91%
rename from WebServer/node_modules/ccxt/js/bittrex.js
rename to BackendServers/node_modules/ccxt/js/bittrex.js
index 5ff8645ad..1510a6c0b 100644
--- a/WebServer/node_modules/ccxt/js/bittrex.js
+++ b/BackendServers/node_modules/ccxt/js/bittrex.js
@@ -21,7 +21,7 @@ module.exports = class bittrex extends Exchange {
             // new metainfo interface
             'has': {
                 'CORS': false,
-                'createMarketOrder': false,
+                'createMarketOrder': true,
                 'fetchDepositAddress': true,
                 'fetchClosedOrders': true,
                 'fetchCurrencies': true,
@@ -63,6 +63,7 @@ module.exports = class bittrex extends Exchange {
                     'https://bittrex.zendesk.com/hc/en-us/articles/115003684371-BITTREX-SERVICE-FEES-AND-WITHDRAWAL-LIMITATIONS',
                     'https://bittrex.zendesk.com/hc/en-us/articles/115000199651-What-fees-does-Bittrex-charge-',
                 ],
+                'referral': 'https://bittrex.com/Account/Register?referralCode=1ZE-G0G-M3B',
             },
             'api': {
                 'v3': {
@@ -215,6 +216,9 @@ module.exports = class bittrex extends Exchange {
                     'INVALID_CURRENCY': ExchangeError,
                     'INVALID_PERMISSION': AuthenticationError,
                     'INSUFFICIENT_FUNDS': InsufficientFunds,
+                    'INVALID_CEILING_MARKET_BUY': InvalidOrder,
+                    'INVALID_FIAT_ACCOUNT': InvalidOrder,
+                    'INVALID_ORDER_TYPE': InvalidOrder,
                     'QUANTITY_NOT_PROVIDED': InvalidOrder,
                     'MIN_TRADE_REQUIREMENT_NOT_MET': InvalidOrder,
                     'ORDER_NOT_OPEN': OrderNotFound,
@@ -259,10 +263,10 @@ module.exports = class bittrex extends Exchange {
                 // see the implementation of fetchClosedOrdersV3 below
                 'fetchClosedOrdersMethod': 'fetch_closed_orders_v3',
                 'fetchClosedOrdersFilterBySince': true,
+                // 'createOrderMethod': 'create_order_v1',
             },
             'commonCurrencies': {
                 'BITS': 'SWIFT',
-                'CPC': 'Capricoin',
             },
         });
     }
@@ -662,6 +666,74 @@ module.exports = class bittrex extends Exchange {
     }
 
     async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
+        const uppercaseType = type.toUpperCase ();
+        const isMarket = (uppercaseType === 'MARKET');
+        const isCeilingLimit = (uppercaseType === 'CEILING_LIMIT');
+        const isCeilingMarket = (uppercaseType === 'CEILING_MARKET');
+        const isV3 = isMarket || isCeilingLimit || isCeilingMarket;
+        const defaultMethod = isV3 ? 'create_order_v3' : 'create_order_v1';
+        const method = this.safeValue (this.options, 'createOrderMethod', defaultMethod);
+        return await this[method] (symbol, type, side, amount, price, params);
+    }
+
+    async createOrderV3 (symbol, type, side, amount, price = undefined, params = {}) {
+        // A ceiling order is a market or limit order that allows you to specify
+        // the amount of quote currency you want to spend (or receive, if selling)
+        // instead of the quantity of the market currency (e.g. buy $100 USD of BTC
+        // at the current market BTC price)
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const uppercaseType = type.toUpperCase ();
+        const reverseId = market['baseId'] + '-' + market['quoteId'];
+        const request = {
+            'marketSymbol': reverseId,
+            'direction': side.toUpperCase (),
+            'type': uppercaseType, // LIMIT, MARKET, CEILING_LIMIT, CEILING_MARKET
+            // 'quantity': this.amountToPrecision (symbol, amount), // required for limit orders, excluded for ceiling orders
+            // 'ceiling': this.priceToPrecision (symbol, price), // required for ceiling orders, excluded for non-ceiling orders
+            // 'limit': this.priceToPrecision (symbol, price), // required for limit orders, excluded for market orders
+            // 'timeInForce': 'GOOD_TIL_CANCELLED', // IMMEDIATE_OR_CANCEL, FILL_OR_KILL, POST_ONLY_GOOD_TIL_CANCELLED
+            // 'useAwards': false, // optional
+        };
+        const isCeilingLimit = (uppercaseType === 'CEILING_LIMIT');
+        const isCeilingMarket = (uppercaseType === 'CEILING_MARKET');
+        const isCeilingOrder = isCeilingLimit || isCeilingMarket;
+        if (isCeilingOrder) {
+            request['ceiling'] = this.priceToPrecision (symbol, price);
+            // bittrex only accepts IMMEDIATE_OR_CANCEL or FILL_OR_KILL for ceiling orders
+            request['timeInForce'] = 'IMMEDIATE_OR_CANCEL';
+        } else {
+            request['quantity'] = this.amountToPrecision (symbol, amount);
+            if (uppercaseType === 'LIMIT') {
+                request['limit'] = this.priceToPrecision (symbol, price);
+                request['timeInForce'] = 'GOOD_TIL_CANCELLED';
+            } else {
+                // bittrex does not allow GOOD_TIL_CANCELLED for market orders
+                request['timeInForce'] = 'IMMEDIATE_OR_CANCEL';
+            }
+        }
+        const response = await this.v3PostOrders (this.extend (request, params));
+        //
+        //     {
+        //         id: 'f03d5e98-b5ac-48fb-8647-dd4db828a297',
+        //         marketSymbol: 'BTC-USDT',
+        //         direction: 'SELL',
+        //         type: 'LIMIT',
+        //         quantity: '0.01',
+        //         limit: '6000',
+        //         timeInForce: 'GOOD_TIL_CANCELLED',
+        //         fillQuantity: '0.00000000',
+        //         commission: '0.00000000',
+        //         proceeds: '0.00000000',
+        //         status: 'OPEN',
+        //         createdAt: '2020-03-18T02:37:33.42Z',
+        //         updatedAt: '2020-03-18T02:37:33.42Z'
+        //       }
+        //
+        return this.parseOrderV3 (response, market);
+    }
+
+    async createOrderV1 (symbol, type, side, amount, price = undefined, params = {}) {
         if (type !== 'limit') {
             throw new ExchangeError (this.id + ' allows limit orders only');
         }
@@ -707,7 +779,10 @@ module.exports = class bittrex extends Exchange {
         //         }
         //     }
         //
-        return this.extend (this.parseOrder (response), {
+        const result = this.safeValue (response, 'result', {});
+        return this.extend (this.parseOrder (result), {
+            'id': id,
+            'info': response,
             'status': 'canceled',
         });
     }
@@ -975,6 +1050,7 @@ module.exports = class bittrex extends Exchange {
         }
         return {
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -993,6 +1069,7 @@ module.exports = class bittrex extends Exchange {
                 'currency': feeCurrency,
             },
             'info': order,
+            'trades': undefined,
         };
     }
 
@@ -1117,6 +1194,7 @@ module.exports = class bittrex extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -1131,6 +1209,7 @@ module.exports = class bittrex extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
@@ -1173,6 +1252,7 @@ module.exports = class bittrex extends Exchange {
             'datetime': this.iso8601 (timestamp),
             'fee': this.safeValue (order, 'fee'),
             'info': order,
+            'takerOrMaker': undefined,
         };
     }
 
@@ -1320,10 +1400,16 @@ module.exports = class bittrex extends Exchange {
             }
         } else if (api === 'v3') {
             url += path;
-            if (Object.keys (params).length) {
-                url += '?' + this.rawencode (params);
+            let hashString = '';
+            if (method === 'POST') {
+                body = this.json (params);
+                hashString = body;
+            } else {
+                if (Object.keys (params).length) {
+                    url += '?' + this.rawencode (params);
+                }
             }
-            const contentHash = this.hash (this.encode (''), 'sha512', 'hex');
+            const contentHash = this.hash (this.encode (hashString), 'sha512', 'hex');
             const timestamp = this.milliseconds ().toString ();
             let auth = timestamp + url + method + contentHash;
             const subaccountId = this.safeValue (this.options, 'subaccountId');
@@ -1340,6 +1426,9 @@ module.exports = class bittrex extends Exchange {
             if (subaccountId !== undefined) {
                 headers['Api-Subaccount-Id'] = subaccountId;
             }
+            if (method === 'POST') {
+                headers['Content-Type'] = 'application/json';
+            }
         } else {
             this.checkRequiredCredentials ();
             url += api + '/';
@@ -1368,8 +1457,16 @@ module.exports = class bittrex extends Exchange {
         //     { success: false, message: "message" }
         //
         if (body[0] === '{') {
+            const feedback = this.id + ' ' + body;
             let success = this.safeValue (response, 'success');
             if (success === undefined) {
+                const code = this.safeString (response, 'code');
+                if (code !== undefined) {
+                    this.throwExactlyMatchedException (this.exceptions['exact'], code, feedback);
+                    if (code !== undefined) {
+                        this.throwBroadlyMatchedException (this.exceptions['broad'], code, feedback);
+                    }
+                }
                 // throw new ExchangeError (this.id + ' malformed response ' + this.json (response));
                 return;
             }
@@ -1379,7 +1476,6 @@ module.exports = class bittrex extends Exchange {
             }
             if (!success) {
                 const message = this.safeString (response, 'message');
-                const feedback = this.id + ' ' + body;
                 if (message === 'APIKEY_INVALID') {
                     if (this.options['hasAlreadyAuthenticatedSuccessfully']) {
                         throw new DDoSProtection (feedback);
diff --git a/WebServer/node_modules/ccxt/js/bitz.js b/BackendServers/node_modules/ccxt/js/bitz.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bitz.js
rename to BackendServers/node_modules/ccxt/js/bitz.js
index 7b6da7c50..50fa901e8 100644
--- a/WebServer/node_modules/ccxt/js/bitz.js
+++ b/BackendServers/node_modules/ccxt/js/bitz.js
@@ -160,6 +160,7 @@ module.exports = class bitz extends Exchange {
                 // https://github.com/ccxt/ccxt/issues/3881
                 // https://support.bit-z.pro/hc/en-us/articles/360007500654-BOX-BOX-Token-
                 'BOX': 'BOX Token',
+                'LEO': 'LeoCoin',
                 'XRB': 'NANO',
                 'PXC': 'Pixiecoin',
                 'VTC': 'VoteCoin',
@@ -649,7 +650,7 @@ module.exports = class bitz extends Exchange {
             }
         } else {
             if (since !== undefined) {
-                throw new ExchangeError (this.id + ' fetchOHLCV requires a limit argument if the since argument is specified');
+                throw new ArgumentsRequired (this.id + ' fetchOHLCV requires a limit argument if the since argument is specified');
             }
         }
         const response = await this.marketGetKline (this.extend (request, params));
@@ -753,6 +754,7 @@ module.exports = class bitz extends Exchange {
         const status = this.parseOrderStatus (this.safeString (order, 'status'));
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -768,6 +770,7 @@ module.exports = class bitz extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': order,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/bl3p.js b/BackendServers/node_modules/ccxt/js/bl3p.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/bl3p.js
rename to BackendServers/node_modules/ccxt/js/bl3p.js
diff --git a/WebServer/node_modules/ccxt/js/bleutrade.js b/BackendServers/node_modules/ccxt/js/bleutrade.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/bleutrade.js
rename to BackendServers/node_modules/ccxt/js/bleutrade.js
index 4b370f7c8..9bbd8a207 100644
--- a/WebServer/node_modules/ccxt/js/bleutrade.js
+++ b/BackendServers/node_modules/ccxt/js/bleutrade.js
@@ -27,6 +27,7 @@ module.exports = class bleutrade extends Exchange {
                 'fetchTicker': true,
                 'fetchOrders': false,
                 'fetchClosedOrders': true,
+                'fetchOpenOrders': true,
                 'fetchWithdrawals': true,
                 'fetchOrderTrades': false,
                 'fetchLedger': true,
@@ -72,6 +73,9 @@ module.exports = class bleutrade extends Exchange {
                     ],
                 },
                 'v3Private': {
+                    'get': [
+                        'statement',
+                    ],
                     'post': [
                         'getbalance',
                         'getbalances',
@@ -162,6 +166,7 @@ module.exports = class bleutrade extends Exchange {
                 'fee': this.safeFloat (item, 'WithdrawTxFee'),
                 'precision': this.safeFloat (item, 'DecimalPlaces'),
                 'info': item,
+                'limits': this.limits,
             };
         }
         return result;
@@ -187,8 +192,8 @@ module.exports = class bleutrade extends Exchange {
             //     MarketCurrencyLong: 'Litecoin',
             //     BaseCurrencyLong: 'Tether' }
             const id = this.safeString (market, 'MarketName');
-            const baseId = this.safeString (market, 'MarketCurrency');
-            const quoteId = this.safeString (market, 'BaseCurrency');
+            const baseId = this.safeString (market, 'MarketAsset');
+            const quoteId = this.safeString (market, 'BaseAsset');
             const base = this.safeCurrencyCode (baseId);
             const quote = this.safeCurrencyCode (quoteId);
             const symbol = base + '/' + quote;
@@ -679,6 +684,7 @@ module.exports = class bleutrade extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -693,6 +699,7 @@ module.exports = class bleutrade extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/braziliex.js b/BackendServers/node_modules/ccxt/js/braziliex.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/braziliex.js
rename to BackendServers/node_modules/ccxt/js/braziliex.js
index e3ef518ea..b082d1534 100644
--- a/WebServer/node_modules/ccxt/js/braziliex.js
+++ b/BackendServers/node_modules/ccxt/js/braziliex.js
@@ -452,6 +452,7 @@ module.exports = class braziliex extends Exchange {
         const status = (filledPercentage === 1.0) ? 'closed' : 'open';
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -467,6 +468,7 @@ module.exports = class braziliex extends Exchange {
             'trades': undefined,
             'fee': fee,
             'info': info,
+            'average': undefined,
         };
     }
 
@@ -590,7 +592,7 @@ module.exports = class braziliex extends Exchange {
             headers = {
                 'Content-type': 'application/x-www-form-urlencoded',
                 'Key': this.apiKey,
-                'Sign': this.decode (signature),
+                'Sign': signature,
             };
         }
         return { 'url': url, 'method': method, 'body': body, 'headers': headers };
diff --git a/WebServer/node_modules/ccxt/js/btcalpha.js b/BackendServers/node_modules/ccxt/js/btcalpha.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/btcalpha.js
rename to BackendServers/node_modules/ccxt/js/btcalpha.js
index 990ca8b69..4cdc5da22 100644
--- a/WebServer/node_modules/ccxt/js/btcalpha.js
+++ b/BackendServers/node_modules/ccxt/js/btcalpha.js
@@ -151,6 +151,8 @@ module.exports = class btcalpha extends Exchange {
                     },
                 },
                 'info': market,
+                'baseId': undefined,
+                'quoteId': undefined,
             });
         }
         return result;
@@ -315,6 +317,7 @@ module.exports = class btcalpha extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'status': status,
@@ -329,6 +332,8 @@ module.exports = class btcalpha extends Exchange {
             'trades': trades,
             'fee': undefined,
             'info': order,
+            'lastTradeTimestamp': undefined,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/btcbox.js b/BackendServers/node_modules/ccxt/js/btcbox.js
similarity index 97%
rename from WebServer/node_modules/ccxt/js/btcbox.js
rename to BackendServers/node_modules/ccxt/js/btcbox.js
index e9fa45401..87d6af7fa 100644
--- a/WebServer/node_modules/ccxt/js/btcbox.js
+++ b/BackendServers/node_modules/ccxt/js/btcbox.js
@@ -242,7 +242,16 @@ module.exports = class btcbox extends Exchange {
 
     parseOrder (order, market = undefined) {
         //
-        // {"id":11,"datetime":"2014-10-21 10:47:20","type":"sell","price":42000,"amount_original":1.2,"amount_outstanding":1.2,"status":"closed","trades":[]}
+        //     {
+        //         "id":11,
+        //         "datetime":"2014-10-21 10:47:20",
+        //         "type":"sell",
+        //         "price":42000,
+        //         "amount_original":1.2,
+        //         "amount_outstanding":1.2,
+        //         "status":"closed",
+        //         "trades":[]
+        //     }
         //
         const id = this.safeString (order, 'id');
         const datetimeString = this.safeString (order, 'datetime');
@@ -281,6 +290,7 @@ module.exports = class btcbox extends Exchange {
         const side = this.safeString (order, 'type');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -296,6 +306,7 @@ module.exports = class btcbox extends Exchange {
             'trades': trades,
             'fee': undefined,
             'info': order,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/btcmarkets.js b/BackendServers/node_modules/ccxt/js/btcmarkets.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/btcmarkets.js
rename to BackendServers/node_modules/ccxt/js/btcmarkets.js
index c4f6de1ca..f52cc450e 100644
--- a/WebServer/node_modules/ccxt/js/btcmarkets.js
+++ b/BackendServers/node_modules/ccxt/js/btcmarkets.js
@@ -4,6 +4,7 @@
 
 const Exchange = require ('./base/Exchange');
 const { ExchangeError, OrderNotFound, ArgumentsRequired, InvalidOrder, DDoSProtection } = require ('./base/errors');
+const { ROUND } = require ('./base/functions/number');
 
 //  ---------------------------------------------------------------------------
 
@@ -467,8 +468,8 @@ module.exports = class btcmarkets extends Exchange {
         });
         request['currency'] = market['quote'];
         request['instrument'] = market['base'];
-        request['price'] = parseInt (price * multiplier);
-        request['volume'] = parseInt (amount * multiplier);
+        request['price'] = parseInt (this.decimalToPrecision (price * multiplier, ROUND, 0));
+        request['volume'] = parseInt (this.decimalToPrecision (amount * multiplier, ROUND, 0));
         request['orderSide'] = orderSide;
         request['ordertype'] = this.capitalize (type);
         request['clientRequestId'] = this.nonce ().toString ();
@@ -564,6 +565,7 @@ module.exports = class btcmarkets extends Exchange {
                 'currency': feeCurrencyCode,
                 'cost': feeCost,
             },
+            'takerOrMaker': undefined,
         };
     }
 
@@ -611,9 +613,11 @@ module.exports = class btcmarkets extends Exchange {
             lastTradeTimestamp = trades[numTrades - 1]['timestamp'];
         }
         const id = this.safeString (order, 'id');
+        const clientOrderId = this.safeString (order, 'clientRequestId');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
diff --git a/WebServer/node_modules/ccxt/js/btctradeim.js b/BackendServers/node_modules/ccxt/js/btctradeim.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/btctradeim.js
rename to BackendServers/node_modules/ccxt/js/btctradeim.js
diff --git a/WebServer/node_modules/ccxt/js/btctradeua.js b/BackendServers/node_modules/ccxt/js/btctradeua.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/btctradeua.js
rename to BackendServers/node_modules/ccxt/js/btctradeua.js
index bbdd1a1f4..8c056885c 100644
--- a/WebServer/node_modules/ccxt/js/btctradeua.js
+++ b/BackendServers/node_modules/ccxt/js/btctradeua.js
@@ -320,6 +320,7 @@ module.exports = class btctradeua extends Exchange {
         }
         return {
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'timestamp': timestamp, // until they fix their timestamp
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -333,6 +334,9 @@ module.exports = class btctradeua extends Exchange {
             'remaining': this.safeFloat (order, 'amnt_trade'),
             'trades': undefined,
             'info': order,
+            'cost': undefined,
+            'average': undefined,
+            'fee': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/btcturk.js b/BackendServers/node_modules/ccxt/js/btcturk.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/btcturk.js
rename to BackendServers/node_modules/ccxt/js/btcturk.js
diff --git a/WebServer/node_modules/ccxt/js/buda.js b/BackendServers/node_modules/ccxt/js/buda.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/buda.js
rename to BackendServers/node_modules/ccxt/js/buda.js
index fff477ca0..e92a1617a 100644
--- a/WebServer/node_modules/ccxt/js/buda.js
+++ b/BackendServers/node_modules/ccxt/js/buda.js
@@ -3,7 +3,7 @@
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { AddressPending, AuthenticationError, ExchangeError, NotSupported, PermissionDenied } = require ('./base/errors');
+const { AddressPending, AuthenticationError, ExchangeError, NotSupported, PermissionDenied, ArgumentsRequired } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -563,6 +563,7 @@ module.exports = class buda extends Exchange {
         };
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -578,6 +579,7 @@ module.exports = class buda extends Exchange {
             'trades': undefined,
             'fee': fee,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -690,7 +692,7 @@ module.exports = class buda extends Exchange {
     async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
         await this.loadMarkets ();
         if (code === undefined) {
-            throw new ExchangeError (this.id + ': fetchDeposits() requires a currency code argument');
+            throw new ArgumentsRequired (this.id + ': fetchDeposits() requires a currency code argument');
         }
         const currency = this.currency (code);
         const request = {
@@ -705,7 +707,7 @@ module.exports = class buda extends Exchange {
     async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
         await this.loadMarkets ();
         if (code === undefined) {
-            throw new ExchangeError (this.id + ': fetchDeposits() requires a currency code argument');
+            throw new ArgumentsRequired (this.id + ': fetchDeposits() requires a currency code argument');
         }
         const currency = this.currency (code);
         const request = {
diff --git a/WebServer/node_modules/ccxt/js/bw.js b/BackendServers/node_modules/ccxt/js/bw.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/bw.js
rename to BackendServers/node_modules/ccxt/js/bw.js
index f10a0f063..dbd22c523 100644
--- a/WebServer/node_modules/ccxt/js/bw.js
+++ b/BackendServers/node_modules/ccxt/js/bw.js
@@ -666,6 +666,7 @@ module.exports = class bw extends Exchange {
             'status': 'open',
             'fee': undefined,
             'trades': undefined,
+            'clientOrderId': undefined,
         };
     }
 
@@ -735,6 +736,7 @@ module.exports = class bw extends Exchange {
         return {
             'info': order,
             'id': this.safeString (order, 'entrustId'),
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
diff --git a/BackendServers/node_modules/ccxt/js/bybit.js b/BackendServers/node_modules/ccxt/js/bybit.js
new file mode 100644
index 000000000..a62d06767
--- /dev/null
+++ b/BackendServers/node_modules/ccxt/js/bybit.js
@@ -0,0 +1,1925 @@
+'use strict';
+
+//  ---------------------------------------------------------------------------
+
+const Exchange = require ('./base/Exchange');
+const { TICK_SIZE } = require ('./base/functions/number');
+const { AuthenticationError, ExchangeError, ArgumentsRequired, PermissionDenied, InvalidOrder, OrderNotFound, InsufficientFunds, BadRequest, RateLimitExceeded, InvalidNonce } = require ('./base/errors');
+
+//  ---------------------------------------------------------------------------
+
+module.exports = class bybit extends Exchange {
+    describe () {
+        return this.deepExtend (super.describe (), {
+            'id': 'bybit',
+            'name': 'Bybit',
+            'countries': [ 'VG' ], // British Virgin Islands
+            'version': 'v2',
+            'userAgent': undefined,
+            'rateLimit': 100,
+            'has': {
+                'CORS': true,
+                'fetchMarkets': true,
+                'fetchBalance': true,
+                'fetchOHLCV': true,
+                'editOrder': true,
+                'fetchOrder': true,
+                'fetchOrders': true,
+                'fetchOpenOrders': true,
+                'fetchClosedOrders': true,
+                'fetchMyTrades': true,
+                'fetchTicker': true,
+                'fetchTickers': true,
+                'fetchOrderTrades': true,
+                'createOrder': true,
+                'cancelOrder': true,
+                'cancelAllOrders': true,
+                'fetchTime': true,
+                'fetchWithdrawals': true,
+                'fetchDeposits': false,
+                'fetchTransactions': false,
+                'fetchLedger': true,
+            },
+            'timeframes': {
+                '1m': '1',
+                '3m': '3',
+                '5m': '5',
+                '15m': '15',
+                '30m': '30',
+                '1h': '60',
+                '2h': '120',
+                '3h': '180',
+                '6h': '360',
+                '12h': '720',
+                '1d': 'D',
+                '1w': 'W',
+                '1M': 'M',
+                '1y': 'Y',
+            },
+            'urls': {
+                'test': 'https://api-testnet.bybit.com',
+                'logo': 'https://user-images.githubusercontent.com/51840849/76547799-daff5b80-649e-11ea-87fb-3be9bac08954.jpg',
+                'api': 'https://api.bybit.com',
+                'www': 'https://www.bybit.com/',
+                'doc': [
+                    'https://bybit-exchange.github.io/docs/inverse/',
+                    'https://github.com/bybit-exchange',
+                ],
+                'fees': 'https://help.bybit.com/hc/en-us/articles/360039261154',
+                'referral': 'https://www.bybit.com/app/register?ref=X7Prm',
+            },
+            'api': {
+                'public': {
+                    'get': [
+                        'orderBook/L2',
+                        'kline/list',
+                        'tickers',
+                        'trading-records',
+                        'symbols',
+                        'time',
+                        'announcement',
+                    ],
+                },
+                'private': {
+                    'get': [
+                        'order',
+                        'stop-order',
+                        'position/list',
+                        'wallet/balance',
+                        'execution/list',
+                    ],
+                    'post': [
+                        'order/create',
+                        'order/cancel',
+                        'order/cancelAll',
+                        'stop-order/cancelAll',
+                    ],
+                },
+                'openapi': {
+                    'get': [
+                        'order/list',
+                        'stop-order/list',
+                        'wallet/risk-limit/list',
+                        'wallet/risk-limit',
+                        'funding/prev-funding-rate',
+                        'funding/prev-funding',
+                        'funding/predicted-funding',
+                        'api-key',
+                        'wallet/fund/records',
+                        'wallet/withdraw/list',
+                    ],
+                    'post': [
+                        'order/replace',
+                        'stop-order/create',
+                        'stop-order/cancel',
+                        'stop-order/replace',
+                        'position/trading-stop',
+                    ],
+                },
+                'position': {
+                    'post': [
+                        'change-position-margin',
+                    ],
+                },
+                'user': {
+                    'get': [
+                        'leverage',
+                    ],
+                    'post': [
+                        'leverage/save',
+                    ],
+                },
+            },
+            'httpExceptions': {
+                '403': RateLimitExceeded, // Forbidden -- You request too many times
+            },
+            'exceptions': {
+                'exact': {
+                    '10001': BadRequest, // parameter error
+                    '10002': InvalidNonce, // request expired, check your timestamp and recv_window
+                    '10003': AuthenticationError, // Invalid apikey
+                    '10004': AuthenticationError, // invalid sign
+                    '10005': PermissionDenied, // permission denied for current apikey
+                    '10006': RateLimitExceeded, // too many requests
+                    '10007': AuthenticationError, // api_key not found in your request parameters
+                    '10010': PermissionDenied, // request ip mismatch
+                    '10017': BadRequest, // request path not found or request method is invalid
+                    '20001': OrderNotFound, // Order not exists
+                    '20003': InvalidOrder, // missing parameter side
+                    '20004': InvalidOrder, // invalid parameter side
+                    '20005': InvalidOrder, // missing parameter symbol
+                    '20006': InvalidOrder, // invalid parameter symbol
+                    '20007': InvalidOrder, // missing parameter order_type
+                    '20008': InvalidOrder, // invalid parameter order_type
+                    '20009': InvalidOrder, // missing parameter qty
+                    '20010': InvalidOrder, // qty must be greater than 0
+                    '20011': InvalidOrder, // qty must be an integer
+                    '20012': InvalidOrder, // qty must be greater than zero and less than 1 million
+                    '20013': InvalidOrder, // missing parameter price
+                    '20014': InvalidOrder, // price must be greater than 0
+                    '20015': InvalidOrder, // missing parameter time_in_force
+                    '20016': InvalidOrder, // invalid value for parameter time_in_force
+                    '20017': InvalidOrder, // missing parameter order_id
+                    '20018': InvalidOrder, // invalid date format
+                    '20019': InvalidOrder, // missing parameter stop_px
+                    '20020': InvalidOrder, // missing parameter base_price
+                    '20021': InvalidOrder, // missing parameter stop_order_id
+                    '20022': BadRequest, // missing parameter leverage
+                    '20023': BadRequest, // leverage must be a number
+                    '20031': BadRequest, // leverage must be greater than zero
+                    '20070': BadRequest, // missing parameter margin
+                    '20071': BadRequest, // margin must be greater than zero
+                    '20084': BadRequest, // order_id or order_link_id is required
+                    '30001': BadRequest, // order_link_id is repeated
+                    '30003': InvalidOrder, // qty must be more than the minimum allowed
+                    '30004': InvalidOrder, // qty must be less than the maximum allowed
+                    '30005': InvalidOrder, // price exceeds maximum allowed
+                    '30007': InvalidOrder, // price exceeds minimum allowed
+                    '30008': InvalidOrder, // invalid order_type
+                    '30009': ExchangeError, // no position found
+                    '30010': InsufficientFunds, // insufficient wallet balance
+                    '30011': PermissionDenied, // operation not allowed as position is undergoing liquidation
+                    '30012': PermissionDenied, // operation not allowed as position is undergoing ADL
+                    '30013': PermissionDenied, // position is in liq or adl status
+                    '30014': InvalidOrder, // invalid closing order, qty should not greater than size
+                    '30015': InvalidOrder, // invalid closing order, side should be opposite
+                    '30016': ExchangeError, // TS and SL must be cancelled first while closing position
+                    '30017': InvalidOrder, // estimated fill price cannot be lower than current Buy liq_price
+                    '30018': InvalidOrder, // estimated fill price cannot be higher than current Sell liq_price
+                    '30019': InvalidOrder, // cannot attach TP/SL params for non-zero position when placing non-opening position order
+                    '30020': InvalidOrder, // position already has TP/SL params
+                    '30021': InvalidOrder, // cannot afford estimated position_margin
+                    '30022': InvalidOrder, // estimated buy liq_price cannot be higher than current mark_price
+                    '30023': InvalidOrder, // estimated sell liq_price cannot be lower than current mark_price
+                    '30024': InvalidOrder, // cannot set TP/SL/TS for zero-position
+                    '30025': InvalidOrder, // trigger price should bigger than 10% of last price
+                    '30026': InvalidOrder, // price too high
+                    '30027': InvalidOrder, // price set for Take profit should be higher than Last Traded Price
+                    '30028': InvalidOrder, // price set for Stop loss should be between Liquidation price and Last Traded Price
+                    '30029': InvalidOrder, // price set for Stop loss should be between Last Traded Price and Liquidation price
+                    '30030': InvalidOrder, // price set for Take profit should be lower than Last Traded Price
+                    '30031': InsufficientFunds, // insufficient available balance for order cost
+                    '30032': InvalidOrder, // order has been filled or cancelled
+                    '30033': RateLimitExceeded, // The number of stop orders exceeds maximum limit allowed
+                    '30034': OrderNotFound, // no order found
+                    '30035': RateLimitExceeded, // too fast to cancel
+                    '30036': ExchangeError, // the expected position value after order execution exceeds the current risk limit
+                    '30037': InvalidOrder, // order already cancelled
+                    '30041': ExchangeError, // no position found
+                    '30042': InsufficientFunds, // insufficient wallet balance
+                    '30043': PermissionDenied, // operation not allowed as position is undergoing liquidation
+                    '30044': PermissionDenied, // operation not allowed as position is undergoing AD
+                    '30045': PermissionDenied, // operation not allowed as position is not normal status
+                    '30049': InsufficientFunds, // insufficient available balance
+                    '30050': ExchangeError, // any adjustments made will trigger immediate liquidation
+                    '30051': ExchangeError, // due to risk limit, cannot adjust leverage
+                    '30052': ExchangeError, // leverage can not less than 1
+                    '30054': ExchangeError, // position margin is invalid
+                    '30057': ExchangeError, // requested quantity of contracts exceeds risk limit
+                    '30063': ExchangeError, // reduce-only rule not satisfied
+                    '30067': InsufficientFunds, // insufficient available balance
+                    '30068': ExchangeError, // exit value must be positive
+                    '34026': ExchangeError, // the limit is no change
+                },
+                'broad': {
+                    'unknown orderInfo': OrderNotFound, // {"ret_code":-1,"ret_msg":"unknown orderInfo","ext_code":"","ext_info":"","result":null,"time_now":"1584030414.005545","rate_limit_status":99,"rate_limit_reset_ms":1584030414003,"rate_limit":100}
+                },
+            },
+            'precisionMode': TICK_SIZE,
+            'options': {
+                'code': 'BTC',
+                'fetchBalance': {
+                    'code': 'BTC',
+                },
+                'cancelAllOrders': {
+                    'method': 'privatePostOrderCancelAll', // privatePostStopOrderCancelAll
+                },
+                'recvWindow': 5 * 1000, // 5 sec default
+                'timeDifference': 0, // the difference between system clock and Binance clock
+                'adjustForTimeDifference': false, // controls the adjustment logic upon instantiation
+            },
+            'fees': {
+                'trading': {
+                    'tierBased': false,
+                    'percentage': true,
+                    'taker': 0.00075,
+                    'maker': -0.00025,
+                },
+                'funding': {
+                    'tierBased': false,
+                    'percentage': false,
+                    'withdraw': {},
+                    'deposit': {},
+                },
+            },
+        });
+    }
+
+    nonce () {
+        return this.milliseconds () - this.options['timeDifference'];
+    }
+
+    async loadTimeDifference () {
+        const serverTime = await this.fetchTime ();
+        const after = this.milliseconds ();
+        this.options['timeDifference'] = after - serverTime;
+        return this.options['timeDifference'];
+    }
+
+    async fetchTime (params = {}) {
+        const response = await this.publicGetTime (params);
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: {},
+        //         time_now: '1583933682.448826'
+        //     }
+        //
+        return this.safeTimestamp (response, 'time_now');
+    }
+
+    async fetchMarkets (params = {}) {
+        if (this.options['adjustForTimeDifference']) {
+            await this.loadTimeDifference ();
+        }
+        const response = await this.publicGetSymbols (params);
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: [
+        //             {
+        //                 name: 'BTCUSD',
+        //                 base_currency: 'BTC',
+        //                 quote_currency: 'USD',
+        //                 price_scale: 2,
+        //                 taker_fee: '0.00075',
+        //                 maker_fee: '-0.00025',
+        //                 leverage_filter: { min_leverage: 1, max_leverage: 100, leverage_step: '0.01' },
+        //                 price_filter: { min_price: '0.5', max_price: '999999.5', tick_size: '0.5' },
+        //                 lot_size_filter: { max_trading_qty: 1000000, min_trading_qty: 1, qty_step: 1 }
+        //             },
+        //         ],
+        //         time_now: '1583930495.454196'
+        //     }
+        //
+        const markets = this.safeValue (response, 'result', []);
+        const result = [];
+        for (let i = 0; i < markets.length; i++) {
+            const market = markets[i];
+            const id = this.safeString (market, 'name');
+            const baseId = this.safeString (market, 'base_currency');
+            const quoteId = this.safeString (market, 'quote_currency');
+            const base = this.safeCurrencyCode (baseId);
+            const quote = this.safeCurrencyCode (quoteId);
+            const symbol = base + '/' + quote;
+            const lotSizeFilter = this.safeValue (market, 'lot_size_filter', {});
+            const priceFilter = this.safeValue (market, 'price_filter', {});
+            const precision = {
+                'amount': this.safeFloat (lotSizeFilter, 'qty_step'),
+                'price': this.safeFloat (priceFilter, 'tick_size'),
+            };
+            result.push ({
+                'id': id,
+                'symbol': symbol,
+                'base': base,
+                'quote': quote,
+                'active': undefined,
+                'precision': precision,
+                'taker': this.safeFloat (market, 'taker_fee'),
+                'maker': this.safeFloat (market, 'maker_fee'),
+                'limits': {
+                    'amount': {
+                        'min': this.safeFloat (lotSizeFilter, 'min_trading_qty'),
+                        'max': this.safeFloat (lotSizeFilter, 'max_trading_qty'),
+                    },
+                    'price': {
+                        'min': this.safeFloat (priceFilter, 'min_price'),
+                        'max': this.safeFloat (priceFilter, 'max_price'),
+                    },
+                    'cost': {
+                        'min': undefined,
+                        'max': undefined,
+                    },
+                },
+                'type': 'future',
+                'spot': false,
+                'future': true,
+                'option': false,
+                'info': market,
+            });
+        }
+        return result;
+    }
+
+    async fetchBalance (params = {}) {
+        await this.loadMarkets ();
+        const defaultCode = this.safeValue (this.options, 'code', 'BTC');
+        const options = this.safeValue (this.options, 'fetchBalance', {});
+        const code = this.safeValue (options, 'code', defaultCode);
+        const currency = this.currency (code);
+        const request = {
+            'coin': currency['id'],
+        };
+        const response = await this.privateGetWalletBalance (this.extend (request, params));
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: {
+        //             BTC: {
+        //                 equity: 0,
+        //                 available_balance: 0,
+        //                 used_margin: 0,
+        //                 order_margin: 0,
+        //                 position_margin: 0,
+        //                 occ_closing_fee: 0,
+        //                 occ_funding_fee: 0,
+        //                 wallet_balance: 0,
+        //                 realised_pnl: 0,
+        //                 unrealised_pnl: 0,
+        //                 cum_realised_pnl: 0,
+        //                 given_cash: 0,
+        //                 service_cash: 0
+        //             }
+        //         },
+        //         time_now: '1583937810.370020',
+        //         rate_limit_status: 119,
+        //         rate_limit_reset_ms: 1583937810367,
+        //         rate_limit: 120
+        //     }
+        //
+        const result = {
+            'info': response,
+        };
+        const balances = this.safeValue (response, 'result', {});
+        const currencyIds = Object.keys (balances);
+        for (let i = 0; i < currencyIds.length; i++) {
+            const currencyId = currencyIds[i];
+            const balance = balances[currencyId];
+            const code = this.safeCurrencyCode (currencyId);
+            const account = this.account ();
+            account['free'] = this.safeFloat (balance, 'available_balance');
+            account['used'] = this.safeFloat (balance, 'used_margin');
+            account['total'] = this.safeFloat (balance, 'equity');
+            result[code] = account;
+        }
+        return this.parseBalance (result);
+    }
+
+    parseTicker (ticker, market = undefined) {
+        //
+        // fetchTicker
+        //
+        //     {
+        //         symbol: 'BTCUSD',
+        //         bid_price: '7680',
+        //         ask_price: '7680.5',
+        //         last_price: '7680.00',
+        //         last_tick_direction: 'MinusTick',
+        //         prev_price_24h: '7870.50',
+        //         price_24h_pcnt: '-0.024204',
+        //         high_price_24h: '8035.00',
+        //         low_price_24h: '7671.00',
+        //         prev_price_1h: '7780.00',
+        //         price_1h_pcnt: '-0.012853',
+        //         mark_price: '7683.27',
+        //         index_price: '7682.74',
+        //         open_interest: 188829147,
+        //         open_value: '23670.06',
+        //         total_turnover: '25744224.90',
+        //         turnover_24h: '102997.83',
+        //         total_volume: 225448878806,
+        //         volume_24h: 809919408,
+        //         funding_rate: '0.0001',
+        //         predicted_funding_rate: '0.0001',
+        //         next_funding_time: '2020-03-12T00:00:00Z',
+        //         countdown_hour: 7
+        //     }
+        //
+        const timestamp = undefined;
+        const marketId = this.safeString (ticker, 'symbol');
+        let symbol = marketId;
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
+        }
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+        }
+        const last = this.safeFloat (ticker, 'last_price');
+        const open = this.safeFloat (ticker, 'prev_price_24h');
+        let percentage = this.safeFloat (ticker, 'price_24h_pcnt');
+        if (percentage !== undefined) {
+            percentage *= 100;
+        }
+        let change = undefined;
+        let average = undefined;
+        if ((last !== undefined) && (open !== undefined)) {
+            change = last - open;
+            average = this.sum (open, last) / 2;
+        }
+        const baseVolume = this.safeFloat (ticker, 'turnover_24h');
+        const quoteVolume = this.safeFloat (ticker, 'volume_24h');
+        let vwap = undefined;
+        if (quoteVolume !== undefined && baseVolume !== undefined) {
+            vwap = quoteVolume / baseVolume;
+        }
+        return {
+            'symbol': symbol,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'high': this.safeFloat (ticker, 'high_price_24h'),
+            'low': this.safeFloat (ticker, 'low_price_24h'),
+            'bid': this.safeFloat (ticker, 'bid_price'),
+            'bidVolume': undefined,
+            'ask': this.safeFloat (ticker, 'ask_price'),
+            'askVolume': undefined,
+            'vwap': vwap,
+            'open': open,
+            'close': last,
+            'last': last,
+            'previousClose': undefined,
+            'change': change,
+            'percentage': percentage,
+            'average': average,
+            'baseVolume': baseVolume,
+            'quoteVolume': quoteVolume,
+            'info': ticker,
+        };
+    }
+
+    async fetchTicker (symbol, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const response = await this.publicGetTickers (this.extend (request, params));
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: [
+        //             {
+        //                 symbol: 'BTCUSD',
+        //                 bid_price: '7680',
+        //                 ask_price: '7680.5',
+        //                 last_price: '7680.00',
+        //                 last_tick_direction: 'MinusTick',
+        //                 prev_price_24h: '7870.50',
+        //                 price_24h_pcnt: '-0.024204',
+        //                 high_price_24h: '8035.00',
+        //                 low_price_24h: '7671.00',
+        //                 prev_price_1h: '7780.00',
+        //                 price_1h_pcnt: '-0.012853',
+        //                 mark_price: '7683.27',
+        //                 index_price: '7682.74',
+        //                 open_interest: 188829147,
+        //                 open_value: '23670.06',
+        //                 total_turnover: '25744224.90',
+        //                 turnover_24h: '102997.83',
+        //                 total_volume: 225448878806,
+        //                 volume_24h: 809919408,
+        //                 funding_rate: '0.0001',
+        //                 predicted_funding_rate: '0.0001',
+        //                 next_funding_time: '2020-03-12T00:00:00Z',
+        //                 countdown_hour: 7
+        //             }
+        //         ],
+        //         time_now: '1583948195.818255'
+        //     }
+        //
+        const result = this.safeValue (response, 'result', []);
+        const first = this.safeValue (result, 0);
+        const timestamp = this.safeTimestamp (response, 'time_now');
+        const ticker = this.parseTicker (first, market);
+        ticker['timestamp'] = timestamp;
+        ticker['datetime'] = this.iso8601 (timestamp);
+        return ticker;
+    }
+
+    async fetchTickers (symbols = undefined, params = {}) {
+        await this.loadMarkets ();
+        const response = await this.publicGetTickers (params);
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: [
+        //             {
+        //                 symbol: 'BTCUSD',
+        //                 bid_price: '7680',
+        //                 ask_price: '7680.5',
+        //                 last_price: '7680.00',
+        //                 last_tick_direction: 'MinusTick',
+        //                 prev_price_24h: '7870.50',
+        //                 price_24h_pcnt: '-0.024204',
+        //                 high_price_24h: '8035.00',
+        //                 low_price_24h: '7671.00',
+        //                 prev_price_1h: '7780.00',
+        //                 price_1h_pcnt: '-0.012853',
+        //                 mark_price: '7683.27',
+        //                 index_price: '7682.74',
+        //                 open_interest: 188829147,
+        //                 open_value: '23670.06',
+        //                 total_turnover: '25744224.90',
+        //                 turnover_24h: '102997.83',
+        //                 total_volume: 225448878806,
+        //                 volume_24h: 809919408,
+        //                 funding_rate: '0.0001',
+        //                 predicted_funding_rate: '0.0001',
+        //                 next_funding_time: '2020-03-12T00:00:00Z',
+        //                 countdown_hour: 7
+        //             }
+        //         ],
+        //         time_now: '1583948195.818255'
+        //     }
+        //
+        const result = this.safeValue (response, 'result', []);
+        const tickers = {};
+        for (let i = 0; i < result.length; i++) {
+            const ticker = this.parseTicker (result[i]);
+            const symbol = ticker['symbol'];
+            tickers[symbol] = ticker;
+        }
+        return this.filterByArray (tickers, 'symbol', symbols);
+    }
+
+    parseOHLCV (ohlcv, market = undefined, timeframe = '1m', since = undefined, limit = undefined) {
+        //
+        //     {
+        //         symbol: 'BTCUSD',
+        //         interval: '1',
+        //         open_time: 1583952540,
+        //         open: '7760.5',
+        //         high: '7764',
+        //         low: '7757',
+        //         close: '7763.5',
+        //         volume: '1259766',
+        //         turnover: '162.32773718999994'
+        //     },
+        //
+        return [
+            this.safeTimestamp (ohlcv, 'open_time'),
+            this.safeFloat (ohlcv, 'open'),
+            this.safeFloat (ohlcv, 'high'),
+            this.safeFloat (ohlcv, 'low'),
+            this.safeFloat (ohlcv, 'close'),
+            this.safeFloat (ohlcv, 'turnover'),
+        ];
+    }
+
+    async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+            'interval': this.timeframes[timeframe],
+        };
+        const duration = this.parseTimeframe (timeframe);
+        const now = this.seconds ();
+        if (since === undefined) {
+            if (limit === undefined) {
+                throw new ArgumentsRequired (this.id + ' fetchOHLCV requires a since argument or a limit argument');
+            } else {
+                request['from'] = now - limit * duration;
+            }
+        } else {
+            request['from'] = parseInt (since / 1000);
+        }
+        if (limit !== undefined) {
+            request['limit'] = limit; // max 200, default 200
+        }
+        const response = await this.publicGetKlineList (this.extend (request, params));
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: [
+        //             {
+        //                 symbol: 'BTCUSD',
+        //                 interval: '1',
+        //                 open_time: 1583952540,
+        //                 open: '7760.5',
+        //                 high: '7764',
+        //                 low: '7757',
+        //                 close: '7763.5',
+        //                 volume: '1259766',
+        //                 turnover: '162.32773718999994'
+        //             },
+        //         ],
+        //         time_now: '1583953082.397330'
+        //     }
+        const result = this.safeValue (response, 'result', {});
+        return this.parseOHLCVs (result, market, timeframe, since, limit);
+    }
+
+    parseTrade (trade, market = undefined) {
+        //
+        // fetchTrades (public)
+        //
+        //     {
+        //         id: 43785688,
+        //         symbol: 'BTCUSD',
+        //         price: 7786,
+        //         qty: 67,
+        //         side: 'Sell',
+        //         time: '2020-03-11T19:18:30.123Z'
+        //     }
+        //
+        // fetchMyTrades, fetchOrderTrades (private)
+        //
+        //     {
+        //         "closed_size": 0,
+        //         "cross_seq": 277136382,
+        //         "exec_fee": "0.0000001",
+        //         "exec_id": "256e5ef8-abfe-5772-971b-f944e15e0d68",
+        //         "exec_price": "8178.5",
+        //         "exec_qty": 1,
+        //         "exec_time": "1571676941.70682",
+        //         "exec_type": "Trade", //Exec Type Enum
+        //         "exec_value": "0.00012227",
+        //         "fee_rate": "0.00075",
+        //         "last_liquidity_ind": "RemovedLiquidity", //Liquidity Enum
+        //         "leaves_qty": 0,
+        //         "nth_fill": 2,
+        //         "order_id": "7ad50cb1-9ad0-4f74-804b-d82a516e1029",
+        //         "order_link_id": "",
+        //         "order_price": "8178",
+        //         "order_qty": 1,
+        //         "order_type": "Market", //Order Type Enum
+        //         "side": "Buy", //Side Enum
+        //         "symbol": "BTCUSD", //Symbol Enum
+        //         "user_id": 1
+        //     }
+        //
+        const id = this.safeString2 (trade, 'id', 'exec_id');
+        let symbol = undefined;
+        let base = undefined;
+        const marketId = this.safeString (trade, 'symbol');
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
+            symbol = market['symbol'];
+            base = market['base'];
+        }
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+            base = market['base'];
+        }
+        let timestamp = this.parse8601 (this.safeString (trade, 'time'));
+        if (timestamp === undefined) {
+            timestamp = this.safeTimestamp (trade, 'exec_time');
+        }
+        const side = this.safeStringLower (trade, 'side');
+        const price = this.safeFloat2 (trade, 'price', 'exec_price');
+        const amount = this.safeFloat2 (trade, 'qty', 'exec_qty');
+        let cost = this.safeFloat (trade, 'exec_value');
+        if (cost === undefined) {
+            if (amount !== undefined) {
+                if (price !== undefined) {
+                    cost = amount * price;
+                }
+            }
+        }
+        const lastLiquidityInd = this.safeString (trade, 'last_liquidity_ind');
+        const takerOrMaker = (lastLiquidityInd === 'AddedLiquidity') ? 'maker' : 'taker';
+        const feeCost = this.safeFloat (trade, 'exec_fee');
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            fee = {
+                'cost': feeCost,
+                'currency': base,
+                'rate': this.safeFloat (trade, 'fee_rate'),
+            };
+        }
+        return {
+            'id': id,
+            'info': trade,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'symbol': symbol,
+            'order': this.safeString (trade, 'order_id'),
+            'type': this.safeStringLower (trade, 'order_type'),
+            'side': side,
+            'takerOrMaker': takerOrMaker,
+            'price': price,
+            'amount': amount,
+            'cost': cost,
+            'fee': fee,
+        };
+    }
+
+    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+            // 'from': 123, // from id
+        };
+        if (limit !== undefined) {
+            request['count'] = limit; // default 500, max 1000
+        }
+        const response = await this.publicGetTradingRecords (this.extend (request, params));
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: [
+        //             {
+        //                 id: 43785688,
+        //                 symbol: 'BTCUSD',
+        //                 price: 7786,
+        //                 qty: 67,
+        //                 side: 'Sell',
+        //                 time: '2020-03-11T19:18:30.123Z'
+        //             },
+        //         ],
+        //         time_now: '1583954313.393362'
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        return this.parseTrades (result, market, since, limit);
+    }
+
+    parseOrderBook (orderbook, timestamp = undefined, bidsKey = 'Buy', asksKey = 'Sell', priceKey = 'price', amountKey = 'size') {
+        const bids = [];
+        const asks = [];
+        for (let i = 0; i < orderbook.length; i++) {
+            const bidask = orderbook[i];
+            const side = this.safeString (bidask, 'side');
+            if (side === 'Buy') {
+                bids.push (this.parseBidAsk (bidask, priceKey, amountKey));
+            } else if (side === 'Sell') {
+                asks.push (this.parseBidAsk (bidask, priceKey, amountKey));
+            } else {
+                throw new ExchangeError (this.id + ' parseOrderBook encountered an unrecognized bidask format: ' + this.json (bidask));
+            }
+        }
+        return {
+            'bids': this.sortBy (bids, 0, true),
+            'asks': this.sortBy (asks, 0),
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'nonce': undefined,
+        };
+    }
+
+    async fetchOrderBook (symbol, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const response = await this.publicGetOrderBookL2 (this.extend (request, params));
+        //
+        //     {
+        //         ret_code: 0,
+        //         ret_msg: 'OK',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: [
+        //             { symbol: 'BTCUSD', price: '7767.5', size: 677956, side: 'Buy' },
+        //             { symbol: 'BTCUSD', price: '7767', size: 580690, side: 'Buy' },
+        //             { symbol: 'BTCUSD', price: '7766.5', size: 475252, side: 'Buy' },
+        //             { symbol: 'BTCUSD', price: '7768', size: 330847, side: 'Sell' },
+        //             { symbol: 'BTCUSD', price: '7768.5', size: 97159, side: 'Sell' },
+        //             { symbol: 'BTCUSD', price: '7769', size: 6508, side: 'Sell' },
+        //         ],
+        //         time_now: '1583954829.874823'
+        //     }
+        //
+        const result = this.safeValue (response, 'result', []);
+        const timestamp = this.safeTimestamp (response, 'time_now');
+        return this.parseOrderBook (result, timestamp, 'Buy', 'Sell', 'price', 'size');
+    }
+
+    parseOrderStatus (status) {
+        const statuses = {
+            // basic orders
+            'Created': 'open',
+            'Rejected': 'rejected', // order is triggered but failed upon being placed
+            'New': 'open',
+            'PartiallyFilled': 'open',
+            'Filled': 'filled',
+            'Cancelled': 'canceled',
+            'PendingCancel': 'canceling', // the engine has received the cancellation but there is no guarantee that it will be successful
+            // conditional orders
+            'Active': 'closed', // order is triggered and placed successfully
+            'Untriggered': 'open', // order waits to be triggered
+            'Triggered': 'closed', // order is triggered
+            // 'Cancelled': 'canceled', // order is cancelled
+            // 'Rejected': 'rejected', // order is triggered but fail to be placed
+            'Deactivated': 'canceled', // conditional order was cancelled before triggering
+        };
+        return this.safeString (statuses, status, status);
+    }
+
+    parseOrder (order, market = undefined) {
+        //
+        // createOrder
+        //
+        //     {
+        //         "user_id": 1,
+        //         "order_id": "335fd977-e5a5-4781-b6d0-c772d5bfb95b",
+        //         "symbol": "BTCUSD",
+        //         "side": "Buy",
+        //         "order_type": "Limit",
+        //         "price": 8800,
+        //         "qty": 1,
+        //         "time_in_force": "GoodTillCancel",
+        //         "order_status": "Created",
+        //         "last_exec_time": 0,
+        //         "last_exec_price": 0,
+        //         "leaves_qty": 1,
+        //         "cum_exec_qty": 0,
+        //         "cum_exec_value": 0,
+        //         "cum_exec_fee": 0,
+        //         "reject_reason": "",
+        //         "order_link_id": "",
+        //         "created_at": "2019-11-30T11:03:43.452Z",
+        //         "updated_at": "2019-11-30T11:03:43.455Z"
+        //     }
+        //
+        const timestamp = this.parse8601 (this.safeString (order, 'created_at'));
+        const id = this.safeString (order, 'order_id');
+        const price = this.safeFloat (order, 'price');
+        const average = this.safeFloat (order, 'average_price');
+        const amount = this.safeFloat (order, 'qty');
+        let filled = this.safeFloat (order, 'cum_exec_qty');
+        let remaining = this.safeFloat (order, 'leaves_qty');
+        let lastTradeTimestamp = this.safeTimestamp (order, 'last_exec_time');
+        if (lastTradeTimestamp === 0) {
+            lastTradeTimestamp = undefined;
+        }
+        let cost = this.safeFloat (order, 'cum_exec_value');
+        if ((filled === undefined) && (amount !== undefined) && (remaining !== undefined)) {
+            filled = amount - remaining;
+        }
+        if (filled !== undefined) {
+            if ((remaining === undefined) && (amount !== undefined)) {
+                remaining = amount - filled;
+            }
+            if (cost === undefined) {
+                if (price !== undefined) {
+                    cost = price * filled;
+                }
+            }
+        }
+        const status = this.parseOrderStatus (this.safeString (order, 'order_status'));
+        const marketId = this.safeString (order, 'symbol');
+        let symbol = undefined;
+        let base = undefined;
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
+            symbol = market['symbol'];
+            base = market['base'];
+        }
+        if (market !== undefined) {
+            if (symbol === undefined) {
+                symbol = market['symbol'];
+            }
+            if (base === undefined) {
+                base = market['base'];
+            }
+        }
+        const side = this.safeStringLower (order, 'side');
+        let feeCost = this.safeFloat (order, 'cum_exec_fee');
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            feeCost = Math.abs (feeCost);
+            fee = {
+                'cost': feeCost,
+                'currency': base,
+            };
+        }
+        const type = this.safeStringLower (order, 'order_type');
+        let clientOrderId = this.safeString (order, 'order_link_id');
+        if ((clientOrderId !== undefined) && (clientOrderId.length < 1)) {
+            clientOrderId = undefined;
+        }
+        return {
+            'info': order,
+            'id': id,
+            'clientOrderId': clientOrderId,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'lastTradeTimestamp': lastTradeTimestamp,
+            'symbol': symbol,
+            'type': type,
+            'side': side,
+            'price': price,
+            'amount': amount,
+            'cost': cost,
+            'average': average,
+            'filled': filled,
+            'remaining': remaining,
+            'status': status,
+            'fee': fee,
+            'trades': undefined,
+        };
+    }
+
+    async fetchOrder (id, symbol = undefined, params = {}) {
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchOrder requires a symbol argument');
+        }
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+            // 'order_link_id': 'string', // one of order_id, stop_order_id or order_link_id is required
+            // regular orders ---------------------------------------------
+            // 'order_id': id, // one of order_id or order_link_id is required for regular orders
+            // conditional orders ---------------------------------------------
+            // 'stop_order_id': id, // one of stop_order_id or order_link_id is required for conditional orders
+        };
+        let method = 'privateGetOrder';
+        const stopOrderId = this.safeString (params, 'stop_order_id');
+        if (stopOrderId === undefined) {
+            const orderLinkId = this.safeString (params, 'order_link_id');
+            if (orderLinkId === undefined) {
+                request['order_id'] = id;
+            }
+        } else {
+            method = 'privateGetStopOrder';
+        }
+        const response = await this[method] (this.extend (request, params));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "OK",
+        //         "ext_code": "",
+        //         "ext_info": "",
+        //         "result": {
+        //             "user_id": 1,
+        //             "symbol": "BTCUSD",
+        //             "side": "Sell",
+        //             "order_type": "Limit",
+        //             "price": "8083",
+        //             "qty": 10,
+        //             "time_in_force": "GoodTillCancel",
+        //             "order_status": "New",
+        //             "ext_fields": { "o_req_num": -308787, "xreq_type": "x_create", "xreq_offset": 4154640 },
+        //             "leaves_qty": 10,
+        //             "leaves_value": "0.00123716",
+        //             "cum_exec_qty": 0,
+        //             "reject_reason": "",
+        //             "order_link_id": "",
+        //             "created_at": "2019-10-21T07:28:19.396246Z",
+        //             "updated_at": "2019-10-21T07:28:19.396246Z",
+        //             "order_id": "efa44157-c355-4a98-b6d6-1d846a936b93"
+        //         },
+        //         "time_now": "1571651135.291930",
+        //         "rate_limit_status": 99, // The remaining number of accesses in one minute
+        //         "rate_limit_reset_ms": 1580885703683,
+        //         "rate_limit": 100
+        //     }
+        //
+        // conditional orders
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "OK",
+        //         "ext_code": "",
+        //         "ext_info": "",
+        //         "result": {
+        //             "user_id": 1,
+        //             "symbol": "BTCUSD",
+        //             "side": "Buy",
+        //             "order_type": "Limit",
+        //             "price": "8000",
+        //             "qty": 1,
+        //             "time_in_force": "GoodTillCancel",
+        //             "order_status": "Untriggered",
+        //             "ext_fields": {},
+        //             "leaves_qty": 1,
+        //             "leaves_value": "0.00013333",
+        //             "cum_exec_qty": 0,
+        //             "cum_exec_value": null,
+        //             "cum_exec_fee": null,
+        //             "reject_reason": "",
+        //             "order_link_id": "",
+        //             "created_at": "2019-12-27T19:56:24.052194Z",
+        //             "updated_at": "2019-12-27T19:56:24.052194Z",
+        //             "order_id": "378a1bbc-a93a-4e75-87f4-502ea754ba36"
+        //         },
+        //         "time_now": "1577476584.386958",
+        //         "rate_limit_status": 99,
+        //         "rate_limit_reset_ms": 1580885703683,
+        //         "rate_limit": 100
+        //     }
+        //
+        const result = this.safeValue (response, 'result');
+        return this.parseOrder (result, market);
+    }
+
+    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            // orders ---------------------------------------------------------
+            'side': this.capitalize (side),
+            'symbol': market['id'],
+            'order_type': this.capitalize (type),
+            'qty': this.amountToPrecision (symbol, amount), // order quantity in USD, integer only
+            // 'price': this.priceToPrecision (symbol, price), // required for limit orders
+            'time_in_force': 'GoodTillCancel', // ImmediateOrCancel, FillOrKill, PostOnly
+            // 'take_profit': 123.45, // take profit price, only take effect upon opening the position
+            // 'stop_loss': 123.45, // stop loss price, only take effect upon opening the position
+            // 'reduce_only': false, // reduce only
+            // when creating a closing order, bybit recommends a True value for
+            // close_on_trigger to avoid failing due to insufficient available margin
+            // 'close_on_trigger': false,
+            // 'order_link_id': 'string', // unique client order id, max 36 characters
+            // conditional orders ---------------------------------------------
+            // base_price is used to compare with the value of stop_px, to decide
+            // whether your conditional order will be triggered by crossing trigger
+            // price from upper side or lower side, mainly used to identify the
+            // expected direction of the current conditional order
+            // 'base_price': 123.45, // required for conditional orders
+            // 'stop_px': 123.45, // trigger price, required for conditional orders
+            // 'trigger_by': 'LastPrice', // IndexPrice, MarkPrice
+        };
+        let priceIsRequired = false;
+        if (type === 'limit') {
+            priceIsRequired = true;
+        }
+        if (priceIsRequired) {
+            if (price !== undefined) {
+                request['price'] = this.priceToPrecision (symbol, price);
+            } else {
+                throw new ArgumentsRequired (this.id + ' createOrder requires a price argument for a ' + type + ' order');
+            }
+        }
+        const stopPx = this.safeValue (params, 'stop_px');
+        const basePrice = this.safeValue (params, 'base_price');
+        let method = 'privatePostOrderCreate';
+        if (stopPx !== undefined) {
+            if (basePrice === undefined) {
+                throw new ArgumentsRequired (this.id + ' createOrder requires both the stop_px and base_price params for a conditional ' + type + ' order');
+            } else {
+                method = 'openapiPostStopOrderCreate';
+                request['stop_px'] = this.priceToPrecision (symbol, stopPx);
+                request['base_price'] = this.priceToPrecision (symbol, basePrice);
+                params = this.omit (params, [ 'stop_px', 'base_price' ]);
+            }
+        } else if (basePrice !== undefined) {
+            throw new ArgumentsRequired (this.id + ' createOrder requires both the stop_px and base_price params for a conditional ' + type + ' order');
+        }
+        const response = await this[method] (this.extend (request, params));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "OK",
+        //         "ext_code": "",
+        //         "ext_info": "",
+        //         "result": {
+        //             "user_id": 1,
+        //             "order_id": "335fd977-e5a5-4781-b6d0-c772d5bfb95b",
+        //             "symbol": "BTCUSD",
+        //             "side": "Buy",
+        //             "order_type": "Limit",
+        //             "price": 8800,
+        //             "qty": 1,
+        //             "time_in_force": "GoodTillCancel",
+        //             "order_status": "Created",
+        //             "last_exec_time": 0,
+        //             "last_exec_price": 0,
+        //             "leaves_qty": 1,
+        //             "cum_exec_qty": 0,
+        //             "cum_exec_value": 0,
+        //             "cum_exec_fee": 0,
+        //             "reject_reason": "",
+        //             "order_link_id": "",
+        //             "created_at": "2019-11-30T11:03:43.452Z",
+        //             "updated_at": "2019-11-30T11:03:43.455Z"
+        //         },
+        //         "time_now": "1575111823.458705",
+        //         "rate_limit_status": 98,
+        //         "rate_limit_reset_ms": 1580885703683,
+        //         "rate_limit": 100
+        //     }
+        //
+        // conditional orders
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": {
+        //             "user_id": 1,
+        //             "symbol": "BTCUSD",
+        //             "side": "Buy",
+        //             "order_type": "Limit",
+        //             "price": 8000,
+        //             "qty": 1,
+        //             "time_in_force": "GoodTillCancel",
+        //             "stop_order_type": "Stop",
+        //             "trigger_by": "LastPrice",
+        //             "base_price": 7000,
+        //             "order_status": "Untriggered",
+        //             "ext_fields": {
+        //                 "stop_order_type": "Stop",
+        //                 "trigger_by": "LastPrice",
+        //                 "base_price": 7000,
+        //                 "expected_direction": "Rising",
+        //                 "trigger_price": 7500,
+        //                 "op_from": "api",
+        //                 "remark": "127.0.01",
+        //                 "o_req_num": 0
+        //             },
+        //             "leaves_qty": 1,
+        //             "leaves_value": 0.00013333,
+        //             "reject_reason": null,
+        //             "cross_seq": -1,
+        //             "created_at": "2019-12-27T12:48:24.000Z",
+        //             "updated_at": "2019-12-27T12:48:24.000Z",
+        //             "stop_px": 7500,
+        //             "stop_order_id": "a85cd1c0-a9a4-49d3-a1bd-bab5ebe946d5"
+        //         },
+        //         "ext_info": null,
+        //         "time_now": "1577450904.327654",
+        //         "rate_limit_status": 99,
+        //         "rate_limit_reset_ms": 1577450904335,
+        //         "rate_limit": "100"
+        //     }
+        //
+        const result = this.safeValue (response, 'result');
+        return this.parseOrder (result, market);
+    }
+
+    async editOrder (id, symbol, type, side, amount = undefined, price = undefined, params = {}) {
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' editOrder requires an symbol argument');
+        }
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            // 'order_id': id, // only for non-conditional orders
+            'symbol': market['id'],
+            // 'p_r_qty': this.amountToPrecision (symbol, amount), // new order quantity, optional
+            // 'p_r_price' this.priceToprecision (symbol, price), // new order price, optional
+            // ----------------------------------------------------------------
+            // conditional orders
+            // 'stop_order_id': id, // only for conditional orders
+            // 'p_r_trigger_price': 123.45, // new trigger price also known as stop_px
+        };
+        const stopOrderId = this.safeString (params, 'stop_order_id');
+        let method = 'openapiPostOrderReplace';
+        if (stopOrderId !== undefined) {
+            method = 'openapiPostStopOrderReplace';
+            request['stop_order_id'] = stopOrderId;
+            params = this.omit (params, [ 'stop_order_id' ]);
+        } else {
+            request['order_id'] = id;
+        }
+        if (amount !== undefined) {
+            request['p_r_qty'] = this.amountToPrecision (symbol, amount);
+        }
+        if (price !== undefined) {
+            request['p_r_price'] = this.priceToPrecision (symbol, price);
+        }
+        const response = await this[method] (this.extend (request, params));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": { "order_id": "efa44157-c355-4a98-b6d6-1d846a936b93" },
+        //         "time_now": "1539778407.210858",
+        //         "rate_limit_status": 99, // remaining number of accesses in one minute
+        //         "rate_limit_reset_ms": 1580885703683,
+        //         "rate_limit": 100
+        //     }
+        //
+        // conditional orders
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": { "stop_order_id": "378a1bbc-a93a-4e75-87f4-502ea754ba36" },
+        //         "ext_info": null,
+        //         "time_now": "1577475760.604942",
+        //         "rate_limit_status": 96,
+        //         "rate_limit_reset_ms": 1577475760612,
+        //         "rate_limit": "100"
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        return {
+            'info': response,
+            'id': this.safeString2 (result, 'order_id', 'stop_order_id'),
+            'order_id': this.safeString (result, 'order_id'),
+            'stop_order_id': this.safeString (result, 'stop_order_id'),
+        };
+    }
+
+    async cancelOrder (id, symbol = undefined, params = {}) {
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchOrder requires a symbol argument');
+        }
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+            // 'order_link_id': 'string', // one of order_id, stop_order_id or order_link_id is required
+            // regular orders ---------------------------------------------
+            // 'order_id': id, // one of order_id or order_link_id is required for regular orders
+            // conditional orders ---------------------------------------------
+            // 'stop_order_id': id, // one of stop_order_id or order_link_id is required for conditional orders
+        };
+        let method = 'privatePostOrderCancel';
+        const stopOrderId = this.safeString (params, 'stop_order_id');
+        if (stopOrderId === undefined) {
+            const orderLinkId = this.safeString (params, 'order_link_id');
+            if (orderLinkId === undefined) {
+                request['order_id'] = id;
+            }
+        } else {
+            method = 'openapiPostStopOrderCancel';
+        }
+        const response = await this[method] (this.extend (request, params));
+        const result = this.safeValue (response, 'result', {});
+        return this.parseOrder (result, market);
+    }
+
+    async cancelAllOrders (symbol = undefined, params = {}) {
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' cancelAllOrders requires a symbol argument');
+        }
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'symbol': market['id'],
+        };
+        const options = this.safeValue (this.options, 'cancelAllOrders');
+        const method = this.safeString (options, 'method', 'privatePostOrderCancelAll');
+        const response = await this[method] (this.extend (request, params));
+        const result = this.safeValue (response, 'result', []);
+        return this.parseOrders (result, market);
+    }
+
+    async fetchOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            // 'order_id': 'string'
+            // 'order_link_id': 'string', // unique client order id, max 36 characters
+            // 'symbol': market['id'], // default BTCUSD
+            // 'order': 'desc', // asc
+            // 'page': 1,
+            // 'limit': 20, // max 50
+            // 'order_status': 'Created,New'
+            // conditional orders ---------------------------------------------
+            // 'stop_order_id': 'string',
+            // 'stop_order_status': 'Untriggered',
+        };
+        let market = undefined;
+        if (symbol !== undefined) {
+            market = this.market (symbol);
+            request['symbol'] = market['id'];
+        }
+        if (limit !== undefined) {
+            request['limit'] = limit;
+        }
+        const options = this.safeValue (this.options, 'fetchOrders', {});
+        let defaultMethod = 'openapiGetOrderList';
+        let query = params;
+        if (('stop_order_id' in params) || ('stop_order_status' in params)) {
+            let stopOrderStatus = this.safeValue (params, 'stopOrderStatus');
+            if (stopOrderStatus !== undefined) {
+                if (Array.isArray (stopOrderStatus)) {
+                    stopOrderStatus = stopOrderStatus.join (',');
+                }
+                request['stop_order_status'] = stopOrderStatus;
+                query = this.omit (params, 'stop_order_status');
+            }
+            defaultMethod = 'openapiGetStopOrderList';
+        }
+        const method = this.safeString (options, 'method', defaultMethod);
+        const response = await this[method] (this.extend (request, query));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": {
+        //             "current_page": 1,
+        //             "last_page": 6,
+        //             "data": [
+        //                 {
+        //                     "user_id": 1,
+        //                     "symbol": "BTCUSD",
+        //                     "side": "Sell",
+        //                     "order_type": "Market",
+        //                     "price": 7074,
+        //                     "qty": 2,
+        //                     "time_in_force": "ImmediateOrCancel",
+        //                     "order_status": "Filled",
+        //                     "ext_fields": {
+        //                         "close_on_trigger": true,
+        //                         "orig_order_type": "BLimit",
+        //                         "prior_x_req_price": 5898.5,
+        //                         "op_from": "pc",
+        //                         "remark": "127.0.0.1",
+        //                         "o_req_num": -34799032763,
+        //                         "xreq_type": "x_create"
+        //                     },
+        //                     "last_exec_time": "1577448481.696421",
+        //                     "last_exec_price": 7070.5,
+        //                     "leaves_qty": 0,
+        //                     "leaves_value": 0,
+        //                     "cum_exec_qty": 2,
+        //                     "cum_exec_value": 0.00028283,
+        //                     "cum_exec_fee": 0.00002,
+        //                     "reject_reason": "NoError",
+        //                     "order_link_id": "",
+        //                     "created_at": "2019-12-27T12:08:01.000Z",
+        //                     "updated_at": "2019-12-27T12:08:01.000Z",
+        //                     "order_id": "f185806b-b801-40ff-adec-52289370ed62"
+        //                 }
+        //             ]
+        //         },
+        //         "ext_info": null,
+        //         "time_now": "1577448922.437871",
+        //         "rate_limit_status": 98,
+        //         "rate_limit_reset_ms": 1580885703683,
+        //         "rate_limit": 100
+        //     }
+        //
+        // conditional orders
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": {
+        //             "current_page": 1,
+        //             "last_page": 1,
+        //             "data": [
+        //                 {
+        //                     "user_id": 1,
+        //                     "stop_order_status": "Untriggered",
+        //                     "symbol": "BTCUSD",
+        //                     "side": "Buy",
+        //                     "order_type": "Limit",
+        //                     "price": 8000,
+        //                     "qty": 1,
+        //                     "time_in_force": "GoodTillCancel",
+        //                     "stop_order_type": "Stop",
+        //                     "trigger_by": "LastPrice",
+        //                     "base_price": 7000,
+        //                     "order_link_id": "",
+        //                     "created_at": "2019-12-27T12:48:24.000Z",
+        //                     "updated_at": "2019-12-27T12:48:24.000Z",
+        //                     "stop_px": 7500,
+        //                     "stop_order_id": "a85cd1c0-a9a4-49d3-a1bd-bab5ebe946d5"
+        //                 },
+        //             ]
+        //         },
+        //         "ext_info": null,
+        //         "time_now": "1577451658.755468",
+        //         "rate_limit_status": 599,
+        //         "rate_limit_reset_ms": 1577451658762,
+        //         "rate_limit": 600
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseOrders (data, market, since, limit);
+    }
+
+    async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        const defaultStatuses = [
+            'Rejected',
+            'Filled',
+            'Cancelled',
+            // conditional orders
+            // 'Active',
+            // 'Triggered',
+            // 'Cancelled',
+            // 'Rejected',
+            // 'Deactivated',
+        ];
+        const options = this.safeValue (this.options, 'fetchClosedOrders', {});
+        let status = this.safeValue (options, 'order_status', defaultStatuses);
+        if (Array.isArray (status)) {
+            status = status.join (',');
+        }
+        const request = {};
+        const stopOrderStatus = this.safeValue (params, 'stop_order_status');
+        if (stopOrderStatus === undefined) {
+            request['order_status'] = status;
+        } else {
+            request['stop_order_status'] = stopOrderStatus;
+        }
+        return await this.fetchOrders (symbol, since, limit, this.extend (request, params));
+    }
+
+    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        const defaultStatuses = [
+            'Created',
+            'New',
+            'PartiallyFilled',
+            'PendingCancel',
+            // conditional orders
+            // 'Untriggered',
+        ];
+        const options = this.safeValue (this.options, 'fetchOpenOrders', {});
+        let status = this.safeValue (options, 'order_status', defaultStatuses);
+        if (Array.isArray (status)) {
+            status = status.join (',');
+        }
+        const request = {};
+        const stopOrderStatus = this.safeValue (params, 'stop_order_status');
+        if (stopOrderStatus === undefined) {
+            request['order_status'] = status;
+        } else {
+            request['stop_order_status'] = stopOrderStatus;
+        }
+        return await this.fetchOrders (symbol, since, limit, this.extend (request, params));
+    }
+
+    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        const request = {
+            'order_id': id,
+        };
+        return await this.fetchMyTrades (symbol, since, limit, this.extend (request, params));
+    }
+
+    async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            // 'order_id': 'f185806b-b801-40ff-adec-52289370ed62', // if not provided will return user's trading records
+            // 'symbol': market['id'],
+            // 'start_time': parseInt (since / 1000),
+            // 'page': 1,
+            // 'limit' 20, // max 50
+        };
+        let market = undefined;
+        if (symbol === undefined) {
+            const orderId = this.safeString (params, 'order_id');
+            if (orderId === undefined) {
+                throw new ArgumentsRequired (this.id + ' fetchMyTrades requires a symbol argument or an order_id param');
+            } else {
+                request['order_id'] = orderId;
+                params = this.omit (params, 'order_id');
+            }
+        } else {
+            market = this.market (symbol);
+            request['symbol'] = market['id'];
+        }
+        if (since !== undefined) {
+            request['start_time'] = parseInt (since / 1000);
+        }
+        if (limit !== undefined) {
+            request['limit'] = limit; // default 20, max 50
+        }
+        const response = await this.privateGetExecutionList (this.extend (request, params));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "OK",
+        //         "ext_code": "",
+        //         "ext_info": "",
+        //         "result": {
+        //             "order_id": "Abandoned!!", // Abandoned!!
+        //             "trade_list": [
+        //                 {
+        //                     "closed_size": 0,
+        //                     "cross_seq": 277136382,
+        //                     "exec_fee": "0.0000001",
+        //                     "exec_id": "256e5ef8-abfe-5772-971b-f944e15e0d68",
+        //                     "exec_price": "8178.5",
+        //                     "exec_qty": 1,
+        //                     "exec_time": "1571676941.70682",
+        //                     "exec_type": "Trade", //Exec Type Enum
+        //                     "exec_value": "0.00012227",
+        //                     "fee_rate": "0.00075",
+        //                     "last_liquidity_ind": "RemovedLiquidity", //Liquidity Enum
+        //                     "leaves_qty": 0,
+        //                     "nth_fill": 2,
+        //                     "order_id": "7ad50cb1-9ad0-4f74-804b-d82a516e1029",
+        //                     "order_link_id": "",
+        //                     "order_price": "8178",
+        //                     "order_qty": 1,
+        //                     "order_type": "Market", //Order Type Enum
+        //                     "side": "Buy", //Side Enum
+        //                     "symbol": "BTCUSD", //Symbol Enum
+        //                     "user_id": 1
+        //                 }
+        //             ]
+        //         },
+        //         "time_now": "1577483699.281488",
+        //         "rate_limit_status": 118,
+        //         "rate_limit_reset_ms": 1577483699244737,
+        //         "rate_limit": 120
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const trades = this.safeValue (result, 'trade_list', []);
+        return this.parseTrades (trades, market, since, limit);
+    }
+
+    async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
+        if (code === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchWithdrawals() requires a currency code argument');
+        }
+        await this.loadMarkets ();
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        if (limit !== undefined) {
+            request['count'] = limit;
+        }
+        const response = await this.privateGetGetDeposits (this.extend (request, params));
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 5611,
+        //         "result": {
+        //             "count": 1,
+        //             "data": [
+        //                 {
+        //                     "address": "2N35qDKDY22zmJq9eSyiAerMD4enJ1xx6ax",
+        //                     "amount": 5,
+        //                     "currency": "BTC",
+        //                     "received_timestamp": 1549295017670,
+        //                     "state": "completed",
+        //                     "transaction_id": "230669110fdaf0a0dbcdc079b6b8b43d5af29cc73683835b9bc6b3406c065fda",
+        //                     "updated_timestamp": 1549295130159
+        //                 }
+        //             ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseTransactions (data, currency, since, limit, params);
+    }
+
+    async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            // 'coin': currency['id'],
+            // 'start_date': this.iso8601 (since),
+            // 'end_date': this.iso8601 (till),
+            // 'status': 'Pending', // ToBeConfirmed, UnderReview, Pending, Success, CancelByUser, Reject, Expire
+            // 'page': 1,
+            // 'limit': 20, // max 50
+        };
+        let currency = undefined;
+        if (code !== undefined) {
+            currency = this.currency (code);
+            request['coin'] = currency['id'];
+        }
+        if (since !== undefined) {
+            request['start_date'] = this.iso8601 (since);
+        }
+        if (limit !== undefined) {
+            request['limit'] = limit;
+        }
+        const response = await this.openapiGetWalletWithdrawList (this.extend (request, params));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": {
+        //             "data": [
+        //                 {
+        //                     "id": 137,
+        //                     "user_id": 1,
+        //                     "coin": "XRP", // Coin Enum
+        //                     "status": "Pending", // Withdraw Status Enum
+        //                     "amount": "20.00000000",
+        //                     "fee": "0.25000000",
+        //                     "address": "rH7H595XYEVTEHU2FySYsWnmfACBnZS9zM",
+        //                     "tx_id": "",
+        //                     "submited_at": "2019-06-11T02:20:24.000Z",
+        //                     "updated_at": "2019-06-11T02:20:24.000Z"
+        //                 },
+        //             ],
+        //             "current_page": 1,
+        //             "last_page": 1
+        //         },
+        //         "ext_info": null,
+        //         "time_now": "1577482295.125488",
+        //         "rate_limit_status": 119,
+        //         "rate_limit_reset_ms": 1577482295132,
+        //         "rate_limit": 120
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseTransactions (data, currency, since, limit, params);
+    }
+
+    parseTransactionStatus (status) {
+        const statuses = {
+            'ToBeConfirmed': 'pending',
+            'UnderReview': 'pending',
+            'Pending': 'pending',
+            'Success': 'ok',
+            'CancelByUser': 'canceled',
+            'Reject': 'rejected',
+            'Expire': 'expired',
+        };
+        return this.safeString (statuses, status, status);
+    }
+
+    parseTransaction (transaction, currency = undefined) {
+        //
+        // fetchWithdrawals
+        //
+        //     {
+        //         "id": 137,
+        //         "user_id": 1,
+        //         "coin": "XRP", // Coin Enum
+        //         "status": "Pending", // Withdraw Status Enum
+        //         "amount": "20.00000000",
+        //         "fee": "0.25000000",
+        //         "address": "rH7H595XYEVTEHU2FySYsWnmfACBnZS9zM",
+        //         "tx_id": "",
+        //         "submited_at": "2019-06-11T02:20:24.000Z",
+        //         "updated_at": "2019-06-11T02:20:24.000Z"
+        //     }
+        //
+        const currencyId = this.safeString (transaction, 'coin');
+        const code = this.safeCurrencyCode (currencyId, currency);
+        const timestamp = this.parse8601 (this.safeString (transaction, 'submited_at'));
+        const updated = this.parse8601 (this.safeString (transaction, 'updated_at'));
+        const status = this.parseTransactionStatus (this.safeString (transaction, 'status'));
+        const address = this.safeString (transaction, 'address');
+        const feeCost = this.safeFloat (transaction, 'fee');
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            fee = {
+                'cost': feeCost,
+                'currency': code,
+            };
+        }
+        return {
+            'info': transaction,
+            'id': this.safeString (transaction, 'id'),
+            'txid': this.safeString (transaction, 'tx_id'),
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'address': address,
+            'addressTo': undefined,
+            'addressFrom': undefined,
+            'tag': undefined,
+            'tagTo': undefined,
+            'tagFrom': undefined,
+            'type': 'withdrawal',
+            'amount': this.safeFloat (transaction, 'amount'),
+            'currency': code,
+            'status': status,
+            'updated': updated,
+            'fee': fee,
+        };
+    }
+
+    async fetchLedger (code = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            // 'coin': currency['id'],
+            // 'currency': currency['id'], // alias
+            // 'start_date': this.iso8601 (since),
+            // 'end_date': this.iso8601 (till),
+            // 'wallet_fund_type': 'Deposit', // Withdraw, RealisedPNL, Commission, Refund, Prize, ExchangeOrderWithdraw, ExchangeOrderDeposit
+            // 'page': 1,
+            // 'limit': 20, // max 50
+        };
+        let currency = undefined;
+        if (code !== undefined) {
+            currency = this.currency (code);
+            request['coin'] = currency['id'];
+        }
+        if (since !== undefined) {
+            request['start_date'] = this.iso8601 (since);
+        }
+        if (limit !== undefined) {
+            request['limit'] = limit;
+        }
+        const response = await this.openapiGetWalletFundRecords (this.extend (request, params));
+        //
+        //     {
+        //         "ret_code": 0,
+        //         "ret_msg": "ok",
+        //         "ext_code": "",
+        //         "result": {
+        //             "data": [
+        //                 {
+        //                     "id": 234467,
+        //                     "user_id": 1,
+        //                     "coin": "BTC",
+        //                     "wallet_id": 27913,
+        //                     "type": "Realized P&L",
+        //                     "amount": "-0.00000006",
+        //                     "tx_id": "",
+        //                     "address": "BTCUSD",
+        //                     "wallet_balance": "0.03000330",
+        //                     "exec_time": "2019-12-09T00:00:25.000Z",
+        //                     "cross_seq": 0
+        //                 }
+        //             ]
+        //         },
+        //         "ext_info": null,
+        //         "time_now": "1577481867.115552",
+        //         "rate_limit_status": 119,
+        //         "rate_limit_reset_ms": 1577481867122,
+        //         "rate_limit": 120
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseLedger (data, currency, since, limit);
+    }
+
+    parseLedgerEntry (item, currency = undefined) {
+        //
+        //     {
+        //         "id": 234467,
+        //         "user_id": 1,
+        //         "coin": "BTC",
+        //         "wallet_id": 27913,
+        //         "type": "Realized P&L",
+        //         "amount": "-0.00000006",
+        //         "tx_id": "",
+        //         "address": "BTCUSD",
+        //         "wallet_balance": "0.03000330",
+        //         "exec_time": "2019-12-09T00:00:25.000Z",
+        //         "cross_seq": 0
+        //     }
+        //
+        const currencyId = this.safeString (item, 'coin');
+        const code = this.safeCurrencyCode (currencyId, currency);
+        const amount = this.safeFloat (item, 'amount');
+        const after = this.safeFloat (item, 'wallet_balance');
+        const direction = (amount < 0) ? 'out' : 'in';
+        let before = undefined;
+        if (after !== undefined && amount !== undefined) {
+            const difference = (direction === 'out') ? amount : -amount;
+            before = this.sum (after, difference);
+        }
+        const timestamp = this.parse8601 (this.safeString (item, 'exec_time'));
+        const type = this.parseLedgerEntryType (this.safeString (item, 'type'));
+        const id = this.safeString (item, 'id');
+        const referenceId = this.safeString (item, 'tx_id');
+        return {
+            'id': id,
+            'currency': code,
+            'account': this.safeString (item, 'wallet_id'),
+            'referenceAccount': undefined,
+            'referenceId': referenceId,
+            'status': undefined,
+            'amount': amount,
+            'before': before,
+            'after': after,
+            'fee': undefined,
+            'direction': direction,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'type': type,
+            'info': item,
+        };
+    }
+
+    parseLedgerEntryType (type) {
+        const types = {
+            'Deposit': 'transaction',
+            'Withdraw': 'transaction',
+            'RealisedPNL': 'trade',
+            'Commission': 'fee',
+            'Refund': 'cashback',
+            'Prize': 'prize', // ?
+            'ExchangeOrderWithdraw': 'transaction',
+            'ExchangeOrderDeposit': 'transaction',
+        };
+        return this.safeString (types, type, type);
+    }
+
+    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
+        let url = this.urls['api'];
+        let request = path;
+        // public v2
+        if (api === 'public') {
+            request = '/' + this.version + '/' + api + '/' + request;
+            if (Object.keys (params).length) {
+                request += '?' + this.rawencode (params);
+            }
+        } else {
+            this.checkRequiredCredentials ();
+            if (api === 'openapi') {
+                request = '/open-api/' + request;
+            } else if (api === 'private') {
+                // private v2
+                request = '/' + this.version + '/' + api + '/' + request;
+            } else {
+                // position, user
+                request = '/' + api + '/' + request;
+            }
+            const timestamp = this.nonce ();
+            const query = this.extend (params, {
+                'api_key': this.apiKey,
+                'recvWindow': this.options['recvWindow'],
+                'timestamp': timestamp,
+            });
+            const auth = this.rawencode (this.keysort (query));
+            const signature = this.hmac (this.encode (auth), this.encode (this.secret));
+            if (method === 'POST') {
+                body = this.json (this.extend (query, {
+                    'sign': signature,
+                }));
+                headers = {
+                    'Content-Type': 'application/json',
+                };
+            } else {
+                request += '?' + auth + '&sign=' + signature;
+            }
+        }
+        url += request;
+        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
+    }
+
+    handleErrors (httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody) {
+        if (!response) {
+            return; // fallback to default error handler
+        }
+        //
+        //     {
+        //         ret_code: 10001,
+        //         ret_msg: 'ReadMapCB: expect { or n, but found \u0000, error ' +
+        //         'found in #0 byte of ...||..., bigger context ' +
+        //         '...||...',
+        //         ext_code: '',
+        //         ext_info: '',
+        //         result: null,
+        //         time_now: '1583934106.590436'
+        //     }
+        //
+        const errorCode = this.safeValue (response, 'ret_code');
+        if (errorCode !== 0) {
+            const feedback = this.id + ' ' + body;
+            this.throwExactlyMatchedException (this.exceptions['exact'], errorCode, feedback);
+            this.throwBroadlyMatchedException (this.exceptions['broad'], body, feedback);
+            throw new ExchangeError (feedback); // unknown message
+        }
+    }
+};
diff --git a/WebServer/node_modules/ccxt/js/bytetrade.js b/BackendServers/node_modules/ccxt/js/bytetrade.js
similarity index 96%
rename from WebServer/node_modules/ccxt/js/bytetrade.js
rename to BackendServers/node_modules/ccxt/js/bytetrade.js
index ba9ba74d0..b3e408002 100644
--- a/WebServer/node_modules/ccxt/js/bytetrade.js
+++ b/BackendServers/node_modules/ccxt/js/bytetrade.js
@@ -47,10 +47,16 @@ module.exports = class bytetrade extends Exchange {
                 '1M': '1M',
             },
             'urls': {
-                'test': 'https://api-v2-test.bytetrade.com',
+                'test': {
+                    'market': 'https://api-v2-test.byte-trade.com',
+                    'public': 'https://api-v2-test.byte-trade.com',
+                },
                 'logo': 'https://user-images.githubusercontent.com/1294454/67288762-2f04a600-f4e6-11e9-9fd6-c60641919491.jpg',
-                'api': 'https://api-v2.bytetrade.com',
-                'www': 'https://www.bytetrade.com',
+                'api': {
+                    'market': 'https://api-v2.bytetrade.com',
+                    'public': 'https://api-v2.bytetrade.com',
+                },
+                'www': 'https://www.byte-trade.com',
                 'doc': 'https://github.com/Bytetrade/bytetrade-official-api-docs/wiki',
             },
             'api': {
@@ -117,7 +123,7 @@ module.exports = class bytetrade extends Exchange {
                 code = this.safeString (currency, 'name');
             }
             const name = this.safeString (currency, 'fullname');
-            // in bytetrade.com DEX, request https://api-v2.bytetrade.com/currencies will return currencies,
+            // in byte-trade.com DEX, request https://api-v2.byte-trade.com/currencies will return currencies,
             // the api doc is https://github.com/Bytetrade/bytetrade-official-api-docs/wiki/rest-api#get-currencies-get-currencys-supported-in-bytetradecom
             // we can see the coin name is none-unique in the result, the coin which code is 18 is the CyberMiles ERC20, and the coin which code is 35 is the CyberMiles main chain, but their name is same.
             // that is because bytetrade is a DEX, supports people create coin with the same name, but the id(code) of coin is unique, so we should use the id or name and id as the identity of coin.
@@ -541,6 +547,7 @@ module.exports = class bytetrade extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': datetime,
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -555,6 +562,7 @@ module.exports = class bytetrade extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
@@ -593,7 +601,8 @@ module.exports = class bytetrade extends Exchange {
         datetime = datetime.split ('.')[0];
         let expirationDatetime = this.iso8601 (expiration);
         expirationDatetime = expirationDatetime.split ('.')[0];
-        const chainName = 'Sagittarius';
+        const defaultDappId = 'Sagittarius';
+        const dappId = this.safeString (params, 'dappId', defaultDappId);
         const defaultFee = this.safeString (this.options, 'fee', '300000000000000');
         const fee = this.safeString (params, 'fee', defaultFee);
         const eightBytes = this.integerPow ('2', '64');
@@ -624,8 +633,8 @@ module.exports = class bytetrade extends Exchange {
             this.numberToLE (parseInt (baseId), 4),
             this.numberToLE (0, 1),
             this.numberToLE (1, 1),
-            this.numberToLE (chainName.length, 1),
-            this.stringToBinary (this.encode (chainName)),
+            this.numberToLE (dappId.length, 1),
+            this.stringToBinary (this.encode (dappId)),
             this.numberToLE (0, 1),
         ];
         const txByteStringArray = [
@@ -654,8 +663,8 @@ module.exports = class bytetrade extends Exchange {
             this.numberToLE (parseInt (baseId), 4),
             this.numberToLE (0, 1),
             this.numberToLE (1, 1),
-            this.numberToLE (chainName.length, 1),
-            this.stringToBinary (this.encode (chainName)),
+            this.numberToLE (dappId.length, 1),
+            this.stringToBinary (this.encode (dappId)),
             this.numberToLE (0, 1),
         ];
         const txbytestring = this.binaryConcatArray (txByteStringArray);
@@ -698,7 +707,7 @@ module.exports = class bytetrade extends Exchange {
                 ],
             ],
             'validate_type': 0,
-            'dapp': 'Sagittarius',
+            'dapp': dappId,
             'signatures': [
                 mySignature,
             ],
@@ -727,6 +736,8 @@ module.exports = class bytetrade extends Exchange {
             'cost': undefined,
             'trades': undefined,
             'fee': undefined,
+            'clientOrderId': undefined,
+            'average': undefined,
         };
     }
 
@@ -827,7 +838,8 @@ module.exports = class bytetrade extends Exchange {
         datetime = datetime.split ('.')[0];
         let expirationDatetime = this.iso8601 (expiration);
         expirationDatetime = expirationDatetime.split ('.')[0];
-        const chainName = 'Sagittarius';
+        const defaultDappId = 'Sagittarius';
+        const dappId = this.safeString (params, 'dappId', defaultDappId);
         const byteStringArray = [
             this.numberToBE (1, 32),
             this.numberToLE (Math.floor (now / 1000), 4),
@@ -846,8 +858,8 @@ module.exports = class bytetrade extends Exchange {
             this.numberToLE (parseInt (baseId), 4),
             this.numberToLE (0, 1),
             this.numberToLE (1, 1),
-            this.numberToLE (chainName.length, 1),
-            this.stringToBinary (this.encode (chainName)),
+            this.numberToLE (dappId.length, 1),
+            this.stringToBinary (this.encode (dappId)),
             this.numberToLE (0, 1),
         ];
         const bytestring = this.binaryConcatArray (byteStringArray);
@@ -873,7 +885,7 @@ module.exports = class bytetrade extends Exchange {
                 ],
             ],
             'validate_type': 0,
-            'dapp': 'Sagittarius',
+            'dapp': dappId,
             'signatures': [
                 mySignature,
             ],
@@ -902,6 +914,8 @@ module.exports = class bytetrade extends Exchange {
             'cost': undefined,
             'trades': undefined,
             'fee': undefined,
+            'clientOrderId': undefined,
+            'average': undefined,
         };
     }
 
@@ -922,7 +936,8 @@ module.exports = class bytetrade extends Exchange {
         let expirationDatetime = this.iso8601 (expiration);
         expirationDatetime = expirationDatetime.split ('.')[0];
         const feeAmount = '300000000000000';
-        const chainName = 'Sagittarius';
+        const defaultDappId = 'Sagittarius';
+        const dappId = this.safeString (params, 'dappId', defaultDappId);
         const eightBytes = this.integerPow ('2', '64');
         const byteStringArray = [
             this.numberToBE (1, 32),
@@ -945,8 +960,8 @@ module.exports = class bytetrade extends Exchange {
             this.stringToBinary (this.encode (message)),
             this.numberToLE (0, 1),
             this.numberToLE (1, 1),
-            this.numberToLE (chainName.length, 1),
-            this.stringToBinary (this.encode (chainName)),
+            this.numberToLE (dappId.length, 1),
+            this.stringToBinary (this.encode (dappId)),
             this.numberToLE (0, 1),
         ];
         const bytestring = this.binaryConcatArray (byteStringArray);
@@ -972,7 +987,7 @@ module.exports = class bytetrade extends Exchange {
                 ],
             ],
             'validate_type': 0,
-            'dapp': 'Sagittarius',
+            'dapp': dappId,
             'signatures': [
                 mySignature,
             ],
@@ -1005,6 +1020,9 @@ module.exports = class bytetrade extends Exchange {
             'remaining': undefined,
             'cost': undefined,
             'fee': undefined,
+            'clientOrderId': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
@@ -1184,7 +1202,8 @@ module.exports = class bytetrade extends Exchange {
         datetime = datetime.split ('.')[0];
         let expirationDatetime = this.iso8601 (expiration);
         expirationDatetime = expirationDatetime.split ('.')[0];
-        const chainName = 'Sagittarius';
+        const defaultDappId = 'Sagittarius';
+        const dappId = this.safeString (params, 'dappId', defaultDappId);
         const feeAmount = '300000000000000';
         const currency = this.currency (code);
         const coinId = currency['id'];
@@ -1216,8 +1235,8 @@ module.exports = class bytetrade extends Exchange {
                 this.numberToLE (this.integerModulo (assetFee, eightBytes), 8),
                 this.numberToLE (0, 1),
                 this.numberToLE (1, 1),
-                this.numberToLE (chainName.length, 1),
-                this.stringToBinary (this.encode (chainName)),
+                this.numberToLE (dappId.length, 1),
+                this.stringToBinary (this.encode (dappId)),
                 this.numberToLE (0, 1),
             ];
         } else {
@@ -1246,8 +1265,8 @@ module.exports = class bytetrade extends Exchange {
                 this.numberToLE (this.integerModulo (amountChain, eightBytes), 8),
                 this.numberToLE (0, 1),
                 this.numberToLE (1, 1),
-                this.numberToLE (chainName.length, 1),
-                this.stringToBinary (this.encode (chainName)),
+                this.numberToLE (dappId.length, 1),
+                this.stringToBinary (this.encode (dappId)),
                 this.numberToLE (0, 1),
             ];
         }
@@ -1279,7 +1298,7 @@ module.exports = class bytetrade extends Exchange {
                     ],
                 ],
                 'validate_type': 0,
-                'dapp': 'Sagittarius',
+                'dapp': dappId,
                 'signatures': [
                     mySignature,
                 ],
@@ -1316,7 +1335,7 @@ module.exports = class bytetrade extends Exchange {
                     ],
                 ],
                 'validate_type': 0,
-                'dapp': 'Sagittarius',
+                'dapp': dappId,
                 'signatures': [
                     mySignature,
                 ],
@@ -1345,7 +1364,7 @@ module.exports = class bytetrade extends Exchange {
     }
 
     sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = this.urls['api'];
+        let url = this.urls['api'][api];
         url += '/' + path;
         if (Object.keys (params).length) {
             url += '?' + this.urlencode (params);
diff --git a/WebServer/node_modules/ccxt/js/cex.js b/BackendServers/node_modules/ccxt/js/cex.js
similarity index 96%
rename from WebServer/node_modules/ccxt/js/cex.js
rename to BackendServers/node_modules/ccxt/js/cex.js
index 86ec70526..dd8ab9391 100644
--- a/WebServer/node_modules/ccxt/js/cex.js
+++ b/BackendServers/node_modules/ccxt/js/cex.js
@@ -354,6 +354,7 @@ module.exports = class cex extends Exchange {
                         'max': undefined,
                     },
                 },
+                'active': undefined,
             });
         }
         return result;
@@ -563,9 +564,45 @@ module.exports = class cex extends Exchange {
             request['order_type'] = type;
         }
         const response = await this.privatePostPlaceOrderPair (this.extend (request, params));
+        //
+        //     {
+        //         "id": "12978363524",
+        //         "time": 1586610022259,
+        //         "type": "buy",
+        //         "price": "0.033934",
+        //         "amount": "0.10722802",
+        //         "pending": "0.10722802",
+        //         "complete": false
+        //     }
+        //
+        const placedAmount = this.safeFloat (response, 'amount');
+        const remaining = this.safeFloat (response, 'pending');
+        const timestamp = this.safeValue (response, 'time');
+        const complete = this.safeValue (response, 'complete');
+        const status = complete ? 'closed' : 'open';
+        let filled = undefined;
+        if ((placedAmount !== undefined) && (remaining !== undefined)) {
+            filled = Math.max (placedAmount - remaining, 0);
+        }
         return {
+            'id': this.safeString (response, 'id'),
             'info': response,
-            'id': response['id'],
+            'clientOrderId': undefined,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'lastTradeTimestamp': undefined,
+            'type': type,
+            'side': this.safeString (response, 'type'),
+            'symbol': symbol,
+            'status': status,
+            'price': this.safeFloat (response, 'price'),
+            'amount': placedAmount,
+            'cost': undefined,
+            'average': undefined,
+            'remaining': remaining,
+            'filled': filled,
+            'fee': undefined,
+            'trades': undefined,
         };
     }
 
@@ -805,11 +842,14 @@ module.exports = class cex extends Exchange {
                         'currency': market['quote'],
                     },
                     'info': item,
+                    'type': undefined,
+                    'takerOrMaker': undefined,
                 });
             }
         }
         return {
             'id': orderId,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -825,6 +865,7 @@ module.exports = class cex extends Exchange {
             'trades': trades,
             'fee': fee,
             'info': order,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/chilebit.js b/BackendServers/node_modules/ccxt/js/chilebit.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/chilebit.js
rename to BackendServers/node_modules/ccxt/js/chilebit.js
diff --git a/WebServer/node_modules/ccxt/js/coinbase.js b/BackendServers/node_modules/ccxt/js/coinbase.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/coinbase.js
rename to BackendServers/node_modules/ccxt/js/coinbase.js
diff --git a/WebServer/node_modules/ccxt/js/coinbaseprime.js b/BackendServers/node_modules/ccxt/js/coinbaseprime.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/coinbaseprime.js
rename to BackendServers/node_modules/ccxt/js/coinbaseprime.js
diff --git a/WebServer/node_modules/ccxt/js/coinbasepro.js b/BackendServers/node_modules/ccxt/js/coinbasepro.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/coinbasepro.js
rename to BackendServers/node_modules/ccxt/js/coinbasepro.js
index e6fae7f09..7c7db7483 100644
--- a/WebServer/node_modules/ccxt/js/coinbasepro.js
+++ b/BackendServers/node_modules/ccxt/js/coinbasepro.js
@@ -582,6 +582,7 @@ module.exports = class coinbasepro extends Exchange {
         const side = this.safeString (order, 'side');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -596,6 +597,8 @@ module.exports = class coinbasepro extends Exchange {
             'filled': filled,
             'remaining': remaining,
             'fee': fee,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/coincheck.js b/BackendServers/node_modules/ccxt/js/coincheck.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/coincheck.js
rename to BackendServers/node_modules/ccxt/js/coincheck.js
index 5b9bfdc8f..34f00e870 100644
--- a/WebServer/node_modules/ccxt/js/coincheck.js
+++ b/BackendServers/node_modules/ccxt/js/coincheck.js
@@ -192,6 +192,7 @@ module.exports = class coincheck extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -206,6 +207,8 @@ module.exports = class coincheck extends Exchange {
             'cost': cost,
             'fee': undefined,
             'info': order,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/coinegg.js b/BackendServers/node_modules/ccxt/js/coinegg.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/coinegg.js
rename to BackendServers/node_modules/ccxt/js/coinegg.js
index fd7a16cc9..6bb1fbbdb 100644
--- a/WebServer/node_modules/ccxt/js/coinegg.js
+++ b/BackendServers/node_modules/ccxt/js/coinegg.js
@@ -352,6 +352,7 @@ module.exports = class coinegg extends Exchange {
         const id = this.safeString (order, 'id');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -367,6 +368,7 @@ module.exports = class coinegg extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': info,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/coinex.js b/BackendServers/node_modules/ccxt/js/coinex.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/coinex.js
rename to BackendServers/node_modules/ccxt/js/coinex.js
index 9d13942c6..410b3a864 100644
--- a/WebServer/node_modules/ccxt/js/coinex.js
+++ b/BackendServers/node_modules/ccxt/js/coinex.js
@@ -464,6 +464,7 @@ module.exports = class coinex extends Exchange {
         const side = this.safeString (order, 'type');
         return {
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -724,7 +725,7 @@ module.exports = class coinex extends Exchange {
         const code = this.safeCurrencyCode (currencyId, currency);
         const timestamp = this.safeTimestamp (transaction, 'create_time');
         const type = ('coin_withdraw_id' in transaction) ? 'withdraw' : 'deposit';
-        const status = this.parseTransactionStatus (this.safeString (transaction, 'status'), type);
+        const status = this.parseTransactionStatus (this.safeString (transaction, 'status'));
         const amount = this.safeFloat (transaction, 'amount');
         let feeCost = this.safeFloat (transaction, 'tx_fee');
         if (type === 'deposit') {
diff --git a/WebServer/node_modules/ccxt/js/coinfalcon.js b/BackendServers/node_modules/ccxt/js/coinfalcon.js
similarity index 95%
rename from WebServer/node_modules/ccxt/js/coinfalcon.js
rename to BackendServers/node_modules/ccxt/js/coinfalcon.js
index c30b05e0a..79a0ab615 100644
--- a/WebServer/node_modules/ccxt/js/coinfalcon.js
+++ b/BackendServers/node_modules/ccxt/js/coinfalcon.js
@@ -275,6 +275,23 @@ module.exports = class coinfalcon extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "id":"8bdd79f4-8414-40a2-90c3-e9f4d6d1eef4"
+        //         "market":"IOT-BTC"
+        //         "price":"0.0000003"
+        //         "size":"4.0"
+        //         "size_filled":"3.0"
+        //         "fee":"0.0075"
+        //         "fee_currency_code":"iot"
+        //         "funds":"0.0"
+        //         "status":"canceled"
+        //         "order_type":"buy"
+        //         "post_only":false
+        //         "operation_type":"market_order"
+        //         "created_at":"2018-01-12T21:14:06.747828Z"
+        //     }
+        //
         if (market === undefined) {
             const marketId = this.safeString (order, 'market');
             if (marketId in this.markets_by_id) {
@@ -308,6 +325,7 @@ module.exports = class coinfalcon extends Exchange {
         const side = this.safeString (order, 'order_type');
         return {
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'status': status,
@@ -322,6 +340,8 @@ module.exports = class coinfalcon extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': order,
+            'lastTradeTimestamp': undefined,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/coinfloor.js b/BackendServers/node_modules/ccxt/js/coinfloor.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/coinfloor.js
rename to BackendServers/node_modules/ccxt/js/coinfloor.js
index e21e3fb57..6ea4f339a 100644
--- a/WebServer/node_modules/ccxt/js/coinfloor.js
+++ b/BackendServers/node_modules/ccxt/js/coinfloor.js
@@ -59,7 +59,6 @@ module.exports = class coinfloor extends Exchange {
             'markets': {
                 'BTC/GBP': { 'id': 'XBT/GBP', 'symbol': 'BTC/GBP', 'base': 'BTC', 'quote': 'GBP', 'baseId': 'XBT', 'quoteId': 'GBP', 'precision': { 'price': 0, 'amount': 4 }},
                 'BTC/EUR': { 'id': 'XBT/EUR', 'symbol': 'BTC/EUR', 'base': 'BTC', 'quote': 'EUR', 'baseId': 'XBT', 'quoteId': 'EUR', 'precision': { 'price': 0, 'amount': 4 }},
-                'ETH/GBP': { 'id': 'ETH/GBP', 'symbol': 'ETH/GBP', 'base': 'ETH', 'quote': 'GBP', 'baseId': 'ETH', 'quoteId': 'GBP', 'precision': { 'price': 0, 'amount': 4 }},
             },
             'exceptions': {
                 'exact': {
@@ -446,6 +445,7 @@ module.exports = class coinfloor extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -459,6 +459,8 @@ module.exports = class coinfloor extends Exchange {
             'remaining': undefined,
             'cost': cost,
             'fee': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/coingi.js b/BackendServers/node_modules/ccxt/js/coingi.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/coingi.js
rename to BackendServers/node_modules/ccxt/js/coingi.js
diff --git a/WebServer/node_modules/ccxt/js/coinmarketcap.js b/BackendServers/node_modules/ccxt/js/coinmarketcap.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/coinmarketcap.js
rename to BackendServers/node_modules/ccxt/js/coinmarketcap.js
index 078341b83..b9338c4c7 100644
--- a/WebServer/node_modules/ccxt/js/coinmarketcap.js
+++ b/BackendServers/node_modules/ccxt/js/coinmarketcap.js
@@ -170,6 +170,9 @@ module.exports = class coinmarketcap extends Exchange {
                     'baseId': baseId,
                     'quoteId': quoteId,
                     'info': market,
+                    'active': undefined,
+                    'precision': this.precision,
+                    'limits': this.limits,
                 });
             }
         }
diff --git a/WebServer/node_modules/ccxt/js/coinmate.js b/BackendServers/node_modules/ccxt/js/coinmate.js
similarity index 61%
rename from WebServer/node_modules/ccxt/js/coinmate.js
rename to BackendServers/node_modules/ccxt/js/coinmate.js
index 3418dfb9d..6e5196f01 100644
--- a/WebServer/node_modules/ccxt/js/coinmate.js
+++ b/BackendServers/node_modules/ccxt/js/coinmate.js
@@ -3,7 +3,7 @@
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError } = require ('./base/errors');
+const { ExchangeError, ArgumentsRequired, InvalidOrder, OrderNotFound, RateLimitExceeded, InsufficientFunds } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -16,8 +16,14 @@ module.exports = class coinmate extends Exchange {
             'rateLimit': 1000,
             'has': {
                 'CORS': true,
+                'fetchBalance': true,
+                'fetchOrders': true,
+                'fetchOrder': true,
                 'fetchMyTrades': true,
                 'fetchTransactions': true,
+                'fetchOpenOrders': true,
+                'createOrder': true,
+                'cancelOrder': true,
             },
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/27811229-c1efb510-606c-11e7-9a36-84ba2ce412d8.jpg',
@@ -66,6 +72,7 @@ module.exports = class coinmate extends Exchange {
                         'openOrders',
                         'order',
                         'orderHistory',
+                        'orderById',
                         'pusherAuth',
                         'redeemVoucher',
                         'replaceByBuyLimit',
@@ -92,8 +99,74 @@ module.exports = class coinmate extends Exchange {
             },
             'fees': {
                 'trading': {
-                    'maker': 0.05 / 100,
-                    'taker': 0.15 / 100,
+                    'tierBased': true,
+                    'percentage': true,
+                    'maker': 0.12 / 100,
+                    'taker': 0.25 / 100,
+                    'tiers': {
+                        'taker': [
+                            [0, 0.25 / 100],
+                            [10000, 0.23 / 100],
+                            [100000, 0.21 / 100],
+                            [250000, 0.20 / 100],
+                            [500000, 0.15 / 100],
+                            [1000000, 0.13 / 100],
+                            [3000000, 0.10 / 100],
+                            [15000000, 0.05 / 100],
+                        ],
+                        'maker': [
+                            [0, 0.12 / 100],
+                            [10000, 0.11 / 100],
+                            [1000000, 0.10 / 100],
+                            [250000, 0.08 / 100],
+                            [500000, 0.05 / 100],
+                            [1000000, 0.03 / 100],
+                            [3000000, 0.02 / 100],
+                            [15000000, 0],
+                        ],
+                    },
+                },
+                'promotional': {
+                    'trading': {
+                        'maker': 0.05 / 100,
+                        'taker': 0.15 / 100,
+                        'tiers': {
+                            'taker': [
+                                [0, 0.15 / 100],
+                                [10000, 0.14 / 100],
+                                [100000, 0.13 / 100],
+                                [250000, 0.12 / 100],
+                                [500000, 0.11 / 100],
+                                [1000000, 0.1 / 100],
+                                [3000000, 0.08 / 100],
+                                [15000000, 0.05 / 100],
+                            ],
+                            'maker': [
+                                [0, 0.05 / 100],
+                                [10000, 0.04 / 100],
+                                [1000000, 0.03 / 100],
+                                [250000, 0.02 / 100],
+                                [500000, 0],
+                                [1000000, 0],
+                                [3000000, 0],
+                                [15000000, 0],
+                            ],
+                        },
+                    },
+                },
+            },
+            'options': {
+                'promotionalMarkets': ['ETH/EUR', 'ETH/CZK', 'ETH/BTC', 'XRP/EUR', 'XRP/CZK', 'XRP/BTC', 'DASH/EUR', 'DASH/CZK', 'DASH/BTC', 'BCH/EUR', 'BCH/CZK', 'BCH/BTC'],
+            },
+            'exceptions': {
+                'exact': {
+                    'No order with given ID': OrderNotFound,
+                },
+                'broad': {
+                    'Not enough account balance available': InsufficientFunds,
+                    'Incorrect order ID': InvalidOrder,
+                    'Minimum Order Size ': InvalidOrder,
+                    'TOO MANY REQUESTS': RateLimitExceeded,
                 },
             },
         });
@@ -130,6 +203,12 @@ module.exports = class coinmate extends Exchange {
             const base = this.safeCurrencyCode (baseId);
             const quote = this.safeCurrencyCode (quoteId);
             const symbol = base + '/' + quote;
+            const promotionalMarkets = this.safeValue (this.options, 'promotionalMarkets', []);
+            let fees = this.safeValue (this.fees, 'trading');
+            if (this.inArray (symbol, promotionalMarkets)) {
+                const promotionalFees = this.safeValue (this.fees, 'promotional', {});
+                fees = this.safeValue (promotionalFees, 'trading', fees);
+            }
             result.push ({
                 'id': id,
                 'symbol': symbol,
@@ -138,6 +217,8 @@ module.exports = class coinmate extends Exchange {
                 'baseId': baseId,
                 'quoteId': quoteId,
                 'active': undefined,
+                'maker': fees['maker'],
+                'taker': fees['taker'],
                 'info': market,
                 'precision': {
                     'price': this.safeInteger (market, 'priceDecimals'),
@@ -326,6 +407,10 @@ module.exports = class coinmate extends Exchange {
         const request = {
             'limit': limit,
         };
+        if (symbol !== undefined) {
+            const market = this.market (symbol);
+            request['currencyPair'] = market['id'];
+        }
         if (since !== undefined) {
             request['timestampFrom'] = since;
         }
@@ -449,6 +534,148 @@ module.exports = class coinmate extends Exchange {
         return this.parseTrades (data, market, since, limit);
     }
 
+    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        const response = await this.privatePostOpenOrders (this.extend ({}, params));
+        const extension = { 'status': 'open' };
+        return this.parseOrders (response['data'], undefined, since, limit, extension);
+    }
+
+    async fetchOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        if (symbol === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchOrders requires a symbol argument');
+        }
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'currencyPair': market['id'],
+        };
+        // offset param that appears in other parts of the API doesn't appear to be supported here
+        if (limit !== undefined) {
+            request['limit'] = limit;
+        }
+        const response = await this.privatePostOrderHistory (this.extend (request, params));
+        return this.parseOrders (response['data'], market, since, limit);
+    }
+
+    parseOrderStatus (status) {
+        const statuses = {
+            'FILLED': 'closed',
+            'CANCELLED': 'canceled',
+            'PARTIALLY_FILLED': 'open',
+            'OPEN': 'open',
+        };
+        return this.safeString (statuses, status, status);
+    }
+
+    parseOrderType (type) {
+        const types = {
+            'LIMIT': 'limit',
+            'MARKET': 'market',
+        };
+        return this.safeString (types, type, type);
+    }
+
+    parseOrder (order, market = undefined) {
+        //
+        // limit sell
+        //
+        //     {
+        //         id: 781246605,
+        //         timestamp: 1584480015133,
+        //         trailingUpdatedTimestamp: null,
+        //         type: 'SELL',
+        //         currencyPair: 'ETH_BTC',
+        //         price: 0.0345,
+        //         amount: 0.01,
+        //         stopPrice: null,
+        //         originalStopPrice: null,
+        //         marketPriceAtLastUpdate: null,
+        //         marketPriceAtOrderCreation: null,
+        //         orderTradeType: 'LIMIT',
+        //         hidden: false,
+        //         trailing: false,
+        //         clientOrderId: null
+        //     }
+        //
+        // limit buy
+        //
+        //     {
+        //         id: 67527001,
+        //         timestamp: 1517931722613,
+        //         trailingUpdatedTimestamp: null,
+        //         type: 'BUY',
+        //         price: 5897.24,
+        //         remainingAmount: 0.002367,
+        //         originalAmount: 0.1,
+        //         stopPrice: null,
+        //         originalStopPrice: null,
+        //         marketPriceAtLastUpdate: null,
+        //         marketPriceAtOrderCreation: null,
+        //         status: 'CANCELLED',
+        //         orderTradeType: 'LIMIT',
+        //         hidden: false,
+        //         avgPrice: null,
+        //         trailing: false,
+        //     }
+        //
+        const id = this.safeString (order, 'id');
+        const timestamp = this.safeInteger (order, 'timestamp');
+        const side = this.safeStringLower (order, 'type');
+        const price = this.safeFloat (order, 'price');
+        const amount = this.safeFloat2 (order, 'originalAmount', 'amount');
+        const remaining = this.safeFloat (order, 'remainingAmount', amount);
+        let status = this.parseOrderStatus (this.safeString (order, 'status'));
+        const type = this.parseOrderType (this.safeString (order, 'orderTradeType'));
+        let filled = undefined;
+        let cost = undefined;
+        if ((amount !== undefined) && (remaining !== undefined)) {
+            filled = Math.min (amount - remaining, 0);
+            if (remaining === 0) {
+                status = 'closed';
+            }
+            if (price !== undefined) {
+                cost = filled * price;
+            }
+        }
+        const average = this.safeFloat (order, 'avgPrice');
+        let symbol = undefined;
+        const marketId = this.safeString (order, 'currencyPair');
+        if (marketId !== undefined) {
+            if (marketId in this.markets_by_id) {
+                market = this.markets_by_id[marketId];
+            } else {
+                const [ baseId, quoteId ] = marketId.split ('_');
+                const base = this.safeCurrencyCode (baseId);
+                const quote = this.safeCurrencyCode (quoteId);
+                symbol = base + '/' + quote;
+            }
+        }
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+        }
+        const clientOrderId = this.safeString (order, 'clientOrderId');
+        return {
+            'id': id,
+            'clientOrderId': clientOrderId,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'lastTradeTimestamp': undefined,
+            'symbol': symbol,
+            'type': type,
+            'side': side,
+            'price': price,
+            'amount': amount,
+            'cost': cost,
+            'average': average,
+            'filled': filled,
+            'remaining': remaining,
+            'status': status,
+            'trades': undefined,
+            'info': order,
+            'fee': undefined,
+        };
+    }
+
     async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
         await this.loadMarkets ();
         let method = 'privatePost' + this.capitalize (side);
@@ -457,25 +684,45 @@ module.exports = class coinmate extends Exchange {
         };
         if (type === 'market') {
             if (side === 'buy') {
-                request['total'] = amount; // amount in fiat
+                request['total'] = this.amountToPrecision (symbol, amount); // amount in fiat
             } else {
-                request['amount'] = amount; // amount in fiat
+                request['amount'] = this.amountToPrecision (symbol, amount); // amount in fiat
             }
             method += 'Instant';
         } else {
-            request['amount'] = amount; // amount in crypto
-            request['price'] = price;
+            request['amount'] = this.amountToPrecision (symbol, amount); // amount in crypto
+            request['price'] = this.priceToPrecision (symbol, price);
             method += this.capitalize (type);
         }
         const response = await this[method] (this.extend (request, params));
+        const id = this.safeString (response, 'data');
         return {
             'info': response,
-            'id': response['data'].toString (),
+            'id': id,
         };
     }
 
+    async fetchOrder (id, symbol = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            'orderId': id,
+        };
+        let market = undefined;
+        if (symbol) {
+            market = this.market (symbol);
+        }
+        const response = await this.privatePostOrderById (this.extend (request, params));
+        const data = this.safeValue (response, 'data');
+        return this.parseOrder (data, market);
+    }
+
     async cancelOrder (id, symbol = undefined, params = {}) {
-        return await this.privatePostCancelOrder ({ 'orderId': id });
+        //   {"error":false,"errorMessage":null,"data":{"success":true,"remainingAmount":0.01}}
+        const request = { 'orderId': id };
+        const response = await this.privatePostCancelOrderWithInfo (this.extend (request, params));
+        return {
+            'info': response,
+        };
     }
 
     nonce () {
@@ -506,13 +753,27 @@ module.exports = class coinmate extends Exchange {
         return { 'url': url, 'method': method, 'body': body, 'headers': headers };
     }
 
-    async request (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        const response = await this.fetch2 (path, api, method, params, headers, body);
-        if ('error' in response) {
-            if (response['error']) {
-                throw new ExchangeError (this.id + ' ' + this.json (response));
+    handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
+        if (response !== undefined) {
+            if ('error' in response) {
+                // {"error":true,"errorMessage":"Minimum Order Size 0.01 ETH","data":null}
+                if (response['error']) {
+                    const message = this.safeString (response, 'errorMessage');
+                    const feedback = this.id + ' ' + message;
+                    this.throwExactlyMatchedException (this.exceptions['exact'], message, feedback);
+                    this.throwBroadlyMatchedException (this.exceptions['broad'], message, feedback);
+                    throw new ExchangeError (this.id + ' ' + this.json (response));
+                }
             }
         }
-        return response;
+        if (code > 400) {
+            if (body) {
+                const feedback = this.id + ' ' + body;
+                this.throwExactlyMatchedException (this.exceptions['exact'], body, feedback);
+                this.throwBroadlyMatchedException (this.exceptions['broad'], body, feedback);
+                throw new ExchangeError (feedback); // unknown message
+            }
+            throw new ExchangeError (this.id + ' ' + body);
+        }
     }
 };
diff --git a/WebServer/node_modules/ccxt/js/coinone.js b/BackendServers/node_modules/ccxt/js/coinone.js
similarity index 97%
rename from WebServer/node_modules/ccxt/js/coinone.js
rename to BackendServers/node_modules/ccxt/js/coinone.js
index 56bb65ce9..4577aa6b0 100644
--- a/WebServer/node_modules/ccxt/js/coinone.js
+++ b/BackendServers/node_modules/ccxt/js/coinone.js
@@ -305,6 +305,8 @@ module.exports = class coinone extends Exchange {
             'remaining': amount,
             'status': 'open',
             'fee': undefined,
+            'clientOrderId': undefined,
+            'trades': undefined,
         };
         this.orders[id] = order;
         return order;
@@ -356,6 +358,17 @@ module.exports = class coinone extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "index": "0",
+        //         "orderId": "68665943-1eb5-4e4b-9d76-845fc54f5489",
+        //         "timestamp": "1449037367",
+        //         "price": "444000.0",
+        //         "qty": "0.3456",
+        //         "type": "ask",
+        //         "feeRate": "-0.0015"
+        //     }
+        //
         const info = this.safeValue (order, 'info');
         const id = this.safeStringUpper (info, 'orderId');
         const timestamp = this.safeTimestamp (info, 'timestamp');
@@ -398,6 +411,7 @@ module.exports = class coinone extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -411,6 +425,8 @@ module.exports = class coinone extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/coinspot.js b/BackendServers/node_modules/ccxt/js/coinspot.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/coinspot.js
rename to BackendServers/node_modules/ccxt/js/coinspot.js
diff --git a/WebServer/node_modules/ccxt/js/coolcoin.js b/BackendServers/node_modules/ccxt/js/coolcoin.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/coolcoin.js
rename to BackendServers/node_modules/ccxt/js/coolcoin.js
diff --git a/WebServer/node_modules/ccxt/js/coss.js b/BackendServers/node_modules/ccxt/js/coss.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/coss.js
rename to BackendServers/node_modules/ccxt/js/coss.js
index 1524d0d1f..35fe5767e 100644
--- a/WebServer/node_modules/ccxt/js/coss.js
+++ b/BackendServers/node_modules/ccxt/js/coss.js
@@ -833,6 +833,7 @@ module.exports = class coss extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
diff --git a/WebServer/node_modules/ccxt/js/crex24.js b/BackendServers/node_modules/ccxt/js/crex24.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/crex24.js
rename to BackendServers/node_modules/ccxt/js/crex24.js
index 93f89a92a..cb448a0ff 100644
--- a/WebServer/node_modules/ccxt/js/crex24.js
+++ b/BackendServers/node_modules/ccxt/js/crex24.js
@@ -120,6 +120,7 @@ module.exports = class crex24 extends Exchange {
             },
             'commonCurrencies': {
                 'YOYO': 'YOYOW',
+                'BULL': 'BuySell',
                 'BCC': 'BCH',
             },
             // exchange-specific options
@@ -705,6 +706,7 @@ module.exports = class crex24 extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
diff --git a/BackendServers/node_modules/ccxt/js/deribit.js b/BackendServers/node_modules/ccxt/js/deribit.js
new file mode 100644
index 000000000..6ee16f969
--- /dev/null
+++ b/BackendServers/node_modules/ccxt/js/deribit.js
@@ -0,0 +1,1712 @@
+'use strict';
+
+//  ---------------------------------------------------------------------------
+
+const Exchange = require ('./base/Exchange');
+const { TICK_SIZE } = require ('./base/functions/number');
+const { AuthenticationError, ExchangeError, ArgumentsRequired, PermissionDenied, InvalidOrder, OrderNotFound, DDoSProtection, NotSupported, ExchangeNotAvailable, InsufficientFunds, BadRequest, InvalidAddress, OnMaintenance } = require ('./base/errors');
+
+//  ---------------------------------------------------------------------------
+
+module.exports = class deribit extends Exchange {
+    describe () {
+        return this.deepExtend (super.describe (), {
+            'id': 'deribit',
+            'name': 'Deribit',
+            'countries': [ 'NL' ], // Netherlands
+            'version': 'v2',
+            'userAgent': undefined,
+            'rateLimit': 500,
+            'has': {
+                'CORS': true,
+                'editOrder': true,
+                'fetchBalance': true,
+                'fetchOrder': true,
+                'fetchOrders': false,
+                'fetchOpenOrders': true,
+                'fetchClosedOrders': true,
+                'fetchMyTrades': true,
+                'fetchTickers': true,
+                'fetchOHLCV': true,
+                'fetchDepositAddress': true,
+                'createDepositAddress': true,
+                'fetchOrderTrades': true,
+                'createOrder': true,
+                'cancelOrder': true,
+                'cancelAllOrders': true,
+                'withdraw': true,
+                'fetchTime': true,
+                'fetchStatus': true,
+                'fetchDeposits': true,
+                'fetchWithdrawals': true,
+                'fetchTransactions': false,
+            },
+            'timeframes': {
+                '1m': '1',
+                '3m': '3',
+                '5m': '5',
+                '10m': '10',
+                '15m': '15',
+                '30m': '30',
+                '1h': '60',
+                '2h': '120',
+                '3h': '180',
+                '6h': '360',
+                '12h': '720',
+                '1d': '1D',
+            },
+            'urls': {
+                'test': 'https://test.deribit.com',
+                'logo': 'https://user-images.githubusercontent.com/1294454/41933112-9e2dd65a-798b-11e8-8440-5bab2959fcb8.jpg',
+                'api': 'https://www.deribit.com',
+                'www': 'https://www.deribit.com',
+                'doc': [
+                    'https://docs.deribit.com/v2',
+                    'https://github.com/deribit',
+                ],
+                'fees': 'https://www.deribit.com/pages/information/fees',
+                'referral': 'https://www.deribit.com/reg-1189.4038',
+            },
+            'api': {
+                'public': {
+                    'get': [
+                        // Authentication
+                        'auth',
+                        'exchange_token',
+                        'fork_token',
+                        // Session management
+                        'set_heartbeat',
+                        'disable_heartbeat',
+                        // Supporting
+                        'get_time',
+                        'hello',
+                        'test',
+                        // Subscription management
+                        'subscribe',
+                        'unsubscribe',
+                        // Account management
+                        'get_announcements',
+                        // Market data
+                        'get_book_summary_by_currency',
+                        'get_book_summary_by_instrument',
+                        'get_contract_size',
+                        'get_currencies',
+                        'get_funding_chart_data',
+                        'get_funding_rate_history',
+                        'get_funding_rate_value',
+                        'get_historical_volatility',
+                        'get_index',
+                        'get_instruments',
+                        'get_last_settlements_by_currency',
+                        'get_last_settlements_by_instrument',
+                        'get_last_trades_by_currency',
+                        'get_last_trades_by_currency_and_time',
+                        'get_last_trades_by_instrument',
+                        'get_last_trades_by_instrument_and_time',
+                        'get_order_book',
+                        'get_trade_volumes',
+                        'get_tradingview_chart_data',
+                        'ticker',
+                    ],
+                },
+                'private': {
+                    'get': [
+                        // Authentication
+                        'logout',
+                        // Session management
+                        'enable_cancel_on_disconnect',
+                        'disable_cancel_on_disconnect',
+                        'get_cancel_on_disconnect',
+                        // Subscription management
+                        'subscribe',
+                        'unsubscribe',
+                        // Account management
+                        'change_api_key_name',
+                        'change_scope_in_api_key',
+                        'change_subaccount_name',
+                        'create_api_key',
+                        'create_subaccount',
+                        'disable_api_key',
+                        'disable_tfa_for_subaccount',
+                        'enable_api_key',
+                        'get_account_summary',
+                        'get_email_language',
+                        'get_new_announcements',
+                        'get_position',
+                        'get_positions',
+                        'get_subaccounts',
+                        'list_api_keys',
+                        'remove_api_key',
+                        'reset_api_key',
+                        'set_announcement_as_read',
+                        'set_api_key_as_default',
+                        'set_email_for_subaccount',
+                        'set_email_language',
+                        'set_password_for_subaccount',
+                        'toggle_notifications_from_subaccount',
+                        'toggle_subaccount_login',
+                        // Block Trade
+                        'execute_block_trade',
+                        'get_block_trade',
+                        'get_last_block_trades_by_currency',
+                        'invalidate_block_trade_signature',
+                        'verify_block_trade',
+                        // Trading
+                        'buy',
+                        'sell',
+                        'edit',
+                        'cancel',
+                        'cancel_all',
+                        'cancel_all_by_currency',
+                        'cancel_all_by_instrument',
+                        'cancel_by_label',
+                        'close_position',
+                        'get_margins',
+                        'get_open_orders_by_currency',
+                        'get_open_orders_by_instrument',
+                        'get_order_history_by_currency',
+                        'get_order_history_by_instrument',
+                        'get_order_margin_by_ids',
+                        'get_order_state',
+                        'get_stop_order_history',
+                        'get_user_trades_by_currency',
+                        'get_user_trades_by_currency_and_time',
+                        'get_user_trades_by_instrument',
+                        'get_user_trades_by_instrument_and_time',
+                        'get_user_trades_by_order',
+                        'get_settlement_history_by_instrument',
+                        'get_settlement_history_by_currency',
+                        // Wallet
+                        'cancel_transfer_by_id',
+                        'cancel_withdrawal',
+                        'create_deposit_address',
+                        'get_current_deposit_address',
+                        'get_deposits',
+                        'get_transfers',
+                        'get_withdrawals',
+                        'submit_transfer_to_subaccount',
+                        'submit_transfer_to_user',
+                        'withdraw',
+                    ],
+                },
+            },
+            'exceptions': {
+                // 0 or absent Success, No error.
+                '9999': PermissionDenied, // 'api_not_enabled' User didn't enable API for the Account.
+                '10000': AuthenticationError, // 'authorization_required' Authorization issue, invalid or absent signature etc.
+                '10001': ExchangeError, // 'error' Some general failure, no public information available.
+                '10002': InvalidOrder, // 'qty_too_low' Order quantity is too low.
+                '10003': InvalidOrder, // 'order_overlap' Rejection, order overlap is found and self-trading is not enabled.
+                '10004': OrderNotFound, // 'order_not_found' Attempt to operate with order that can't be found by specified id.
+                '10005': InvalidOrder, // 'price_too_low <Limit>' Price is too low, <Limit> defines current limit for the operation.
+                '10006': InvalidOrder, // 'price_too_low4idx <Limit>' Price is too low for current index, <Limit> defines current bottom limit for the operation.
+                '10007': InvalidOrder, // 'price_too_high <Limit>' Price is too high, <Limit> defines current up limit for the operation.
+                '10008': InvalidOrder, // 'price_too_high4idx <Limit>' Price is too high for current index, <Limit> defines current up limit for the operation.
+                '10009': InsufficientFunds, // 'not_enough_funds' Account has not enough funds for the operation.
+                '10010': OrderNotFound, // 'already_closed' Attempt of doing something with closed order.
+                '10011': InvalidOrder, // 'price_not_allowed' This price is not allowed for some reason.
+                '10012': InvalidOrder, // 'book_closed' Operation for instrument which order book had been closed.
+                '10013': PermissionDenied, // 'pme_max_total_open_orders <Limit>' Total limit of open orders has been exceeded, it is applicable for PME users.
+                '10014': PermissionDenied, // 'pme_max_future_open_orders <Limit>' Limit of count of futures' open orders has been exceeded, it is applicable for PME users.
+                '10015': PermissionDenied, // 'pme_max_option_open_orders <Limit>' Limit of count of options' open orders has been exceeded, it is applicable for PME users.
+                '10016': PermissionDenied, // 'pme_max_future_open_orders_size <Limit>' Limit of size for futures has been exceeded, it is applicable for PME users.
+                '10017': PermissionDenied, // 'pme_max_option_open_orders_size <Limit>' Limit of size for options has been exceeded, it is applicable for PME users.
+                '10018': PermissionDenied, // 'non_pme_max_future_position_size <Limit>' Limit of size for futures has been exceeded, it is applicable for non-PME users.
+                '10019': PermissionDenied, // 'locked_by_admin' Trading is temporary locked by admin.
+                '10020': ExchangeError, // 'invalid_or_unsupported_instrument' Instrument name is not valid.
+                '10021': InvalidOrder, // 'invalid_amount' Amount is not valid.
+                '10022': InvalidOrder, // 'invalid_quantity' quantity was not recognized as a valid number (for API v1).
+                '10023': InvalidOrder, // 'invalid_price' price was not recognized as a valid number.
+                '10024': InvalidOrder, // 'invalid_max_show' max_show parameter was not recognized as a valid number.
+                '10025': InvalidOrder, // 'invalid_order_id' Order id is missing or its format was not recognized as valid.
+                '10026': InvalidOrder, // 'price_precision_exceeded' Extra precision of the price is not supported.
+                '10027': InvalidOrder, // 'non_integer_contract_amount' Futures contract amount was not recognized as integer.
+                '10028': DDoSProtection, // 'too_many_requests' Allowed request rate has been exceeded.
+                '10029': OrderNotFound, // 'not_owner_of_order' Attempt to operate with not own order.
+                '10030': ExchangeError, // 'must_be_websocket_request' REST request where Websocket is expected.
+                '10031': ExchangeError, // 'invalid_args_for_instrument' Some of arguments are not recognized as valid.
+                '10032': InvalidOrder, // 'whole_cost_too_low' Total cost is too low.
+                '10033': NotSupported, // 'not_implemented' Method is not implemented yet.
+                '10034': InvalidOrder, // 'stop_price_too_high' Stop price is too high.
+                '10035': InvalidOrder, // 'stop_price_too_low' Stop price is too low.
+                '10036': InvalidOrder, // 'invalid_max_show_amount' Max Show Amount is not valid.
+                '10040': ExchangeNotAvailable, // 'retry' Request can't be processed right now and should be retried.
+                '10041': OnMaintenance, // 'settlement_in_progress' Settlement is in progress. Every day at settlement time for several seconds, the system calculates user profits and updates balances. That time trading is paused for several seconds till the calculation is completed.
+                '10043': InvalidOrder, // 'price_wrong_tick' Price has to be rounded to a certain tick size.
+                '10044': InvalidOrder, // 'stop_price_wrong_tick' Stop Price has to be rounded to a certain tick size.
+                '10045': InvalidOrder, // 'can_not_cancel_liquidation_order' Liquidation order can't be canceled.
+                '10046': InvalidOrder, // 'can_not_edit_liquidation_order' Liquidation order can't be edited.
+                '10047': DDoSProtection, // 'matching_engine_queue_full' Reached limit of pending Matching Engine requests for user.
+                '10048': ExchangeError, // 'not_on_this_server' The requested operation is not available on this server.
+                '11008': InvalidOrder, // 'already_filled' This request is not allowed in regards to the filled order.
+                '11029': BadRequest, // 'invalid_arguments' Some invalid input has been detected.
+                '11030': ExchangeError, // 'other_reject <Reason>' Some rejects which are not considered as very often, more info may be specified in <Reason>.
+                '11031': ExchangeError, // 'other_error <Error>' Some errors which are not considered as very often, more info may be specified in <Error>.
+                '11035': DDoSProtection, // 'no_more_stops <Limit>' Allowed amount of stop orders has been exceeded.
+                '11036': InvalidOrder, // 'invalid_stoppx_for_index_or_last' Invalid StopPx (too high or too low) as to current index or market.
+                '11037': BadRequest, // 'outdated_instrument_for_IV_order' Instrument already not available for trading.
+                '11038': InvalidOrder, // 'no_adv_for_futures' Advanced orders are not available for futures.
+                '11039': InvalidOrder, // 'no_adv_postonly' Advanced post-only orders are not supported yet.
+                '11041': InvalidOrder, // 'not_adv_order' Advanced order properties can't be set if the order is not advanced.
+                '11042': PermissionDenied, // 'permission_denied' Permission for the operation has been denied.
+                '11043': BadRequest, // 'bad_argument' Bad argument has been passed.
+                '11044': InvalidOrder, // 'not_open_order' Attempt to do open order operations with the not open order.
+                '11045': BadRequest, // 'invalid_event' Event name has not been recognized.
+                '11046': BadRequest, // 'outdated_instrument' At several minutes to instrument expiration, corresponding advanced implied volatility orders are not allowed.
+                '11047': BadRequest, // 'unsupported_arg_combination' The specified combination of arguments is not supported.
+                '11048': ExchangeError, // 'wrong_max_show_for_option' Wrong Max Show for options.
+                '11049': BadRequest, // 'bad_arguments' Several bad arguments have been passed.
+                '11050': BadRequest, // 'bad_request' Request has not been parsed properly.
+                '11051': OnMaintenance, // 'system_maintenance' System is under maintenance.
+                '11052': ExchangeError, // 'subscribe_error_unsubscribed' Subscription error. However, subscription may fail without this error, please check list of subscribed channels returned, as some channels can be not subscribed due to wrong input or lack of permissions.
+                '11053': ExchangeError, // 'transfer_not_found' Specified transfer is not found.
+                '11090': InvalidAddress, // 'invalid_addr' Invalid address.
+                '11091': InvalidAddress, // 'invalid_transfer_address' Invalid addres for the transfer.
+                '11092': InvalidAddress, // 'address_already_exist' The address already exists.
+                '11093': DDoSProtection, // 'max_addr_count_exceeded' Limit of allowed addresses has been reached.
+                '11094': ExchangeError, // 'internal_server_error' Some unhandled error on server. Please report to admin. The details of the request will help to locate the problem.
+                '11095': ExchangeError, // 'disabled_deposit_address_creation' Deposit address creation has been disabled by admin.
+                '11096': ExchangeError, // 'address_belongs_to_user' Withdrawal instead of transfer.
+                '12000': AuthenticationError, // 'bad_tfa' Wrong TFA code
+                '12001': DDoSProtection, // 'too_many_subaccounts' Limit of subbacounts is reached.
+                '12002': ExchangeError, // 'wrong_subaccount_name' The input is not allowed as name of subaccount.
+                '12998': AuthenticationError, // 'tfa_over_limit' The number of failed TFA attempts is limited.
+                '12003': AuthenticationError, // 'login_over_limit' The number of failed login attempts is limited.
+                '12004': AuthenticationError, // 'registration_over_limit' The number of registration requests is limited.
+                '12005': AuthenticationError, // 'country_is_banned' The country is banned (possibly via IP check).
+                '12100': ExchangeError, // 'transfer_not_allowed' Transfer is not allowed. Possible wrong direction or other mistake.
+                '12999': AuthenticationError, // 'tfa_used' TFA code is correct but it is already used. Please, use next code.
+                '13000': AuthenticationError, // 'invalid_login' Login name is invalid (not allowed or it contains wrong characters).
+                '13001': AuthenticationError, // 'account_not_activated' Account must be activated.
+                '13002': PermissionDenied, // 'account_blocked' Account is blocked by admin.
+                '13003': AuthenticationError, // 'tfa_required' This action requires TFA authentication.
+                '13004': AuthenticationError, // 'invalid_credentials' Invalid credentials has been used.
+                '13005': AuthenticationError, // 'pwd_match_error' Password confirmation error.
+                '13006': AuthenticationError, // 'security_error' Invalid Security Code.
+                '13007': AuthenticationError, // 'user_not_found' User's security code has been changed or wrong.
+                '13008': ExchangeError, // 'request_failed' Request failed because of invalid input or internal failure.
+                '13009': AuthenticationError, // 'unauthorized' Wrong or expired authorization token or bad signature. For example, please check scope of the token, 'connection' scope can't be reused for other connections.
+                '13010': BadRequest, // 'value_required' Invalid input, missing value.
+                '13011': BadRequest, // 'value_too_short' Input is too short.
+                '13012': PermissionDenied, // 'unavailable_in_subaccount' Subaccount restrictions.
+                '13013': BadRequest, // 'invalid_phone_number' Unsupported or invalid phone number.
+                '13014': BadRequest, // 'cannot_send_sms' SMS sending failed -- phone number is wrong.
+                '13015': BadRequest, // 'invalid_sms_code' Invalid SMS code.
+                '13016': BadRequest, // 'invalid_input' Invalid input.
+                '13017': ExchangeError, // 'subscription_failed' Subscription hailed, invalid subscription parameters.
+                '13018': ExchangeError, // 'invalid_content_type' Invalid content type of the request.
+                '13019': ExchangeError, // 'orderbook_closed' Closed, expired order book.
+                '13020': ExchangeError, // 'not_found' Instrument is not found, invalid instrument name.
+                '13021': PermissionDenied, // 'forbidden' Not enough permissions to execute the request, forbidden.
+                '13025': ExchangeError, // 'method_switched_off_by_admin' API method temporarily switched off by administrator.
+                '-32602': BadRequest, // 'Invalid params' see JSON-RPC spec.
+                '-32601': BadRequest, // 'Method not found' see JSON-RPC spec.
+                '-32700': BadRequest, // 'Parse error' see JSON-RPC spec.
+                '-32000': BadRequest, // 'Missing params' see JSON-RPC spec.
+            },
+            'precisionMode': TICK_SIZE,
+            'options': {
+                'code': 'BTC',
+                'fetchBalance': {
+                    'code': 'BTC',
+                },
+            },
+        });
+    }
+
+    async fetchTime (params = {}) {
+        const response = await this.publicGetGetTime (params);
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: 1583922446019,
+        //         usIn: 1583922446019955,
+        //         usOut: 1583922446019956,
+        //         usDiff: 1,
+        //         testnet: false
+        //     }
+        //
+        return this.safeInteger (response, 'result');
+    }
+
+    codeFromOptions (methodName) {
+        const defaultCode = this.safeValue (this.options, 'code', 'BTC');
+        const options = this.safeValue (this.options, methodName, {});
+        return this.safeValue (options, 'code', defaultCode);
+    }
+
+    async fetchStatus (params = {}) {
+        const request = {
+            // 'expected_result': false, // true will trigger an error for testing purposes
+        };
+        await this.publicGetTest (this.extend (request, params));
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: { version: '1.2.26' },
+        //         usIn: 1583922623964485,
+        //         usOut: 1583922623964487,
+        //         usDiff: 2,
+        //         testnet: false
+        //     }
+        //
+        this.status = this.extend (this.status, {
+            'status': 'ok',
+            'updated': this.milliseconds (),
+        });
+        return this.status;
+    }
+
+    async fetchMarkets (params = {}) {
+        const currenciesResponse = await this.publicGetGetCurrencies (params);
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: [
+        //             {
+        //                 withdrawal_priorities: [
+        //                     { value: 0.15, name: 'very_low' },
+        //                     { value: 1.5, name: 'very_high' },
+        //                 ],
+        //                 withdrawal_fee: 0.0005,
+        //                 min_withdrawal_fee: 0.0005,
+        //                 min_confirmations: 1,
+        //                 fee_precision: 4,
+        //                 currency_long: 'Bitcoin',
+        //                 currency: 'BTC',
+        //                 coin_type: 'BITCOIN'
+        //             }
+        //         ],
+        //         usIn: 1583761588590479,
+        //         usOut: 1583761588590544,
+        //         usDiff: 65,
+        //         testnet: false
+        //     }
+        //
+        const currenciesResult = this.safeValue (currenciesResponse, 'result', []);
+        const result = [];
+        for (let i = 0; i < currenciesResult.length; i++) {
+            const currencyId = this.safeString (currenciesResult[i], 'currency');
+            const request = {
+                'currency': currencyId,
+            };
+            const instrumentsResponse = await this.publicGetGetInstruments (this.extend (request, params));
+            //
+            //     {
+            //         jsonrpc: '2.0',
+            //         result: [
+            //             {
+            //                 tick_size: 0.0005,
+            //                 taker_commission: 0.0004,
+            //                 strike: 300,
+            //                 settlement_period: 'week',
+            //                 quote_currency: 'USD',
+            //                 option_type: 'call',
+            //                 min_trade_amount: 1,
+            //                 maker_commission: 0.0004,
+            //                 kind: 'option',
+            //                 is_active: true,
+            //                 instrument_name: 'ETH-13MAR20-300-C',
+            //                 expiration_timestamp: 1584086400000,
+            //                 creation_timestamp: 1582790403000,
+            //                 contract_size: 1,
+            //                 base_currency: 'ETH'
+            //             },
+            //         ],
+            //         usIn: 1583761889500586,
+            //         usOut: 1583761889505066,
+            //         usDiff: 4480,
+            //         testnet: false
+            //     }
+            //
+            const instrumentsResult = this.safeValue (instrumentsResponse, 'result', []);
+            for (let k = 0; k < instrumentsResult.length; k++) {
+                const market = instrumentsResult[k];
+                const id = this.safeString (market, 'instrument_name');
+                const baseId = this.safeString (market, 'base_currency');
+                const quoteId = this.safeString (market, 'quote_currency');
+                const base = this.safeCurrencyCode (baseId);
+                const quote = this.safeCurrencyCode (quoteId);
+                const type = this.safeString (market, 'kind');
+                const future = (type === 'future');
+                const option = (type === 'option');
+                const active = this.safeValue (market, 'is_active');
+                const minTradeAmount = this.safeFloat (market, 'min_trade_amount');
+                const tickSize = this.safeFloat (market, 'tick_size');
+                const precision = {
+                    'amount': minTradeAmount,
+                    'price': tickSize,
+                };
+                result.push ({
+                    'id': id,
+                    'symbol': id,
+                    'base': base,
+                    'quote': quote,
+                    'active': active,
+                    'precision': precision,
+                    'taker': this.safeFloat (market, 'taker_commission'),
+                    'maker': this.safeFloat (market, 'maker_commission'),
+                    'limits': {
+                        'amount': {
+                            'min': minTradeAmount,
+                            'max': undefined,
+                        },
+                        'price': {
+                            'min': tickSize,
+                            'max': undefined,
+                        },
+                        'cost': {
+                            'min': undefined,
+                            'max': undefined,
+                        },
+                    },
+                    'type': type,
+                    'spot': false,
+                    'future': future,
+                    'option': option,
+                    'info': market,
+                });
+            }
+        }
+        return result;
+    }
+
+    async fetchBalance (params = {}) {
+        await this.loadMarkets ();
+        const code = this.codeFromOptions ('fetchBalance');
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        const response = await this.privateGetGetAccountSummary (this.extend (request, params));
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: {
+        //             total_pl: 0,
+        //             session_upl: 0,
+        //             session_rpl: 0,
+        //             session_funding: 0,
+        //             portfolio_margining_enabled: false,
+        //             options_vega: 0,
+        //             options_theta: 0,
+        //             options_session_upl: 0,
+        //             options_session_rpl: 0,
+        //             options_pl: 0,
+        //             options_gamma: 0,
+        //             options_delta: 0,
+        //             margin_balance: 0.00062359,
+        //             maintenance_margin: 0,
+        //             limits: {
+        //                 non_matching_engine_burst: 300,
+        //                 non_matching_engine: 200,
+        //                 matching_engine_burst: 20,
+        //                 matching_engine: 2
+        //             },
+        //             initial_margin: 0,
+        //             futures_session_upl: 0,
+        //             futures_session_rpl: 0,
+        //             futures_pl: 0,
+        //             equity: 0.00062359,
+        //             deposit_address: '13tUtNsJSZa1F5GeCmwBywVrymHpZispzw',
+        //             delta_total: 0,
+        //             currency: 'BTC',
+        //             balance: 0.00062359,
+        //             available_withdrawal_funds: 0.00062359,
+        //             available_funds: 0.00062359
+        //         },
+        //         usIn: 1583775838115975,
+        //         usOut: 1583775838116520,
+        //         usDiff: 545,
+        //         testnet: false
+        //     }
+        //
+        const result = {
+            'info': response,
+        };
+        const balance = this.safeValue (response, 'result', {});
+        const account = this.account ();
+        account['free'] = this.safeFloat (balance, 'availableFunds');
+        account['used'] = this.safeFloat (balance, 'maintenanceMargin');
+        account['total'] = this.safeFloat (balance, 'equity');
+        result[code] = account;
+        return this.parseBalance (result);
+    }
+
+    async createDepositAddress (code, params = {}) {
+        await this.loadMarkets ();
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        const response = await this.privateGetCreateDepositAddress (this.extend (request, params));
+        //
+        //     {
+        //         'jsonrpc': '2.0',
+        //         'id': 7538,
+        //         'result': {
+        //             'address': '2N8udZGBc1hLRCFsU9kGwMPpmYUwMFTuCwB',
+        //             'creation_timestamp': 1550575165170,
+        //             'currency': 'BTC',
+        //             'type': 'deposit'
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const address = this.safeString (result, 'address');
+        this.checkAddress (address);
+        return {
+            'currency': code,
+            'address': address,
+            'tag': undefined,
+            'info': response,
+        };
+    }
+
+    async fetchDepositAddress (code, params = {}) {
+        await this.loadMarkets ();
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        const response = await this.privateGetGetCurrentDepositAddress (this.extend (request, params));
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: {
+        //             type: 'deposit',
+        //             status: 'ready',
+        //             requires_confirmation: true,
+        //             currency: 'BTC',
+        //             creation_timestamp: 1514694684651,
+        //             address: '13tUtNsJSZa1F5GeCmwBywVrymHpZispzw'
+        //         },
+        //         usIn: 1583785137274288,
+        //         usOut: 1583785137274454,
+        //         usDiff: 166,
+        //         testnet: false
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const address = this.safeString (result, 'address');
+        this.checkAddress (address);
+        return {
+            'currency': code,
+            'address': address,
+            'tag': undefined,
+            'info': response,
+        };
+    }
+
+    parseTicker (ticker, market = undefined) {
+        //
+        // fetchTicker /public/ticker
+        //
+        //     {
+        //         timestamp: 1583778859480,
+        //         stats: { volume: 60627.57263769, low: 7631.5, high: 8311.5 },
+        //         state: 'open',
+        //         settlement_price: 7903.21,
+        //         open_interest: 111543850,
+        //         min_price: 7634,
+        //         max_price: 7866.51,
+        //         mark_price: 7750.02,
+        //         last_price: 7750.5,
+        //         instrument_name: 'BTC-PERPETUAL',
+        //         index_price: 7748.01,
+        //         funding_8h: 0.0000026,
+        //         current_funding: 0,
+        //         best_bid_price: 7750,
+        //         best_bid_amount: 19470,
+        //         best_ask_price: 7750.5,
+        //         best_ask_amount: 343280
+        //     }
+        //
+        // fetchTicker /public/get_book_summary_by_instrument
+        // fetchTickers /public/get_book_summary_by_currency
+        //
+        //     {
+        //         volume: 124.1,
+        //         underlying_price: 7856.445926872601,
+        //         underlying_index: 'SYN.BTC-10MAR20',
+        //         quote_currency: 'USD',
+        //         open_interest: 121.8,
+        //         mid_price: 0.01975,
+        //         mark_price: 0.01984559,
+        //         low: 0.0095,
+        //         last: 0.0205,
+        //         interest_rate: 0,
+        //         instrument_name: 'BTC-10MAR20-7750-C',
+        //         high: 0.0295,
+        //         estimated_delivery_price: 7856.29,
+        //         creation_timestamp: 1583783678366,
+        //         bid_price: 0.0185,
+        //         base_currency: 'BTC',
+        //         ask_price: 0.021
+        //     },
+        //
+        const timestamp = this.safeInteger2 (ticker, 'timestamp', 'creation_timestamp');
+        const marketId = this.safeString (ticker, 'instrument_name');
+        let symbol = marketId;
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
+        }
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+        }
+        const last = this.safeFloat2 (ticker, 'last_price', 'last');
+        const stats = this.safeValue (ticker, 'stats', ticker);
+        return {
+            'symbol': symbol,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'high': this.safeFloat2 (stats, 'high', 'max_price'),
+            'low': this.safeFloat2 (stats, 'low', 'min_price'),
+            'bid': this.safeFloat2 (ticker, 'best_bid_price', 'bid_price'),
+            'bidVolume': this.safeFloat (ticker, 'best_bid_amount'),
+            'ask': this.safeFloat2 (ticker, 'best_ask_price', 'ask_price'),
+            'askVolume': this.safeFloat (ticker, 'best_ask_amount'),
+            'vwap': undefined,
+            'open': undefined,
+            'close': last,
+            'last': last,
+            'previousClose': undefined,
+            'change': undefined,
+            'percentage': undefined,
+            'average': undefined,
+            'baseVolume': undefined,
+            'quoteVolume': this.safeFloat (stats, 'volume'),
+            'info': ticker,
+        };
+    }
+
+    async fetchTicker (symbol, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'instrument_name': market['id'],
+        };
+        const response = await this.publicGetTicker (this.extend (request, params));
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: {
+        //             timestamp: 1583778859480,
+        //             stats: { volume: 60627.57263769, low: 7631.5, high: 8311.5 },
+        //             state: 'open',
+        //             settlement_price: 7903.21,
+        //             open_interest: 111543850,
+        //             min_price: 7634,
+        //             max_price: 7866.51,
+        //             mark_price: 7750.02,
+        //             last_price: 7750.5,
+        //             instrument_name: 'BTC-PERPETUAL',
+        //             index_price: 7748.01,
+        //             funding_8h: 0.0000026,
+        //             current_funding: 0,
+        //             best_bid_price: 7750,
+        //             best_bid_amount: 19470,
+        //             best_ask_price: 7750.5,
+        //             best_ask_amount: 343280
+        //         },
+        //         usIn: 1583778859483941,
+        //         usOut: 1583778859484075,
+        //         usDiff: 134,
+        //         testnet: false
+        //     }
+        //
+        const result = this.safeValue (response, 'result');
+        return this.parseTicker (result, market);
+    }
+
+    async fetchTickers (symbols = undefined, params = {}) {
+        await this.loadMarkets ();
+        const code = this.codeFromOptions ('fetchTickers');
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        const response = await this.publicGetGetBookSummaryByCurrency (this.extend (request, params));
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: [
+        //             {
+        //                 volume: 124.1,
+        //                 underlying_price: 7856.445926872601,
+        //                 underlying_index: 'SYN.BTC-10MAR20',
+        //                 quote_currency: 'USD',
+        //                 open_interest: 121.8,
+        //                 mid_price: 0.01975,
+        //                 mark_price: 0.01984559,
+        //                 low: 0.0095,
+        //                 last: 0.0205,
+        //                 interest_rate: 0,
+        //                 instrument_name: 'BTC-10MAR20-7750-C',
+        //                 high: 0.0295,
+        //                 estimated_delivery_price: 7856.29,
+        //                 creation_timestamp: 1583783678366,
+        //                 bid_price: 0.0185,
+        //                 base_currency: 'BTC',
+        //                 ask_price: 0.021
+        //             },
+        //         ],
+        //         usIn: 1583783678361966,
+        //         usOut: 1583783678372069,
+        //         usDiff: 10103,
+        //         testnet: false
+        //     }
+        //
+        const result = this.safeValue (response, 'result', []);
+        const tickers = {};
+        for (let i = 0; i < result.length; i++) {
+            const ticker = this.parseTicker (result[i]);
+            const symbol = ticker['symbol'];
+            tickers[symbol] = ticker;
+        }
+        return this.filterByArray (tickers, 'symbol', symbols);
+    }
+
+    async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'instrument_name': market['id'],
+            'resolution': this.timeframes[timeframe],
+        };
+        const duration = this.parseTimeframe (timeframe);
+        const now = this.milliseconds ();
+        if (since === undefined) {
+            if (limit === undefined) {
+                throw new ArgumentsRequired (this.id + ' fetchOHLCV requires a since argument or a limit argument');
+            } else {
+                request['start_timestamp'] = now - (limit - 1) * duration * 1000;
+                request['end_timestamp'] = now;
+            }
+        } else {
+            request['start_timestamp'] = since;
+            if (limit === undefined) {
+                request['end_timestamp'] = now;
+            } else {
+                request['end_timestamp'] = this.sum (since, limit * duration * 1000);
+            }
+        }
+        const response = await this.publicGetGetTradingviewChartData (this.extend (request, params));
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: {
+        //             volume: [ 3.6680847969999992, 22.682721123, 3.011587939, 0 ],
+        //             ticks: [ 1583916960000, 1583917020000, 1583917080000, 1583917140000 ],
+        //             status: 'ok',
+        //             open: [ 7834, 7839, 7833.5, 7833 ],
+        //             low: [ 7834, 7833.5, 7832.5, 7833 ],
+        //             high: [ 7839.5, 7839, 7833.5, 7833 ],
+        //             cost: [ 28740, 177740, 23590, 0 ],
+        //             close: [ 7839.5, 7833.5, 7833, 7833 ]
+        //         },
+        //         usIn: 1583917166709801,
+        //         usOut: 1583917166710175,
+        //         usDiff: 374,
+        //         testnet: false
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const ohlcvs = this.convertTradingViewToOHLCV (result, 'ticks', 'open', 'high', 'low', 'close', 'volume', true);
+        return this.parseOHLCVs (ohlcvs, market, timeframe, since, limit);
+    }
+
+    parseTrade (trade, market = undefined) {
+        //
+        // fetchTrades (public)
+        //
+        //     {
+        //         'trade_seq': 39201926,
+        //         'trade_id':' 64135724',
+        //         'timestamp': 1583174775400,
+        //         'tick_direction': 1,
+        //         'price': 8865.0,
+        //         'instrument_name': 'BTC-PERPETUAL',
+        //         'index_price': 8863.31,
+        //         'direction': 'buy',
+        //         'amount': 10.0
+        //     }
+        //
+        // fetchMyTrades, fetchOrderTrades (private)
+        //
+        //     {
+        //         "trade_seq": 3,
+        //         "trade_id": "ETH-34066",
+        //         "timestamp": 1550219814585,
+        //         "tick_direction": 1,
+        //         "state": "open",
+        //         "self_trade": false,
+        //         "reduce_only": false,
+        //         "price": 0.04,
+        //         "post_only": false,
+        //         "order_type": "limit",
+        //         "order_id": "ETH-334607",
+        //         "matching_id": null,
+        //         "liquidity": "M",
+        //         "iv": 56.83,
+        //         "instrument_name": "ETH-22FEB19-120-C",
+        //         "index_price": 121.37,
+        //         "fee_currency": "ETH",
+        //         "fee": 0.0011,
+        //         "direction": "buy",
+        //         "amount": 11
+        //     }
+        //
+        const id = this.safeString (trade, 'trade_id');
+        let symbol = undefined;
+        const marketId = this.safeString (trade, 'instrument_name');
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
+            symbol = market['symbol'];
+        }
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+        }
+        const timestamp = this.safeInteger (trade, 'timestamp');
+        const side = this.safeString (trade, 'direction');
+        const price = this.safeFloat (trade, 'price');
+        const amount = this.safeFloat (trade, 'amount');
+        let cost = undefined;
+        if (amount !== undefined) {
+            if (price !== undefined) {
+                cost = amount * price;
+            }
+        }
+        const liquidity = this.safeString (trade, 'liquidity');
+        let takerOrMaker = undefined;
+        if (liquidity !== undefined) {
+            // M = maker, T = taker, MT = both
+            takerOrMaker = (liquidity === 'M') ? 'maker' : 'taker';
+        }
+        const feeCost = this.safeFloat (trade, 'fee');
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            const feeCurrencyId = this.safeString (trade, 'fee_currency');
+            const feeCurrencyCode = this.safeCurrencyCode (feeCurrencyId);
+            fee = {
+                'cost': feeCost,
+                'currency': feeCurrencyCode,
+            };
+        }
+        return {
+            'id': id,
+            'info': trade,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'symbol': symbol,
+            'order': this.safeString (trade, 'order_id'),
+            'type': this.safeString (trade, 'order_type'),
+            'side': side,
+            'takerOrMaker': takerOrMaker,
+            'price': price,
+            'amount': amount,
+            'cost': cost,
+            'fee': fee,
+        };
+    }
+
+    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'instrument_name': market['id'],
+            'include_old': true,
+        };
+        const method = (since === undefined) ? 'publicGetGetLastTradesByInstrument' : 'publicGetGetLastTradesByInstrumentAndTime';
+        if (since !== undefined) {
+            request['start_timestamp'] = since;
+        }
+        if (limit !== undefined) {
+            request['count'] = limit; // default 10
+        }
+        const response = await this[method] (this.extend (request, params));
+        //
+        //     {
+        //         'jsonrpc': '2.0',
+        //         'result': {
+        //             'trades': [
+        //                 {
+        //                     'trade_seq': 39201926,
+        //                     'trade_id':' 64135724',
+        //                     'timestamp': 1583174775400,
+        //                     'tick_direction': 1,
+        //                     'price': 8865.0,
+        //                     'instrument_name': 'BTC-PERPETUAL',
+        //                     'index_price': 8863.31,
+        //                     'direction': 'buy',
+        //                     'amount': 10.0
+        //                 },
+        //             ],
+        //             'has_more': true,
+        //         },
+        //         'usIn': 1583779594843931,
+        //         'usOut': 1583779594844446,
+        //         'usDiff': 515,
+        //         'testnet': false
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const trades = this.safeValue (result, 'trades', []);
+        return this.parseTrades (trades, market, since, limit);
+    }
+
+    async fetchOrderBook (symbol, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'instrument_name': market['id'],
+        };
+        if (limit !== undefined) {
+            request['depth'] = limit;
+        }
+        const response = await this.publicGetGetOrderBook (this.extend (request, params));
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         result: {
+        //             timestamp: 1583781354740,
+        //             stats: { volume: 61249.66735634, low: 7631.5, high: 8311.5 },
+        //             state: 'open',
+        //             settlement_price: 7903.21,
+        //             open_interest: 111536690,
+        //             min_price: 7695.13,
+        //             max_price: 7929.49,
+        //             mark_price: 7813.06,
+        //             last_price: 7814.5,
+        //             instrument_name: 'BTC-PERPETUAL',
+        //             index_price: 7810.12,
+        //             funding_8h: 0.0000031,
+        //             current_funding: 0,
+        //             change_id: 17538025952,
+        //             bids: [
+        //                 [7814, 351820],
+        //                 [7813.5, 207490],
+        //                 [7813, 32160],
+        //             ],
+        //             best_bid_price: 7814,
+        //             best_bid_amount: 351820,
+        //             best_ask_price: 7814.5,
+        //             best_ask_amount: 11880,
+        //             asks: [
+        //                 [7814.5, 11880],
+        //                 [7815, 18100],
+        //                 [7815.5, 2640],
+        //             ],
+        //         },
+        //         usIn: 1583781354745804,
+        //         usOut: 1583781354745932,
+        //         usDiff: 128,
+        //         testnet: false
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const timestamp = this.safeInteger (result, 'timestamp');
+        const nonce = this.safeInteger (result, 'change_id');
+        const orderbook = this.parseOrderBook (result, timestamp);
+        orderbook['nonce'] = nonce;
+        return orderbook;
+    }
+
+    parseOrderStatus (status) {
+        const statuses = {
+            'open': 'open',
+            'cancelled': 'canceled',
+            'filled': 'closed',
+            'rejected': 'rejected',
+            // 'untriggered': 'open',
+        };
+        return this.safeString (statuses, status, status);
+    }
+
+    parseOrder (order, market = undefined) {
+        //
+        // createOrder
+        //
+        //     {
+        //         "time_in_force": "good_til_cancelled",
+        //         "reduce_only": false,
+        //         "profit_loss": 0,
+        //         "price": "market_price",
+        //         "post_only": false,
+        //         "order_type": "market",
+        //         "order_state": "filled",
+        //         "order_id": "ETH-349249",
+        //         "max_show": 40,
+        //         "last_update_timestamp": 1550657341322,
+        //         "label": "market0000234",
+        //         "is_liquidation": false,
+        //         "instrument_name": "ETH-PERPETUAL",
+        //         "filled_amount": 40,
+        //         "direction": "buy",
+        //         "creation_timestamp": 1550657341322,
+        //         "commission": 0.000139,
+        //         "average_price": 143.81,
+        //         "api": true,
+        //         "amount": 40,
+        //         "trades": [], // injected by createOrder
+        //     }
+        //
+        const timestamp = this.safeInteger (order, 'creation_timestamp');
+        const lastUpdate = this.safeInteger (order, 'last_update_timestamp');
+        const id = this.safeString (order, 'order_id');
+        const price = this.safeFloat (order, 'price');
+        const average = this.safeFloat (order, 'average_price');
+        const amount = this.safeFloat (order, 'amount');
+        const filled = this.safeFloat (order, 'filled_amount');
+        let lastTradeTimestamp = undefined;
+        if (filled !== undefined) {
+            if (filled > 0) {
+                lastTradeTimestamp = lastUpdate;
+            }
+        }
+        let remaining = undefined;
+        let cost = undefined;
+        if (filled !== undefined) {
+            if (amount !== undefined) {
+                remaining = amount - filled;
+            }
+            if (price !== undefined) {
+                cost = price * filled;
+            }
+        }
+        const status = this.parseOrderStatus (this.safeString (order, 'order_state'));
+        const marketId = this.safeString (order, 'instrument_name');
+        let symbol = undefined;
+        let base = undefined;
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
+            symbol = market['symbol'];
+            base = market['base'];
+        }
+        if (market !== undefined) {
+            if (symbol === undefined) {
+                symbol = market['symbol'];
+            }
+            if (base === undefined) {
+                base = market['base'];
+            }
+        }
+        const side = this.safeStringLower (order, 'direction');
+        let feeCost = this.safeFloat (order, 'commission');
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            feeCost = Math.abs (feeCost);
+            fee = {
+                'cost': feeCost,
+                'currency': base,
+            };
+        }
+        const type = this.safeString (order, 'order_type');
+        // injected in createOrder
+        let trades = this.safeValue (order, 'trades');
+        if (trades !== undefined) {
+            trades = this.parseTrades (trades, market);
+        }
+        return {
+            'info': order,
+            'id': id,
+            'clientOrderId': undefined,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'lastTradeTimestamp': lastTradeTimestamp,
+            'symbol': symbol,
+            'type': type,
+            'side': side,
+            'price': price,
+            'amount': amount,
+            'cost': cost,
+            'average': average,
+            'filled': filled,
+            'remaining': remaining,
+            'status': status,
+            'fee': fee,
+            'trades': trades,
+        };
+    }
+
+    async fetchOrder (id, symbol = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            'order_id': id,
+        };
+        const response = await this.privateGetGetOrderState (this.extend (request, params));
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 4316,
+        //         "result": {
+        //             "time_in_force": "good_til_cancelled",
+        //             "reduce_only": false,
+        //             "profit_loss": 0.051134,
+        //             "price": 118.94,
+        //             "post_only": false,
+        //             "order_type": "limit",
+        //             "order_state": "filled",
+        //             "order_id": "ETH-331562",
+        //             "max_show": 37,
+        //             "last_update_timestamp": 1550219810944,
+        //             "label": "",
+        //             "is_liquidation": false,
+        //             "instrument_name": "ETH-PERPETUAL",
+        //             "filled_amount": 37,
+        //             "direction": "sell",
+        //             "creation_timestamp": 1550219749176,
+        //             "commission": 0.000031,
+        //             "average_price": 118.94,
+        //             "api": false,
+        //             "amount": 37
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result');
+        return this.parseOrder (result);
+    }
+
+    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
+        await this.loadMarkets ();
+        const market = this.market (symbol);
+        const request = {
+            'instrument_name': market['id'],
+            // for perpetual and futures the amount is in USD
+            // for options it is in corresponding cryptocurrency contracts, e.g., BTC or ETH
+            'amount': this.amountToPrecision (symbol, amount),
+            'type': type, // limit, stop_limit, market, stop_market, default is limit
+            // 'label': 'string', // user-defined label for the order (maximum 64 characters)
+            // 'price': this.priceToPrecision (symbol, 123.45), // only for limit and stop_limit orders
+            // 'time_in_force' : 'good_til_cancelled', // fill_or_kill, immediate_or_cancel
+            // 'max_show': 123.45, // max amount within an order to be shown to other customers, 0 for invisible order
+            // 'post_only': false, // if the new price would cause the order to be filled immediately (as taker), the price will be changed to be just below the spread.
+            // 'reject_post_only': false, // if true the order is put to order book unmodified or request is rejected
+            // 'reduce_only': false, // if true, the order is intended to only reduce a current position
+            // 'stop_price': false, // stop price, required for stop_limit orders
+            // 'trigger': 'index_price', // mark_price, last_price, required for stop_limit orders
+            // 'advanced': 'usd', // 'implv', advanced option order type, options only
+        };
+        let priceIsRequired = false;
+        let stopPriceIsRequired = false;
+        if (type === 'limit') {
+            priceIsRequired = true;
+        } else if (type === 'stop_limit') {
+            priceIsRequired = true;
+            stopPriceIsRequired = true;
+        }
+        if (priceIsRequired) {
+            if (price !== undefined) {
+                request['price'] = this.priceToPrecision (symbol, price);
+            } else {
+                throw new ArgumentsRequired (this.id + ' createOrder requires a price argument for a ' + type + ' order');
+            }
+        }
+        if (stopPriceIsRequired) {
+            const stopPrice = this.safeFloat2 (params, 'stop_price', 'stopPrice');
+            if (stopPrice === undefined) {
+                throw new ArgumentsRequired (this.id + ' createOrder requires a stop_price or stopPrice param for a ' + type + ' order');
+            } else {
+                request['stop_price'] = this.priceToPrecision (symbol, stopPrice);
+            }
+        }
+        const method = 'privateGet' + this.capitalize (side);
+        const response = await this[method] (this.extend (request, params));
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 5275,
+        //         "result": {
+        //             "trades": [
+        //                 {
+        //                     "trade_seq": 14151,
+        //                     "trade_id": "ETH-37435",
+        //                     "timestamp": 1550657341322,
+        //                     "tick_direction": 2,
+        //                     "state": "closed",
+        //                     "self_trade": false,
+        //                     "price": 143.81,
+        //                     "order_type": "market",
+        //                     "order_id": "ETH-349249",
+        //                     "matching_id": null,
+        //                     "liquidity": "T",
+        //                     "label": "market0000234",
+        //                     "instrument_name": "ETH-PERPETUAL",
+        //                     "index_price": 143.73,
+        //                     "fee_currency": "ETH",
+        //                     "fee": 0.000139,
+        //                     "direction": "buy",
+        //                     "amount": 40
+        //                 }
+        //             ],
+        //             "order": {
+        //                 "time_in_force": "good_til_cancelled",
+        //                 "reduce_only": false,
+        //                 "profit_loss": 0,
+        //                 "price": "market_price",
+        //                 "post_only": false,
+        //                 "order_type": "market",
+        //                 "order_state": "filled",
+        //                 "order_id": "ETH-349249",
+        //                 "max_show": 40,
+        //                 "last_update_timestamp": 1550657341322,
+        //                 "label": "market0000234",
+        //                 "is_liquidation": false,
+        //                 "instrument_name": "ETH-PERPETUAL",
+        //                 "filled_amount": 40,
+        //                 "direction": "buy",
+        //                 "creation_timestamp": 1550657341322,
+        //                 "commission": 0.000139,
+        //                 "average_price": 143.81,
+        //                 "api": true,
+        //                 "amount": 40
+        //             }
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const order = this.safeValue (result, 'order');
+        const trades = this.safeValue (result, 'trades', []);
+        order['trades'] = trades;
+        return this.parseOrder (order, market);
+    }
+
+    async editOrder (id, symbol, type, side, amount = undefined, price = undefined, params = {}) {
+        if (amount === undefined) {
+            throw new ArgumentsRequired (this.id + ' editOrder requires an amount argument');
+        }
+        if (price === undefined) {
+            throw new ArgumentsRequired (this.id + ' editOrder requires a price argument');
+        }
+        await this.loadMarkets ();
+        const request = {
+            'order_id': id,
+            // for perpetual and futures the amount is in USD
+            // for options it is in corresponding cryptocurrency contracts, e.g., BTC or ETH
+            'amount': this.amountToPrecision (symbol, amount),
+            'price': this.priceToPrecision (symbol, price), // required
+            // 'post_only': false, // if the new price would cause the order to be filled immediately (as taker), the price will be changed to be just below the spread.
+            // 'reject_post_only': false, // if true the order is put to order book unmodified or request is rejected
+            // 'reduce_only': false, // if true, the order is intended to only reduce a current position
+            // 'stop_price': false, // stop price, required for stop_limit orders
+            // 'advanced': 'usd', // 'implv', advanced option order type, options only
+        };
+        const response = await this.privateGetEdit (this.extend (request, params));
+        const result = this.safeValue (response, 'result', {});
+        const order = this.safeValue (result, 'order');
+        const trades = this.safeValue (result, 'trades', []);
+        order['trades'] = trades;
+        return this.parseOrder (order);
+    }
+
+    async cancelOrder (id, symbol = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            'order_id': id,
+        };
+        const response = await this.privateGetCancel (this.extend (request, params));
+        const result = this.safeValue (response, 'result', {});
+        return this.parseOrder (result);
+    }
+
+    async cancelAllOrders (symbol = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {};
+        let method = undefined;
+        if (symbol === undefined) {
+            method = 'privateGetCancelAll';
+        } else {
+            method = 'privateGetCancelAllByInstrument';
+            const market = this.market (symbol);
+            request['instrument_name'] = market['id'];
+        }
+        const response = await this[method] (this.extend (request, params));
+        return response;
+    }
+
+    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {};
+        let market = undefined;
+        let method = undefined;
+        if (symbol === undefined) {
+            const code = this.codeFromOptions ('fetchOpenOrders');
+            const currency = this.currency (code);
+            request['currency'] = currency['id'];
+            method = 'privateGetGetOpenOrdersByCurrency';
+        } else {
+            market = this.market (symbol);
+            request['instrument_name'] = market['id'];
+            method = 'privateGetGetOpenOrdersByInstrument';
+        }
+        const response = await this[method] (this.extend (request, params));
+        const result = this.safeValue (response, 'result', []);
+        return this.parseOrders (result, market, since, limit);
+    }
+
+    async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {};
+        let market = undefined;
+        let method = undefined;
+        if (symbol === undefined) {
+            const code = this.codeFromOptions ('fetchClosedOrders');
+            const currency = this.currency (code);
+            request['currency'] = currency['id'];
+            method = 'privateGetGetOrderHistoryByCurrency';
+        } else {
+            market = this.market (symbol);
+            request['instrument_name'] = market['id'];
+            method = 'privateGetGetOrderHistoryByInstrument';
+        }
+        const response = await this[method] (this.extend (request, params));
+        const result = this.safeValue (response, 'result', []);
+        return this.parseOrders (result, market, since, limit);
+    }
+
+    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            'order_id': id,
+        };
+        const response = await this.privateGetGetUserTradesByOrder (this.extend (request, params));
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 9367,
+        //         "result": {
+        //             "trades": [
+        //                 {
+        //                     "trade_seq": 3,
+        //                     "trade_id": "ETH-34066",
+        //                     "timestamp": 1550219814585,
+        //                     "tick_direction": 1,
+        //                     "state": "open",
+        //                     "self_trade": false,
+        //                     "reduce_only": false,
+        //                     "price": 0.04,
+        //                     "post_only": false,
+        //                     "order_type": "limit",
+        //                     "order_id": "ETH-334607",
+        //                     "matching_id": null,
+        //                     "liquidity": "M",
+        //                     "iv": 56.83,
+        //                     "instrument_name": "ETH-22FEB19-120-C",
+        //                     "index_price": 121.37,
+        //                     "fee_currency": "ETH",
+        //                     "fee": 0.0011,
+        //                     "direction": "buy",
+        //                     "amount": 11
+        //                 },
+        //             ],
+        //             "has_more": true
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const trades = this.safeValue (result, 'trades', []);
+        return this.parseTrades (trades, undefined, since, limit);
+    }
+
+    async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        await this.loadMarkets ();
+        const request = {
+            'include_old': true,
+        };
+        let market = undefined;
+        let method = undefined;
+        if (symbol === undefined) {
+            const code = this.codeFromOptions ('fetchMyTrades');
+            const currency = this.currency (code);
+            request['currency'] = currency['id'];
+            if (since === undefined) {
+                method = 'privateGetGetUserTradesByCurrency';
+            } else {
+                method = 'privateGetGetUserTradesByCurrencyAndTime';
+                request['start_timestamp'] = since;
+            }
+        } else {
+            market = this.market (symbol);
+            request['instrument_name'] = market['id'];
+            if (since === undefined) {
+                method = 'privateGetGetUserTradesByInstrument';
+            } else {
+                method = 'privateGetGetUserTradesByInstrumentAndTime';
+                request['start_timestamp'] = since;
+            }
+        }
+        if (limit !== undefined) {
+            request['count'] = limit; // default 10
+        }
+        const response = await this[method] (this.extend (request, params));
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 9367,
+        //         "result": {
+        //             "trades": [
+        //                 {
+        //                     "trade_seq": 3,
+        //                     "trade_id": "ETH-34066",
+        //                     "timestamp": 1550219814585,
+        //                     "tick_direction": 1,
+        //                     "state": "open",
+        //                     "self_trade": false,
+        //                     "reduce_only": false,
+        //                     "price": 0.04,
+        //                     "post_only": false,
+        //                     "order_type": "limit",
+        //                     "order_id": "ETH-334607",
+        //                     "matching_id": null,
+        //                     "liquidity": "M",
+        //                     "iv": 56.83,
+        //                     "instrument_name": "ETH-22FEB19-120-C",
+        //                     "index_price": 121.37,
+        //                     "fee_currency": "ETH",
+        //                     "fee": 0.0011,
+        //                     "direction": "buy",
+        //                     "amount": 11
+        //                 },
+        //             ],
+        //             "has_more": true
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const trades = this.safeValue (result, 'trades', []);
+        return this.parseTrades (trades, market, since, limit);
+    }
+
+    async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
+        if (code === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchDeposits() requires a currency code argument');
+        }
+        await this.loadMarkets ();
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        if (limit !== undefined) {
+            request['count'] = limit;
+        }
+        const response = await this.privateGetGetDeposits (this.extend (request, params));
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 5611,
+        //         "result": {
+        //             "count": 1,
+        //             "data": [
+        //                 {
+        //                     "address": "2N35qDKDY22zmJq9eSyiAerMD4enJ1xx6ax",
+        //                     "amount": 5,
+        //                     "currency": "BTC",
+        //                     "received_timestamp": 1549295017670,
+        //                     "state": "completed",
+        //                     "transaction_id": "230669110fdaf0a0dbcdc079b6b8b43d5af29cc73683835b9bc6b3406c065fda",
+        //                     "updated_timestamp": 1549295130159
+        //                 }
+        //             ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseTransactions (data, currency, since, limit, params);
+    }
+
+    async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
+        if (code === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchWithdrawals() requires a currency code argument');
+        }
+        await this.loadMarkets ();
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+        };
+        if (limit !== undefined) {
+            request['count'] = limit;
+        }
+        const response = await this.privateGetGetWithdrawals (this.extend (request, params));
+        //
+        //     {
+        //         "jsonrpc": "2.0",
+        //         "id": 2745,
+        //         "result": {
+        //             "count": 1,
+        //             "data": [
+        //                 {
+        //                     "address": "2NBqqD5GRJ8wHy1PYyCXTe9ke5226FhavBz",
+        //                     "amount": 0.5,
+        //                     "confirmed_timestamp": null,
+        //                     "created_timestamp": 1550571443070,
+        //                     "currency": "BTC",
+        //                     "fee": 0.0001,
+        //                     "id": 1,
+        //                     "priority": 0.15,
+        //                     "state": "unconfirmed",
+        //                     "transaction_id": null,
+        //                     "updated_timestamp": 1550571443070
+        //                 }
+        //             ]
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const data = this.safeValue (result, 'data', []);
+        return this.parseTransactions (data, currency, since, limit, params);
+    }
+
+    parseTransactionStatus (status) {
+        const statuses = {
+            'completed': 'ok',
+            'unconfirmed': 'pending',
+        };
+        return this.safeString (statuses, status, status);
+    }
+
+    parseTransaction (transaction, currency = undefined) {
+        //
+        // fetchWithdrawals
+        //
+        //     {
+        //         "address": "2NBqqD5GRJ8wHy1PYyCXTe9ke5226FhavBz",
+        //         "amount": 0.5,
+        //         "confirmed_timestamp": null,
+        //         "created_timestamp": 1550571443070,
+        //         "currency": "BTC",
+        //         "fee": 0.0001,
+        //         "id": 1,
+        //         "priority": 0.15,
+        //         "state": "unconfirmed",
+        //         "transaction_id": null,
+        //         "updated_timestamp": 1550571443070
+        //     }
+        //
+        // fetchDeposits
+        //
+        //     {
+        //         "address": "2N35qDKDY22zmJq9eSyiAerMD4enJ1xx6ax",
+        //         "amount": 5,
+        //         "currency": "BTC",
+        //         "received_timestamp": 1549295017670,
+        //         "state": "completed",
+        //         "transaction_id": "230669110fdaf0a0dbcdc079b6b8b43d5af29cc73683835b9bc6b3406c065fda",
+        //         "updated_timestamp": 1549295130159
+        //     }
+        //
+        const currencyId = this.safeString (transaction, 'currency');
+        const code = this.safeCurrencyCode (currencyId, currency);
+        const timestamp = this.safeInteger2 (transaction, 'created_timestamp', 'received_timestamp');
+        const updated = this.safeInteger (transaction, 'updated_timestamp');
+        const status = this.parseTransactionStatus (this.safeString (transaction, 'state'));
+        const address = this.safeString (transaction, 'address');
+        const feeCost = this.safeFloat (transaction, 'fee');
+        let type = 'deposit';
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            type = 'withdrawal';
+            fee = {
+                'cost': feeCost,
+                'currency': code,
+            };
+        }
+        return {
+            'info': transaction,
+            'id': this.safeString (transaction, 'id'),
+            'txid': this.safeString (transaction, 'transaction_id'),
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'address': address,
+            'addressTo': address,
+            'addressFrom': undefined,
+            'tag': undefined,
+            'tagTo': undefined,
+            'tagFrom': undefined,
+            'type': type,
+            'amount': this.safeFloat (transaction, 'amount'),
+            'currency': code,
+            'status': status,
+            'updated': updated,
+            'fee': fee,
+        };
+    }
+
+    async withdraw (code, amount, address, tag = undefined, params = {}) {
+        this.checkAddress (address);
+        await this.loadMarkets ();
+        const currency = this.currency (code);
+        const request = {
+            'currency': currency['id'],
+            'address': address, // must be in the address book
+            'amount': amount,
+            // 'priority': 'high', // low, mid, high, very_high, extreme_high, insane
+            // 'tfa': '123456', // if enabled
+        };
+        if (this.twofa !== undefined) {
+            request['tfa'] = this.oath ();
+        }
+        const response = await this.privateGetWithdraw (this.extend (request, params));
+        return {
+            'info': response,
+            'id': this.safeString (response, 'id'),
+        };
+    }
+
+    nonce () {
+        return this.milliseconds ();
+    }
+
+    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
+        let request = '/' + 'api/' + this.version + '/' + api + '/' + path;
+        if (api === 'public') {
+            if (Object.keys (params).length) {
+                request += '?' + this.urlencode (params);
+            }
+        }
+        if (api === 'private') {
+            this.checkRequiredCredentials ();
+            const nonce = this.nonce ().toString ();
+            const timestamp = this.milliseconds ().toString ();
+            const requestBody = '';
+            if (Object.keys (params).length) {
+                request += '?' + this.urlencode (params);
+            }
+            const requestData = method + "\n" + request + "\n" + requestBody + "\n"; // eslint-disable-line quotes
+            const auth = timestamp + "\n" + nonce + "\n" + requestData; // eslint-disable-line quotes
+            const signature = this.hmac (this.encode (auth), this.encode (this.secret), 'sha256');
+            headers = {
+                'Authorization': 'deri-hmac-sha256 id=' + this.apiKey + ',ts=' + timestamp + ',sig=' + signature + ',' + 'nonce=' + nonce,
+            };
+        }
+        const url = this.urls['api'] + request;
+        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
+    }
+
+    handleErrors (httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody) {
+        if (!response) {
+            return; // fallback to default error handler
+        }
+        //
+        //     {
+        //         jsonrpc: '2.0',
+        //         error: {
+        //             message: 'Invalid params',
+        //             data: { reason: 'invalid currency', param: 'currency' },
+        //             code: -32602
+        //         },
+        //         testnet: false,
+        //         usIn: 1583763842150374,
+        //         usOut: 1583763842150410,
+        //         usDiff: 36
+        //     }
+        //
+        const error = this.safeValue (response, 'error');
+        if (error !== undefined) {
+            const errorCode = this.safeString (error, 'code');
+            const feedback = this.id + ' ' + body;
+            this.throwExactlyMatchedException (this.exceptions, errorCode, feedback);
+            throw new ExchangeError (feedback); // unknown message
+        }
+    }
+};
diff --git a/WebServer/node_modules/ccxt/js/digifinex.js b/BackendServers/node_modules/ccxt/js/digifinex.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/digifinex.js
rename to BackendServers/node_modules/ccxt/js/digifinex.js
index 3f80e444d..53c23d198 100644
--- a/WebServer/node_modules/ccxt/js/digifinex.js
+++ b/BackendServers/node_modules/ccxt/js/digifinex.js
@@ -849,6 +849,7 @@ module.exports = class digifinex extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -863,6 +864,7 @@ module.exports = class digifinex extends Exchange {
             'average': average,
             'status': status,
             'fee': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/dsx.js b/BackendServers/node_modules/ccxt/js/dsx.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/dsx.js
rename to BackendServers/node_modules/ccxt/js/dsx.js
index b37bcf6c3..b8aca2bbb 100644
--- a/WebServer/node_modules/ccxt/js/dsx.js
+++ b/BackendServers/node_modules/ccxt/js/dsx.js
@@ -32,7 +32,7 @@ module.exports = class dsx extends Exchange {
                 'withdraw': true,
             },
             'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27990275-1413158a-645a-11e7-931c-94717f7510e3.jpg',
+                'logo': 'https://user-images.githubusercontent.com/51840849/76909626-cb2bb100-68bc-11ea-99e0-28ba54f04792.jpg',
                 'api': {
                     'public': 'https://dsx.uk/mapi', // market data
                     'private': 'https://dsx.uk/tapi', // trading
@@ -714,6 +714,9 @@ module.exports = class dsx extends Exchange {
             'filled': filled,
             'fee': undefined,
             // 'trades': this.parseTrades (order['trades'], market),
+            'clientOrderId': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
@@ -825,6 +828,7 @@ module.exports = class dsx extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -839,6 +843,7 @@ module.exports = class dsx extends Exchange {
             'status': status,
             'fee': fee,
             'trades': trades,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/exmo.js b/BackendServers/node_modules/ccxt/js/exmo.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/exmo.js
rename to BackendServers/node_modules/ccxt/js/exmo.js
index abb8ca3a2..dcf0f2036 100644
--- a/WebServer/node_modules/ccxt/js/exmo.js
+++ b/BackendServers/node_modules/ccxt/js/exmo.js
@@ -420,6 +420,7 @@ module.exports = class exmo extends Exchange {
                     '40015': ExchangeError, // API function do not exist
                     '40016': OnMaintenance, // {"result":false,"error":"Error 40016: Maintenance work in progress"}
                     '40017': AuthenticationError, // Wrong API Key
+                    '40034': RateLimitExceeded, // {"result":false,"error":"Error 40034: Access is denied, rate limit is exceeded"}
                     '50052': InsufficientFunds,
                     '50054': InsufficientFunds,
                     '50304': OrderNotFound, // "Order was not found '123456789'" (fetching order trades for an order that does not have trades yet)
@@ -899,6 +900,8 @@ module.exports = class exmo extends Exchange {
             'filled': 0.0,
             'fee': undefined,
             'trades': undefined,
+            'clientOrderId': undefined,
+            'average': undefined,
         };
         this.orders[id] = order;
         return order;
@@ -1166,6 +1169,7 @@ module.exports = class exmo extends Exchange {
         };
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': lastTradeTimestamp,
diff --git a/WebServer/node_modules/ccxt/js/exx.js b/BackendServers/node_modules/ccxt/js/exx.js
similarity index 96%
rename from WebServer/node_modules/ccxt/js/exx.js
rename to BackendServers/node_modules/ccxt/js/exx.js
index 0fd106329..545adaabb 100644
--- a/WebServer/node_modules/ccxt/js/exx.js
+++ b/BackendServers/node_modules/ccxt/js/exx.js
@@ -272,6 +272,20 @@ module.exports = class exx extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "fees": 0,
+        //         "total_amount": 1,
+        //         "trade_amount": 0,
+        //         "price": 30,
+        //         "currency": “eth_hsr",
+        //         "id": "13878",
+        //         "trade_money": 0,
+        //         "type": "buy",
+        //         "trade_date": 1509728897772,
+        //         "status": 0
+        //     }
+        //
         const symbol = market['symbol'];
         const timestamp = parseInt (order['trade_date']);
         const price = this.safeFloat (order, 'price');
@@ -296,6 +310,7 @@ module.exports = class exx extends Exchange {
         }
         return {
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -311,6 +326,7 @@ module.exports = class exx extends Exchange {
             'trades': undefined,
             'fee': fee,
             'info': order,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/fcoin.js b/BackendServers/node_modules/ccxt/js/fcoin.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/fcoin.js
rename to BackendServers/node_modules/ccxt/js/fcoin.js
index 692eca143..871186527 100644
--- a/WebServer/node_modules/ccxt/js/fcoin.js
+++ b/BackendServers/node_modules/ccxt/js/fcoin.js
@@ -514,6 +514,22 @@ module.exports = class fcoin extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "id": "string",
+        //         "symbol": "string",
+        //         "type": "limit",
+        //         "side": "buy",
+        //         "price": "string",
+        //         "amount": "string",
+        //         "state": "submitted",
+        //         "executed_value": "string",
+        //         "fill_fees": "string",
+        //         "filled_amount": "string",
+        //         "created_at": 0,
+        //         "source": "web"
+        //     }
+        //
         const id = this.safeString (order, 'id');
         const side = this.safeString (order, 'side');
         const status = this.parseOrderStatus (this.safeString (order, 'state'));
@@ -562,6 +578,7 @@ module.exports = class fcoin extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
diff --git a/WebServer/node_modules/ccxt/js/fcoinjp.js b/BackendServers/node_modules/ccxt/js/fcoinjp.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/fcoinjp.js
rename to BackendServers/node_modules/ccxt/js/fcoinjp.js
diff --git a/WebServer/node_modules/ccxt/js/flowbtc.js b/BackendServers/node_modules/ccxt/js/flowbtc.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/flowbtc.js
rename to BackendServers/node_modules/ccxt/js/flowbtc.js
index 8838561c0..d4ca90c05 100644
--- a/WebServer/node_modules/ccxt/js/flowbtc.js
+++ b/BackendServers/node_modules/ccxt/js/flowbtc.js
@@ -108,6 +108,7 @@ module.exports = class flowbtc extends Exchange {
                     },
                 },
                 'info': market,
+                'active': undefined,
             };
         }
         return result;
@@ -197,6 +198,8 @@ module.exports = class flowbtc extends Exchange {
             'price': price,
             'amount': amount,
             'cost': cost,
+            'takerOrMaker': undefined,
+            'fee': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/foxbit.js b/BackendServers/node_modules/ccxt/js/foxbit.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/foxbit.js
rename to BackendServers/node_modules/ccxt/js/foxbit.js
diff --git a/WebServer/node_modules/ccxt/js/ftx.js b/BackendServers/node_modules/ccxt/js/ftx.js
similarity index 94%
rename from WebServer/node_modules/ccxt/js/ftx.js
rename to BackendServers/node_modules/ccxt/js/ftx.js
index b3f1d05c0..8237d20e1 100644
--- a/WebServer/node_modules/ccxt/js/ftx.js
+++ b/BackendServers/node_modules/ccxt/js/ftx.js
@@ -16,10 +16,14 @@ module.exports = class ftx extends Exchange {
             'countries': [ 'HK' ],
             'rateLimit': 100,
             'certified': true,
+            'pro': true,
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/67149189-df896480-f2b0-11e9-8816-41593e17f9ec.jpg',
                 'www': 'https://ftx.com',
-                'api': 'https://ftx.com',
+                'api': {
+                    'public': 'https://ftx.com',
+                    'private': 'https://ftx.com',
+                },
                 'doc': 'https://github.com/ftexchange/ftx',
                 'fees': 'https://ftexchange.zendesk.com/hc/en-us/articles/360024479432-Fees',
                 'referral': 'https://ftx.com/#a=1623029',
@@ -159,6 +163,19 @@ module.exports = class ftx extends Exchange {
                 },
             },
             'precisionMode': TICK_SIZE,
+            'options': {
+                // support for canceling conditional orders
+                // https://github.com/ccxt/ccxt/issues/6669
+                'cancelOrder': {
+                    'method': 'privateDeleteOrdersOrderId', // privateDeleteConditionalOrdersOrderId
+                },
+                'fetchOpenOrders': {
+                    'method': 'privateGetOrders', // privateGetConditionalOrders
+                },
+                'fetchOrders': {
+                    'method': 'privateGetOrdersHistory', // privateGetConditionalOrdersHistory
+                },
+            },
         });
     }
 
@@ -334,14 +351,16 @@ module.exports = class ftx extends Exchange {
             } else {
                 const base = this.safeCurrencyCode (this.safeString (ticker, 'baseCurrency'));
                 const quote = this.safeCurrencyCode (this.safeString (ticker, 'quoteCurrency'));
-                symbol = base + '/' + quote;
+                if ((base !== undefined) && (quote !== undefined)) {
+                    symbol = base + '/' + quote;
+                }
             }
         }
         if ((symbol === undefined) && (market !== undefined)) {
             symbol = market['symbol'];
         }
         const last = this.safeFloat (ticker, 'last');
-        const timestamp = this.milliseconds ();
+        const timestamp = this.safeTimestamp (ticker, 'time', this.milliseconds ());
         return {
             'symbol': symbol,
             'timestamp': timestamp,
@@ -349,9 +368,9 @@ module.exports = class ftx extends Exchange {
             'high': this.safeFloat (ticker, 'high'),
             'low': this.safeFloat (ticker, 'low'),
             'bid': this.safeFloat (ticker, 'bid'),
-            'bidVolume': undefined,
+            'bidVolume': this.safeFloat (ticker, 'bidSize'),
             'ask': this.safeFloat (ticker, 'ask'),
-            'askVolume': undefined,
+            'askVolume': this.safeFloat (ticker, 'askSize'),
             'vwap': undefined,
             'open': undefined,
             'close': last,
@@ -845,9 +864,11 @@ module.exports = class ftx extends Exchange {
             cost = filled * price;
         }
         const lastTradeTimestamp = this.parse8601 (this.safeString (order, 'triggeredAt'));
+        const clientOrderId = this.safeString (order, 'clientId');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -960,7 +981,17 @@ module.exports = class ftx extends Exchange {
         const request = {
             'order_id': parseInt (id),
         };
-        const response = await this.privateDeleteOrdersOrderId (this.extend (request, params));
+        // support for canceling conditional orders
+        // https://github.com/ccxt/ccxt/issues/6669
+        const options = this.safeValue (this.options, 'cancelOrder', {});
+        const defaultMethod = this.safeString (options, 'method', 'privateDeleteOrdersOrderId');
+        let method = this.safeString (params, 'method', defaultMethod);
+        const type = this.safeValue (params, 'type');
+        if ((type === 'stop') || (type === 'trailingStop') || (type === 'takeProfit')) {
+            method = 'privateDeleteConditionalOrdersOrderId';
+        }
+        const query = this.omit (params, [ 'method', 'type' ]);
+        const response = await this[method] (this.extend (request, query));
         //
         //     {
         //         "success": true,
@@ -1035,7 +1066,17 @@ module.exports = class ftx extends Exchange {
             market = this.market (symbol);
             request['market'] = market['id'];
         }
-        const response = await this.privateGetOrders (this.extend (request, params));
+        // support for canceling conditional orders
+        // https://github.com/ccxt/ccxt/issues/6669
+        const options = this.safeValue (this.options, 'fetchOpenOrders', {});
+        const defaultMethod = this.safeString (options, 'method', 'privateGetOrders');
+        let method = this.safeString (params, 'method', defaultMethod);
+        const type = this.safeValue (params, 'type');
+        if ((type === 'stop') || (type === 'trailingStop') || (type === 'takeProfit')) {
+            method = 'privateGetConditionalOrders';
+        }
+        const query = this.omit (params, [ 'method', 'type' ]);
+        const response = await this[method] (this.extend (request, query));
         //
         //     {
         //         "success": true,
@@ -1079,7 +1120,17 @@ module.exports = class ftx extends Exchange {
         if (since !== undefined) {
             request['start_time'] = parseInt (since / 1000);
         }
-        const response = await this.privateGetOrdersHistory (this.extend (request, params));
+        // support for canceling conditional orders
+        // https://github.com/ccxt/ccxt/issues/6669
+        const options = this.safeValue (this.options, 'fetchOrders', {});
+        const defaultMethod = this.safeString (options, 'method', 'privateGetOrdersHistory');
+        let method = this.safeString (params, 'method', defaultMethod);
+        const type = this.safeValue (params, 'type');
+        if ((type === 'stop') || (type === 'trailingStop') || (type === 'takeProfit')) {
+            method = 'privateGetConditionalOrdersHistory';
+        }
+        const query = this.omit (params, [ 'method', 'type' ]);
+        const response = await this[method] (this.extend (request, query));
         //
         //     {
         //         "success": true,
@@ -1336,7 +1387,7 @@ module.exports = class ftx extends Exchange {
     sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
         let request = '/api/' + this.implodeParams (path, params);
         const query = this.omit (params, this.extractParams (path));
-        let url = this.urls['api'] + request;
+        let url = this.urls['api'][api] + request;
         if (method !== 'POST') {
             if (Object.keys (query).length) {
                 const suffix = '?' + this.urlencode (query);
diff --git a/WebServer/node_modules/ccxt/js/fybse.js b/BackendServers/node_modules/ccxt/js/fybse.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/fybse.js
rename to BackendServers/node_modules/ccxt/js/fybse.js
diff --git a/WebServer/node_modules/ccxt/js/gateio.js b/BackendServers/node_modules/ccxt/js/gateio.js
similarity index 92%
rename from WebServer/node_modules/ccxt/js/gateio.js
rename to BackendServers/node_modules/ccxt/js/gateio.js
index 0c1751684..f35aa8869 100644
--- a/WebServer/node_modules/ccxt/js/gateio.js
+++ b/BackendServers/node_modules/ccxt/js/gateio.js
@@ -155,6 +155,10 @@ module.exports = class gateio extends Exchange {
                     },
                 },
             },
+            'commonCurrencies': {
+                'BTCBEAR': 'BEAR',
+                'BTCBULL': 'BULL',
+            },
         });
     }
 
@@ -480,22 +484,64 @@ module.exports = class gateio extends Exchange {
 
     parseOrder (order, market = undefined) {
         //
-        //    {'amount': '0.00000000',
-        //     'currencyPair': 'xlm_usdt',
-        //     'fee': '0.0113766632239302 USDT',
-        //     'feeCurrency': 'USDT',
-        //     'feePercentage': 0.18,
-        //     'feeValue': '0.0113766632239302',
-        //     'filledAmount': '30.14004987',
-        //     'filledRate': 0.2097,
-        //     'initialAmount': '30.14004987',
-        //     'initialRate': '0.2097',
-        //     'left': 0,
-        //     'orderNumber': '998307286',
-        //     'rate': '0.2097',
-        //     'status': 'closed',
-        //     'timestamp': 1531158583,
-        //     'type': 'sell'},
+        // createOrder
+        //
+        //     {
+        //        "fee": "0 ZEC",
+        //         "code": 0,
+        //         "rate": "0.0055",
+        //         "side": 2,
+        //         "type": "buy",
+        //         "ctime": 1586460839.138,
+        //         "market": "ZEC_BTC",
+        //         "result": "true",
+        //         "status": "open",
+        //         "iceberg": "0",
+        //         "message": "Success",
+        //         "feeValue": "0",
+        //         "filledRate": "0.005500000",
+        //         "leftAmount": "0.60607456",
+        //         "feeCurrency": "ZEC",
+        //         "orderNumber": 10755887009,
+        //         "filledAmount": "0",
+        //         "feePercentage": 0.002,
+        //         "initialAmount": "0.60607456"
+        //     }
+        //
+        //     {
+        //         'amount': '0.00000000',
+        //         'currencyPair': 'xlm_usdt',
+        //         'fee': '0.0113766632239302 USDT',
+        //         'feeCurrency': 'USDT',
+        //         'feePercentage': 0.18,
+        //         'feeValue': '0.0113766632239302',
+        //         'filledAmount': '30.14004987',
+        //         'filledRate': 0.2097,
+        //         'initialAmount': '30.14004987',
+        //         'initialRate': '0.2097',
+        //         'left': 0,
+        //         'orderNumber': '998307286',
+        //         'rate': '0.2097',
+        //         'status': 'closed',
+        //         'timestamp': 1531158583,
+        //         'type': 'sell'
+        //     }
+        //
+        //     {
+        //         "orderNumber": 10802237760,
+        //         "orderType": 1,
+        //         "type": "buy",
+        //         "rate": "0.54250000",
+        //         "amount": "45.55638518",
+        //         "total": "24.71433896",
+        //         "initialRate": "0.54250000",
+        //         "initialAmount": "45.55638518",
+        //         "filledRate": "0.54250000",
+        //         "filledAmount": "0",
+        //         "currencyPair": "nano_usdt",
+        //         "timestamp": 1586556143,
+        //         "status": "open"
+        //     }
         //
         const id = this.safeString2 (order, 'orderNumber', 'id');
         let symbol = undefined;
@@ -516,12 +562,15 @@ module.exports = class gateio extends Exchange {
         } else if (side === '2') {
             side = 'buy';
         }
-        const price = this.safeFloat2 (order, 'initialRate', 'price');
+        const price = this.safeFloat2 (order, 'initialRate', 'rate');
         const average = this.safeFloat (order, 'filledRate');
         const amount = this.safeFloat2 (order, 'initialAmount', 'amount');
         const filled = this.safeFloat (order, 'filledAmount');
         // In the order status response, this field has a different name.
-        const remaining = this.safeFloat2 (order, 'leftAmount', 'left');
+        let remaining = this.safeFloat2 (order, 'leftAmount', 'left');
+        if (remaining === undefined) {
+            remaining = amount - filled;
+        }
         const feeCost = this.safeFloat (order, 'feeValue');
         const feeCurrencyId = this.safeString (order, 'feeCurrency');
         const feeCurrencyCode = this.safeCurrencyCode (feeCurrencyId);
@@ -531,6 +580,7 @@ module.exports = class gateio extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -646,7 +696,7 @@ module.exports = class gateio extends Exchange {
 
     async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
         if (symbol === undefined) {
-            throw new ArgumentsRequired (this.id + ' fetchMyTrades requires symbol param');
+            throw new ArgumentsRequired (this.id + ' fetchMyTrades requires symbol argument');
         }
         await this.loadMarkets ();
         const market = this.market (symbol);
diff --git a/WebServer/node_modules/ccxt/js/gemini.js b/BackendServers/node_modules/ccxt/js/gemini.js
similarity index 89%
rename from WebServer/node_modules/ccxt/js/gemini.js
rename to BackendServers/node_modules/ccxt/js/gemini.js
index 1c394e87f..6e07ab638 100644
--- a/WebServer/node_modules/ccxt/js/gemini.js
+++ b/BackendServers/node_modules/ccxt/js/gemini.js
@@ -180,8 +180,7 @@ module.exports = class gemini extends Exchange {
         if (numTables < 2) {
             throw new NotSupported (error);
         }
-        // tables[1] = tables[1].replace ("\n", ''); // eslint-disable-line quotes
-        const rows = tables[1].split ("<tr>\n"); // eslint-disable-line quotes
+        const rows = tables[1].split ("\n<tr>\n"); // eslint-disable-line quotes
         const numRows = rows.length;
         if (numRows < 2) {
             throw new NotSupported (error);
@@ -192,66 +191,73 @@ module.exports = class gemini extends Exchange {
             const row = rows[i];
             const cells = row.split ("</td>\n"); // eslint-disable-line quotes
             const numCells = cells.length;
-            if (numCells < 7) {
+            if (numCells < 9) {
                 throw new NotSupported (error);
             }
-            //
             //     [
-            //         '<td><code class="prettyprint">btcusd</code>',
-            //         '<td>USD', // quote
-            //         '<td>BTC', // base
-            //         '<td>0.00001 BTC (1e-5)', // min amount
-            //         '<td>0.00000001 BTC (1e-8)', // amount min tick size
-            //         '<td>0.01 USD', // price min tick size
-            //         '</tr>\n'
+            //         '<td>BTC', // currency
+            //         '<td>0.00001 BTC (1e-5)', // min order size
+            //         '<td>0.00000001 BTC (1e-8)', // tick size
+            //         '<td>0.01 USD', // usd price increment
+            //         '<td>N/A', // btc price increment
+            //         '<td>0.0001 ETH (1e-4)', // eth price increment
+            //         '<td>0.0001 BCH (1e-4)', // bch price increment
+            //         '<td>0.001 LTC (1e-3)', // ltc price increment
+            //         '</tr>'
             //     ]
             //
-            let id = cells[0].replace ('<td>', '');
-            id = id.replace ('<code class="prettyprint">', '');
-            id = id.replace ('</code>', '');
-            let baseId = cells[2].replace ('<td>', '');
-            let quoteId = cells[1].replace ('<td>', '');
-            const minAmountAsString = cells[3].replace ('<td>', '');
-            const amountTickSizeAsString = cells[4].replace ('<td>', '');
-            const priceTickSizeAsString = cells[5].replace ('<td>', '');
-            const minAmount = minAmountAsString.split (' ');
-            const amountPrecision = amountTickSizeAsString.split (' ');
-            const pricePrecision = priceTickSizeAsString.split (' ');
-            baseId = baseId.toLowerCase ();
-            quoteId = quoteId.toLowerCase ();
+            const uppercaseBaseId = cells[0].replace ('<td>', '');
+            const baseId = uppercaseBaseId.toLowerCase ();
             const base = this.safeCurrencyCode (baseId);
-            const quote = this.safeCurrencyCode (quoteId);
-            const symbol = base + '/' + quote;
-            const precision = {
-                'amount': this.precisionFromString (amountPrecision[0]),
-                'price': this.precisionFromString (pricePrecision[0]),
-            };
-            const active = undefined;
-            result.push ({
-                'id': id,
-                'info': row,
-                'symbol': symbol,
-                'base': base,
-                'quote': quote,
-                'baseId': baseId,
-                'quoteId': quoteId,
-                'active': active,
-                'precision': precision,
-                'limits': {
-                    'amount': {
-                        'min': parseFloat (minAmount[0]),
-                        'max': undefined,
+            const quoteIds = [ 'usd', 'btc', 'eth', 'bch', 'ltc' ];
+            const minAmountString = cells[1].replace ('<td>', '');
+            const minAmountParts = minAmountString.split (' ');
+            const minAmount = this.safeFloat (minAmountParts, 0);
+            const amountPrecisionString = cells[2].replace ('<td>', '');
+            const amountPrecisionParts = amountPrecisionString.split (' ');
+            const amountPrecision = this.precisionFromString (amountPrecisionParts[0]);
+            for (let j = 0; j < quoteIds.length; j++) {
+                const quoteId = quoteIds[j];
+                const quote = this.safeCurrencyCode (quoteId);
+                const pricePrecisionIndex = this.sum (3, j);
+                const pricePrecisionString = cells[pricePrecisionIndex].replace ('<td>', '');
+                if (pricePrecisionString === 'N/A') {
+                    continue;
+                }
+                const pricePrecisionParts = pricePrecisionString.split (' ');
+                const pricePrecision = this.precisionFromString (pricePrecisionParts[0]);
+                const symbol = base + '/' + quote;
+                const id = baseId + quoteId;
+                const active = undefined;
+                result.push ({
+                    'id': id,
+                    'info': row,
+                    'symbol': symbol,
+                    'base': base,
+                    'quote': quote,
+                    'baseId': baseId,
+                    'quoteId': quoteId,
+                    'active': active,
+                    'precision': {
+                        'amount': amountPrecision,
+                        'price': pricePrecision,
                     },
-                    'price': {
-                        'min': undefined,
-                        'max': undefined,
+                    'limits': {
+                        'amount': {
+                            'min': minAmount,
+                            'max': undefined,
+                        },
+                        'price': {
+                            'min': undefined,
+                            'max': undefined,
+                        },
+                        'cost': {
+                            'min': undefined,
+                            'max': undefined,
+                        },
                     },
-                    'cost': {
-                        'min': undefined,
-                        'max': undefined,
-                    },
-                },
-            });
+                });
+            }
         }
         return result;
     }
@@ -294,6 +300,7 @@ module.exports = class gemini extends Exchange {
                         'max': undefined,
                     },
                 },
+                'active': undefined,
             });
         }
         return result;
@@ -455,8 +462,10 @@ module.exports = class gemini extends Exchange {
         }
         const id = this.safeString (order, 'order_id');
         const side = this.safeStringLower (order, 'side');
+        const clientOrderId = this.safeString (order, 'client_order_id');
         return {
             'id': id,
+            'clientOrderId': clientOrderId,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -472,6 +481,7 @@ module.exports = class gemini extends Exchange {
             'filled': filled,
             'remaining': remaining,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/hitbtc2.js b/BackendServers/node_modules/ccxt/js/hitbtc.js
similarity index 97%
rename from WebServer/node_modules/ccxt/js/hitbtc2.js
rename to BackendServers/node_modules/ccxt/js/hitbtc.js
index 64d86ffa8..14b6e46a0 100644
--- a/WebServer/node_modules/ccxt/js/hitbtc2.js
+++ b/BackendServers/node_modules/ccxt/js/hitbtc.js
@@ -2,19 +2,20 @@
 
 // ---------------------------------------------------------------------------
 
-const hitbtc = require ('./hitbtc');
+const Exchange = require ('./base/Exchange');
 const { BadSymbol, PermissionDenied, ExchangeError, ExchangeNotAvailable, OrderNotFound, InsufficientFunds, InvalidOrder, RequestTimeout, AuthenticationError } = require ('./base/errors');
 const { TRUNCATE, DECIMAL_PLACES } = require ('./base/functions/number');
 // ---------------------------------------------------------------------------
 
-module.exports = class hitbtc2 extends hitbtc {
+module.exports = class hitbtc extends Exchange {
     describe () {
         return this.deepExtend (super.describe (), {
-            'id': 'hitbtc2',
+            'id': 'hitbtc',
             'name': 'HitBTC',
             'countries': [ 'HK' ],
             'rateLimit': 1500,
             'version': '2',
+            'pro': true,
             'has': {
                 'createDepositAddress': true,
                 'fetchDepositAddress': true,
@@ -49,7 +50,10 @@ module.exports = class hitbtc2 extends hitbtc {
             },
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/27766555-8eaec20e-5edc-11e7-9c5b-6dc69fc42f5e.jpg',
-                'api': 'https://api.hitbtc.com',
+                'api': {
+                    'public': 'https://api.hitbtc.com',
+                    'private': 'https://api.hitbtc.com',
+                },
                 'www': 'https://hitbtc.com',
                 'referral': 'https://hitbtc.com/?ref_id=5a5d39a65d466',
                 'doc': [
@@ -542,6 +546,20 @@ module.exports = class hitbtc2 extends hitbtc {
             'options': {
                 'defaultTimeInForce': 'FOK',
             },
+            'commonCurrencies': {
+                'BET': 'DAO.Casino',
+                'CAT': 'BitClave',
+                'CPT': 'Cryptaur', // conflict with CPT = Contents Protocol https://github.com/ccxt/ccxt/issues/4920 and https://github.com/ccxt/ccxt/issues/6081
+                'DRK': 'DASH',
+                'EMGO': 'MGO',
+                'GET': 'Themis',
+                'HSR': 'HC',
+                'LNC': 'LinkerCoin',
+                'PLA': 'PlayChip',
+                'UNC': 'Unigame',
+                'USD': 'USDT',
+                'XBT': 'BTC',
+            },
             'exceptions': {
                 '504': RequestTimeout, // {"error":{"code":504,"message":"Gateway Timeout"}}
                 '1002': AuthenticationError, // {"error":{"code":1002,"message":"Authorization failed","description":""}}
@@ -712,14 +730,13 @@ module.exports = class hitbtc2 extends hitbtc {
     }
 
     parseOHLCV (ohlcv, market = undefined, timeframe = '1d', since = undefined, limit = undefined) {
-        const timestamp = this.parse8601 (ohlcv['timestamp']);
         return [
-            timestamp,
-            parseFloat (ohlcv['open']),
-            parseFloat (ohlcv['max']),
-            parseFloat (ohlcv['min']),
-            parseFloat (ohlcv['close']),
-            parseFloat (ohlcv['volume']),
+            this.parse8601 (this.safeString (ohlcv, 'timestamp')),
+            this.safeFloat (ohlcv, 'open'),
+            this.safeFloat (ohlcv, 'max'),
+            this.safeFloat (ohlcv, 'min'),
+            this.safeFloat (ohlcv, 'close'),
+            this.safeFloat (ohlcv, 'volume'),
         ];
     }
 
@@ -1174,6 +1191,7 @@ module.exports = class hitbtc2 extends hitbtc {
         // because most of their endpoints will require clientOrderId
         // explained here: https://github.com/ccxt/ccxt/issues/5674
         const id = this.safeString (order, 'clientOrderId');
+        const clientOrderId = id;
         let price = this.safeFloat (order, 'price');
         if (price === undefined) {
             if (id in this.orders) {
@@ -1229,6 +1247,7 @@ module.exports = class hitbtc2 extends hitbtc {
         }
         return {
             'id': id,
+            'clientOrderId': clientOrderId, // https://github.com/ccxt/ccxt/issues/5674
             'timestamp': created,
             'datetime': this.iso8601 (created),
             'lastTradeTimestamp': updated,
@@ -1442,6 +1461,10 @@ module.exports = class hitbtc2 extends hitbtc {
         };
     }
 
+    nonce () {
+        return this.milliseconds ();
+    }
+
     sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
         let url = '/api/' + this.version + '/';
         const query = this.omit (params, this.extractParams (path));
@@ -1467,7 +1490,7 @@ module.exports = class hitbtc2 extends hitbtc {
                 'Content-Type': 'application/json',
             };
         }
-        url = this.urls['api'] + url;
+        url = this.urls['api'][api] + url;
         return { 'url': url, 'method': method, 'body': body, 'headers': headers };
     }
 
diff --git a/BackendServers/node_modules/ccxt/js/hitbtc2.js b/BackendServers/node_modules/ccxt/js/hitbtc2.js
new file mode 100644
index 000000000..145d70a92
--- /dev/null
+++ b/BackendServers/node_modules/ccxt/js/hitbtc2.js
@@ -0,0 +1,17 @@
+'use strict';
+
+// ---------------------------------------------------------------------------
+
+const hitbtc = require ('./hitbtc');
+
+// ---------------------------------------------------------------------------
+
+module.exports = class hitbtc2 extends hitbtc {
+    describe () {
+        // this is a temporary stub for backward compatibility
+        // https://github.com/ccxt/ccxt/issues/6678
+        return this.deepExtend (super.describe (), {
+            'id': 'hitbtc2',
+        });
+    }
+};
diff --git a/WebServer/node_modules/ccxt/js/hollaex.js b/BackendServers/node_modules/ccxt/js/hollaex.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/hollaex.js
rename to BackendServers/node_modules/ccxt/js/hollaex.js
index 3ea886087..a4d080c94 100644
--- a/WebServer/node_modules/ccxt/js/hollaex.js
+++ b/BackendServers/node_modules/ccxt/js/hollaex.js
@@ -754,6 +754,7 @@ module.exports = class hollaex extends Exchange {
         const status = (type === 'market') ? 'closed' : 'open';
         const result = {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -769,6 +770,7 @@ module.exports = class hollaex extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': order,
+            'average': undefined,
         };
         return result;
     }
@@ -805,7 +807,7 @@ module.exports = class hollaex extends Exchange {
     async cancelOrder (id, symbol = undefined, params = {}) {
         await this.loadMarkets ();
         const request = {
-            'orderId': id,
+            'order_id': id,
         };
         const response = await this.privateDeleteUserOrdersOrderId (this.extend (request, params));
         //
diff --git a/WebServer/node_modules/ccxt/js/huobipro.js b/BackendServers/node_modules/ccxt/js/huobipro.js
similarity index 88%
rename from WebServer/node_modules/ccxt/js/huobipro.js
rename to BackendServers/node_modules/ccxt/js/huobipro.js
index a7060c652..207356141 100644
--- a/WebServer/node_modules/ccxt/js/huobipro.js
+++ b/BackendServers/node_modules/ccxt/js/huobipro.js
@@ -18,11 +18,12 @@ module.exports = class huobipro extends Exchange {
             'version': 'v1',
             'accounts': undefined,
             'accountsById': undefined,
-            'hostname': 'api.huobi.pro',
+            'hostname': 'api.huobi.pro', // api.testnet.huobi.pro
+            'pro': true,
             'has': {
                 'CORS': false,
                 'fetchTickers': true,
-                'fetchDepositAddress': false,
+                'fetchDepositAddress': true,
                 'fetchOHLCV': true,
                 'fetchOrder': true,
                 'fetchOrders': true,
@@ -48,12 +49,18 @@ module.exports = class huobipro extends Exchange {
                 '1y': '1year',
             },
             'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766569-15aa7b9a-5edd-11e7-9e7f-44791f4ee49c.jpg',
+                'test': {
+                    'market': 'https://api.testnet.huobi.pro',
+                    'public': 'https://api.testnet.huobi.pro',
+                    'private': 'https://api.testnet.huobi.pro',
+                },
+                'logo': 'https://user-images.githubusercontent.com/1294454/76137448-22748a80-604e-11ea-8069-6e389271911d.jpg',
                 'api': {
                     'market': 'https://{hostname}',
                     'public': 'https://{hostname}',
                     'private': 'https://{hostname}',
-                    'zendesk': 'https://huobiglobal.zendesk.com/hc/en-us/articles',
+                    'v2Public': 'https://{hostname}',
+                    'v2Private': 'https://{hostname}',
                 },
                 'www': 'https://www.huobi.pro',
                 'referral': 'https://www.huobi.co/en-us/topic/invited/?invite_code=rwrd3',
@@ -61,9 +68,19 @@ module.exports = class huobipro extends Exchange {
                 'fees': 'https://www.huobi.pro/about/fee/',
             },
             'api': {
-                'zendesk': {
+                'v2Public': {
                     'get': [
-                        '360000400491-Trade-Limits',
+                        'reference/currencies',
+                    ],
+                },
+                'v2Private': {
+                    'get': [
+                        'account/withdraw/quota',
+                        'account/deposit/address',
+                        'reference/transact-fee-rate',
+                    ],
+                    'post': [
+                        'sub-user/management',
                     ],
                 },
                 'market': {
@@ -87,10 +104,6 @@ module.exports = class huobipro extends Exchange {
                     ],
                 },
                 'private': {
-                    // todo add v2 endpoints
-                    // 'GET /v2/account/withdraw/quota
-                    // 'GET /v2/reference/currencies
-                    // 'GET /v2/account/deposit/address
                     'get': [
                         'account/accounts', // 查询当前用户的所有账户(即account-id)
                         'account/accounts/{id}/balance', // 查询指定账户的余额
@@ -115,8 +128,6 @@ module.exports = class huobipro extends Exchange {
                         'stable-coin/exchange_rate',
                         'stable-coin/quote',
                     ],
-                    // todo add v2 endpoints
-                    // POST /v2/sub-user/management
                     'post': [
                         'futures/transfer',
                         'order/batch-orders',
@@ -152,12 +163,14 @@ module.exports = class huobipro extends Exchange {
             'exceptions': {
                 'exact': {
                     // err-code
+                    'bad-request': BadRequest,
                     'api-not-support-temp-addr': PermissionDenied, // {"status":"error","err-code":"api-not-support-temp-addr","err-msg":"API withdrawal does not support temporary addresses","data":null}
                     'timeout': RequestTimeout, // {"ts":1571653730865,"status":"error","err-code":"timeout","err-msg":"Request Timeout"}
                     'gateway-internal-error': ExchangeNotAvailable, // {"status":"error","err-code":"gateway-internal-error","err-msg":"Failed to load data. Try again later.","data":null}
                     'account-frozen-balance-insufficient-error': InsufficientFunds, // {"status":"error","err-code":"account-frozen-balance-insufficient-error","err-msg":"trade account balance is not enough, left: `0.0027`","data":null}
                     'invalid-amount': InvalidOrder, // eg "Paramemter `amount` is invalid."
                     'order-limitorder-amount-min-error': InvalidOrder, // limit order amount error, min: `0.001`
+                    'order-limitorder-amount-max-error': InvalidOrder, // market order amount error, max: `1000000`
                     'order-marketorder-amount-min-error': InvalidOrder, // market order amount error, min: `0.01`
                     'order-limitorder-price-min-error': InvalidOrder, // limit order price error
                     'order-limitorder-price-max-error': InvalidOrder, // limit order price error
@@ -320,6 +333,21 @@ module.exports = class huobipro extends Exchange {
     }
 
     parseTicker (ticker, market = undefined) {
+        //
+        //     {
+        //         "amount": 26228.672978342216,
+        //         "open": 9078.95,
+        //         "close": 9146.86,
+        //         "high": 9155.41,
+        //         "id": 209988544334,
+        //         "count": 265846,
+        //         "low": 8988.0,
+        //         "version": 209988544334,
+        //         "ask": [ 9146.87, 0.156134 ],
+        //         "vol": 2.3822168242201668E8,
+        //         "bid": [ 9146.86, 0.080758 ],
+        //     }
+        //
         let symbol = undefined;
         if (market !== undefined) {
             symbol = market['symbol'];
@@ -391,13 +419,35 @@ module.exports = class huobipro extends Exchange {
             'type': 'step0',
         };
         const response = await this.marketGetDepth (this.extend (request, params));
+        //
+        //     {
+        //         "status": "ok",
+        //         "ch": "market.btcusdt.depth.step0",
+        //         "ts": 1583474832790,
+        //         "tick": {
+        //             "bids": [
+        //                 [ 9100.290000000000000000, 0.200000000000000000 ],
+        //                 [ 9099.820000000000000000, 0.200000000000000000 ],
+        //                 [ 9099.610000000000000000, 0.205000000000000000 ],
+        //             ],
+        //             "asks": [
+        //                 [ 9100.640000000000000000, 0.005904000000000000 ],
+        //                 [ 9101.010000000000000000, 0.287311000000000000 ],
+        //                 [ 9101.030000000000000000, 0.012121000000000000 ],
+        //             ],
+        //             "ts":1583474832008,
+        //             "version":104999698780
+        //         }
+        //     }
+        //
         if ('tick' in response) {
             if (!response['tick']) {
                 throw new ExchangeError (this.id + ' fetchOrderBook() returned empty response: ' + this.json (response));
             }
-            const orderbook = this.safeValue (response, 'tick');
-            const result = this.parseOrderBook (orderbook, orderbook['ts']);
-            result['nonce'] = orderbook['version'];
+            const tick = this.safeValue (response, 'tick');
+            const timestamp = this.safeInteger (tick, 'ts', this.safeInteger (response, 'ts'));
+            const result = this.parseOrderBook (tick, timestamp);
+            result['nonce'] = this.safeInteger (tick, 'version');
             return result;
         }
         throw new ExchangeError (this.id + ' fetchOrderBook() returned unrecognized response: ' + this.json (response));
@@ -410,6 +460,26 @@ module.exports = class huobipro extends Exchange {
             'symbol': market['id'],
         };
         const response = await this.marketGetDetailMerged (this.extend (request, params));
+        //
+        //     {
+        //         "status": "ok",
+        //         "ch": "market.btcusdt.detail.merged",
+        //         "ts": 1583494336669,
+        //         "tick": {
+        //             "amount": 26228.672978342216,
+        //             "open": 9078.95,
+        //             "close": 9146.86,
+        //             "high": 9155.41,
+        //             "id": 209988544334,
+        //             "count": 265846,
+        //             "low": 8988.0,
+        //             "version": 209988544334,
+        //             "ask": [ 9146.87, 0.156134 ],
+        //             "vol": 2.3822168242201668E8,
+        //             "bid": [ 9146.86, 0.080758 ],
+        //         }
+        //     }
+        //
         const ticker = this.parseTicker (response['tick'], market);
         const timestamp = this.safeValue (response, 'ts');
         ticker['timestamp'] = timestamp;
@@ -435,10 +505,24 @@ module.exports = class huobipro extends Exchange {
                 result[symbol] = ticker;
             }
         }
-        return result;
+        return this.filterByArray (result, 'symbol', symbols);
     }
 
     parseTrade (trade, market = undefined) {
+        //
+        // fetchTrades (public)
+        //
+        //     {
+        //         "amount": 0.010411000000000000,
+        //         "trade-id": 102090736910,
+        //         "ts": 1583497692182,
+        //         "id": 10500517034273194594947,
+        //         "price": 9096.050000000000000000,
+        //         "direction": "sell"
+        //     }
+        //
+        // fetchMyTrades (private)
+        //
         let symbol = undefined;
         if (market === undefined) {
             const marketId = this.safeString (trade, 'symbol');
@@ -486,7 +570,8 @@ module.exports = class huobipro extends Exchange {
                 'currency': feeCurrency,
             };
         }
-        const id = this.safeString (trade, 'id');
+        const tradeId = this.safeString2 (trade, 'trade-id', 'tradeId');
+        const id = this.safeString (trade, 'id', tradeId);
         return {
             'id': id,
             'info': trade,
@@ -533,6 +618,30 @@ module.exports = class huobipro extends Exchange {
             request['size'] = limit;
         }
         const response = await this.marketGetHistoryTrade (this.extend (request, params));
+        //
+        //     {
+        //         "status": "ok",
+        //         "ch": "market.btcusdt.trade.detail",
+        //         "ts": 1583497692365,
+        //         "data": [
+        //             {
+        //                 "id": 105005170342,
+        //                 "ts": 1583497692182,
+        //                 "data": [
+        //                     {
+        //                         "amount": 0.010411000000000000,
+        //                         "trade-id": 102090736910,
+        //                         "ts": 1583497692182,
+        //                         "id": 10500517034273194594947,
+        //                         "price": 9096.050000000000000000,
+        //                         "direction": "sell"
+        //                     }
+        //                 ]
+        //             },
+        //             // ...
+        //         ]
+        //     }
+        //
         const data = this.safeValue (response, 'data');
         let result = [];
         for (let i = 0; i < data.length; i++) {
@@ -900,6 +1009,7 @@ module.exports = class huobipro extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -914,6 +1024,7 @@ module.exports = class huobipro extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
@@ -968,6 +1079,8 @@ module.exports = class huobipro extends Exchange {
             'cost': undefined,
             'trades': undefined,
             'fee': undefined,
+            'clientOrderId': undefined,
+            'average': undefined,
         };
     }
 
@@ -1007,94 +1120,50 @@ module.exports = class huobipro extends Exchange {
         };
     }
 
-    async withdraw (code, amount, address, tag = undefined, params = {}) {
-        await this.loadMarkets ();
+    parseDepositAddress (depositAddress, currency = undefined) {
+        //
+        //     {
+        //         currency: "eth",
+        //         address: "0xf7292eb9ba7bc50358e27f0e025a4d225a64127b",
+        //         addressTag: "",
+        //         chain: "eth"
+        //     }
+        //
+        const address = this.safeString (depositAddress, 'address');
+        const tag = this.safeString (depositAddress, 'addressTag');
+        const currencyId = this.safeString (depositAddress, 'currency');
+        const code = this.safeCurrencyCode (currencyId);
         this.checkAddress (address);
+        return {
+            'currency': code,
+            'address': address,
+            'tag': tag,
+            'info': depositAddress,
+        };
+    }
+
+    async fetchDepositAddress (code, params = {}) {
+        await this.loadMarkets ();
         const currency = this.currency (code);
         const request = {
-            'address': address, // only supports existing addresses in your withdraw address list
-            'amount': amount,
-            'currency': currency['id'].toLowerCase (),
+            'currency': currency['id'],
         };
-        if (tag !== undefined) {
-            request['addr-tag'] = tag; // only for XRP?
-        }
-        const response = await this.privatePostDwWithdrawApiCreate (this.extend (request, params));
-        const id = this.safeString (response, 'data');
-        return {
-            'info': response,
-            'id': id,
-        };
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = '/';
-        if (api === 'market') {
-            url += api;
-        } else if ((api === 'public') || (api === 'private')) {
-            url += this.version;
-        }
-        url += '/' + this.implodeParams (path, params);
-        const query = this.omit (params, this.extractParams (path));
-        if (api === 'private') {
-            this.checkRequiredCredentials ();
-            const timestamp = this.ymdhms (this.milliseconds (), 'T');
-            let request = {
-                'SignatureMethod': 'HmacSHA256',
-                'SignatureVersion': '2',
-                'AccessKeyId': this.apiKey,
-                'Timestamp': timestamp,
-            };
-            if (method !== 'POST') {
-                request = this.extend (request, query);
-            }
-            request = this.keysort (request);
-            let auth = this.urlencode (request);
-            // unfortunately, PHP demands double quotes for the escaped newline symbol
-            // eslint-disable-next-line quotes
-            const payload = [ method, this.hostname, url, auth ].join ("\n");
-            const signature = this.hmac (this.encode (payload), this.encode (this.secret), 'sha256', 'base64');
-            auth += '&' + this.urlencode ({ 'Signature': signature });
-            url += '?' + auth;
-            if (method === 'POST') {
-                body = this.json (query);
-                headers = {
-                    'Content-Type': 'application/json',
-                };
-            } else {
-                headers = {
-                    'Content-Type': 'application/x-www-form-urlencoded',
-                };
-            }
-        } else {
-            if (Object.keys (params).length) {
-                url += '?' + this.urlencode (params);
-            }
-        }
-        url = this.implodeParams (this.urls['api'][api], {
-            'hostname': this.hostname,
-        }) + url;
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-
-    handleErrors (httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody) {
-        if (response === undefined) {
-            return; // fallback to default error handler
-        }
-        if ('status' in response) {
-            //
-            //     {"status":"error","err-code":"order-limitorder-amount-min-error","err-msg":"limit order amount error, min: `0.001`","data":null}
-            //
-            const status = this.safeString (response, 'status');
-            if (status === 'error') {
-                const code = this.safeString (response, 'err-code');
-                const feedback = this.id + ' ' + body;
-                this.throwExactlyMatchedException (this.exceptions['exact'], code, feedback);
-                const message = this.safeString (response, 'err-msg');
-                this.throwExactlyMatchedException (this.exceptions['exact'], message, feedback);
-                throw new ExchangeError (feedback);
-            }
-        }
+        const response = await this.v2PrivateGetAccountDepositAddress (this.extend (request, params));
+        //
+        //     {
+        //         code: 200,
+        //         data: [
+        //             {
+        //                 currency: "eth",
+        //                 address: "0xf7292eb9ba7bc50358e27f0e025a4d225a64127b",
+        //                 addressTag: "",
+        //                 chain: "eth"
+        //             }
+        //         ]
+        //     }
+        //
+        const data = this.safeValue (response, 'data', []);
+        return this.parseDepositAddress (this.safeValue (data, 0, {}), currency);
     }
 
     async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
@@ -1238,4 +1307,96 @@ module.exports = class huobipro extends Exchange {
         };
         return this.safeString (statuses, status, status);
     }
+
+    async withdraw (code, amount, address, tag = undefined, params = {}) {
+        await this.loadMarkets ();
+        this.checkAddress (address);
+        const currency = this.currency (code);
+        const request = {
+            'address': address, // only supports existing addresses in your withdraw address list
+            'amount': amount,
+            'currency': currency['id'].toLowerCase (),
+        };
+        if (tag !== undefined) {
+            request['addr-tag'] = tag; // only for XRP?
+        }
+        const response = await this.privatePostDwWithdrawApiCreate (this.extend (request, params));
+        const id = this.safeString (response, 'data');
+        return {
+            'info': response,
+            'id': id,
+        };
+    }
+
+    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
+        let url = '/';
+        if (api === 'market') {
+            url += api;
+        } else if ((api === 'public') || (api === 'private')) {
+            url += this.version;
+        } else if ((api === 'v2Public') || (api === 'v2Private')) {
+            url += 'v2';
+        }
+        url += '/' + this.implodeParams (path, params);
+        const query = this.omit (params, this.extractParams (path));
+        if (api === 'private' || api === 'v2Private') {
+            this.checkRequiredCredentials ();
+            const timestamp = this.ymdhms (this.milliseconds (), 'T');
+            let request = {
+                'SignatureMethod': 'HmacSHA256',
+                'SignatureVersion': '2',
+                'AccessKeyId': this.apiKey,
+                'Timestamp': timestamp,
+            };
+            if (method !== 'POST') {
+                request = this.extend (request, query);
+            }
+            request = this.keysort (request);
+            let auth = this.urlencode (request);
+            // unfortunately, PHP demands double quotes for the escaped newline symbol
+            // eslint-disable-next-line quotes
+            const payload = [ method, this.hostname, url, auth ].join ("\n");
+            const signature = this.hmac (this.encode (payload), this.encode (this.secret), 'sha256', 'base64');
+            auth += '&' + this.urlencode ({ 'Signature': signature });
+            url += '?' + auth;
+            if (method === 'POST') {
+                body = this.json (query);
+                headers = {
+                    'Content-Type': 'application/json',
+                };
+            } else {
+                headers = {
+                    'Content-Type': 'application/x-www-form-urlencoded',
+                };
+            }
+        } else {
+            if (Object.keys (params).length) {
+                url += '?' + this.urlencode (params);
+            }
+        }
+        url = this.implodeParams (this.urls['api'][api], {
+            'hostname': this.hostname,
+        }) + url;
+        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
+    }
+
+    handleErrors (httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody) {
+        if (response === undefined) {
+            return; // fallback to default error handler
+        }
+        if ('status' in response) {
+            //
+            //     {"status":"error","err-code":"order-limitorder-amount-min-error","err-msg":"limit order amount error, min: `0.001`","data":null}
+            //
+            const status = this.safeString (response, 'status');
+            if (status === 'error') {
+                const code = this.safeString (response, 'err-code');
+                const feedback = this.id + ' ' + body;
+                this.throwExactlyMatchedException (this.exceptions['exact'], code, feedback);
+                const message = this.safeString (response, 'err-msg');
+                this.throwExactlyMatchedException (this.exceptions['exact'], message, feedback);
+                throw new ExchangeError (feedback);
+            }
+        }
+    }
 };
diff --git a/WebServer/node_modules/ccxt/js/huobiru.js b/BackendServers/node_modules/ccxt/js/huobiru.js
similarity index 84%
rename from WebServer/node_modules/ccxt/js/huobiru.js
rename to BackendServers/node_modules/ccxt/js/huobiru.js
index 039a8ce78..b628d3dc4 100644
--- a/WebServer/node_modules/ccxt/js/huobiru.js
+++ b/BackendServers/node_modules/ccxt/js/huobiru.js
@@ -13,12 +13,13 @@ module.exports = class huobiru extends huobipro {
             'name': 'Huobi Russia',
             'countries': [ 'RU' ],
             'hostname': 'www.huobi.com.ru',
+            'pro': true,
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/52978816-e8552e00-33e3-11e9-98ed-845acfece834.jpg',
                 'api': {
-                    'market': 'https://www.huobi.com.ru/api',
-                    'public': 'https://www.huobi.com.ru/api',
-                    'private': 'https://www.huobi.com.ru/api',
+                    'market': 'https://{hostname}/api',
+                    'public': 'https://{hostname}/api',
+                    'private': 'https://{hostname}/api',
                     'zendesk': 'https://huobiglobal.zendesk.com/hc/en-us/articles',
                 },
                 'www': 'https://www.huobi.com.ru/ru-ru',
diff --git a/WebServer/node_modules/ccxt/js/ice3x.js b/BackendServers/node_modules/ccxt/js/ice3x.js
similarity index 97%
rename from WebServer/node_modules/ccxt/js/ice3x.js
rename to BackendServers/node_modules/ccxt/js/ice3x.js
index 6405d358b..73230a5b1 100644
--- a/WebServer/node_modules/ccxt/js/ice3x.js
+++ b/BackendServers/node_modules/ccxt/js/ice3x.js
@@ -3,7 +3,7 @@
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError, AuthenticationError } = require ('./base/errors');
+const { ExchangeError, AuthenticationError, ArgumentsRequired } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -116,6 +116,7 @@ module.exports = class ice3x extends Exchange {
                     },
                 },
                 'info': currency,
+                'fee': undefined,
             };
         }
         return result;
@@ -148,6 +149,8 @@ module.exports = class ice3x extends Exchange {
                 'quoteId': quoteId,
                 'active': undefined,
                 'info': market,
+                'precision': this.precision,
+                'limits': this.limits,
             });
         }
         return result;
@@ -218,7 +221,7 @@ module.exports = class ice3x extends Exchange {
             const type = this.safeString (params, 'type');
             if ((type !== 'ask') && (type !== 'bid')) {
                 // eslint-disable-next-line quotes
-                throw new ExchangeError (this.id + " fetchOrderBook requires an exchange-specific extra 'type' param ('bid' or 'ask') when used with a limit");
+                throw new ArgumentsRequired (this.id + " fetchOrderBook requires an exchange-specific extra 'type' param ('bid' or 'ask') when used with a limit");
             } else {
                 request['items_per_page'] = limit;
             }
@@ -330,6 +333,7 @@ module.exports = class ice3x extends Exchange {
         }
         return {
             'id': this.safeString (order, 'order_id'),
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -345,6 +349,7 @@ module.exports = class ice3x extends Exchange {
             'trades': undefined,
             'fee': fee,
             'info': order,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/idex.js b/BackendServers/node_modules/ccxt/js/idex.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/idex.js
rename to BackendServers/node_modules/ccxt/js/idex.js
index 70bfd9348..e57a4ff06 100644
--- a/WebServer/node_modules/ccxt/js/idex.js
+++ b/BackendServers/node_modules/ccxt/js/idex.js
@@ -760,6 +760,7 @@ module.exports = class idex extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -771,6 +772,10 @@ module.exports = class idex extends Exchange {
             'remaining': remaining,
             'cost': cost,
             'status': status,
+            'lastTradeTimestamp': undefined,
+            'average': undefined,
+            'trades': undefined,
+            'fee': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/independentreserve.js b/BackendServers/node_modules/ccxt/js/independentreserve.js
similarity index 95%
rename from WebServer/node_modules/ccxt/js/independentreserve.js
rename to BackendServers/node_modules/ccxt/js/independentreserve.js
index 31b3cf056..872ce0b05 100644
--- a/WebServer/node_modules/ccxt/js/independentreserve.js
+++ b/BackendServers/node_modules/ccxt/js/independentreserve.js
@@ -97,6 +97,9 @@ module.exports = class independentreserve extends Exchange {
                     'baseId': baseId,
                     'quoteId': quoteId,
                     'info': id,
+                    'active': undefined,
+                    'precision': this.precision,
+                    'limits': this.limits,
                 });
             }
         }
@@ -174,6 +177,21 @@ module.exports = class independentreserve extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "OrderGuid": "c7347e4c-b865-4c94-8f74-d934d4b0b177",
+        //         "CreatedTimestampUtc": "2014-09-23T12:39:34.3817763Z",
+        //         "Type": "MarketBid",
+        //         "VolumeOrdered": 5.0,
+        //         "VolumeFilled": 5.0,
+        //         "Price": null,
+        //         "AvgPrice": 100.0,
+        //         "ReservedAmount": 0.0,
+        //         "Status": "Filled",
+        //         "PrimaryCurrencyCode": "Xbt",
+        //         "SecondaryCurrencyCode": "Usd"
+        //     }
+        //
         let symbol = undefined;
         const baseId = this.safeString (order, 'PrimaryCurrencyCode');
         const quoteId = this.safeString (order, 'PrimaryCurrencyCode');
@@ -230,6 +248,7 @@ module.exports = class independentreserve extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -244,6 +263,7 @@ module.exports = class independentreserve extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/indodax.js b/BackendServers/node_modules/ccxt/js/indodax.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/indodax.js
rename to BackendServers/node_modules/ccxt/js/indodax.js
index 6d54ec676..42ee4051e 100644
--- a/WebServer/node_modules/ccxt/js/indodax.js
+++ b/BackendServers/node_modules/ccxt/js/indodax.js
@@ -280,6 +280,16 @@ module.exports = class indodax extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "order_id": "12345",
+        //         "submit_time": "1392228122",
+        //         "price": "8000000",
+        //         "type": "sell",
+        //         "order_ltc": "100000000",
+        //         "remain_ltc": "100000000"
+        //     }
+        //
         let side = undefined;
         if ('type' in order) {
             side = order['type'];
@@ -331,6 +341,7 @@ module.exports = class indodax extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -345,12 +356,13 @@ module.exports = class indodax extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
     async fetchOrder (id, symbol = undefined, params = {}) {
         if (symbol === undefined) {
-            throw new ExchangeError (this.id + ' fetchOrder requires a symbol');
+            throw new ArgumentsRequired (this.id + ' fetchOrder requires a symbol');
         }
         await this.loadMarkets ();
         const market = this.market (symbol);
@@ -397,7 +409,7 @@ module.exports = class indodax extends Exchange {
 
     async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
         if (symbol === undefined) {
-            throw new ExchangeError (this.id + ' fetchOrders requires a symbol');
+            throw new ArgumentsRequired (this.id + ' fetchOrders requires a symbol argument');
         }
         await this.loadMarkets ();
         const request = {};
@@ -446,7 +458,7 @@ module.exports = class indodax extends Exchange {
         }
         const side = this.safeValue (params, 'side');
         if (side === undefined) {
-            throw new ExchangeError (this.id + ' cancelOrder requires an extra "side" param');
+            throw new ArgumentsRequired (this.id + ' cancelOrder requires an extra "side" param');
         }
         await this.loadMarkets ();
         const market = this.market (symbol);
diff --git a/WebServer/node_modules/ccxt/js/itbit.js b/BackendServers/node_modules/ccxt/js/itbit.js
similarity index 93%
rename from WebServer/node_modules/ccxt/js/itbit.js
rename to BackendServers/node_modules/ccxt/js/itbit.js
index 8955c366c..dacb3199f 100644
--- a/WebServer/node_modules/ccxt/js/itbit.js
+++ b/BackendServers/node_modules/ccxt/js/itbit.js
@@ -3,7 +3,7 @@
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError, AuthenticationError } = require ('./base/errors');
+const { ExchangeError, AuthenticationError, ArgumentsRequired } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -213,6 +213,7 @@ module.exports = class itbit extends Exchange {
             'price': price,
             'amount': amount,
             'cost': cost,
+            'fee': undefined,
         };
         if (feeCost !== undefined) {
             if (rebatesApplied !== undefined) {
@@ -253,7 +254,7 @@ module.exports = class itbit extends Exchange {
         await this.loadMarkets ();
         const walletId = this.safeString (params, 'walletId');
         if (walletId === undefined) {
-            throw new ExchangeError (this.id + ' fetchMyTrades requires a walletId parameter');
+            throw new ArgumentsRequired (this.id + ' fetchMyTrades requires a walletId parameter');
         }
         const request = {
             'walletId': walletId,
@@ -472,19 +473,51 @@ module.exports = class itbit extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
-        const side = order['side'];
-        const type = order['type'];
+        //
+        //     {
+        //         "id": "13d6af57-8b0b-41e5-af30-becf0bcc574d",
+        //         "walletId": "7e037345-1288-4c39-12fe-d0f99a475a98",
+        //         "side": "buy",
+        //         "instrument": "XBTUSD",
+        //         "type": "limit",
+        //         "currency": "XBT",
+        //         "amount": "2.50000000",
+        //         "displayAmount": "2.50000000",
+        //         "price": "650.00000000",
+        //         "volumeWeightedAveragePrice": "0.00000000",
+        //         "amountFilled": "0.00000000",
+        //         "createdTime": "2014-02-11T17:05:15Z",
+        //         "status": "submitted",
+        //         "funds": null,
+        //         "metadata": {},
+        //         "clientOrderIdentifier": null,
+        //         "postOnly": "False"
+        //     }
+        //
+        const side = this.safeString (order, 'side');
+        const type = this.safeString (order, 'type');
         const symbol = this.markets_by_id[order['instrument']]['symbol'];
         const timestamp = this.parse8601 (order['createdTime']);
         const amount = this.safeFloat (order, 'amount');
         const filled = this.safeFloat (order, 'amountFilled');
-        const remaining = amount - filled;
+        let remaining = undefined;
+        let cost = undefined;
         const fee = undefined;
         const price = this.safeFloat (order, 'price');
         const average = this.safeFloat (order, 'volumeWeightedAveragePrice');
-        const cost = filled * average;
+        if (filled !== undefined) {
+            if (amount !== undefined) {
+                remaining = amount - filled;
+            }
+            if (average !== undefined) {
+                cost = filled * average;
+            }
+        }
+        const clientOrderId = this.safeString (order, 'clientOrderIdentifier');
+        const id = this.safeString (order, 'id');
         return {
-            'id': order['id'],
+            'id': id,
+            'clientOrderId': clientOrderId,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -501,6 +534,7 @@ module.exports = class itbit extends Exchange {
             'remaining': remaining,
             'fee': fee,
             // 'trades': this.parseTrades (order['trades'], market),
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/kkex.js b/BackendServers/node_modules/ccxt/js/kkex.js
similarity index 97%
rename from WebServer/node_modules/ccxt/js/kkex.js
rename to BackendServers/node_modules/ccxt/js/kkex.js
index 58b799e95..cd0457f21 100644
--- a/WebServer/node_modules/ccxt/js/kkex.js
+++ b/BackendServers/node_modules/ccxt/js/kkex.js
@@ -399,6 +399,20 @@ module.exports = class kkex extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "status": 2,
+        //         "source": "NORMAL",
+        //         "amount": "10.852019",
+        //         "create_date": 1523938461036,
+        //         "avg_price": "0.00096104",
+        //         "order_id": "100",
+        //         "price": "0.00096105",
+        //         "type": "buy",
+        //         "symbol": "READBTC",
+        //         "deal_amount": "10.852019"
+        //     }
+        //
         let symbol = undefined;
         if (market !== undefined) {
             symbol = market['symbol'];
@@ -427,6 +441,7 @@ module.exports = class kkex extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -442,6 +457,7 @@ module.exports = class kkex extends Exchange {
             'remaining': remaining,
             'fee': undefined,
             'info': order,
+            'trades': undefined,
         };
     }
 
@@ -490,6 +506,8 @@ module.exports = class kkex extends Exchange {
             'remaining': undefined,
             'trades': undefined,
             'fee': undefined,
+            'clientOrderId': undefined,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/kraken.js b/BackendServers/node_modules/ccxt/js/kraken.js
similarity index 95%
rename from WebServer/node_modules/ccxt/js/kraken.js
rename to BackendServers/node_modules/ccxt/js/kraken.js
index 4fc5408c5..58e8a3e33 100644
--- a/WebServer/node_modules/ccxt/js/kraken.js
+++ b/BackendServers/node_modules/ccxt/js/kraken.js
@@ -50,11 +50,11 @@ module.exports = class kraken extends Exchange {
                 '2w': 21600,
             },
             'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766599-22709304-5ede-11e7-9de1-9f33732e1509.jpg',
+                'logo': 'https://user-images.githubusercontent.com/51840849/76173629-fc67fb00-61b1-11ea-84fe-f2de582f58a3.jpg',
                 'api': {
                     'public': 'https://api.kraken.com',
                     'private': 'https://api.kraken.com',
-                    'zendesk': 'https://support.kraken.com/hc/en-us/articles',
+                    'zendesk': 'https://kraken.zendesk.com/api/v2/help_center/en-us/articles', // use the public zendesk api to receive article bodies and bypass new anti-spam protections
                 },
                 'www': 'https://www.kraken.com',
                 'doc': 'https://www.kraken.com/features/api',
@@ -149,9 +149,9 @@ module.exports = class kraken extends Exchange {
                     'get': [
                         // we should really refrain from putting fixed fee numbers and stop hardcoding
                         // we will be using their web APIs to scrape all numbers from these articles
-                        '205893708-What-is-the-minimum-order-size-',
-                        '201396777-What-are-the-deposit-fees-',
-                        '201893608-What-are-the-withdrawal-fees-',
+                        '205893708', // -What-is-the-minimum-order-size-
+                        '360000292886', // -What-are-the-deposit-fees-
+                        '201893608', // -What-are-the-withdrawal-fees-
                     ],
                 },
                 'public': {
@@ -206,6 +206,7 @@ module.exports = class kraken extends Exchange {
                 'delistedMarketsById': {},
                 // cannot withdraw/deposit these
                 'inactiveCurrencies': [ 'CAD', 'USD', 'JPY', 'GBP' ],
+                'fetchMinOrderAmounts': true,
             },
             'exceptions': {
                 'EQuery:Invalid asset pair': BadSymbol, // {"error":["EQuery:Invalid asset pair"]}
@@ -233,8 +234,10 @@ module.exports = class kraken extends Exchange {
         return this.decimalToPrecision (fee, TRUNCATE, this.markets[symbol]['precision']['amount'], DECIMAL_PLACES);
     }
 
-    async fetchMinOrderAmounts () {
-        const html = await this.zendeskGet205893708WhatIsTheMinimumOrderSize ();
+    async fetchMinOrderAmounts (params = {}) {
+        const response = await this.zendeskGet205893708 (params);
+        const article = this.safeValue (response, 'article');
+        const html = this.safeString (article, 'body');
         const parts = html.split ('<td class="wysiwyg-text-align-right">');
         const numParts = parts.length;
         if (numParts < 3) {
@@ -261,7 +264,11 @@ module.exports = class kraken extends Exchange {
 
     async fetchMarkets (params = {}) {
         const response = await this.publicGetAssetPairs (params);
-        const limits = await this.fetchMinOrderAmounts ();
+        const fetchMinOrderAmounts = this.safeValue (this.options, 'fetchMinOrderAmounts', false);
+        let limits = {};
+        if (fetchMinOrderAmounts) {
+            limits = await this.fetchMinOrderAmounts ();
+        }
         const keys = Object.keys (response['result']);
         let result = [];
         for (let i = 0; i < keys.length; i++) {
@@ -436,6 +443,13 @@ module.exports = class kraken extends Exchange {
         };
     }
 
+    parseBidAsk (bidask, priceKey = 0, amountKey = 1) {
+        const price = this.safeFloat (bidask, priceKey);
+        const amount = this.safeFloat (bidask, amountKey);
+        const timestamp = this.safeInteger (bidask, 2);
+        return [ price, amount, timestamp ];
+    }
+
     async fetchOrderBook (symbol, limit = undefined, params = {}) {
         await this.loadMarkets ();
         const market = this.market (symbol);
@@ -449,7 +463,27 @@ module.exports = class kraken extends Exchange {
             request['count'] = limit; // 100
         }
         const response = await this.publicGetDepth (this.extend (request, params));
-        const orderbook = response['result'][market['id']];
+        //
+        //     {
+        //         "error":[],
+        //         "result":{
+        //             "XETHXXBT":{
+        //                 "asks":[
+        //                     ["0.023480","4.000",1586321307],
+        //                     ["0.023490","50.095",1586321306],
+        //                     ["0.023500","28.535",1586321302],
+        //                 ],
+        //                 "bids":[
+        //                     ["0.023470","59.580",1586321307],
+        //                     ["0.023460","20.000",1586321301],
+        //                     ["0.023440","67.832",1586321306],
+        //                 ]
+        //             }
+        //         }
+        //     }
+        //
+        const result = this.safeValue (response, 'result', {});
+        const orderbook = this.safeValue (result, market['id']);
         return this.parseOrderBook (orderbook);
     }
 
@@ -724,14 +758,14 @@ module.exports = class kraken extends Exchange {
             symbol = market['symbol'];
         }
         if (Array.isArray (trade)) {
-            timestamp = parseInt (trade[2] * 1000);
+            timestamp = this.safeTimestamp (trade, 2);
             side = (trade[3] === 's') ? 'sell' : 'buy';
             type = (trade[4] === 'l') ? 'limit' : 'market';
-            price = parseFloat (trade[0]);
-            amount = parseFloat (trade[1]);
+            price = this.safeFloat (trade, 0);
+            amount = this.safeFloat (trade, 1);
             const tradeLength = trade.length;
             if (tradeLength > 6) {
-                id = trade[6]; // artificially added as per #1794
+                id = this.safeString (trade, 6); // artificially added as per #1794
             }
         } else if ('ordertxid' in trade) {
             order = trade['ordertxid'];
@@ -855,8 +889,10 @@ module.exports = class kraken extends Exchange {
                 id = (length > 1) ? id : id[0];
             }
         }
+        const clientOrderId = this.safeString (params, 'userref');
         return {
             'id': id,
+            'clientOrderId': clientOrderId,
             'info': response,
             'timestamp': undefined,
             'datetime': undefined,
@@ -978,8 +1014,10 @@ module.exports = class kraken extends Exchange {
         }
         const status = this.parseOrderStatus (this.safeString (order, 'status'));
         const id = this.safeString (order, 'id');
+        const clientOrderId = this.safeString (order, 'userref');
         return {
             'id': id,
+            'clientOrderId': clientOrderId,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -996,6 +1034,7 @@ module.exports = class kraken extends Exchange {
             'remaining': remaining,
             'fee': fee,
             // 'trades': this.parseTrades (order['trades'], market),
+            'trades': undefined,
         };
     }
 
@@ -1238,11 +1277,11 @@ module.exports = class kraken extends Exchange {
     }
 
     async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
         // https://www.kraken.com/en-us/help/api#deposit-status
         if (code === undefined) {
             throw new ArgumentsRequired (this.id + ' fetchDeposits requires a currency code argument');
         }
+        await this.loadMarkets ();
         const currency = this.currency (code);
         const request = {
             'asset': currency['id'],
@@ -1265,11 +1304,11 @@ module.exports = class kraken extends Exchange {
     }
 
     async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
         // https://www.kraken.com/en-us/help/api#withdraw-status
         if (code === undefined) {
             throw new ArgumentsRequired (this.id + ' fetchWithdrawals requires a currency code argument');
         }
+        await this.loadMarkets ();
         const currency = this.currency (code);
         const request = {
             'asset': currency['id'],
@@ -1318,7 +1357,7 @@ module.exports = class kraken extends Exchange {
                 }
                 method = this.options['depositMethods'][code][0]['method'];
             } else {
-                throw new ExchangeError (this.id + ' fetchDepositAddress() requires an extra `method` parameter. Use fetchDepositMethods ("' + code + '") to get a list of available deposit methods or enable the exchange property .options["cacheDepositMethodsOnFetchDepositAddress"] = true');
+                throw new ArgumentsRequired (this.id + ' fetchDepositAddress() requires an extra `method` parameter. Use fetchDepositMethods ("' + code + '") to get a list of available deposit methods or enable the exchange property .options["cacheDepositMethodsOnFetchDepositAddress"] = true');
             }
         }
         const request = {
diff --git a/WebServer/node_modules/ccxt/js/kucoin.js b/BackendServers/node_modules/ccxt/js/kucoin.js
similarity index 95%
rename from WebServer/node_modules/ccxt/js/kucoin.js
rename to BackendServers/node_modules/ccxt/js/kucoin.js
index ebfc8e35d..9c659c249 100644
--- a/WebServer/node_modules/ccxt/js/kucoin.js
+++ b/BackendServers/node_modules/ccxt/js/kucoin.js
@@ -81,6 +81,7 @@ module.exports = class kucoin extends Exchange {
                         'market/stats',
                         'currencies',
                         'currencies/{currency}',
+                        'prices',
                     ],
                     'post': [
                         'bullet-public',
@@ -92,6 +93,9 @@ module.exports = class kucoin extends Exchange {
                         'accounts/{accountId}',
                         'accounts/{accountId}/ledgers',
                         'accounts/{accountId}/holds',
+                        'accounts/transferable',
+                        'sub-accounts',
+                        'sub-accounts/{subUserId}',
                         'deposit-addresses',
                         'deposits',
                         'hist-deposits',
@@ -101,6 +105,7 @@ module.exports = class kucoin extends Exchange {
                         'withdrawals/quotas',
                         'orders',
                         'orders/{orderId}',
+                        'limit/orders',
                         'fills',
                         'limit/fills',
                     ],
@@ -111,10 +116,12 @@ module.exports = class kucoin extends Exchange {
                         'deposit-addresses',
                         'withdrawals',
                         'orders',
+                        'orders/multi',
                         'bullet-private',
                     ],
                     'delete': [
                         'withdrawals/{withdrawalId}',
+                        'orders',
                         'orders/{orderId}',
                     ],
                 },
@@ -190,6 +197,7 @@ module.exports = class kucoin extends Exchange {
                 'HOT': 'HOTNOW',
                 'EDGE': 'DADI', // https://github.com/ccxt/ccxt/issues/5756
                 'WAX': 'WAXP',
+                'TRY': 'Trias',
             },
             'options': {
                 'version': 'v1',
@@ -332,6 +340,9 @@ module.exports = class kucoin extends Exchange {
                 'code': code,
                 'precision': precision,
                 'info': entry,
+                'active': undefined,
+                'fee': undefined,
+                'limits': this.limits,
             };
         }
         return result;
@@ -637,30 +648,72 @@ module.exports = class kucoin extends Exchange {
         };
     }
 
+    async fetchL3OrderBook (symbol, limit = undefined, params = {}) {
+        return await this.fetchOrderBook (symbol, limit, { 'level': 3 });
+    }
+
     async fetchOrderBook (symbol, limit = undefined, params = {}) {
-        let level = '2';
-        if (limit !== undefined) {
-            if ((limit !== 20) && (limit !== 100)) {
-                throw new ExchangeError (this.id + ' fetchOrderBook limit argument must be undefined, 20 or 100');
+        const level = this.safeInteger (params, 'level', 2);
+        let levelLimit = level.toString ();
+        if (level === '2') {
+            if (limit !== undefined) {
+                if ((limit !== 20) && (limit !== 100)) {
+                    throw new ExchangeError (this.id + ' fetchOrderBook limit argument must be undefined, 20 or 100');
+                }
+                levelLimit += '_' + limit.toString ();
             }
-            level += '_' + limit.toString ();
         }
         await this.loadMarkets ();
         const marketId = this.marketId (symbol);
-        const request = this.extend ({ 'symbol': marketId, 'level': level }, params);
-        const response = await this.publicGetMarketOrderbookLevelLevel (request);
+        const request = { 'symbol': marketId, 'level': levelLimit };
+        const response = await this.publicGetMarketOrderbookLevelLevel (this.extend (request, params));
         //
-        // { sequence: '1547731421688',
-        //   asks: [ [ '5c419328ef83c75456bd615c', '0.9', '0.09' ], ... ],
-        //   bids: [ [ '5c419328ef83c75456bd615c', '0.9', '0.09' ], ... ], }
+        // 'market/orderbook/level2'
+        // 'market/orderbook/level2_20'
+        // 'market/orderbook/level2_100'
         //
-        const data = response['data'];
+        //     {
+        //         "code":"200000",
+        //         "data":{
+        //             "sequence":"1583235112106",
+        //             "asks":[
+        //                 // ...
+        //                 ["0.023197","12.5067468"],
+        //                 ["0.023194","1.8"],
+        //                 ["0.023191","8.1069672"]
+        //             ],
+        //             "bids":[
+        //                 ["0.02319","1.6000002"],
+        //                 ["0.023189","2.2842325"],
+        //             ],
+        //             "time":1586584067274
+        //         }
+        //     }
+        //
+        // 'market/orderbook/level3'
+        //
+        //     {
+        //         "code":"200000",
+        //         "data":{
+        //             "sequence":"1583731857120",
+        //             "asks":[
+        //                 // id, price, size, timestamp in nanoseconds
+        //                 ["5e915f8acd26670009675300","6925.7","0.2","1586585482194286069"],
+        //                 ["5e915f8ace35a200090bba48","6925.7","0.001","1586585482229569826"],
+        //                 ["5e915f8a8857740009ca7d33","6926","0.00001819","1586585482149148621"],
+        //             ],
+        //             "bids":[
+        //                 ["5e915f8acca406000ac88194","6925.6","0.05","1586585482384384842"],
+        //                 ["5e915f93cd26670009676075","6925.6","0.08","1586585491334914600"],
+        //                 ["5e915f906aa6e200099b49f6","6925.4","0.2","1586585488941126340"],
+        //             ],
+        //             "time":1586585492487
+        //         }
+        //     }
+        //
+        const data = this.safeValue (response, 'data', {});
         const timestamp = this.safeInteger (data, 'time');
-        // level can be a string such as 2_20 or 2_100
-        const levelString = this.safeString (request, 'level');
-        const levelParts = levelString.split ('_');
-        const offset = parseInt (levelParts[0]);
-        const orderbook = this.parseOrderBook (data, timestamp, 'bids', 'asks', offset - 2, offset - 1);
+        const orderbook = this.parseOrderBook (data, timestamp, 'bids', 'asks', level - 2, level - 1);
         orderbook['nonce'] = this.safeInteger (data, 'sequence');
         return orderbook;
     }
@@ -711,7 +764,7 @@ module.exports = class kucoin extends Exchange {
             'datetime': this.iso8601 (timestamp),
             'fee': undefined,
             'status': 'open',
-            'clientOid': clientOid,
+            'clientOrderId': clientOid,
             'info': data,
         };
         if (!this.safeValue (params, 'quoteAmount')) {
@@ -897,8 +950,10 @@ module.exports = class kucoin extends Exchange {
                 }
             }
         }
+        const clientOrderId = this.safeString (order, 'clientOid');
         return {
             'id': orderId,
+            'clientOrderId': clientOrderId,
             'symbol': symbol,
             'type': type,
             'side': side,
@@ -912,6 +967,9 @@ module.exports = class kucoin extends Exchange {
             'fee': fee,
             'status': status,
             'info': order,
+            'lastTradeTimestamp': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/kuna.js b/BackendServers/node_modules/ccxt/js/kuna.js
similarity index 89%
rename from WebServer/node_modules/ccxt/js/kuna.js
rename to BackendServers/node_modules/ccxt/js/kuna.js
index 63e4225c2..d688a838c 100644
--- a/WebServer/node_modules/ccxt/js/kuna.js
+++ b/BackendServers/node_modules/ccxt/js/kuna.js
@@ -18,11 +18,12 @@ module.exports = class kuna extends acx {
             'has': {
                 'CORS': false,
                 'fetchTickers': true,
-                'fetchOHLCV': false,
+                'fetchOHLCV': 'emulated',
                 'fetchOpenOrders': true,
                 'fetchMyTrades': true,
                 'withdraw': false,
             },
+            'timeframes': undefined,
             'urls': {
                 'referral': 'https://kuna.io?r=kunaid-gvfihe8az7o4',
                 'logo': 'https://user-images.githubusercontent.com/1294454/31697638-912824fa-b3c1-11e7-8c36-cf9606eb94ac.jpg',
@@ -103,6 +104,8 @@ module.exports = class kuna extends acx {
                                 'max': undefined,
                             },
                         },
+                        'active': undefined,
+                        'info': undefined,
                     });
                     break;
                 }
@@ -189,4 +192,23 @@ module.exports = class kuna extends acx {
         const response = await this.privateGetTradesMy (this.extend (request, params));
         return this.parseTrades (response, market, since, limit);
     }
+
+    async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limits = undefined, params = {}) {
+        await this.loadMarkets ();
+        const trades = await this.fetchTrades (symbol, since, limits, params);
+        const ohlcvc = this.buildOHLCVC (trades, timeframe, since, limits);
+        const result = [];
+        for (let i = 0; i < ohlcvc.length; i++) {
+            const ohlcv = ohlcvc[i];
+            result.push ([
+                ohlcv[0],
+                ohlcv[1],
+                ohlcv[2],
+                ohlcv[3],
+                ohlcv[4],
+                ohlcv[5],
+            ]);
+        }
+        return result;
+    }
 };
diff --git a/WebServer/node_modules/ccxt/js/lakebtc.js b/BackendServers/node_modules/ccxt/js/lakebtc.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/lakebtc.js
rename to BackendServers/node_modules/ccxt/js/lakebtc.js
index 522584224..396bf0b69 100644
--- a/WebServer/node_modules/ccxt/js/lakebtc.js
+++ b/BackendServers/node_modules/ccxt/js/lakebtc.js
@@ -78,6 +78,9 @@ module.exports = class lakebtc extends Exchange {
                 'baseId': baseId,
                 'quoteId': quoteId,
                 'info': market,
+                'active': undefined,
+                'precision': this.precision,
+                'limits': this.limits,
             });
         }
         return result;
diff --git a/WebServer/node_modules/ccxt/js/latoken.js b/BackendServers/node_modules/ccxt/js/latoken.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/latoken.js
rename to BackendServers/node_modules/ccxt/js/latoken.js
index 3b69f04f3..aedf173a1 100644
--- a/WebServer/node_modules/ccxt/js/latoken.js
+++ b/BackendServers/node_modules/ccxt/js/latoken.js
@@ -648,8 +648,10 @@ module.exports = class latoken extends Exchange {
         if ((timeFilled !== undefined) && (timeFilled > 0)) {
             lastTradeTimestamp = timeFilled;
         }
+        const clientOrderId = this.safeString (order, 'cliOrdId');
         return {
             'id': id,
+            'clientOrderId': clientOrderId,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -665,6 +667,7 @@ module.exports = class latoken extends Exchange {
             'average': undefined,
             'remaining': remaining,
             'fee': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/lbank.js b/BackendServers/node_modules/ccxt/js/lbank.js
similarity index 96%
rename from WebServer/node_modules/ccxt/js/lbank.js
rename to BackendServers/node_modules/ccxt/js/lbank.js
index c63e53959..41df417f7 100644
--- a/WebServer/node_modules/ccxt/js/lbank.js
+++ b/BackendServers/node_modules/ccxt/js/lbank.js
@@ -3,7 +3,7 @@
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError, DDoSProtection, AuthenticationError, InvalidOrder } = require ('./base/errors');
+const { ExchangeError, DDoSProtection, AuthenticationError, InvalidOrder, ArgumentsRequired } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -339,10 +339,10 @@ module.exports = class lbank extends Exchange {
         await this.loadMarkets ();
         const market = this.market (symbol);
         if (since === undefined) {
-            throw new ExchangeError (this.id + ' fetchOHLCV requires a `since` argument');
+            throw new ArgumentsRequired (this.id + ' fetchOHLCV requires a `since` argument');
         }
         if (limit === undefined) {
-            throw new ExchangeError (this.id + ' fetchOHLCV requires a `limit` argument');
+            throw new ArgumentsRequired (this.id + ' fetchOHLCV requires a `limit` argument');
         }
         const request = {
             'symbol': market['id'],
@@ -409,6 +409,19 @@ module.exports = class lbank extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "symbol"："eth_btc",
+        //         "amount"：10.000000,
+        //         "create_time"：1484289832081,
+        //         "price"：5000.000000,
+        //         "avg_price"：5277.301200,
+        //         "type"："sell",
+        //         "order_id"："ab704110-af0d-48fd-a083-c218f19a4a55",
+        //         "deal_amount"：10.000000,
+        //         "status"：2
+        //     }
+        //
         let symbol = undefined;
         const responseMarket = this.safeValue (this.marketsById, order['symbol']);
         if (responseMarket !== undefined) {
@@ -439,6 +452,7 @@ module.exports = class lbank extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -454,6 +468,7 @@ module.exports = class lbank extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': this.safeValue (order, 'info', order),
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/liquid.js b/BackendServers/node_modules/ccxt/js/liquid.js
similarity index 92%
rename from WebServer/node_modules/ccxt/js/liquid.js
rename to BackendServers/node_modules/ccxt/js/liquid.js
index 1b7a4b66d..83e930a23 100644
--- a/WebServer/node_modules/ccxt/js/liquid.js
+++ b/BackendServers/node_modules/ccxt/js/liquid.js
@@ -177,7 +177,7 @@ module.exports = class liquid extends Exchange {
     }
 
     async fetchMarkets (params = {}) {
-        const markets = await this.publicGetProducts ();
+        const spot = await this.publicGetProducts (params);
         //
         //     [
         //         {
@@ -208,20 +208,69 @@ module.exports = class liquid extends Exchange {
         //         },
         //     ]
         //
+        const perpetual = await this.publicGetProducts ({ 'perpetual': '1' });
+        //
+        //     [
+        //         {
+        //             "id": "603",
+        //             "product_type": "Perpetual",
+        //             "code": "CASH",
+        //             "name": null,
+        //             "market_ask": "1143900",
+        //             "market_bid": "1143250",
+        //             "currency": "JPY",
+        //             "currency_pair_code": "P-BTCJPY",
+        //             "pusher_channel": "product_cash_p-btcjpy_603",
+        //             "taker_fee": "0.0",
+        //             "maker_fee": "0.0",
+        //             "low_market_bid": "1124450.0",
+        //             "high_market_ask": "1151750.0",
+        //             "volume_24h": "0.1756",
+        //             "last_price_24h": "1129850.0",
+        //             "last_traded_price": "1144700.0",
+        //             "last_traded_quantity": "0.014",
+        //             "quoted_currency": "JPY",
+        //             "base_currency": "P-BTC",
+        //             "tick_size": "50.0",
+        //             "perpetual_enabled": true,
+        //             "index_price": "1142636.03935",
+        //             "mark_price": "1143522.18417",
+        //             "funding_rate": "0.00033",
+        //             "fair_price": "1143609.31009",
+        //             "timestamp": "1581558659.195353100",
+        //         },
+        //     ]
+        //
         const currencies = await this.fetchCurrencies ();
         const currenciesByCode = this.indexBy (currencies, 'code');
         const result = [];
+        const markets = this.arrayConcat (spot, perpetual);
         for (let i = 0; i < markets.length; i++) {
             const market = markets[i];
-            const id = market['id'].toString ();
-            const baseId = market['base_currency'];
-            const quoteId = market['quoted_currency'];
+            const id = this.safeString (market, 'id');
+            const baseId = this.safeString (market, 'base_currency');
+            const quoteId = this.safeString (market, 'quoted_currency');
+            const productType = this.safeString (market, 'product_type');
+            let type = 'spot';
+            let spot = true;
+            let swap = false;
+            if (productType === 'Perpetual') {
+                spot = false;
+                swap = true;
+                type = 'swap';
+            }
             const base = this.safeCurrencyCode (baseId);
             const quote = this.safeCurrencyCode (quoteId);
-            const symbol = base + '/' + quote;
+            let symbol = undefined;
+            if (swap) {
+                symbol = this.safeString (market, 'currency_pair_code');
+            } else {
+                symbol = base + '/' + quote;
+            }
             const maker = this.safeFloat (market, 'maker_fee');
             const taker = this.safeFloat (market, 'taker_fee');
-            const active = !market['disabled'];
+            const disabled = this.safeValue (market, 'disabled', false);
+            const active = !disabled;
             const baseCurrency = this.safeValue (currenciesByCode, base);
             const quoteCurrency = this.safeValue (currenciesByCode, quote);
             const precision = {
@@ -265,6 +314,9 @@ module.exports = class liquid extends Exchange {
                 'quote': quote,
                 'baseId': baseId,
                 'quoteId': quoteId,
+                'type': type,
+                'spot': spot,
+                'swap': swap,
                 'maker': maker,
                 'taker': taker,
                 'limits': limits,
@@ -393,7 +445,7 @@ module.exports = class liquid extends Exchange {
         return this.parseTicker (response, market);
     }
 
-    parseTrade (trade, market) {
+    parseTrade (trade, market = undefined) {
         // {             id:  12345,
         //         quantity: "6.789",
         //            price: "98765.4321",
@@ -420,13 +472,17 @@ module.exports = class liquid extends Exchange {
             }
         }
         const id = this.safeString (trade, 'id');
+        let symbol = undefined;
+        if (market !== undefined) {
+            symbol = market['symbol'];
+        }
         return {
             'info': trade,
             'id': id,
             'order': orderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
-            'symbol': market['symbol'],
+            'symbol': symbol,
             'type': undefined,
             'side': side,
             'takerOrMaker': takerOrMaker,
@@ -658,6 +714,7 @@ module.exports = class liquid extends Exchange {
         const side = this.safeString (order, 'side');
         return {
             'id': orderId,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
diff --git a/WebServer/node_modules/ccxt/js/livecoin.js b/BackendServers/node_modules/ccxt/js/livecoin.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/livecoin.js
rename to BackendServers/node_modules/ccxt/js/livecoin.js
index 4fa38d12e..9f8395531 100644
--- a/WebServer/node_modules/ccxt/js/livecoin.js
+++ b/BackendServers/node_modules/ccxt/js/livecoin.js
@@ -255,6 +255,9 @@ module.exports = class livecoin extends Exchange {
                     'max': Math.pow (10, precision),
                 },
             },
+            'id': undefined,
+            'code': undefined,
+            'name': undefined,
         };
         const currencies = [
             { 'id': 'USD', 'code': 'USD', 'name': 'US Dollar' },
@@ -603,6 +606,7 @@ module.exports = class livecoin extends Exchange {
         return {
             'info': order,
             'id': order['id'],
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -621,6 +625,7 @@ module.exports = class livecoin extends Exchange {
                 'currency': feeCurrency,
                 'rate': feeRate,
             },
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/luno.js b/BackendServers/node_modules/ccxt/js/luno.js
similarity index 95%
rename from WebServer/node_modules/ccxt/js/luno.js
rename to BackendServers/node_modules/ccxt/js/luno.js
index aa6986fdd..26538662a 100644
--- a/WebServer/node_modules/ccxt/js/luno.js
+++ b/BackendServers/node_modules/ccxt/js/luno.js
@@ -103,6 +103,9 @@ module.exports = class luno extends Exchange {
                 'baseId': baseId,
                 'quoteId': quoteId,
                 'info': market,
+                'active': undefined,
+                'precision': this.precision,
+                'limits': this.limits,
             });
         }
         return result;
@@ -145,6 +148,23 @@ module.exports = class luno extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "base": "string",
+        //         "completed_timestamp": "string",
+        //         "counter": "string",
+        //         "creation_timestamp": "string",
+        //         "expiration_timestamp": "string",
+        //         "fee_base": "string",
+        //         "fee_counter": "string",
+        //         "limit_price": "string",
+        //         "limit_volume": "string",
+        //         "order_id": "string",
+        //         "pair": "string",
+        //         "state": "PENDING",
+        //         "type": "BID"
+        //     }
+        //
         const timestamp = this.safeInteger (order, 'creation_timestamp');
         const status = (order['state'] === 'PENDING') ? 'open' : 'closed';
         const side = (order['type'] === 'ASK') ? 'sell' : 'buy';
@@ -183,6 +203,7 @@ module.exports = class luno extends Exchange {
         const id = this.safeString (order, 'order_id');
         return {
             'id': id,
+            'clientOrderId': undefined,
             'datetime': this.iso8601 (timestamp),
             'timestamp': timestamp,
             'lastTradeTimestamp': undefined,
@@ -198,6 +219,7 @@ module.exports = class luno extends Exchange {
             'trades': undefined,
             'fee': fee,
             'info': order,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/lykke.js b/BackendServers/node_modules/ccxt/js/lykke.js
similarity index 95%
rename from WebServer/node_modules/ccxt/js/lykke.js
rename to BackendServers/node_modules/ccxt/js/lykke.js
index a18711500..2e69a172e 100644
--- a/WebServer/node_modules/ccxt/js/lykke.js
+++ b/BackendServers/node_modules/ccxt/js/lykke.js
@@ -255,6 +255,8 @@ module.exports = class lykke extends Exchange {
                         'max': undefined,
                     },
                 },
+                'baseId': undefined,
+                'quoteId': undefined,
             });
         }
         return result;
@@ -316,6 +318,23 @@ module.exports = class lykke extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "Id": "string",
+        //         "Status": "Unknown",
+        //         "AssetPairId": "string",
+        //         "Volume": 0,
+        //         "Price": 0,
+        //         "RemainingVolume": 0,
+        //         "LastMatchTime": "2020-03-26T20:58:50.710Z",
+        //         "CreatedAt": "2020-03-26T20:58:50.710Z",
+        //         "Type": "Unknown",
+        //         "LowerLimitPrice": 0,
+        //         "LowerPrice": 0,
+        //         "UpperLimitPrice": 0,
+        //         "UpperPrice": 0
+        //     }
+        //
         const status = this.parseOrderStatus (this.safeString (order, 'Status'));
         let symbol = undefined;
         if (market === undefined) {
@@ -341,6 +360,7 @@ module.exports = class lykke extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -355,6 +375,7 @@ module.exports = class lykke extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/mercado.js b/BackendServers/node_modules/ccxt/js/mercado.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/mercado.js
rename to BackendServers/node_modules/ccxt/js/mercado.js
index ed02fd5b2..6be269e14 100644
--- a/WebServer/node_modules/ccxt/js/mercado.js
+++ b/BackendServers/node_modules/ccxt/js/mercado.js
@@ -352,6 +352,7 @@ module.exports = class mercado extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -398,17 +399,17 @@ module.exports = class mercado extends Exchange {
         if (code === 'BRL') {
             const account_ref = ('account_ref' in params);
             if (!account_ref) {
-                throw new ExchangeError (this.id + ' requires account_ref parameter to withdraw ' + code);
+                throw new ArgumentsRequired (this.id + ' requires account_ref parameter to withdraw ' + code);
             }
         } else if (code !== 'LTC') {
             const tx_fee = ('tx_fee' in params);
             if (!tx_fee) {
-                throw new ExchangeError (this.id + ' requires tx_fee parameter to withdraw ' + code);
+                throw new ArgumentsRequired (this.id + ' requires tx_fee parameter to withdraw ' + code);
             }
             if (code === 'XRP') {
                 if (tag === undefined) {
                     if (!('destination_tag' in params)) {
-                        throw new ExchangeError (this.id + ' requires a tag argument or destination_tag parameter to withdraw ' + code);
+                        throw new ArgumentsRequired (this.id + ' requires a tag argument or destination_tag parameter to withdraw ' + code);
                     }
                 } else {
                     request['destination_tag'] = tag;
diff --git a/WebServer/node_modules/ccxt/js/mixcoins.js b/BackendServers/node_modules/ccxt/js/mixcoins.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/mixcoins.js
rename to BackendServers/node_modules/ccxt/js/mixcoins.js
diff --git a/WebServer/node_modules/ccxt/js/oceanex.js b/BackendServers/node_modules/ccxt/js/oceanex.js
similarity index 97%
rename from WebServer/node_modules/ccxt/js/oceanex.js
rename to BackendServers/node_modules/ccxt/js/oceanex.js
index 3c713969a..4cea6ef6b 100644
--- a/WebServer/node_modules/ccxt/js/oceanex.js
+++ b/BackendServers/node_modules/ccxt/js/oceanex.js
@@ -556,6 +556,23 @@ module.exports = class oceanex extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "created_at": "2019-01-18T00:38:18Z",
+        //         "trades_count": 0,
+        //         "remaining_volume": "0.2",
+        //         "price": "1001.0",
+        //         "created_on": "1547771898",
+        //         "side": "buy",
+        //         "volume": "0.2",
+        //         "state": "wait",
+        //         "ord_type": "limit",
+        //         "avg_price": "0.0",
+        //         "executed_volume": "0.0",
+        //         "id": 473797,
+        //         "market": "veteth"
+        //     }
+        //
         const status = this.parseOrderStatus (this.safeValue (order, 'state'));
         const marketId = this.safeValue2 (order, 'market', 'market_id');
         let symbol = undefined;
@@ -579,6 +596,7 @@ module.exports = class oceanex extends Exchange {
         return {
             'info': order,
             'id': this.safeString (order, 'id'),
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
diff --git a/BackendServers/node_modules/ccxt/js/okcoin.js b/BackendServers/node_modules/ccxt/js/okcoin.js
new file mode 100644
index 000000000..59c0c3cb2
--- /dev/null
+++ b/BackendServers/node_modules/ccxt/js/okcoin.js
@@ -0,0 +1,35 @@
+'use strict';
+
+// ---------------------------------------------------------------------------
+
+const okex = require ('./okex.js');
+
+// ---------------------------------------------------------------------------
+
+module.exports = class okcoin extends okex {
+    describe () {
+        return this.deepExtend (super.describe (), {
+            'id': 'okcoin',
+            'name': 'OKCoin',
+            'countries': [ 'CN', 'US' ],
+            'hostname': 'okcoin.com',
+            'pro': true,
+            'urls': {
+                'logo': 'https://user-images.githubusercontent.com/1294454/27766791-89ffb502-5ee5-11e7-8a5b-c5950b68ac65.jpg',
+                'www': 'https://www.okcoin.com',
+                'doc': 'https://www.okcoin.com/docs/en/',
+                'fees': 'https://www.okcoin.com/coin-fees',
+                'referral': 'https://www.okcoin.com/account/register?flag=activity&channelId=600001513',
+            },
+            'fees': {
+                'trading': {
+                    'taker': 0.002,
+                    'maker': 0.001,
+                },
+            },
+            'options': {
+                'fetchMarkets': [ 'spot' ],
+            },
+        });
+    }
+};
diff --git a/WebServer/node_modules/ccxt/js/okex3.js b/BackendServers/node_modules/ccxt/js/okex.js
similarity index 74%
rename from WebServer/node_modules/ccxt/js/okex3.js
rename to BackendServers/node_modules/ccxt/js/okex.js
index 22c83cce3..11afea9a9 100644
--- a/WebServer/node_modules/ccxt/js/okex3.js
+++ b/BackendServers/node_modules/ccxt/js/okex.js
@@ -3,18 +3,20 @@
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError, ExchangeNotAvailable, ArgumentsRequired, BadRequest, AccountSuspended, InvalidAddress, PermissionDenied, DDoSProtection, InsufficientFunds, InvalidNonce, CancelPending, InvalidOrder, OrderNotFound, AuthenticationError, RequestTimeout, NotSupported, BadSymbol } = require ('./base/errors');
+const { ExchangeError, ExchangeNotAvailable, OnMaintenance, ArgumentsRequired, BadRequest, AccountSuspended, InvalidAddress, PermissionDenied, DDoSProtection, InsufficientFunds, InvalidNonce, CancelPending, InvalidOrder, OrderNotFound, AuthenticationError, RequestTimeout, NotSupported, BadSymbol } = require ('./base/errors');
+const { TICK_SIZE, TRUNCATE } = require ('./base/functions/number');
 
 //  ---------------------------------------------------------------------------
 
-module.exports = class okex3 extends Exchange {
+module.exports = class okex extends Exchange {
     describe () {
         return this.deepExtend (super.describe (), {
-            'id': 'okex3',
+            'id': 'okex',
             'name': 'OKEX',
             'countries': [ 'CN', 'US' ],
             'version': 'v3',
             'rateLimit': 1000, // up to 3000 requests per 5 minutes ≈ 600 requests per minute ≈ 10 requests per second ≈ 100 ms
+            'pro': true,
             'has': {
                 'CORS': false,
                 'fetchOHLCV': true,
@@ -27,7 +29,7 @@ module.exports = class okex3 extends Exchange {
                 'fetchWithdrawals': true,
                 'fetchTime': true,
                 'fetchTransactions': false,
-                'fetchMyTrades': false, // they don't have it
+                'fetchMyTrades': true,
                 'fetchDepositAddress': true,
                 'fetchOrderTrades': true,
                 'fetchTickers': true,
@@ -49,12 +51,16 @@ module.exports = class okex3 extends Exchange {
                 '1d': '86400',
                 '1w': '604800',
             },
+            'hostname': 'okex.com',
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/32552768-0d6dd3c6-c4a6-11e7-90f8-c043b64756a7.jpg',
-                'api': 'https://www.okex.com',
+                'api': {
+                    'rest': 'https://www.{hostname}',
+                },
                 'www': 'https://www.okex.com',
                 'doc': 'https://www.okex.com/docs/en/',
                 'fees': 'https://www.okex.com/pages/products/fees.html',
+                'referral': 'https://www.okex.com/join/1888677',
             },
             'api': {
                 'general': {
@@ -64,16 +70,18 @@ module.exports = class okex3 extends Exchange {
                 },
                 'account': {
                     'get': [
-                        'currencies',
                         'wallet',
+                        'sub-account',
+                        'asset-valuation',
                         'wallet/{currency}',
-                        'withdrawal/fee',
                         'withdrawal/history',
                         'withdrawal/history/{currency}',
                         'ledger',
                         'deposit/address',
                         'deposit/history',
                         'deposit/history/{currency}',
+                        'currencies',
+                        'withdrawal/fee',
                     ],
                     'post': [
                         'transfer',
@@ -89,6 +97,7 @@ module.exports = class okex3 extends Exchange {
                         'orders_pending',
                         'orders/{order_id}',
                         'orders/{client_oid}',
+                        'trade_fee',
                         'fills',
                         'algo',
                         // public
@@ -119,10 +128,13 @@ module.exports = class okex3 extends Exchange {
                         'accounts/borrowed',
                         'accounts/{instrument_id}/borrowed',
                         'orders',
+                        'accounts/{instrument_id}/leverage',
                         'orders/{order_id}',
                         'orders/{client_oid}',
                         'orders_pending',
                         'fills',
+                        // public
+                        'instruments/{instrument_id}/mark_price',
                     ],
                     'post': [
                         'accounts/borrow',
@@ -133,6 +145,7 @@ module.exports = class okex3 extends Exchange {
                         'cancel_orders/{order_id}',
                         'cancel_orders/{client_oid}',
                         'cancel_batch_orders',
+                        'accounts/{instrument_id}/leverage',
                     ],
                 },
                 'futures': {
@@ -140,14 +153,17 @@ module.exports = class okex3 extends Exchange {
                         'position',
                         '{instrument_id}/position',
                         'accounts',
-                        'accounts/{currency}',
-                        'accounts/{currency}/leverage',
-                        'accounts/{currency}/ledger',
+                        'accounts/{underlying}',
+                        'accounts/{underlying}/leverage',
+                        'accounts/{underlying}/ledger',
                         'order_algo/{instrument_id}',
                         'orders/{instrument_id}',
                         'orders/{instrument_id}/{order_id}',
                         'orders/{instrument_id}/{client_oid}',
                         'fills',
+                        'trade_fee',
+                        'accounts/{instrument_id}/holds',
+                        'order_algo/{instrument_id}',
                         // public
                         'instruments',
                         'instruments/{instrument_id}/book',
@@ -155,27 +171,26 @@ module.exports = class okex3 extends Exchange {
                         'instruments/{instrument_id}/ticker',
                         'instruments/{instrument_id}/trades',
                         'instruments/{instrument_id}/candles',
-                        'accounts/{instrument_id}/holds',
                         'instruments/{instrument_id}/index',
                         'rate',
                         'instruments/{instrument_id}/estimated_price',
                         'instruments/{instrument_id}/open_interest',
                         'instruments/{instrument_id}/price_limit',
-                        'instruments/{instrument_id}/liquidation',
                         'instruments/{instrument_id}/mark_price',
+                        'instruments/{instrument_id}/liquidation',
                     ],
                     'post': [
-                        'accounts/{currency}/leverage',
-                        'accounts/margin_mode',
+                        'accounts/{underlying}/leverage',
                         'order',
                         'orders',
-                        'order_algo',
-                        'cancel_algos',
                         'cancel_order/{instrument_id}/{order_id}',
                         'cancel_order/{instrument_id}/{client_oid}',
                         'cancel_batch_orders/{instrument_id}',
+                        'accounts/margin_mode',
                         'close_position',
                         'cancel_all',
+                        'order_algo',
+                        'cancel_algos',
                     ],
                 },
                 'swap': {
@@ -186,12 +201,13 @@ module.exports = class okex3 extends Exchange {
                         '{instrument_id}/accounts',
                         'accounts/{instrument_id}/settings',
                         'accounts/{instrument_id}/ledger',
-                        'accounts/{instrument_id}/holds',
-                        'order_algo/{instrument_id}',
                         'orders/{instrument_id}',
                         'orders/{instrument_id}/{order_id}',
                         'orders/{instrument_id}/{client_oid}',
                         'fills',
+                        'accounts/{instrument_id}/holds',
+                        'trade_fee',
+                        'order_algo/{instrument_id}',
                         // public
                         'instruments',
                         'instruments/{instrument_id}/depth',
@@ -211,28 +227,48 @@ module.exports = class okex3 extends Exchange {
                     'post': [
                         'accounts/{instrument_id}/leverage',
                         'order',
-                        'order_algo',
                         'orders',
-                        'cancel_algos',
                         'cancel_order/{instrument_id}/{order_id}',
                         'cancel_order/{instrument_id}/{client_oid}',
                         'cancel_batch_orders/{instrument_id}',
+                        'order_algo',
+                        'cancel_algos',
                     ],
                 },
-                // they have removed this part from public
-                'ett': {
+                'option': {
                     'get': [
                         'accounts',
-                        'accounts/{currency}',
-                        'accounts/{currency}/ledger',
-                        'orders', // fetchOrder, fetchOrders
+                        '{underlying}/position',
+                        'accounts/{underlying}',
+                        'orders/{underlying}',
+                        'fills/{underlying}',
+                        'accounts/{underlying}/ledger',
+                        'trade_fee',
+                        'orders/{underlying}/{order_id}',
+                        'orders/{underlying}/{client_oid}',
                         // public
-                        'constituents/{ett}',
-                        'define-price/{ett}',
+                        'underlying',
+                        'instruments/{underlying}',
+                        'instruments/{underlying}/summary',
+                        'instruments/{underlying}/summary/{instrument_id}',
+                        'instruments/{instrument_id}/book',
+                        'instruments/{instrument_id}/trades',
+                        'instruments/{instrument_id}/ticker',
+                        'instruments/{instrument_id}/candles',
                     ],
                     'post': [
+                        'order',
                         'orders',
-                        'orders/{order_id}',
+                        'cancel_order/{underlying}/{order_id}',
+                        'cancel_order/{underlying}/{client_oid}',
+                        'cancel_batch_orders/{underlying}',
+                        'amend_order/{underlying}',
+                        'amend_batch_orders/{underlying}',
+                    ],
+                },
+                'index': {
+                    'get': [
+                        '{instrument_id}/constituents',
                     ],
                 },
             },
@@ -272,6 +308,10 @@ module.exports = class okex3 extends Exchange {
                     'failure to get a peer from the ring-balancer': ExchangeNotAvailable, // { "message": "failure to get a peer from the ring-balancer" }
                     '4010': PermissionDenied, // { "code": 4010, "message": "For the security of your funds, withdrawals are not permitted within 24 hours after changing fund password  / mobile number / Google Authenticator settings " }
                     // common
+                    // '0': ExchangeError, // 200 successful,when the order placement / cancellation / operation is successful
+                    '4001': ExchangeError, // no data received in 30s
+                    '4002': ExchangeError, // Buffer full. cannot write data
+                    // --------------------------------------------------------
                     '30001': AuthenticationError, // { "code": 30001, "message": 'request header "OK_ACCESS_KEY" cannot be blank'}
                     '30002': AuthenticationError, // { "code": 30002, "message": 'request header "OK_ACCESS_SIGN" cannot be blank'}
                     '30003': AuthenticationError, // { "code": 30003, "message": 'request header "OK_ACCESS_TIMESTAMP" cannot be blank'}
@@ -308,8 +348,9 @@ module.exports = class okex3 extends Exchange {
                     '30034': ExchangeError, // { "code": 30034, "message": "exchange ID does not exist" }
                     '30035': ExchangeError, // { "code": 30035, "message": "trading is not supported in this website" }
                     '30036': ExchangeError, // { "code": 30036, "message": "no relevant data" }
-                    '30038': AuthenticationError, // { "code": 30038, "message": "user does not exist" }
                     '30037': ExchangeNotAvailable, // { "code": 30037, "message": "endpoint is offline or unavailable" }
+                    // '30038': AuthenticationError, // { "code": 30038, "message": "user does not exist" }
+                    '30038': OnMaintenance, // {"client_oid":"","code":"30038","error_code":"30038","error_message":"Matching engine is being upgraded. Please try in about 1 minute.","message":"Matching engine is being upgraded. Please try in about 1 minute.","order_id":"-1","result":false}
                     // futures
                     '32001': AccountSuspended, // { "code": 32001, "message": "futures account suspended" }
                     '32002': PermissionDenied, // { "code": 32002, "message": "futures account does not exist" }
@@ -337,10 +378,51 @@ module.exports = class okex3 extends Exchange {
                     '32024': ExchangeError, // { "code": 32024, "message": "order cannot be placed during delivery" }
                     '32025': ExchangeError, // { "code": 32025, "message": "order cannot be placed during settlement" }
                     '32026': ExchangeError, // { "code": 32026, "message": "your account is restricted from opening positions" }
-                    '32029': ExchangeError, // { "code": 32029, "message": "order info does not exist" }
-                    '32028': ExchangeError, // { "code": 32028, "message": "account is suspended and liquidated" }
                     '32027': ExchangeError, // { "code": 32027, "message": "cancelled over 20 orders" }
+                    '32028': ExchangeError, // { "code": 32028, "message": "account is suspended and liquidated" }
+                    '32029': ExchangeError, // { "code": 32029, "message": "order info does not exist" }
+                    '32030': InvalidOrder, // The order cannot be cancelled
+                    '32031': ArgumentsRequired, // client_oid or order_id is required.
+                    '32038': AuthenticationError, // User does not exist
+                    '32040': ExchangeError, // User have open contract orders or position
                     '32044': ExchangeError, // { "code": 32044, "message": "The margin ratio after submitting this order is lower than the minimum requirement ({0}) for your tier." }
+                    '32045': ExchangeError, // String of commission over 1 million
+                    '32046': ExchangeError, // Each user can hold up to 10 trade plans at the same time
+                    '32047': ExchangeError, // system error
+                    '32048': InvalidOrder, // Order strategy track range error
+                    '32049': ExchangeError, // Each user can hold up to 10 track plans at the same time
+                    '32050': InvalidOrder, // Order strategy rang error
+                    '32051': InvalidOrder, // Order strategy ice depth error
+                    '32052': ExchangeError, // String of commission over 100 thousand
+                    '32053': ExchangeError, // Each user can hold up to 6 ice plans at the same time
+                    '32057': ExchangeError, // The order price is zero. Market-close-all function cannot be executed
+                    '32054': ExchangeError, // Trade not allow
+                    '32055': InvalidOrder, // cancel order error
+                    '32056': ExchangeError, // iceberg per order average should between {0}-{1} contracts
+                    '32058': ExchangeError, // Each user can hold up to 6 initiative plans at the same time
+                    '32059': InvalidOrder, // Total amount should exceed per order amount
+                    '32060': InvalidOrder, // Order strategy type error
+                    '32061': InvalidOrder, // Order strategy initiative limit error
+                    '32062': InvalidOrder, // Order strategy initiative range error
+                    '32063': InvalidOrder, // Order strategy initiative rate error
+                    '32064': ExchangeError, // Time Stringerval of orders should set between 5-120s
+                    '32065': ExchangeError, // Close amount exceeds the limit of Market-close-all (999 for BTC, and 9999 for the rest tokens)
+                    '32066': ExchangeError, // You have open orders. Please cancel all open orders before changing your leverage level.
+                    '32067': ExchangeError, // Account equity < required margin in this setting. Please adjust your leverage level again.
+                    '32068': ExchangeError, // The margin for this position will fall short of the required margin in this setting. Please adjust your leverage level or increase your margin to proceed.
+                    '32069': ExchangeError, // Target leverage level too low. Your account balance is insufficient to cover the margin required. Please adjust the leverage level again.
+                    '32070': ExchangeError, // Please check open position or unfilled order
+                    '32071': ExchangeError, // Your current liquidation mode does not support this action.
+                    '32072': ExchangeError, // The highest available margin for your order’s tier is {0}. Please edit your margin and place a new order.
+                    '32073': ExchangeError, // The action does not apply to the token
+                    '32074': ExchangeError, // The number of contracts of your position, open orders, and the current order has exceeded the maximum order limit of this asset.
+                    '32075': ExchangeError, // Account risk rate breach
+                    '32076': ExchangeError, // Liquidation of the holding position(s) at market price will require cancellation of all pending close orders of the contracts.
+                    '32077': ExchangeError, // Your margin for this asset in futures account is insufficient and the position has been taken over for liquidation. (You will not be able to place orders, close positions, transfer funds, or add margin during this period of time. Your account will be restored after the liquidation is complete.)
+                    '32078': ExchangeError, // Please cancel all open orders before switching the liquidation mode(Please cancel all open orders before switching the liquidation mode)
+                    '32079': ExchangeError, // Your open positions are at high risk.(Please add margin or reduce positions before switching the mode)
+                    '32080': ExchangeError, // Funds cannot be transferred out within 30 minutes after futures settlement
+                    '32083': ExchangeError, // The number of contracts should be a positive multiple of %%. Please place your order again
                     // token and margin trading
                     '33001': PermissionDenied, // { "code": 33001, "message": "margin account for this pair is not enabled yet" }
                     '33002': AccountSuspended, // { "code": 33002, "message": "margin account for this pair is suspended" }
@@ -371,9 +453,32 @@ module.exports = class okex3 extends Exchange {
                     '33028': InvalidOrder, // { "code": 33028, "message": "the decimal places of the trading price exceeded the limit" }
                     '33029': InvalidOrder, // { "code": 33029, "message": "the decimal places of the trading size exceeded the limit" }
                     '33034': ExchangeError, // { "code": 33034, "message": "You can only place limit order after Call Auction has started" }
+                    '33035': ExchangeError, // This type of order cannot be canceled(This type of order cannot be canceled)
+                    '33036': ExchangeError, // Exceeding the limit of entrust order
+                    '33037': ExchangeError, // The buy order price should be lower than 130% of the trigger price
+                    '33038': ExchangeError, // The sell order price should be higher than 70% of the trigger price
+                    '33039': ExchangeError, // The limit of callback rate is 0 < x <= 5%
+                    '33040': ExchangeError, // The trigger price of a buy order should be lower than the latest transaction price
+                    '33041': ExchangeError, // The trigger price of a sell order should be higher than the latest transaction price
+                    '33042': ExchangeError, // The limit of price variance is 0 < x <= 1%
+                    '33043': ExchangeError, // The total amount must be larger than 0
+                    '33044': ExchangeError, // The average amount should be 1/1000 * total amount <= x <= total amount
+                    '33045': ExchangeError, // The price should not be 0, including trigger price, order price, and price limit
+                    '33046': ExchangeError, // Price variance should be 0 < x <= 1%
+                    '33047': ExchangeError, // Sweep ratio should be 0 < x <= 100%
+                    '33048': ExchangeError, // Per order limit: Total amount/1000 < x <= Total amount
+                    '33049': ExchangeError, // Total amount should be X > 0
+                    '33050': ExchangeError, // Time interval should be 5 <= x <= 120s
+                    '33051': ExchangeError, // cancel order number not higher limit: plan and track entrust no more than 10, ice and time entrust no more than 6
                     '33059': BadRequest, // { "code": 33059, "message": "client_oid or order_id is required" }
                     '33060': BadRequest, // { "code": 33060, "message": "Only fill in either parameter client_oid or order_id" }
+                    '33061': ExchangeError, // Value of a single market price order cannot exceed 100,000 USD
+                    '33062': ExchangeError, // The leverage ratio is too high. The borrowed position has exceeded the maximum position of this leverage ratio. Please readjust the leverage ratio
+                    '33063': ExchangeError, // Leverage multiple is too low, there is insufficient margin in the account, please readjust the leverage ratio
+                    '33064': ExchangeError, // The setting of the leverage ratio cannot be less than 2, please readjust the leverage ratio
+                    '33065': ExchangeError, // Leverage ratio exceeds maximum leverage ratio, please readjust leverage ratio
                     // account
+                    '21009': ExchangeError, // Funds cannot be transferred out within 30 minutes after swap settlement(Funds cannot be transferred out within 30 minutes after swap settlement)
                     '34001': PermissionDenied, // { "code": 34001, "message": "withdrawal suspended" }
                     '34002': InvalidAddress, // { "code": 34002, "message": "please add a withdrawal address" }
                     '34003': ExchangeError, // { "code": 34003, "message": "sorry, this token cannot be withdrawn to xx at the moment" }
@@ -397,6 +502,11 @@ module.exports = class okex3 extends Exchange {
                     '34021': InvalidAddress, // { "code": 34021, "message": "Not verified address" }
                     '34022': ExchangeError, // { "code": 34022, "message": "Withdrawals are not available for sub accounts" }
                     '34023': PermissionDenied, // { "code": 34023, "message": "Please enable futures trading before transferring your funds" }
+                    '34026': ExchangeError, // transfer too frequently(transfer too frequently)
+                    '34036': ExchangeError, // Parameter is incorrect, please refer to API documentation
+                    '34037': ExchangeError, // Get the sub-account balance interface, account type is not supported
+                    '34038': ExchangeError, // Since your C2C transaction is unusual, you are restricted from fund transfer. Please contact our customer support to cancel the restriction
+                    '34039': ExchangeError, // You are now restricted from transferring out your funds due to abnormal trades on C2C Market. Please transfer your fund on our website or app instead to verify your identity
                     // swap
                     '35001': ExchangeError, // { "code": 35001, "message": "Contract does not exist" }
                     '35002': ExchangeError, // { "code": 35002, "message": "Contract settling" }
@@ -420,6 +530,7 @@ module.exports = class okex3 extends Exchange {
                     '35030': InvalidOrder, // { "code": 35030, "message": "Order size too large" }
                     '35031': InvalidOrder, // { "code": 35031, "message": "Cancel order size too large" }
                     '35032': ExchangeError, // { "code": 35032, "message": "Invalid user status" }
+                    '35037': ExchangeError, // No last traded price in cache
                     '35039': ExchangeError, // { "code": 35039, "message": "Open order quantity exceeds limit" }
                     '35040': InvalidOrder, // {"error_message":"Invalid order type","result":"true","error_code":"35040","order_id":"-1"}
                     '35044': ExchangeError, // { "code": 35044, "message": "Invalid order status" }
@@ -439,21 +550,97 @@ module.exports = class okex3 extends Exchange {
                     '35062': InvalidOrder, // { "code": 35062, "message": "Invalid match_price" }
                     '35063': InvalidOrder, // { "code": 35063, "message": "Invalid order_size" }
                     '35064': InvalidOrder, // { "code": 35064, "message": "Invalid client_oid" }
+                    '35066': InvalidOrder, // Order interval error
+                    '35067': InvalidOrder, // Time-weighted order ratio error
+                    '35068': InvalidOrder, // Time-weighted order range error
+                    '35069': InvalidOrder, // Time-weighted single transaction limit error
+                    '35070': InvalidOrder, // Algo order type error
+                    '35071': InvalidOrder, // Order total must be larger than single order limit
+                    '35072': InvalidOrder, // Maximum 6 unfulfilled time-weighted orders can be held at the same time
+                    '35073': InvalidOrder, // Order price is 0. Market-close-all not available
+                    '35074': InvalidOrder, // Iceberg order single transaction average error
+                    '35075': InvalidOrder, // Failed to cancel order
+                    '35076': InvalidOrder, // LTC 20x leverage. Not allowed to open position
+                    '35077': InvalidOrder, // Maximum 6 unfulfilled iceberg orders can be held at the same time
+                    '35078': InvalidOrder, // Order amount exceeded 100,000
+                    '35079': InvalidOrder, // Iceberg order price variance error
+                    '35080': InvalidOrder, // Callback rate error
+                    '35081': InvalidOrder, // Maximum 10 unfulfilled trail orders can be held at the same time
+                    '35082': InvalidOrder, // Trail order callback rate error
+                    '35083': InvalidOrder, // Each user can only hold a maximum of 10 unfulfilled stop-limit orders at the same time
+                    '35084': InvalidOrder, // Order amount exceeded 1 million
+                    '35085': InvalidOrder, // Order amount is not in the correct range
+                    '35086': InvalidOrder, // Price exceeds 100 thousand
+                    '35087': InvalidOrder, // Price exceeds 100 thousand
+                    '35088': InvalidOrder, // Average amount error
+                    '35089': InvalidOrder, // Price exceeds 100 thousand
+                    '35090': ExchangeError, // No stop-limit orders available for cancelation
+                    '35091': ExchangeError, // No trail orders available for cancellation
+                    '35092': ExchangeError, // No iceberg orders available for cancellation
+                    '35093': ExchangeError, // No trail orders available for cancellation
+                    '35094': ExchangeError, // Stop-limit order last traded price error
+                    '35095': BadRequest, // Instrument_id error
+                    '35096': ExchangeError, // Algo order status error
+                    '35097': ExchangeError, // Order status and order ID cannot exist at the same time
+                    '35098': ExchangeError, // An order status or order ID must exist
+                    '35099': ExchangeError, // Algo order ID error
+                    // option
+                    '36001': BadRequest, // Invalid underlying index.
+                    '36002': BadRequest, // Instrument does not exist.
+                    '36005': ExchangeError, // Instrument status is invalid.
+                    '36101': AuthenticationError, // Account does not exist.
+                    '36102': PermissionDenied, // Account status is invalid.
+                    '36103': PermissionDenied, // Account is suspended due to ongoing liquidation.
+                    '36104': PermissionDenied, // Account is not enabled for options trading.
+                    '36105': PermissionDenied, // Please enable the account for option contract.
+                    '36106': PermissionDenied, // Funds cannot be transferred in or out, as account is suspended.
+                    '36107': PermissionDenied, // Funds cannot be transferred out within 30 minutes after option exercising or settlement.
+                    '36108': InsufficientFunds, // Funds cannot be transferred in or out, as equity of the account is less than zero.
+                    '36109': PermissionDenied, // Funds cannot be transferred in or out during option exercising or settlement.
+                    '36201': PermissionDenied, // New order function is blocked.
+                    '36202': PermissionDenied, // Account does not have permission to short option.
+                    '36203': InvalidOrder, // Invalid format for client_oid.
+                    '36204': ExchangeError, // Invalid format for request_id.
+                    '36205': BadRequest, // Instrument id does not match underlying index.
+                    '36206': BadRequest, // Order_id and client_oid can not be used at the same time.
+                    '36207': InvalidOrder, // Either order price or fartouch price must be present.
+                    '36208': InvalidOrder, // Either order price or size must be present.
+                    '36209': InvalidOrder, // Either order_id or client_oid must be present.
+                    '36210': InvalidOrder, // Either order_ids or client_oids must be present.
+                    '36211': InvalidOrder, // Exceeding max batch size for order submission.
+                    '36212': InvalidOrder, // Exceeding max batch size for oder cancellation.
+                    '36213': InvalidOrder, // Exceeding max batch size for order amendment.
+                    '36214': ExchangeError, // Instrument does not have valid bid/ask quote.
+                    '36216': OrderNotFound, // Order does not exist.
+                    '36217': InvalidOrder, // Order submission failed.
+                    '36218': InvalidOrder, // Order cancellation failed.
+                    '36219': InvalidOrder, // Order amendment failed.
+                    '36220': InvalidOrder, // Order is pending cancel.
+                    '36221': InvalidOrder, // Order qty is not valid multiple of lot size.
+                    '36222': InvalidOrder, // Order price is breaching highest buy limit.
+                    '36223': InvalidOrder, // Order price is breaching lowest sell limit.
+                    '36224': InvalidOrder, // Exceeding max order size.
+                    '36225': InvalidOrder, // Exceeding max open order count for instrument.
+                    '36226': InvalidOrder, // Exceeding max open order count for underlying.
+                    '36227': InvalidOrder, // Exceeding max open size across all orders for underlying
+                    '36228': InvalidOrder, // Exceeding max available qty for instrument.
+                    '36229': InvalidOrder, // Exceeding max available qty for underlying.
+                    '36230': InvalidOrder, // Exceeding max position limit for underlying.
                 },
                 'broad': {
                 },
             },
+            'precisionMode': TICK_SIZE,
             'options': {
                 'createMarketBuyOrderRequiresPrice': true,
-                'fetchMarkets': [ 'spot', 'futures', 'swap' ],
-                'defaultType': 'spot', // 'account', 'spot', 'margin', 'futures', 'swap'
+                'fetchMarkets': [ 'spot', 'futures', 'swap', 'option' ],
+                'defaultType': 'spot', // 'account', 'spot', 'margin', 'futures', 'swap', 'option'
                 'auth': {
                     'time': 'public',
                     'currencies': 'private',
                     'instruments': 'public',
                     'rate': 'public',
-                    'constituents/{ett}': 'public',
-                    'define-price/{ett}': 'public',
+                    '{instrument_id}/constituents': 'public',
                 },
             },
             'commonCurrencies': {
@@ -501,85 +688,109 @@ module.exports = class okex3 extends Exchange {
         //
         // spot markets
         //
-        //     [ {   base_currency: "EOS",
-        //           instrument_id: "EOS-OKB",
-        //                min_size: "0.01",
-        //              product_id: "EOS-OKB",
-        //          quote_currency: "OKB",
-        //          size_increment: "0.000001",
-        //               tick_size: "0.0001"        },
-        //
-        //       ..., // the spot endpoint also returns ETT instruments
-        //
-        //       {   base_currency: "OK06ETT",
-        //          base_increment: "0.00000001",
-        //           base_min_size: "0.01",
-        //           instrument_id: "OK06ETT-USDT",
-        //                min_size: "0.01",
-        //              product_id: "OK06ETT-USDT",
-        //          quote_currency: "USDT",
-        //         quote_increment: "0.0001",
-        //          size_increment: "0.00000001",
-        //               tick_size: "0.0001"        } ]
+        //     {
+        //         base_currency: "EOS",
+        //         instrument_id: "EOS-OKB",
+        //         min_size: "0.01",
+        //         quote_currency: "OKB",
+        //         size_increment: "0.000001",
+        //         tick_size: "0.0001"
+        //     }
         //
         // futures markets
         //
-        //     [ {    instrument_id: "BTG-USD-190329",
-        //         underlying_index: "BTG",
-        //           quote_currency: "USD",
-        //                tick_size: "0.01",
-        //             contract_val: "10",
-        //                  listing: "2018-12-14",
-        //                 delivery: "2019-03-29",
-        //          trade_increment: "1"               }  ]
+        //     {
+        //         instrument_id: "XRP-USD-200320",
+        //         underlying_index: "XRP",
+        //         quote_currency: "USD",
+        //         tick_size: "0.0001",
+        //         contract_val: "10",
+        //         listing: "2020-03-06",
+        //         delivery: "2020-03-20",
+        //         trade_increment: "1",
+        //         alias: "this_week",
+        //         underlying: "XRP-USD",
+        //         base_currency: "XRP",
+        //         settlement_currency: "XRP",
+        //         is_inverse: "true",
+        //         contract_val_currency: "USD",
+        //     }
         //
         // swap markets
         //
-        //     [ {    instrument_id: "BTC-USD-SWAP",
-        //         underlying_index: "BTC",
-        //           quote_currency: "USD",
-        //                     coin: "BTC",
-        //             contract_val: "100",
-        //                  listing: "2018-10-23T20:11:00.443Z",
-        //                 delivery: "2018-10-24T20:11:00.443Z",
-        //           size_increment: "4",
-        //                tick_size: "4"                         }  ]
+        //     {
+        //         instrument_id: "BSV-USD-SWAP",
+        //         underlying_index: "BSV",
+        //         quote_currency: "USD",
+        //         coin: "BSV",
+        //         contract_val: "10",
+        //         listing: "2018-12-21T07:53:47.000Z",
+        //         delivery: "2020-03-14T08:00:00.000Z",
+        //         size_increment: "1",
+        //         tick_size: "0.01",
+        //         base_currency: "BSV",
+        //         underlying: "BSV-USD",
+        //         settlement_currency: "BSV",
+        //         is_inverse: "true",
+        //         contract_val_currency: "USD"
+        //     }
+        //
+        // options markets
+        //
+        //     {
+        //         instrument_id: 'BTC-USD-200327-4000-C',
+        //         underlying: 'BTC-USD',
+        //         settlement_currency: 'BTC',
+        //         contract_val: '0.1000',
+        //         option_type: 'C',
+        //         strike: '4000',
+        //         tick_size: '0.0005',
+        //         lot_size: '1.0000',
+        //         listing: '2019-12-25T08:30:36.302Z',
+        //         delivery: '2020-03-27T08:00:00.000Z',
+        //         state: '2',
+        //         trading_start_time: '2019-12-25T08:30:36.302Z',
+        //         timestamp: '2020-03-13T08:05:09.456Z',
+        //     }
         //
         const id = this.safeString (market, 'instrument_id');
         let marketType = 'spot';
         let spot = true;
         let future = false;
         let swap = false;
+        let option = false;
         let baseId = this.safeString (market, 'base_currency');
+        let quoteId = this.safeString (market, 'quote_currency');
         const contractVal = this.safeFloat (market, 'contract_val');
         if (contractVal !== undefined) {
-            marketType = 'swap';
-            spot = false;
-            swap = true;
-            baseId = this.safeString (market, 'coin');
-            const futuresAlias = this.safeString (market, 'alias');
-            if (futuresAlias !== undefined) {
-                swap = false;
-                future = true;
-                marketType = 'futures';
-                baseId = this.safeString (market, 'underlying_index');
+            if ('option_type' in market) {
+                marketType = 'option';
+                spot = false;
+                option = true;
+                const underlying = this.safeString (market, 'underlying');
+                const parts = underlying.split ('-');
+                baseId = this.safeString (parts, 0);
+                quoteId = this.safeString (parts, 1);
+            } else {
+                marketType = 'swap';
+                spot = false;
+                swap = true;
+                const futuresAlias = this.safeString (market, 'alias');
+                if (futuresAlias !== undefined) {
+                    swap = false;
+                    future = true;
+                    marketType = 'futures';
+                    baseId = this.safeString (market, 'underlying_index');
+                }
             }
         }
-        const quoteId = this.safeString (market, 'quote_currency');
         const base = this.safeCurrencyCode (baseId);
         const quote = this.safeCurrencyCode (quoteId);
         const symbol = spot ? (base + '/' + quote) : id;
-        let amountPrecision = this.safeString (market, 'size_increment');
-        if (amountPrecision !== undefined) {
-            amountPrecision = this.precisionFromString (amountPrecision);
-        }
-        let pricePrecision = this.safeString (market, 'tick_size');
-        if (pricePrecision !== undefined) {
-            pricePrecision = this.precisionFromString (pricePrecision);
-        }
+        const lotSize = this.safeFloat2 (market, 'lot_size', 'trade_increment');
         const precision = {
-            'amount': amountPrecision,
-            'price': pricePrecision,
+            'amount': this.safeFloat (market, 'size_increment', lotSize),
+            'price': this.safeFloat (market, 'tick_size'),
         };
         const minAmount = this.safeFloat2 (market, 'min_size', 'base_min_size');
         let minPrice = this.safeFloat (market, 'tick_size');
@@ -604,6 +815,7 @@ module.exports = class okex3 extends Exchange {
             'spot': spot,
             'futures': future,
             'swap': swap,
+            'option': option,
             'active': active,
             'precision': precision,
             'limits': {
@@ -624,46 +836,100 @@ module.exports = class okex3 extends Exchange {
     }
 
     async fetchMarketsByType (type, params = {}) {
-        const method = type + 'GetInstruments';
-        const response = await this[method] (params);
-        //
-        // spot markets
-        //
-        //     [ {   base_currency: "EOS",
-        //          base_increment: "0.000001",
-        //           base_min_size: "0.01",
-        //           instrument_id: "EOS-OKB",
-        //                min_size: "0.01",
-        //              product_id: "EOS-OKB",
-        //          quote_currency: "OKB",
-        //         quote_increment: "0.0001",
-        //          size_increment: "0.000001",
-        //               tick_size: "0.0001"    }      ]
-        //
-        // futures markets
-        //
-        //     [ {    instrument_id: "BTG-USD-190329",
-        //         underlying_index: "BTG",
-        //           quote_currency: "USD",
-        //                tick_size: "0.01",
-        //             contract_val: "10",
-        //                  listing: "2018-12-14",
-        //                 delivery: "2019-03-29",
-        //          trade_increment: "1"               }  ]
-        //
-        // swap markets
-        //
-        //     [ {    instrument_id: "BTC-USD-SWAP",
-        //         underlying_index: "BTC",
-        //           quote_currency: "USD",
-        //                     coin: "BTC",
-        //             contract_val: "100",
-        //                  listing: "2018-10-23T20:11:00.443Z",
-        //                 delivery: "2018-10-24T20:11:00.443Z",
-        //           size_increment: "4",
-        //                tick_size: "4"                         }  ]
-        //
-        return this.parseMarkets (response);
+        if (type === 'option') {
+            const underlying = await this.optionGetUnderlying (params);
+            let result = [];
+            for (let i = 0; i < underlying.length; i++) {
+                const response = await this.optionGetInstrumentsUnderlying ({
+                    'underlying': underlying[i],
+                });
+                //
+                // options markets
+                //
+                //     [
+                //         {
+                //             instrument_id: 'BTC-USD-200327-4000-C',
+                //             underlying: 'BTC-USD',
+                //             settlement_currency: 'BTC',
+                //             contract_val: '0.1000',
+                //             option_type: 'C',
+                //             strike: '4000',
+                //             tick_size: '0.0005',
+                //             lot_size: '1.0000',
+                //             listing: '2019-12-25T08:30:36.302Z',
+                //             delivery: '2020-03-27T08:00:00.000Z',
+                //             state: '2',
+                //             trading_start_time: '2019-12-25T08:30:36.302Z',
+                //             timestamp: '2020-03-13T08:05:09.456Z',
+                //         },
+                //     ]
+                //
+                result = this.arrayConcat (result, response);
+            }
+            return this.parseMarkets (result);
+        } else if ((type === 'spot') || (type === 'futures') || (type === 'swap')) {
+            const method = type + 'GetInstruments';
+            const response = await this[method] (params);
+            //
+            // spot markets
+            //
+            //     [
+            //         {
+            //             base_currency: "EOS",
+            //             instrument_id: "EOS-OKB",
+            //             min_size: "0.01",
+            //             quote_currency: "OKB",
+            //             size_increment: "0.000001",
+            //             tick_size: "0.0001"
+            //         }
+            //     ]
+            //
+            // futures markets
+            //
+            //     [
+            //         {
+            //             instrument_id: "XRP-USD-200320",
+            //             underlying_index: "XRP",
+            //             quote_currency: "USD",
+            //             tick_size: "0.0001",
+            //             contract_val: "10",
+            //             listing: "2020-03-06",
+            //             delivery: "2020-03-20",
+            //             trade_increment: "1",
+            //             alias: "this_week",
+            //             underlying: "XRP-USD",
+            //             base_currency: "XRP",
+            //             settlement_currency: "XRP",
+            //             is_inverse: "true",
+            //             contract_val_currency: "USD",
+            //         }
+            //     ]
+            //
+            // swap markets
+            //
+            //     [
+            //         {
+            //             instrument_id: "BSV-USD-SWAP",
+            //             underlying_index: "BSV",
+            //             quote_currency: "USD",
+            //             coin: "BSV",
+            //             contract_val: "10",
+            //             listing: "2018-12-21T07:53:47.000Z",
+            //             delivery: "2020-03-14T08:00:00.000Z",
+            //             size_increment: "1",
+            //             tick_size: "0.01",
+            //             base_currency: "BSV",
+            //             underlying: "BSV-USD",
+            //             settlement_currency: "BSV",
+            //             is_inverse: "true",
+            //             contract_val_currency: "USD"
+            //         }
+            //     ]
+            //
+            return this.parseMarkets (response);
+        } else {
+            throw new NotSupported (this.id + ' fetchMarketsByType does not support market type ' + type);
+        }
     }
 
     async fetchCurrencies (params = {}) {
@@ -768,6 +1034,7 @@ module.exports = class okex3 extends Exchange {
         const marketId = this.safeString (ticker, 'instrument_id');
         if (marketId in this.markets_by_id) {
             market = this.markets_by_id[marketId];
+            symbol = market['symbol'];
         } else if (marketId !== undefined) {
             const parts = marketId.split ('-');
             const numParts = parts.length;
@@ -780,7 +1047,7 @@ module.exports = class okex3 extends Exchange {
                 symbol = marketId;
             }
         }
-        if (market !== undefined) {
+        if ((symbol === undefined) && (market !== undefined)) {
             symbol = market['symbol'];
         }
         const last = this.safeFloat (ticker, 'last');
@@ -792,9 +1059,9 @@ module.exports = class okex3 extends Exchange {
             'high': this.safeFloat (ticker, 'high_24h'),
             'low': this.safeFloat (ticker, 'low_24h'),
             'bid': this.safeFloat (ticker, 'best_bid'),
-            'bidVolume': undefined,
+            'bidVolume': this.safeFloat (ticker, 'best_bid_size'),
             'ask': this.safeFloat (ticker, 'best_ask'),
-            'askVolume': undefined,
+            'askVolume': this.safeFloat (ticker, 'best_ask_size'),
             'vwap': undefined,
             'open': open,
             'close': last,
@@ -915,8 +1182,30 @@ module.exports = class okex3 extends Exchange {
         //         }
         //
         let symbol = undefined;
-        if (market !== undefined) {
+        const marketId = this.safeString (trade, 'instrument_id');
+        let base = undefined;
+        let quote = undefined;
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
             symbol = market['symbol'];
+            base = market['base'];
+            quote = market['quote'];
+        } else if (marketId !== undefined) {
+            const parts = marketId.split ('-');
+            const numParts = parts.length;
+            if (numParts === 2) {
+                const [ baseId, quoteId ] = parts;
+                base = this.safeCurrencyCode (baseId);
+                quote = this.safeCurrencyCode (quoteId);
+                symbol = base + '/' + quote;
+            } else {
+                symbol = marketId;
+            }
+        }
+        if ((symbol === undefined) && (market !== undefined)) {
+            symbol = market['symbol'];
+            base = market['base'];
+            quote = market['quote'];
         }
         const timestamp = this.parse8601 (this.safeString2 (trade, 'timestamp', 'created_at'));
         const price = this.safeFloat (trade, 'price');
@@ -938,10 +1227,7 @@ module.exports = class okex3 extends Exchange {
         const feeCost = this.safeFloat (trade, 'fee');
         let fee = undefined;
         if (feeCost !== undefined) {
-            let feeCurrency = undefined;
-            if (market !== undefined) {
-                feeCurrency = (side === 'buy') ? market['base'] : market['quote'];
-            }
+            const feeCurrency = (side === 'buy') ? base : quote;
             fee = {
                 // fee is either a positive number (invitation rebate)
                 // or a negative number (transaction fee deduction)
@@ -1340,12 +1626,12 @@ module.exports = class okex3 extends Exchange {
     }
 
     async fetchBalance (params = {}) {
-        await this.loadMarkets ();
         const defaultType = this.safeString2 (this.options, 'fetchBalance', 'defaultType');
         const type = this.safeString (params, 'type', defaultType);
         if (type === undefined) {
             throw new ArgumentsRequired (this.id + " fetchBalance requires a type parameter (one of 'account', 'spot', 'margin', 'futures', 'swap')");
         }
+        await this.loadMarkets ();
         const suffix = (type === 'account') ? 'Wallet' : 'Accounts';
         const method = type + 'Get' + suffix;
         const query = this.omit (params, 'type');
@@ -1475,6 +1761,10 @@ module.exports = class okex3 extends Exchange {
         //         ]
         //     }
         //
+        return this.parseBalanceByType (type, response);
+    }
+
+    parseBalanceByType (type, response) {
         if ((type === 'account') || (type === 'spot')) {
             return this.parseAccountBalance (response);
         } else if (type === 'margin') {
@@ -1529,10 +1819,13 @@ module.exports = class okex3 extends Exchange {
                                 notional = amount * price;
                             }
                         } else if (notional === undefined) {
-                            throw new InvalidOrder (this.id + " createOrder() requires the price argument with market buy orders to calculate total order cost (amount to spend), where cost = amount * price. Supply a price argument to createOrder() call if you want the cost to be calculated for you from price and amount, or, alternatively, add .options['createMarketBuyOrderRequiresPrice'] = false and supply the total cost value in the 'notional' extra parameter (the exchange-specific behaviour)");
+                            throw new InvalidOrder (this.id + " createOrder() requires the price argument with market buy orders to calculate total order cost (amount to spend), where cost = amount * price. Supply a price argument to createOrder() call if you want the cost to be calculated for you from price and amount, or, alternatively, add .options['createMarketBuyOrderRequiresPrice'] = false and supply the total cost value in the 'amount' argument or in the 'notional' extra parameter (the exchange-specific behaviour)");
                         }
+                    } else {
+                        notional = (notional === undefined) ? amount : notional;
                     }
-                    request['notional'] = this.costToPrecision (symbol, notional);
+                    const precision = market['precision']['price'];
+                    request['notional'] = this.decimalToPrecision (notional, TRUNCATE, precision, this.precisionMode);
                 } else {
                     request['size'] = this.amountToPrecision (symbol, amount);
                 }
@@ -1549,26 +1842,7 @@ module.exports = class okex3 extends Exchange {
         //         "result":true
         //     }
         //
-        const timestamp = this.milliseconds ();
-        const id = this.safeString (response, 'order_id');
-        return {
-            'info': response,
-            'id': id,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'lastTradeTimestamp': undefined,
-            'status': undefined,
-            'symbol': symbol,
-            'type': type,
-            'side': side,
-            'price': price,
-            'amount': amount,
-            'filled': undefined,
-            'remaining': undefined,
-            'cost': undefined,
-            'trades': undefined,
-            'fee': undefined,
-        };
+        return this.parseOrder (response, market);
     }
 
     async cancelOrder (id, symbol = undefined, params = {}) {
@@ -1775,9 +2049,11 @@ module.exports = class okex3 extends Exchange {
                 'currency': feeCurrency,
             };
         }
+        const clientOrderId = this.safeString (order, 'client_oid');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -1792,6 +2068,7 @@ module.exports = class okex3 extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': fee,
+            'trades': undefined,
         };
     }
 
@@ -2005,9 +2282,11 @@ module.exports = class okex3 extends Exchange {
     }
 
     parseDepositAddresses (addresses) {
-        const result = [];
+        const result = {};
         for (let i = 0; i < addresses.length; i++) {
-            result.push (this.parseDepositAddress (addresses[i]));
+            const address = this.parseDepositAddress (addresses[i]);
+            const code = address['currency'];
+            result[code] = address;
         }
         return result;
     }
@@ -2069,7 +2348,7 @@ module.exports = class okex3 extends Exchange {
         }
         const fee = this.safeString (params, 'fee');
         if (fee === undefined) {
-            throw new ExchangeError (this.id + " withdraw() requires a `fee` string parameter, network transaction fee must be ≥ 0. Withdrawals to OKCoin or OKEx are fee-free, please set '0'. Withdrawing to external digital asset address requires network transaction fee.");
+            throw new ArgumentsRequired (this.id + " withdraw() requires a `fee` string parameter, network transaction fee must be ≥ 0. Withdrawals to OKCoin or OKEx are fee-free, please set '0'. Withdrawing to external digital asset address requires network transaction fee.");
         }
         const request = {
             'currency': currency['id'],
@@ -2267,25 +2546,162 @@ module.exports = class okex3 extends Exchange {
         };
     }
 
-    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
+    parseMyTrade (pair, market = undefined) {
+        // check that trading symbols match in both entries
+        const first = pair[0];
+        const second = pair[1];
+        const firstMarketId = this.safeString (first, 'instrument_id');
+        const secondMarketId = this.safeString (second, 'instrument_id');
+        if (firstMarketId !== secondMarketId) {
+            throw new NotSupported (this.id + ' parseMyTrade() received unrecognized response format, differing instrument_ids in one fill, the exchange API might have changed, paste your verbose output: https://github.com/ccxt/ccxt/wiki/FAQ#what-is-required-to-get-help');
+        }
+        const marketId = firstMarketId;
+        // determine the base and quote
+        let quoteId = undefined;
+        let symbol = undefined;
+        if (marketId in this.markets_by_id) {
+            market = this.markets_by_id[marketId];
+            quoteId = market['quoteId'];
+            symbol = market['symbol'];
+        } else {
+            const parts = marketId.split ('-');
+            quoteId = this.safeString (parts, 1);
+            symbol = marketId;
+        }
+        const id = this.safeString (first, 'trade_id');
+        const price = this.safeFloat (first, 'price');
+        // determine buy/sell side and amounts
+        // get the side from either the first trade or the second trade
+        let feeCost = this.safeFloat (first, 'fee');
+        const index = (feeCost !== 0) ? 0 : 1;
+        const userTrade = this.safeValue (pair, index);
+        const otherTrade = this.safeValue (pair, 1 - index);
+        const receivedCurrencyId = this.safeString (userTrade, 'currency');
+        let side = undefined;
+        let amount = undefined;
+        let cost = undefined;
+        if (receivedCurrencyId === quoteId) {
+            side = 'sell';
+            amount = this.safeFloat (otherTrade, 'size');
+            cost = this.safeFloat (userTrade, 'size');
+        } else {
+            side = 'buy';
+            amount = this.safeFloat (userTrade, 'size');
+            cost = this.safeFloat (otherTrade, 'size');
+        }
+        feeCost = (feeCost !== 0) ? feeCost : this.safeFloat (second, 'fee');
+        const trade = this.safeValue (pair, index);
+        //
+        // simplified structures to show the underlying semantics
+        //
+        //     // market/limit sell
+        //
+        //     {
+        //         "currency":"USDT",
+        //         "fee":"-0.04647925", // ←--- fee in received quote currency
+        //         "price":"129.13", // ←------ price
+        //         "size":"30.98616393", // ←-- cost
+        //     },
+        //     {
+        //         "currency":"ETH",
+        //         "fee":"0",
+        //         "price":"129.13",
+        //         "size":"0.23996099", // ←--- amount
+        //     },
+        //
+        //     // market/limit buy
+        //
+        //     {
+        //         "currency":"ETH",
+        //         "fee":"-0.00036049", // ←--- fee in received base currency
+        //         "price":"129.16", // ←------ price
+        //         "size":"0.240322", // ←----- amount
+        //     },
+        //     {
+        //         "currency":"USDT",
+        //         "fee":"0",
+        //         "price":"129.16",
+        //         "size":"31.03998952", // ←-- cost
+        //     }
+        //
+        const timestamp = this.parse8601 (this.safeString2 (trade, 'timestamp', 'created_at'));
+        let takerOrMaker = this.safeString2 (trade, 'exec_type', 'liquidity');
+        if (takerOrMaker === 'M') {
+            takerOrMaker = 'maker';
+        } else if (takerOrMaker === 'T') {
+            takerOrMaker = 'taker';
+        }
+        let fee = undefined;
+        if (feeCost !== undefined) {
+            const feeCurrencyId = this.safeString (userTrade, 'currency');
+            const feeCurrencyCode = this.safeCurrencyCode (feeCurrencyId);
+            fee = {
+                // fee is either a positive number (invitation rebate)
+                // or a negative number (transaction fee deduction)
+                // therefore we need to invert the fee
+                // more about it https://github.com/ccxt/ccxt/issues/5909
+                'cost': -feeCost,
+                'currency': feeCurrencyCode,
+            };
+        }
+        const orderId = this.safeString (trade, 'order_id');
+        return {
+            'info': pair,
+            'timestamp': timestamp,
+            'datetime': this.iso8601 (timestamp),
+            'symbol': symbol,
+            'id': id,
+            'order': orderId,
+            'type': undefined,
+            'takerOrMaker': takerOrMaker,
+            'side': side,
+            'price': price,
+            'amount': amount,
+            'cost': cost,
+            'fee': fee,
+        };
+    }
+
+    parseMyTrades (trades, market = undefined, since = undefined, limit = undefined, params = {}) {
+        const grouped = this.groupBy (trades, 'trade_id');
+        const tradeIds = Object.keys (grouped);
+        const result = [];
+        for (let i = 0; i < tradeIds.length; i++) {
+            const tradeId = tradeIds[i];
+            const pair = grouped[tradeId];
+            // make sure it has exactly 2 trades, no more, no less
+            const numTradesInPair = pair.length;
+            if (numTradesInPair === 2) {
+                const trade = this.parseMyTrade (pair);
+                result.push (trade);
+            }
+        }
+        let symbol = undefined;
+        if (market !== undefined) {
+            symbol = market['symbol'];
+        }
+        return this.filterBySymbolSinceLimit (result, symbol, since, limit);
+    }
+
+    async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
         // okex actually returns ledger entries instead of fills here, so each fill in the order
         // is represented by two trades with opposite buy/sell sides, not one :\
         // this aspect renders the 'fills' endpoint unusable for fetchOrderTrades
         // until either OKEX fixes the API or we workaround this on our side somehow
         if (symbol === undefined) {
-            throw new ArgumentsRequired (this.id + ' fetchOrderTrades requires a symbol argument');
+            throw new ArgumentsRequired (this.id + ' fetchMyTrades requires a symbol argument');
         }
         await this.loadMarkets ();
         const market = this.market (symbol);
-        if ((limit === undefined) || (limit > 100)) {
+        if ((limit !== undefined) && (limit > 100)) {
             limit = 100;
         }
         const request = {
             'instrument_id': market['id'],
-            'order_id': id,
-            // from: '1', // return the page after the specified page number
-            // to: '1', // return the page before the specified page number
-            'limit': limit, // optional, number of results per request, default = maximum = 100
+            // 'order_id': id, // string
+            // 'after': '1', // return the page after the specified page number
+            // 'before': '1', // return the page before the specified page number
+            // 'limit': limit, // optional, number of results per request, default = maximum = 100
         };
         const defaultType = this.safeString2 (this.options, 'fetchMyTrades', 'defaultType');
         const type = this.safeString (params, 'type', defaultType);
@@ -2293,43 +2709,87 @@ module.exports = class okex3 extends Exchange {
         const method = type + 'GetFills';
         const response = await this[method] (this.extend (request, query));
         //
-        // spot trades, margin trades
-        //
         //     [
+        //         // sell
         //         {
-        //             "created_at":"2019-09-20T07:15:24.000Z",
+        //             "created_at":"2020-03-29T11:55:25.000Z",
+        //             "currency":"USDT",
+        //             "exec_type":"T",
+        //             "fee":"-0.04647925",
+        //             "instrument_id":"ETH-USDT",
+        //             "ledger_id":"10562924353",
+        //             "liquidity":"T",
+        //             "order_id":"4636470489136128",
+        //             "price":"129.13",
+        //             "product_id":"ETH-USDT",
+        //             "side":"buy",
+        //             "size":"30.98616393",
+        //             "timestamp":"2020-03-29T11:55:25.000Z",
+        //             "trade_id":"18551601"
+        //         },
+        //         {
+        //             "created_at":"2020-03-29T11:55:25.000Z",
+        //             "currency":"ETH",
         //             "exec_type":"T",
         //             "fee":"0",
         //             "instrument_id":"ETH-USDT",
-        //             "ledger_id":"7173486113",
+        //             "ledger_id":"10562924352",
         //             "liquidity":"T",
-        //             "order_id":"3553868136523776",
-        //             "price":"217.59",
+        //             "order_id":"4636470489136128",
+        //             "price":"129.13",
         //             "product_id":"ETH-USDT",
         //             "side":"sell",
-        //             "size":"0.04619899",
-        //             "timestamp":"2019-09-20T07:15:24.000Z"
-        //         }
-        //     ]
-        //
-        // futures trades, swap trades
-        //
-        //     [
+        //             "size":"0.23996099",
+        //             "timestamp":"2020-03-29T11:55:25.000Z",
+        //             "trade_id":"18551601"
+        //         },
+        //         // buy
         //         {
-        //             "trade_id":"197429674631450625",
-        //             "instrument_id":"EOS-USD-SWAP",
-        //             "order_id":"6a-7-54d663a28-0",
-        //             "price":"3.633",
-        //             "order_qty":"1.0000",
-        //             "fee":"-0.000551",
-        //             "created_at":"2019-03-21T04:41:58.0Z", // missing in swap trades
-        //             "timestamp":"2019-03-25T05:56:31.287Z", // missing in futures trades
-        //             "exec_type":"M", // whether the order is taker or maker
-        //             "side":"short", // "buy" in futures trades
+        //             "created_at":"2020-03-29T11:55:16.000Z",
+        //             "currency":"ETH",
+        //             "exec_type":"T",
+        //             "fee":"-0.00036049",
+        //             "instrument_id":"ETH-USDT",
+        //             "ledger_id":"10562922669",
+        //             "liquidity":"T",
+        //             "order_id": "4636469894136832",
+        //             "price":"129.16",
+        //             "product_id":"ETH-USDT",
+        //             "side":"buy",
+        //             "size":"0.240322",
+        //             "timestamp":"2020-03-29T11:55:16.000Z",
+        //             "trade_id":"18551600"
+        //         },
+        //         {
+        //             "created_at":"2020-03-29T11:55:16.000Z",
+        //             "currency":"USDT",
+        //             "exec_type":"T",
+        //             "fee":"0",
+        //             "instrument_id":"ETH-USDT",
+        //             "ledger_id":"10562922668",
+        //             "liquidity":"T",
+        //             "order_id":"4636469894136832",
+        //             "price":"129.16",
+        //             "product_id":"ETH-USDT",
+        //             "side":"sell",
+        //             "size":"31.03998952",
+        //             "timestamp":"2020-03-29T11:55:16.000Z",
+        //             "trade_id":"18551600"
         //         }
         //     ]
         //
-        return this.parseTrades (response, market, since, limit);
+        return this.parseMyTrades (response, market, since, limit, params);
+    }
+
+    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        const request = {
+            // 'instrument_id': market['id'],
+            'order_id': id,
+            // 'after': '1', // return the page after the specified page number
+            // 'before': '1', // return the page before the specified page number
+            // 'limit': limit, // optional, number of results per request, default = maximum = 100
+        };
+        return await this.fetchMyTrades (symbol, since, limit, this.extend (request, params));
     }
 
     async fetchLedger (code = undefined, since = undefined, limit = undefined, params = {}) {
@@ -2657,7 +3117,7 @@ module.exports = class okex3 extends Exchange {
         let request = '/api/' + api + '/' + this.version + '/';
         request += isArray ? path : this.implodeParams (path, params);
         const query = isArray ? params : this.omit (params, this.extractParams (path));
-        let url = this.urls['api'] + request;
+        let url = this.implodeParams (this.urls['api']['rest'], { 'hostname': this.hostname }) + request;
         const type = this.getPathAuthenticationType (path);
         if (type === 'public') {
             if (Object.keys (query).length) {
@@ -2695,6 +3155,12 @@ module.exports = class okex3 extends Exchange {
     }
 
     getPathAuthenticationType (path) {
+        // https://github.com/ccxt/ccxt/issues/6651
+        // a special case to handle the optionGetUnderlying interefering with
+        // other endpoints containing this keyword
+        if (path === 'underlying') {
+            return 'public';
+        }
         const auth = this.safeValue (this.options, 'auth', {});
         const key = this.findBroadlyMatchedKey (auth, path);
         return this.safeString (auth, key, 'private');
@@ -2703,7 +3169,8 @@ module.exports = class okex3 extends Exchange {
     handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
         const feedback = this.id + ' ' + body;
         if (code === 503) {
-            throw new ExchangeError (feedback);
+            // {"message":"name resolution failed"}
+            throw new ExchangeNotAvailable (feedback);
         }
         if (!response) {
             return; // fallback to default error handler
@@ -2713,10 +3180,12 @@ module.exports = class okex3 extends Exchange {
         if (message !== undefined) {
             this.throwExactlyMatchedException (this.exceptions['exact'], message, feedback);
             this.throwBroadlyMatchedException (this.exceptions['broad'], message, feedback);
-        }
-        this.throwExactlyMatchedException (this.exceptions['exact'], errorCode, feedback);
-        if (message !== undefined) {
-            throw new ExchangeError (feedback); // unknown message
+            this.throwExactlyMatchedException (this.exceptions['exact'], errorCode, feedback);
+            const nonEmptyMessage = (message !== '');
+            const nonZeroErrorCode = (errorCode !== undefined) && (errorCode !== '0');
+            if (nonZeroErrorCode || nonEmptyMessage) {
+                throw new ExchangeError (feedback); // unknown message
+            }
         }
     }
 };
diff --git a/WebServer/node_modules/ccxt/js/paymium.js b/BackendServers/node_modules/ccxt/js/paymium.js
similarity index 94%
rename from WebServer/node_modules/ccxt/js/paymium.js
rename to BackendServers/node_modules/ccxt/js/paymium.js
index 16e50e717..1b8ca0cbe 100644
--- a/WebServer/node_modules/ccxt/js/paymium.js
+++ b/BackendServers/node_modules/ccxt/js/paymium.js
@@ -41,12 +41,12 @@ module.exports = class paymium extends Exchange {
                 },
                 'private': {
                     'get': [
-                        'merchant/get_payment/{UUID}',
+                        'merchant/get_payment/{uuid}',
                         'user',
                         'user/addresses',
                         'user/addresses/{btc_address}',
                         'user/orders',
-                        'user/orders/{UUID}',
+                        'user/orders/{uuid}',
                         'user/price_alerts',
                     ],
                     'post': [
@@ -57,7 +57,7 @@ module.exports = class paymium extends Exchange {
                         'merchant/create_payment',
                     ],
                     'delete': [
-                        'user/orders/{UUID}/cancel',
+                        'user/orders/{uuid}/cancel',
                         'user/price_alerts/{id}',
                     ],
                 },
@@ -220,18 +220,24 @@ module.exports = class paymium extends Exchange {
             this.checkRequiredCredentials ();
             const nonce = this.nonce ().toString ();
             let auth = nonce + url;
+            headers = {
+                'Api-Key': this.apiKey,
+                'Api-Nonce': nonce,
+            };
             if (method === 'POST') {
                 if (Object.keys (query).length) {
                     body = this.json (query);
                     auth += body;
+                    headers['Content-Type'] = 'application/json';
+                }
+            } else {
+                if (Object.keys (query).length) {
+                    const queryString = this.urlencode (query);
+                    auth += queryString;
+                    url += '?' + queryString;
                 }
             }
-            headers = {
-                'Api-Key': this.apiKey,
-                'Api-Signature': this.hmac (this.encode (auth), this.encode (this.secret)),
-                'Api-Nonce': nonce,
-                'Content-Type': 'application/json',
-            };
+            headers['Api-Signature'] = this.hmac (this.encode (auth), this.encode (this.secret));
         }
         return { 'url': url, 'method': method, 'body': body, 'headers': headers };
     }
diff --git a/WebServer/node_modules/ccxt/js/poloniex.js b/BackendServers/node_modules/ccxt/js/poloniex.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/poloniex.js
rename to BackendServers/node_modules/ccxt/js/poloniex.js
index c6210460a..fc389cd5e 100644
--- a/WebServer/node_modules/ccxt/js/poloniex.js
+++ b/BackendServers/node_modules/ccxt/js/poloniex.js
@@ -749,6 +749,7 @@ module.exports = class poloniex extends Exchange {
         //             },
         //         ],
         //         'fee': '0.00000000',
+        //         'clientOrderId': '12345',
         //         'currencyPair': 'BTC_MANA',
         //         // ---------------------------------------------------------
         //         // the following fields are injected by createOrder
@@ -835,9 +836,11 @@ module.exports = class poloniex extends Exchange {
                 'currency': feeCurrencyCode,
             };
         }
+        const clientOrderId = this.safeString (order, 'clientOrderId');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
diff --git a/WebServer/node_modules/ccxt/js/rightbtc.js b/BackendServers/node_modules/ccxt/js/rightbtc.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/rightbtc.js
rename to BackendServers/node_modules/ccxt/js/rightbtc.js
index 2fb83c274..76a43d325 100644
--- a/WebServer/node_modules/ccxt/js/rightbtc.js
+++ b/BackendServers/node_modules/ccxt/js/rightbtc.js
@@ -542,6 +542,7 @@ module.exports = class rightbtc extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -556,6 +557,7 @@ module.exports = class rightbtc extends Exchange {
             'status': status,
             'fee': fee,
             'trades': trades,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/southxchange.js b/BackendServers/node_modules/ccxt/js/southxchange.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/southxchange.js
rename to BackendServers/node_modules/ccxt/js/southxchange.js
index d5c607765..0795385fc 100644
--- a/WebServer/node_modules/ccxt/js/southxchange.js
+++ b/BackendServers/node_modules/ccxt/js/southxchange.js
@@ -86,6 +86,8 @@ module.exports = class southxchange extends Exchange {
                 'quoteId': quoteId,
                 'active': undefined,
                 'info': market,
+                'precision': this.precision,
+                'limits': this.limits,
             });
         }
         return result;
@@ -246,6 +248,7 @@ module.exports = class southxchange extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -259,6 +262,8 @@ module.exports = class southxchange extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
         return result;
     }
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/BN/bn.js b/BackendServers/node_modules/ccxt/js/static_dependencies/BN/bn.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/BN/bn.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/BN/bn.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/crypto-js/crypto-js.js b/BackendServers/node_modules/ccxt/js/static_dependencies/crypto-js/crypto-js.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/crypto-js/crypto-js.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/crypto-js/crypto-js.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/base.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/base.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/base.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/base.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/edwards.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/edwards.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/edwards.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/edwards.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/index.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/index.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/index.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/index.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/mont.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/mont.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/mont.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/mont.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/short.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/short.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/short.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curve/short.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curves.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curves.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curves.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/curves.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/ec/index.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/ec/index.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/ec/index.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/ec/index.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/ec/key.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/ec/key.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/ec/key.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/ec/key.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/ec/signature.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/ec/signature.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/ec/signature.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/ec/signature.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/precomputed/secp256k1.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/precomputed/secp256k1.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/precomputed/secp256k1.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/precomputed/secp256k1.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/utils.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/utils.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/utils.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/elliptic/utils.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/hmac-drbg/hmac-drbg.js b/BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/hmac-drbg/hmac-drbg.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/elliptic/lib/hmac-drbg/hmac-drbg.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/elliptic/lib/hmac-drbg/hmac-drbg.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/fetch-ponyfill/fetch-node.js b/BackendServers/node_modules/ccxt/js/static_dependencies/fetch-ponyfill/fetch-node.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/fetch-ponyfill/fetch-node.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/fetch-ponyfill/fetch-node.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-fetch/index.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-fetch/index.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-fetch/index.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-fetch/index.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/NodeRSA.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/NodeRSA.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/NodeRSA.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/NodeRSA.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/errors.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/errors.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/errors.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/errors.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/index.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/index.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/index.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/index.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/reader.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/reader.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/reader.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/reader.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/types.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/types.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/types.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/ber/types.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/index.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/index.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/index.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/asn1/index.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/encryptEngines/js.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/encryptEngines/js.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/encryptEngines/js.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/encryptEngines/js.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/formats/components.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/formats/components.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/formats/components.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/formats/components.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/formats/formats.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/formats/formats.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/formats/formats.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/formats/formats.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/formats/pkcs1.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/formats/pkcs1.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/formats/pkcs1.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/formats/pkcs1.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/formats/pkcs8.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/formats/pkcs8.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/formats/pkcs8.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/formats/pkcs8.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/libs/jsbn.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/libs/jsbn.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/libs/jsbn.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/libs/jsbn.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/libs/rsa.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/libs/rsa.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/libs/rsa.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/libs/rsa.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/schemes/pkcs1.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/schemes/pkcs1.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/schemes/pkcs1.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/schemes/pkcs1.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/schemes/schemes.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/schemes/schemes.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/schemes/schemes.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/schemes/schemes.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/utils.js b/BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/utils.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/node-rsa/utils.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/node-rsa/utils.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/qs/formats.js b/BackendServers/node_modules/ccxt/js/static_dependencies/qs/formats.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/qs/formats.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/qs/formats.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/qs/index.js b/BackendServers/node_modules/ccxt/js/static_dependencies/qs/index.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/qs/index.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/qs/index.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/qs/parse.js b/BackendServers/node_modules/ccxt/js/static_dependencies/qs/parse.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/qs/parse.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/qs/parse.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/qs/stringify.js b/BackendServers/node_modules/ccxt/js/static_dependencies/qs/stringify.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/qs/stringify.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/qs/stringify.js
diff --git a/WebServer/node_modules/ccxt/js/static_dependencies/qs/utils.js b/BackendServers/node_modules/ccxt/js/static_dependencies/qs/utils.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/static_dependencies/qs/utils.js
rename to BackendServers/node_modules/ccxt/js/static_dependencies/qs/utils.js
diff --git a/WebServer/node_modules/ccxt/js/stex.js b/BackendServers/node_modules/ccxt/js/stex.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/stex.js
rename to BackendServers/node_modules/ccxt/js/stex.js
index 1625739dd..29e729957 100644
--- a/WebServer/node_modules/ccxt/js/stex.js
+++ b/BackendServers/node_modules/ccxt/js/stex.js
@@ -918,6 +918,7 @@ module.exports = class stex extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
diff --git a/WebServer/node_modules/ccxt/js/stronghold.js b/BackendServers/node_modules/ccxt/js/stronghold.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/stronghold.js
rename to BackendServers/node_modules/ccxt/js/stronghold.js
index 86e06d6ef..14d0af642 100644
--- a/WebServer/node_modules/ccxt/js/stronghold.js
+++ b/BackendServers/node_modules/ccxt/js/stronghold.js
@@ -222,6 +222,7 @@ module.exports = class stronghold extends Exchange {
                 'precision': precision,
                 'info': entry,
                 'limits': limits,
+                'active': undefined,
             };
         }
         return result;
@@ -279,6 +280,7 @@ module.exports = class stronghold extends Exchange {
                 'active': undefined,
                 'name': undefined,
                 'limits': limits,
+                'fee': undefined,
             };
         }
         return result;
@@ -576,6 +578,7 @@ module.exports = class stronghold extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'info': order,
             'symbol': symbol,
             'datetime': datetime,
@@ -591,6 +594,7 @@ module.exports = class stronghold extends Exchange {
             'status': undefined,
             'type': undefined,
             'average': undefined,
+            'fee': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/surbitcoin.js b/BackendServers/node_modules/ccxt/js/surbitcoin.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/surbitcoin.js
rename to BackendServers/node_modules/ccxt/js/surbitcoin.js
diff --git a/WebServer/node_modules/ccxt/js/test/.eslintrc.js b/BackendServers/node_modules/ccxt/js/test/.eslintrc.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/.eslintrc.js
rename to BackendServers/node_modules/ccxt/js/test/.eslintrc.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.balance.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.balance.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.balance.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.balance.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.currency.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.currency.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.currency.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.currency.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchBalance.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchBalance.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchBalance.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchBalance.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchClosedOrders.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchClosedOrders.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchClosedOrders.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchClosedOrders.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchCurrencies.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchCurrencies.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchCurrencies.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchCurrencies.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchDeposits.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchDeposits.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchDeposits.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchDeposits.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchFundingFees.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchFundingFees.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchFundingFees.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchFundingFees.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchL2OrderBook.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchL2OrderBook.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchL2OrderBook.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchL2OrderBook.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchLedger.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchLedger.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchLedger.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchLedger.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchMarkets.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchMarkets.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchMarkets.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchMarkets.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchMyTrades.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchMyTrades.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchMyTrades.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchMyTrades.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchOHLCV.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchOHLCV.js
similarity index 97%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchOHLCV.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchOHLCV.js
index 230e1cf77..a526fd72f 100644
--- a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchOHLCV.js
+++ b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchOHLCV.js
@@ -17,8 +17,6 @@ module.exports = async (exchange, symbol) => {
         'btcalpha', // issue with 404 on a documented endpoint https://travis-ci.org/ccxt/ccxt/builds/643930431#L2213
         'bitmex', // an issue with null values,to be resolved later
         'cex',
-        'okex',
-        'okcoinusd',
         'mandala',
     ]
 
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchOpenOrders.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchOpenOrders.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchOpenOrders.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchOpenOrders.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchOrderBook.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchOrderBook.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchOrderBook.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchOrderBook.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchOrderBooks.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchOrderBooks.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchOrderBooks.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchOrderBooks.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchOrders.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchOrders.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchOrders.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchOrders.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchStatus.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchStatus.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchStatus.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchStatus.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchTicker.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchTicker.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchTicker.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchTicker.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchTickers.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchTickers.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchTickers.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchTickers.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchTrades.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchTrades.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchTrades.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchTrades.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchTradingFees.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchTradingFees.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchTradingFees.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchTradingFees.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchTransactions.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchTransactions.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchTransactions.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchTransactions.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.fetchWithdrawals.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchWithdrawals.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.fetchWithdrawals.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.fetchWithdrawals.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.ledgerItem.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.ledgerItem.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.ledgerItem.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.ledgerItem.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.market.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.market.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.market.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.market.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.ohlcv.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.ohlcv.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.ohlcv.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.ohlcv.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.order.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.order.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.order.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.order.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.orderbook.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.orderbook.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.orderbook.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.orderbook.js
index 7d658434c..11d088796 100644
--- a/WebServer/node_modules/ccxt/js/test/Exchange/test.orderbook.js
+++ b/BackendServers/node_modules/ccxt/js/test/Exchange/test.orderbook.js
@@ -60,7 +60,6 @@ module.exports = (exchange, orderbook, method, symbol) => {
 
         'coinmarketcap',
         'xbtce',
-        'coinsecure',
         'upbit', // an orderbook might have a 0-price ask occasionally
 
     ].includes (exchange.id)) {
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.ticker.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.ticker.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.ticker.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.ticker.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.trade.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.trade.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.trade.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.trade.js
diff --git a/WebServer/node_modules/ccxt/js/test/Exchange/test.transaction.js b/BackendServers/node_modules/ccxt/js/test/Exchange/test.transaction.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/Exchange/test.transaction.js
rename to BackendServers/node_modules/ccxt/js/test/Exchange/test.transaction.js
diff --git a/WebServer/node_modules/ccxt/js/test/base/functions/test.crypto.js b/BackendServers/node_modules/ccxt/js/test/base/functions/test.crypto.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/base/functions/test.crypto.js
rename to BackendServers/node_modules/ccxt/js/test/base/functions/test.crypto.js
diff --git a/WebServer/node_modules/ccxt/js/test/base/functions/test.datetime.js b/BackendServers/node_modules/ccxt/js/test/base/functions/test.datetime.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/base/functions/test.datetime.js
rename to BackendServers/node_modules/ccxt/js/test/base/functions/test.datetime.js
diff --git a/WebServer/node_modules/ccxt/js/test/base/functions/test.generic.js b/BackendServers/node_modules/ccxt/js/test/base/functions/test.generic.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/base/functions/test.generic.js
rename to BackendServers/node_modules/ccxt/js/test/base/functions/test.generic.js
diff --git a/WebServer/node_modules/ccxt/js/test/base/functions/test.number.js b/BackendServers/node_modules/ccxt/js/test/base/functions/test.number.js
similarity index 97%
rename from WebServer/node_modules/ccxt/js/test/base/functions/test.number.js
rename to BackendServers/node_modules/ccxt/js/test/base/functions/test.number.js
index 9d2051582..1d5adce06 100644
--- a/WebServer/node_modules/ccxt/js/test/base/functions/test.number.js
+++ b/BackendServers/node_modules/ccxt/js/test/base/functions/test.number.js
@@ -25,6 +25,8 @@ assert (toWei ('0.001', 18) === '1000000000000000');
 assert (toWei (0.1, 18) === '100000000000000000');
 assert (toWei (0.01, 18) === '10000000000000000');
 assert (toWei (0.001, 18) === '1000000000000000');
+assert (toWei ('0.3323340739', 18) === '332334073900000000');
+assert (toWei (0.3323340739, 18) === '332334073900000000');
 
 // let us test that we get the inverse for all these test
 assert (fromWei ('1000000000000000000', 18) === 1.0);
@@ -43,6 +45,8 @@ assert (fromWei ('1000000000000000', 18) === 0.001);
 assert (fromWei (100000000000000000, 18) === 0.1);
 assert (fromWei (10000000000000000, 18) === 0.01);
 assert (fromWei (1000000000000000, 18) === 0.001);
+assert (fromWei ('332334073900000000', 18) === 0.3323340739);
+assert (fromWei (332334073900000000, 18) === 0.3323340739);
 
 // ----------------------------------------------------------------------------
 // numberToString
@@ -58,6 +62,7 @@ assert (numberToString (7.9e27) === '7900000000000000000000000000');
 assert (numberToString (-12.345) === '-12.345');
 assert (numberToString (12.345) === '12.345');
 assert (numberToString (0) === '0');
+assert (numberToString (7.35946e21) === '7359460000000000000000');
 // the following line breaks the test
 // see https://github.com/ccxt/ccxt/issues/5744
 // assert (numberToString (0.00000001) === '0.00000001');
@@ -214,6 +219,9 @@ assert (decimalToPrecision ('-44', ROUND, 4.4, TICK_SIZE) === '-44');
 assert (decimalToPrecision ('44.00000001', ROUND, 4.4, TICK_SIZE) === '44');
 assert (decimalToPrecision ('-44.00000001', ROUND, 4.4, TICK_SIZE) === '-44');
 
+// https://github.com/ccxt/ccxt/issues/6731
+assert (decimalToPrecision ('20', TRUNCATE, 0.00000001, TICK_SIZE) === '20');
+
 // ----------------------------------------------------------------------------
 // testDecimalToPrecisionNegativeNumbers
 
diff --git a/WebServer/node_modules/ccxt/js/test/base/functions/test.time.js b/BackendServers/node_modules/ccxt/js/test/base/functions/test.time.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/base/functions/test.time.js
rename to BackendServers/node_modules/ccxt/js/test/base/functions/test.time.js
diff --git a/WebServer/node_modules/ccxt/js/test/base/functions/test.type.js b/BackendServers/node_modules/ccxt/js/test/base/functions/test.type.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/base/functions/test.type.js
rename to BackendServers/node_modules/ccxt/js/test/base/functions/test.type.js
diff --git a/WebServer/node_modules/ccxt/js/test/base/test.base.js b/BackendServers/node_modules/ccxt/js/test/base/test.base.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/base/test.base.js
rename to BackendServers/node_modules/ccxt/js/test/base/test.base.js
diff --git a/WebServer/node_modules/ccxt/js/test/errors/test.InsufficientFunds.js b/BackendServers/node_modules/ccxt/js/test/errors/test.InsufficientFunds.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/errors/test.InsufficientFunds.js
rename to BackendServers/node_modules/ccxt/js/test/errors/test.InsufficientFunds.js
diff --git a/WebServer/node_modules/ccxt/js/test/errors/test.InvalidNonce.js b/BackendServers/node_modules/ccxt/js/test/errors/test.InvalidNonce.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/errors/test.InvalidNonce.js
rename to BackendServers/node_modules/ccxt/js/test/errors/test.InvalidNonce.js
diff --git a/WebServer/node_modules/ccxt/js/test/errors/test.InvalidOrder.js b/BackendServers/node_modules/ccxt/js/test/errors/test.InvalidOrder.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/errors/test.InvalidOrder.js
rename to BackendServers/node_modules/ccxt/js/test/errors/test.InvalidOrder.js
diff --git a/WebServer/node_modules/ccxt/js/test/errors/test.OrderNotFound.js b/BackendServers/node_modules/ccxt/js/test/errors/test.OrderNotFound.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/errors/test.OrderNotFound.js
rename to BackendServers/node_modules/ccxt/js/test/errors/test.OrderNotFound.js
diff --git a/WebServer/node_modules/ccxt/js/test/test.js b/BackendServers/node_modules/ccxt/js/test/test.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/test/test.js
rename to BackendServers/node_modules/ccxt/js/test/test.js
index 322deed58..665e1a228 100644
--- a/WebServer/node_modules/ccxt/js/test/test.js
+++ b/BackendServers/node_modules/ccxt/js/test/test.js
@@ -370,12 +370,9 @@ let tryAllProxies = async function (exchange, proxies) {
 ;(async function test () {
 
     if (exchangeSymbol) {
-
         await loadExchange (exchange)
         await testSymbol (exchange, exchangeSymbol)
-
     } else {
-
         await tryAllProxies (exchange, proxies)
     }
 
diff --git a/WebServer/node_modules/ccxt/js/test/test.timeout_hang.js b/BackendServers/node_modules/ccxt/js/test/test.timeout_hang.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/test/test.timeout_hang.js
rename to BackendServers/node_modules/ccxt/js/test/test.timeout_hang.js
diff --git a/WebServer/node_modules/ccxt/js/theocean.js b/BackendServers/node_modules/ccxt/js/theocean.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/theocean.js
rename to BackendServers/node_modules/ccxt/js/theocean.js
index 91153211a..502aaedd5 100644
--- a/WebServer/node_modules/ccxt/js/theocean.js
+++ b/BackendServers/node_modules/ccxt/js/theocean.js
@@ -180,6 +180,9 @@ module.exports = class theocean extends Exchange {
     }
 
     async fetchOHLCV (symbol, timeframe = '5m', since = undefined, limit = undefined, params = {}) {
+        if (since === undefined) {
+            throw new ArgumentsRequired (this.id + ' fetchOHLCV requires a since argument');
+        }
         await this.loadMarkets ();
         const market = this.market (symbol);
         const request = {
@@ -187,9 +190,6 @@ module.exports = class theocean extends Exchange {
             'quoteTokenAddress': market['quoteId'],
             'interval': this.timeframes[timeframe],
         };
-        if (since === undefined) {
-            throw new ExchangeError (this.id + ' fetchOHLCV requires a since argument');
-        }
         since = parseInt (since);
         request['startTime'] = since;
         const response = await this.publicGetCandlesticks (this.extend (request, params));
@@ -706,6 +706,7 @@ module.exports = class theocean extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -720,6 +721,7 @@ module.exports = class theocean extends Exchange {
             'status': status,
             'fee': fee,
             'trades': trades,
+            'average': undefined,
         };
         return result;
     }
diff --git a/WebServer/node_modules/ccxt/js/therock.js b/BackendServers/node_modules/ccxt/js/therock.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/therock.js
rename to BackendServers/node_modules/ccxt/js/therock.js
index 285471d79..254563067 100644
--- a/WebServer/node_modules/ccxt/js/therock.js
+++ b/BackendServers/node_modules/ccxt/js/therock.js
@@ -956,6 +956,7 @@ module.exports = class therock extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'info': order,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
diff --git a/WebServer/node_modules/ccxt/js/tidebit.js b/BackendServers/node_modules/ccxt/js/tidebit.js
similarity index 85%
rename from WebServer/node_modules/ccxt/js/tidebit.js
rename to BackendServers/node_modules/ccxt/js/tidebit.js
index da5679ffe..7f3fe2605 100644
--- a/WebServer/node_modules/ccxt/js/tidebit.js
+++ b/BackendServers/node_modules/ccxt/js/tidebit.js
@@ -3,7 +3,7 @@
 //  ---------------------------------------------------------------------------
 
 const Exchange = require ('./base/Exchange');
-const { ExchangeError, InsufficientFunds, OrderNotFound } = require ('./base/errors');
+const { ExchangeError, InsufficientFunds, OrderNotFound, ArgumentsRequired } = require ('./base/errors');
 
 //  ---------------------------------------------------------------------------
 
@@ -157,6 +157,9 @@ module.exports = class tidebit extends Exchange {
                 'baseId': baseId,
                 'quoteId': quoteId,
                 'info': market,
+                'active': undefined,
+                'precision': this.precision,
+                'limits': this.limits,
             });
         }
         return result;
@@ -342,6 +345,41 @@ module.exports = class tidebit extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "id": 7,                              // 唯一的 Order ID
+        //         "side": "sell",                       // Buy/Sell 代表买单/卖单
+        //         "price": "3100.0",                    // 出价
+        //         "avg_price": "3101.2",                // 平均成交价
+        //         "state": "wait",                      // 订单的当前状态 [wait,done,cancel]
+        //                                               //   wait   表明订单正在市场上挂单
+        //                                               //          是一个active order
+        //                                               //          此时订单可能部分成交或者尚未成交
+        //                                               //   done   代表订单已经完全成交
+        //                                               //   cancel 代表订单已经被撤销
+        //         "market": "btccny",                   // 订单参与的交易市场
+        //         "created_at": "2014-04-18T02:02:33Z", // 下单时间 ISO8601格式
+        //         "volume": "100.0",                    // 购买/卖出数量
+        //         "remaining_volume": "89.8",           // 还未成交的数量 remaining_volume 总是小于等于 volume
+        //                                               //   在订单完全成交时变成 0
+        //         "executed_volume": "10.2",            // 已成交的数量
+        //                                               //   volume = remaining_volume + executed_volume
+        //         "trades_count": 1,                    // 订单的成交数 整数值
+        //                                               //   未成交的订单为 0 有一笔成交的订单为 1
+        //                                               //   通过该字段可以判断订单是否处于部分成交状态
+        //         "trades": [                           // 订单的详细成交记录 参见Trade
+        //                                               //   注意: 只有某些返回详细订单数据的 API 才会包含 Trade 数据
+        //             {
+        //                 "id": 2,
+        //                 "price": "3100.0",
+        //                 "volume": "10.2",
+        //                 "market": "btccny",
+        //                 "created_at": "2014-04-18T02:04:49Z",
+        //                 "side": "sell"
+        //             }
+        //         ]
+        //     }
+        //
         let symbol = undefined;
         if (market !== undefined) {
             symbol = market['symbol'];
@@ -366,6 +404,7 @@ module.exports = class tidebit extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -381,6 +420,7 @@ module.exports = class tidebit extends Exchange {
             'trades': undefined,
             'fee': undefined,
             'info': order,
+            'average': undefined,
         };
     }
 
@@ -420,7 +460,7 @@ module.exports = class tidebit extends Exchange {
         const currency = this.currency (code);
         const id = this.safeString (params, 'id');
         if (id === undefined) {
-            throw new ExchangeError (this.id + ' withdraw() requires an extra `id` param (withdraw account id according to withdraws/bind_account_list endpoint');
+            throw new ArgumentsRequired (this.id + ' withdraw() requires an extra `id` param (withdraw account id according to withdraws/bind_account_list endpoint');
         }
         const request = {
             'id': id,
diff --git a/WebServer/node_modules/ccxt/js/tidex.js b/BackendServers/node_modules/ccxt/js/tidex.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/tidex.js
rename to BackendServers/node_modules/ccxt/js/tidex.js
index 7bb23ee02..efe071e01 100644
--- a/WebServer/node_modules/ccxt/js/tidex.js
+++ b/BackendServers/node_modules/ccxt/js/tidex.js
@@ -528,9 +528,13 @@ module.exports = class tidex extends Exchange {
             'filled': filled,
             'fee': undefined,
             // 'trades': this.parseTrades (order['trades'], market),
+            'info': response,
+            'clientOrderId': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
         this.orders[id] = order;
-        return this.extend ({ 'info': response }, order);
+        return order;
     }
 
     async cancelOrder (id, symbol = undefined, params = {}) {
@@ -606,6 +610,9 @@ module.exports = class tidex extends Exchange {
             'filled': filled,
             'status': status,
             'fee': fee,
+            'clientOrderId': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/timex.js b/BackendServers/node_modules/ccxt/js/timex.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/timex.js
rename to BackendServers/node_modules/ccxt/js/timex.js
index e20edc6aa..1c381f7cb 100644
--- a/WebServer/node_modules/ccxt/js/timex.js
+++ b/BackendServers/node_modules/ccxt/js/timex.js
@@ -1175,9 +1175,11 @@ module.exports = class timex extends Exchange {
                 lastTradeTimestamp = trades[numTrades - 1]['timestamp'];
             }
         }
+        const clientOrderId = this.safeString (order, 'clientOrderId');
         return {
             'info': order,
             'id': id,
+            'clientOrderId': clientOrderId,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
diff --git a/WebServer/node_modules/ccxt/js/topq.js b/BackendServers/node_modules/ccxt/js/topq.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/topq.js
rename to BackendServers/node_modules/ccxt/js/topq.js
diff --git a/WebServer/node_modules/ccxt/js/upbit.js b/BackendServers/node_modules/ccxt/js/upbit.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/upbit.js
rename to BackendServers/node_modules/ccxt/js/upbit.js
index 449df2cbb..8018766c0 100644
--- a/WebServer/node_modules/ccxt/js/upbit.js
+++ b/BackendServers/node_modules/ccxt/js/upbit.js
@@ -16,6 +16,7 @@ module.exports = class upbit extends Exchange {
             'version': 'v1',
             'rateLimit': 1000,
             'certified': true,
+            'pro': true,
             // new metainfo interface
             'has': {
                 'CORS': true,
@@ -50,7 +51,10 @@ module.exports = class upbit extends Exchange {
             'hostname': 'api.upbit.com',
             'urls': {
                 'logo': 'https://user-images.githubusercontent.com/1294454/49245610-eeaabe00-f423-11e8-9cba-4b0aed794799.jpg',
-                'api': 'https://{hostname}',
+                'api': {
+                    'public': 'https://{hostname}',
+                    'private': 'https://{hostname}',
+                },
                 'www': 'https://upbit.com',
                 'doc': 'https://docs.upbit.com/docs/%EC%9A%94%EC%B2%AD-%EC%88%98-%EC%A0%9C%ED%95%9C',
                 'fees': 'https://upbit.com/service_center/guide',
@@ -539,7 +543,7 @@ module.exports = class upbit extends Exchange {
         //                     timestamp:  1542883543813  }
         //
         const timestamp = this.safeInteger (ticker, 'trade_timestamp');
-        const symbol = this.getSymbolFromMarketId (this.safeString (ticker, 'market'), market);
+        const symbol = this.getSymbolFromMarketId (this.safeString2 (ticker, 'market', 'code'), market);
         const previous = this.safeFloat (ticker, 'prev_closing_price');
         const last = this.safeFloat (ticker, 'trade_price');
         const change = this.safeFloat (ticker, 'signed_change_price');
@@ -680,8 +684,8 @@ module.exports = class upbit extends Exchange {
                 }
             }
         }
-        const marketId = this.safeString (trade, 'market');
-        market = this.safeValue (this.markets_by_id, marketId);
+        const marketId = this.safeString2 (trade, 'market', 'code');
+        market = this.safeValue (this.markets_by_id, marketId, market);
         let fee = undefined;
         let feeCurrency = undefined;
         let symbol = undefined;
@@ -1197,6 +1201,7 @@ module.exports = class upbit extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': lastTradeTimestamp,
@@ -1319,9 +1324,11 @@ module.exports = class upbit extends Exchange {
     }
 
     parseDepositAddresses (addresses) {
-        const result = [];
+        const result = {};
         for (let i = 0; i < addresses.length; i++) {
-            result.push (this.parseDepositAddress (addresses[i]));
+            const address = this.parseDepositAddress (addresses[i]);
+            const code = address['currency'];
+            result[code] = address;
         }
         return result;
     }
@@ -1459,7 +1466,7 @@ module.exports = class upbit extends Exchange {
     }
 
     sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = this.implodeParams (this.urls['api'], {
+        let url = this.implodeParams (this.urls['api'][api], {
             'hostname': this.hostname,
         });
         url += '/' + this.version + '/' + this.implodeParams (path, params);
diff --git a/WebServer/node_modules/ccxt/js/vaultoro.js b/BackendServers/node_modules/ccxt/js/vaultoro.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/vaultoro.js
rename to BackendServers/node_modules/ccxt/js/vaultoro.js
index 4d57970dd..abc1ba387 100644
--- a/WebServer/node_modules/ccxt/js/vaultoro.js
+++ b/BackendServers/node_modules/ccxt/js/vaultoro.js
@@ -83,6 +83,9 @@ module.exports = class vaultoro extends Exchange {
             'baseId': baseId,
             'quoteId': quoteId,
             'info': market,
+            'active': undefined,
+            'precision': this.precision,
+            'limits': this.limits,
         });
         return result;
     }
diff --git a/WebServer/node_modules/ccxt/js/vbtc.js b/BackendServers/node_modules/ccxt/js/vbtc.js
similarity index 100%
rename from WebServer/node_modules/ccxt/js/vbtc.js
rename to BackendServers/node_modules/ccxt/js/vbtc.js
diff --git a/WebServer/node_modules/ccxt/js/whitebit.js b/BackendServers/node_modules/ccxt/js/whitebit.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/whitebit.js
rename to BackendServers/node_modules/ccxt/js/whitebit.js
index 8b1be0445..608f8e52a 100644
--- a/WebServer/node_modules/ccxt/js/whitebit.js
+++ b/BackendServers/node_modules/ccxt/js/whitebit.js
@@ -585,7 +585,7 @@ module.exports = class whitebit extends Exchange {
     }
 
     async fetchStatus (params = {}) {
-        const response = await this.webGetV1Healthcheck ();
+        const response = await this.webGetV1Healthcheck (params);
         const status = this.safeInteger (response, 'status');
         let formattedStatus = 'ok';
         if (status === 503) {
diff --git a/WebServer/node_modules/ccxt/js/xbtce.js b/BackendServers/node_modules/ccxt/js/xbtce.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/xbtce.js
rename to BackendServers/node_modules/ccxt/js/xbtce.js
index 250a26592..1529dc94d 100644
--- a/WebServer/node_modules/ccxt/js/xbtce.js
+++ b/BackendServers/node_modules/ccxt/js/xbtce.js
@@ -129,6 +129,9 @@ module.exports = class xbtce extends Exchange {
                 'baseId': baseId,
                 'quoteId': quoteId,
                 'info': market,
+                'active': undefined,
+                'precision': this.precision,
+                'limits': this.limits,
             });
         }
         return result;
diff --git a/WebServer/node_modules/ccxt/js/yobit.js b/BackendServers/node_modules/ccxt/js/yobit.js
similarity index 99%
rename from WebServer/node_modules/ccxt/js/yobit.js
rename to BackendServers/node_modules/ccxt/js/yobit.js
index 95ed4f6c6..58e452423 100644
--- a/WebServer/node_modules/ccxt/js/yobit.js
+++ b/BackendServers/node_modules/ccxt/js/yobit.js
@@ -542,9 +542,13 @@ module.exports = class yobit extends Exchange {
             'filled': filled,
             'fee': undefined,
             // 'trades': this.parseTrades (order['trades'], market),
+            'info': response,
+            'clientOrderId': undefined,
+            'average': undefined,
+            'trades': undefined,
         };
         this.orders[id] = order;
-        return this.extend ({ 'info': response }, order);
+        return order;
     }
 
     async cancelOrder (id, symbol = undefined, params = {}) {
@@ -607,6 +611,7 @@ module.exports = class yobit extends Exchange {
         const result = {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'symbol': symbol,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
@@ -620,6 +625,8 @@ module.exports = class yobit extends Exchange {
             'filled': filled,
             'status': status,
             'fee': fee,
+            'average': undefined,
+            'trades': undefined,
         };
         return result;
     }
diff --git a/WebServer/node_modules/ccxt/js/zaif.js b/BackendServers/node_modules/ccxt/js/zaif.js
similarity index 97%
rename from WebServer/node_modules/ccxt/js/zaif.js
rename to BackendServers/node_modules/ccxt/js/zaif.js
index 9c43065cf..29495f977 100644
--- a/WebServer/node_modules/ccxt/js/zaif.js
+++ b/BackendServers/node_modules/ccxt/js/zaif.js
@@ -324,6 +324,16 @@ module.exports = class zaif extends Exchange {
     }
 
     parseOrder (order, market = undefined) {
+        //
+        //     {
+        //         "currency_pair": "btc_jpy",
+        //         "action": "ask",
+        //         "amount": 0.03,
+        //         "price": 56000,
+        //         "timestamp": 1402021125,
+        //         "comment" : "demo"
+        //     }
+        //
         let side = this.safeString (order, 'action');
         side = (side === 'bid') ? 'buy' : 'sell';
         const timestamp = this.safeTimestamp (order, 'timestamp');
@@ -348,6 +358,7 @@ module.exports = class zaif extends Exchange {
         }
         return {
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -362,6 +373,8 @@ module.exports = class zaif extends Exchange {
             'remaining': undefined,
             'trades': undefined,
             'fee': undefined,
+            'info': undefined,
+            'average': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/js/zb.js b/BackendServers/node_modules/ccxt/js/zb.js
similarity index 98%
rename from WebServer/node_modules/ccxt/js/zb.js
rename to BackendServers/node_modules/ccxt/js/zb.js
index f267337a8..f3cc69084 100644
--- a/WebServer/node_modules/ccxt/js/zb.js
+++ b/BackendServers/node_modules/ccxt/js/zb.js
@@ -453,7 +453,7 @@ module.exports = class zb extends Exchange {
 
     async fetchOrders (symbol = undefined, since = undefined, limit = 50, params = {}) {
         if (symbol === undefined) {
-            throw new ExchangeError (this.id + 'fetchOrders requires a symbol parameter');
+            throw new ArgumentsRequired (this.id + 'fetchOrders requires a symbol argument');
         }
         await this.loadMarkets ();
         const market = this.market (symbol);
@@ -481,7 +481,7 @@ module.exports = class zb extends Exchange {
 
     async fetchOpenOrders (symbol = undefined, since = undefined, limit = 10, params = {}) {
         if (symbol === undefined) {
-            throw new ExchangeError (this.id + 'fetchOpenOrders requires a symbol parameter');
+            throw new ArgumentsRequired (this.id + 'fetchOpenOrders requires a symbol argument');
         }
         await this.loadMarkets ();
         const market = this.market (symbol);
@@ -559,6 +559,7 @@ module.exports = class zb extends Exchange {
         return {
             'info': order,
             'id': id,
+            'clientOrderId': undefined,
             'timestamp': timestamp,
             'datetime': this.iso8601 (timestamp),
             'lastTradeTimestamp': undefined,
@@ -573,6 +574,7 @@ module.exports = class zb extends Exchange {
             'remaining': remaining,
             'status': status,
             'fee': undefined,
+            'trades': undefined,
         };
     }
 
diff --git a/WebServer/node_modules/ccxt/package.json b/BackendServers/node_modules/ccxt/package.json
similarity index 92%
rename from WebServer/node_modules/ccxt/package.json
rename to BackendServers/node_modules/ccxt/package.json
index 9e6336549..81b128a19 100644
--- a/WebServer/node_modules/ccxt/package.json
+++ b/BackendServers/node_modules/ccxt/package.json
@@ -1,28 +1,27 @@
 {
-  "_from": "ccxt@1.23.67",
-  "_id": "ccxt@1.23.67",
+  "_from": "ccxt@^1.23.67",
+  "_id": "ccxt@1.26.45",
   "_inBundle": false,
-  "_integrity": "sha512-4GE4iTvW1lO8hDsuKYGr7+Gvt77aMx3NK4qSzIOLbDTsfrfL8PbPty7XTHnCOZUq1HaRjTY5IHhozZLccBsNWA==",
+  "_integrity": "sha512-/gmeUKUlNsroBR2/W7A3knZzCvPYzztb7VRwtWyqze7U/LZiXsXo1GBSC2goQIe2xL8FlAyk7ARjZrPdSWtExA==",
   "_location": "/ccxt",
   "_phantomChildren": {},
   "_requested": {
-    "type": "version",
+    "type": "range",
     "registry": true,
-    "raw": "ccxt@1.23.67",
+    "raw": "ccxt@^1.23.67",
     "name": "ccxt",
     "escapedName": "ccxt",
-    "rawSpec": "1.23.67",
+    "rawSpec": "^1.23.67",
     "saveSpec": null,
-    "fetchSpec": "1.23.67"
+    "fetchSpec": "^1.23.67"
   },
   "_requiredBy": [
-    "#USER",
     "/"
   ],
-  "_resolved": "https://registry.npmjs.org/ccxt/-/ccxt-1.23.67.tgz",
-  "_shasum": "f4970de79d9dd420279a30005ced11bfe0b3f397",
-  "_spec": "ccxt@1.23.67",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_resolved": "https://registry.npmjs.org/ccxt/-/ccxt-1.26.45.tgz",
+  "_shasum": "7fb42a12592ce4b865b98784dce9847b25a8602e",
+  "_spec": "ccxt@^1.23.67",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers",
   "author": {
     "name": "Igor Kroitor",
     "email": "igor.kroitor@gmail.com",
@@ -47,11 +46,11 @@
     "browserify": "14.5.0",
     "chai": "4.1.2",
     "chai-as-promised": "7.1.1",
-    "eslint": "^4.19.1",
-    "eslint-config-airbnb-base": "12.1.0",
-    "eslint-plugin-import": "2.16.0",
+    "eslint": "^6.8.0",
+    "eslint-config-airbnb-base": "14.1.0",
+    "eslint-plugin-import": "2.20.1",
     "mocha": "5.2.0",
-    "ololog": "1.1.121"
+    "ololog": "1.1.155"
   },
   "engines": {
     "node": ">=7.6.0"
@@ -65,6 +64,8 @@
     "altcoins",
     "api",
     "arbitrage",
+    "real-time",
+    "realtime",
     "backtest",
     "backtesting",
     "bitcoin",
@@ -125,6 +126,11 @@
     "trading",
     "usd",
     "volume",
+    "websocket",
+    "websockets",
+    "web socket",
+    "web sockets",
+    "ws",
     "xbt",
     "xrp",
     "zec",
@@ -479,7 +485,12 @@
     "topliq.com",
     "TOP.Q",
     "hollaex.com",
-    "HollaEx"
+    "HollaEx",
+    "bybit.com",
+    "Bybit",
+    "aofex.com",
+    "AOFEX",
+    "byte-trade.com"
   ],
   "license": "MIT",
   "main": "./ccxt.js",
@@ -492,7 +503,7 @@
     "browserify": "browserify ./ccxt.browser.js > ./dist/ccxt.browser.js",
     "build": "npm run build-without-docs && npm run pandoc-all && npm run update-badges",
     "build-without-docs": "npm run export-exchanges && npm run vss && npm run check-js-syntax && npm run browserify && npm run transpile && npm run qa",
-    "check-js-syntax": "pwd && eslint --version && eslint 'js/*.js'",
+    "check-js-syntax": "pwd && eslint --version && eslint \"js/*.js\"",
     "check-php-syntax": "php -f php/test/syntax.php",
     "check-python-syntax": "cd python && tox -e qa && cd ..",
     "check-syntax": "npm run transpile && npm run check-js-syntax && npm run check-python-syntax && npm run check-php-syntax",
@@ -527,5 +538,5 @@
   },
   "types": "./ccxt.d.ts",
   "unpkg": "dist/ccxt.browser.js",
-  "version": "1.23.67"
+  "version": "1.26.45"
 }
diff --git a/WebServer/node_modules/ccxt/postinstall.js b/BackendServers/node_modules/ccxt/postinstall.js
similarity index 100%
rename from WebServer/node_modules/ccxt/postinstall.js
rename to BackendServers/node_modules/ccxt/postinstall.js
diff --git a/WebServer/node_modules/concat-map/example/map.js b/BackendServers/node_modules/concat-map/example/map.js
similarity index 100%
rename from WebServer/node_modules/concat-map/example/map.js
rename to BackendServers/node_modules/concat-map/example/map.js
diff --git a/WebServer/node_modules/concat-map/index.js b/BackendServers/node_modules/concat-map/index.js
similarity index 100%
rename from WebServer/node_modules/concat-map/index.js
rename to BackendServers/node_modules/concat-map/index.js
diff --git a/WebServer/node_modules/concat-map/package.json b/BackendServers/node_modules/concat-map/package.json
similarity index 86%
rename from WebServer/node_modules/concat-map/package.json
rename to BackendServers/node_modules/concat-map/package.json
index 9222b2a11..b930d6c7d 100644
--- a/WebServer/node_modules/concat-map/package.json
+++ b/BackendServers/node_modules/concat-map/package.json
@@ -1,10 +1,4 @@
 {
-  "_args": [
-    [
-      "concat-map@0.0.1",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
   "_from": "concat-map@0.0.1",
   "_id": "concat-map@0.0.1",
   "_inBundle": false,
@@ -25,8 +19,9 @@
     "/brace-expansion"
   ],
   "_resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-  "_spec": "0.0.1",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_shasum": "d8a96bd77fd68df7793a73036a3ba0d5405d477b",
+  "_spec": "concat-map@0.0.1",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers\\node_modules\\brace-expansion",
   "author": {
     "name": "James Halliday",
     "email": "mail@substack.net",
@@ -35,6 +30,8 @@
   "bugs": {
     "url": "https://github.com/substack/node-concat-map/issues"
   },
+  "bundleDependencies": false,
+  "deprecated": false,
   "description": "concatenative mapdashery",
   "devDependencies": {
     "tape": "~2.4.0"
diff --git a/WebServer/node_modules/concat-map/test/map.js b/BackendServers/node_modules/concat-map/test/map.js
similarity index 100%
rename from WebServer/node_modules/concat-map/test/map.js
rename to BackendServers/node_modules/concat-map/test/map.js
diff --git a/WebServer/node_modules/fs.realpath/index.js b/BackendServers/node_modules/fs.realpath/index.js
similarity index 100%
rename from WebServer/node_modules/fs.realpath/index.js
rename to BackendServers/node_modules/fs.realpath/index.js
diff --git a/WebServer/node_modules/fs.realpath/old.js b/BackendServers/node_modules/fs.realpath/old.js
similarity index 100%
rename from WebServer/node_modules/fs.realpath/old.js
rename to BackendServers/node_modules/fs.realpath/old.js
diff --git a/WebServer/node_modules/fs.realpath/package.json b/BackendServers/node_modules/fs.realpath/package.json
similarity index 75%
rename from WebServer/node_modules/fs.realpath/package.json
rename to BackendServers/node_modules/fs.realpath/package.json
index 4c7483a43..b9829d252 100644
--- a/WebServer/node_modules/fs.realpath/package.json
+++ b/BackendServers/node_modules/fs.realpath/package.json
@@ -1,32 +1,27 @@
 {
-  "_args": [
-    [
-      "fs.realpath@1.0.0",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "fs.realpath@1.0.0",
+  "_from": "fs.realpath@^1.0.0",
   "_id": "fs.realpath@1.0.0",
   "_inBundle": false,
   "_integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
   "_location": "/fs.realpath",
   "_phantomChildren": {},
   "_requested": {
-    "type": "version",
+    "type": "range",
     "registry": true,
-    "raw": "fs.realpath@1.0.0",
+    "raw": "fs.realpath@^1.0.0",
     "name": "fs.realpath",
     "escapedName": "fs.realpath",
-    "rawSpec": "1.0.0",
+    "rawSpec": "^1.0.0",
     "saveSpec": null,
-    "fetchSpec": "1.0.0"
+    "fetchSpec": "^1.0.0"
   },
   "_requiredBy": [
     "/glob"
   ],
   "_resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
-  "_spec": "1.0.0",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_shasum": "1504ad2523158caa40db4a2787cb01411994ea4f",
+  "_spec": "fs.realpath@^1.0.0",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers\\node_modules\\glob",
   "author": {
     "name": "Isaac Z. Schlueter",
     "email": "i@izs.me",
@@ -35,7 +30,9 @@
   "bugs": {
     "url": "https://github.com/isaacs/fs.realpath/issues"
   },
+  "bundleDependencies": false,
   "dependencies": {},
+  "deprecated": false,
   "description": "Use node's fs.realpath, but fall back to the JS implementation if the native one fails",
   "devDependencies": {},
   "files": [
diff --git a/WebServer/node_modules/glob/common.js b/BackendServers/node_modules/glob/common.js
similarity index 100%
rename from WebServer/node_modules/glob/common.js
rename to BackendServers/node_modules/glob/common.js
diff --git a/WebServer/node_modules/glob/glob.js b/BackendServers/node_modules/glob/glob.js
similarity index 100%
rename from WebServer/node_modules/glob/glob.js
rename to BackendServers/node_modules/glob/glob.js
diff --git a/WebServer/node_modules/glob/package.json b/BackendServers/node_modules/glob/package.json
similarity index 95%
rename from WebServer/node_modules/glob/package.json
rename to BackendServers/node_modules/glob/package.json
index 30ab73687..e3fc24976 100644
--- a/WebServer/node_modules/glob/package.json
+++ b/BackendServers/node_modules/glob/package.json
@@ -21,7 +21,7 @@
   "_resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
   "_shasum": "141f33b81a7c2492e125594307480c46679278a6",
   "_spec": "glob@^7.1.3",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer\\node_modules\\rimraf",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers\\node_modules\\rimraf",
   "author": {
     "name": "Isaac Z. Schlueter",
     "email": "i@izs.me",
diff --git a/WebServer/node_modules/glob/sync.js b/BackendServers/node_modules/glob/sync.js
similarity index 100%
rename from WebServer/node_modules/glob/sync.js
rename to BackendServers/node_modules/glob/sync.js
diff --git a/WebServer/node_modules/inflight/inflight.js b/BackendServers/node_modules/inflight/inflight.js
similarity index 100%
rename from WebServer/node_modules/inflight/inflight.js
rename to BackendServers/node_modules/inflight/inflight.js
diff --git a/WebServer/node_modules/inflight/package.json b/BackendServers/node_modules/inflight/package.json
similarity index 74%
rename from WebServer/node_modules/inflight/package.json
rename to BackendServers/node_modules/inflight/package.json
index fec316f50..2bb39a30e 100644
--- a/WebServer/node_modules/inflight/package.json
+++ b/BackendServers/node_modules/inflight/package.json
@@ -1,32 +1,27 @@
 {
-  "_args": [
-    [
-      "inflight@1.0.6",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "inflight@1.0.6",
+  "_from": "inflight@^1.0.4",
   "_id": "inflight@1.0.6",
   "_inBundle": false,
   "_integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
   "_location": "/inflight",
   "_phantomChildren": {},
   "_requested": {
-    "type": "version",
+    "type": "range",
     "registry": true,
-    "raw": "inflight@1.0.6",
+    "raw": "inflight@^1.0.4",
     "name": "inflight",
     "escapedName": "inflight",
-    "rawSpec": "1.0.6",
+    "rawSpec": "^1.0.4",
     "saveSpec": null,
-    "fetchSpec": "1.0.6"
+    "fetchSpec": "^1.0.4"
   },
   "_requiredBy": [
     "/glob"
   ],
   "_resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
-  "_spec": "1.0.6",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_shasum": "49bd6331d7d02d0c09bc910a1075ba8165b56df9",
+  "_spec": "inflight@^1.0.4",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers\\node_modules\\glob",
   "author": {
     "name": "Isaac Z. Schlueter",
     "email": "i@izs.me",
@@ -35,10 +30,12 @@
   "bugs": {
     "url": "https://github.com/isaacs/inflight/issues"
   },
+  "bundleDependencies": false,
   "dependencies": {
     "once": "^1.3.0",
     "wrappy": "1"
   },
+  "deprecated": false,
   "description": "Add callbacks to requests in flight to avoid async duplication",
   "devDependencies": {
     "tap": "^7.1.2"
diff --git a/WebServer/node_modules/inherits/inherits.js b/BackendServers/node_modules/inherits/inherits.js
similarity index 100%
rename from WebServer/node_modules/inherits/inherits.js
rename to BackendServers/node_modules/inherits/inherits.js
diff --git a/WebServer/node_modules/inherits/inherits_browser.js b/BackendServers/node_modules/inherits/inherits_browser.js
similarity index 100%
rename from WebServer/node_modules/inherits/inherits_browser.js
rename to BackendServers/node_modules/inherits/inherits_browser.js
diff --git a/WebServer/node_modules/inherits/package.json b/BackendServers/node_modules/inherits/package.json
similarity index 93%
rename from WebServer/node_modules/inherits/package.json
rename to BackendServers/node_modules/inherits/package.json
index c62a26a4a..fe06dfd91 100644
--- a/WebServer/node_modules/inherits/package.json
+++ b/BackendServers/node_modules/inherits/package.json
@@ -21,7 +21,7 @@
   "_resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
   "_shasum": "0fa2c64f932917c3433a0ded55363aae37416b7c",
   "_spec": "inherits@2",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer\\node_modules\\glob",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers\\node_modules\\glob",
   "browser": "./inherits_browser.js",
   "bugs": {
     "url": "https://github.com/isaacs/inherits/issues"
diff --git a/WebServer/node_modules/is-wsl/index.js b/BackendServers/node_modules/is-wsl/index.js
similarity index 100%
rename from WebServer/node_modules/is-wsl/index.js
rename to BackendServers/node_modules/is-wsl/index.js
diff --git a/WebServer/node_modules/is-wsl/package.json b/BackendServers/node_modules/is-wsl/package.json
similarity index 78%
rename from WebServer/node_modules/is-wsl/package.json
rename to BackendServers/node_modules/is-wsl/package.json
index f99ca34db..e54b8febc 100644
--- a/WebServer/node_modules/is-wsl/package.json
+++ b/BackendServers/node_modules/is-wsl/package.json
@@ -1,32 +1,27 @@
 {
-  "_args": [
-    [
-      "is-wsl@1.1.0",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "is-wsl@1.1.0",
+  "_from": "is-wsl@^1.1.0",
   "_id": "is-wsl@1.1.0",
   "_inBundle": false,
   "_integrity": "sha1-HxbkqiKwTRM2tmGIpmrzxgDDpm0=",
   "_location": "/is-wsl",
   "_phantomChildren": {},
   "_requested": {
-    "type": "version",
+    "type": "range",
     "registry": true,
-    "raw": "is-wsl@1.1.0",
+    "raw": "is-wsl@^1.1.0",
     "name": "is-wsl",
     "escapedName": "is-wsl",
-    "rawSpec": "1.1.0",
+    "rawSpec": "^1.1.0",
     "saveSpec": null,
-    "fetchSpec": "1.1.0"
+    "fetchSpec": "^1.1.0"
   },
   "_requiredBy": [
     "/open"
   ],
   "_resolved": "https://registry.npmjs.org/is-wsl/-/is-wsl-1.1.0.tgz",
-  "_spec": "1.1.0",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_shasum": "1f16e4aa22b04d1336b66188a66af3c600c3a66d",
+  "_spec": "is-wsl@^1.1.0",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers\\node_modules\\open",
   "author": {
     "name": "Sindre Sorhus",
     "email": "sindresorhus@gmail.com",
@@ -35,6 +30,8 @@
   "bugs": {
     "url": "https://github.com/sindresorhus/is-wsl/issues"
   },
+  "bundleDependencies": false,
+  "deprecated": false,
   "description": "Check if the process is running inside Windows Subsystem for Linux (Bash on Windows)",
   "devDependencies": {
     "ava": "*",
diff --git a/WebServer/node_modules/minimatch/minimatch.js b/BackendServers/node_modules/minimatch/minimatch.js
similarity index 100%
rename from WebServer/node_modules/minimatch/minimatch.js
rename to BackendServers/node_modules/minimatch/minimatch.js
diff --git a/WebServer/node_modules/minimatch/package.json b/BackendServers/node_modules/minimatch/package.json
similarity index 77%
rename from WebServer/node_modules/minimatch/package.json
rename to BackendServers/node_modules/minimatch/package.json
index da833d0b1..2c585fe30 100644
--- a/WebServer/node_modules/minimatch/package.json
+++ b/BackendServers/node_modules/minimatch/package.json
@@ -1,33 +1,27 @@
 {
-  "_args": [
-    [
-      "minimatch@3.0.4",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "minimatch@3.0.4",
+  "_from": "minimatch@^3.0.4",
   "_id": "minimatch@3.0.4",
   "_inBundle": false,
   "_integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
   "_location": "/minimatch",
   "_phantomChildren": {},
   "_requested": {
-    "type": "version",
+    "type": "range",
     "registry": true,
-    "raw": "minimatch@3.0.4",
+    "raw": "minimatch@^3.0.4",
     "name": "minimatch",
     "escapedName": "minimatch",
-    "rawSpec": "3.0.4",
+    "rawSpec": "^3.0.4",
     "saveSpec": null,
-    "fetchSpec": "3.0.4"
+    "fetchSpec": "^3.0.4"
   },
   "_requiredBy": [
-    "/glob",
-    "/mocha"
+    "/glob"
   ],
   "_resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
-  "_spec": "3.0.4",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_shasum": "5166e286457f03306064be5497e8dbb0c3d32083",
+  "_spec": "minimatch@^3.0.4",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers\\node_modules\\glob",
   "author": {
     "name": "Isaac Z. Schlueter",
     "email": "i@izs.me",
@@ -36,9 +30,11 @@
   "bugs": {
     "url": "https://github.com/isaacs/minimatch/issues"
   },
+  "bundleDependencies": false,
   "dependencies": {
     "brace-expansion": "^1.1.7"
   },
+  "deprecated": false,
   "description": "a glob matcher in javascript",
   "devDependencies": {
     "tap": "^10.3.2"
diff --git a/WebServer/node_modules/once/once.js b/BackendServers/node_modules/once/once.js
similarity index 100%
rename from WebServer/node_modules/once/once.js
rename to BackendServers/node_modules/once/once.js
diff --git a/WebServer/node_modules/once/package.json b/BackendServers/node_modules/once/package.json
similarity index 74%
rename from WebServer/node_modules/once/package.json
rename to BackendServers/node_modules/once/package.json
index bd1f0986c..6a37faad8 100644
--- a/WebServer/node_modules/once/package.json
+++ b/BackendServers/node_modules/once/package.json
@@ -1,35 +1,28 @@
 {
-  "_args": [
-    [
-      "once@1.4.0",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "once@1.4.0",
+  "_from": "once@^1.3.0",
   "_id": "once@1.4.0",
   "_inBundle": false,
   "_integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
   "_location": "/once",
   "_phantomChildren": {},
   "_requested": {
-    "type": "version",
+    "type": "range",
     "registry": true,
-    "raw": "once@1.4.0",
+    "raw": "once@^1.3.0",
     "name": "once",
     "escapedName": "once",
-    "rawSpec": "1.4.0",
+    "rawSpec": "^1.3.0",
     "saveSpec": null,
-    "fetchSpec": "1.4.0"
+    "fetchSpec": "^1.3.0"
   },
   "_requiredBy": [
-    "/end-of-stream",
     "/glob",
-    "/inflight",
-    "/pump"
+    "/inflight"
   ],
   "_resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
-  "_spec": "1.4.0",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_shasum": "583b1aa775961d4b113ac17d9c50baef9dd76bd1",
+  "_spec": "once@^1.3.0",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers\\node_modules\\glob",
   "author": {
     "name": "Isaac Z. Schlueter",
     "email": "i@izs.me",
@@ -38,9 +31,11 @@
   "bugs": {
     "url": "https://github.com/isaacs/once/issues"
   },
+  "bundleDependencies": false,
   "dependencies": {
     "wrappy": "1"
   },
+  "deprecated": false,
   "description": "Run a function exactly one time",
   "devDependencies": {
     "tap": "^7.0.1"
diff --git a/WebServer/node_modules/open/index.js b/BackendServers/node_modules/open/index.js
similarity index 100%
rename from WebServer/node_modules/open/index.js
rename to BackendServers/node_modules/open/index.js
diff --git a/WebServer/node_modules/open/package.json b/BackendServers/node_modules/open/package.json
similarity index 82%
rename from WebServer/node_modules/open/package.json
rename to BackendServers/node_modules/open/package.json
index 28c5e1c10..b604971b8 100644
--- a/WebServer/node_modules/open/package.json
+++ b/BackendServers/node_modules/open/package.json
@@ -1,32 +1,27 @@
 {
-  "_args": [
-    [
-      "open@6.4.0",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "open@6.4.0",
+  "_from": "open@^6.4.0",
   "_id": "open@6.4.0",
   "_inBundle": false,
   "_integrity": "sha512-IFenVPgF70fSm1keSd2iDBIDIBZkroLeuffXq+wKTzTJlBpesFWojV9lb8mzOfaAzM1sr7HQHuO0vtV0zYekGg==",
   "_location": "/open",
   "_phantomChildren": {},
   "_requested": {
-    "type": "version",
+    "type": "range",
     "registry": true,
-    "raw": "open@6.4.0",
+    "raw": "open@^6.4.0",
     "name": "open",
     "escapedName": "open",
-    "rawSpec": "6.4.0",
+    "rawSpec": "^6.4.0",
     "saveSpec": null,
-    "fetchSpec": "6.4.0"
+    "fetchSpec": "^6.4.0"
   },
   "_requiredBy": [
     "/"
   ],
   "_resolved": "https://registry.npmjs.org/open/-/open-6.4.0.tgz",
-  "_spec": "6.4.0",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_shasum": "5c13e96d0dc894686164f18965ecfe889ecfc8a9",
+  "_spec": "open@^6.4.0",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers",
   "author": {
     "name": "Sindre Sorhus",
     "email": "sindresorhus@gmail.com",
@@ -35,9 +30,11 @@
   "bugs": {
     "url": "https://github.com/sindresorhus/open/issues"
   },
+  "bundleDependencies": false,
   "dependencies": {
     "is-wsl": "^1.1.0"
   },
+  "deprecated": false,
   "description": "Open stuff like URLs, files, executables. Cross-platform.",
   "devDependencies": {
     "@types/node": "^11.13.6",
diff --git a/WebServer/node_modules/path-is-absolute/index.js b/BackendServers/node_modules/path-is-absolute/index.js
similarity index 100%
rename from WebServer/node_modules/path-is-absolute/index.js
rename to BackendServers/node_modules/path-is-absolute/index.js
diff --git a/WebServer/node_modules/path-is-absolute/package.json b/BackendServers/node_modules/path-is-absolute/package.json
similarity index 78%
rename from WebServer/node_modules/path-is-absolute/package.json
rename to BackendServers/node_modules/path-is-absolute/package.json
index 51a53cf97..19c67bb04 100644
--- a/WebServer/node_modules/path-is-absolute/package.json
+++ b/BackendServers/node_modules/path-is-absolute/package.json
@@ -1,32 +1,27 @@
 {
-  "_args": [
-    [
-      "path-is-absolute@1.0.1",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "path-is-absolute@1.0.1",
+  "_from": "path-is-absolute@^1.0.0",
   "_id": "path-is-absolute@1.0.1",
   "_inBundle": false,
   "_integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
   "_location": "/path-is-absolute",
   "_phantomChildren": {},
   "_requested": {
-    "type": "version",
+    "type": "range",
     "registry": true,
-    "raw": "path-is-absolute@1.0.1",
+    "raw": "path-is-absolute@^1.0.0",
     "name": "path-is-absolute",
     "escapedName": "path-is-absolute",
-    "rawSpec": "1.0.1",
+    "rawSpec": "^1.0.0",
     "saveSpec": null,
-    "fetchSpec": "1.0.1"
+    "fetchSpec": "^1.0.0"
   },
   "_requiredBy": [
     "/glob"
   ],
   "_resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
-  "_spec": "1.0.1",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_shasum": "174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f",
+  "_spec": "path-is-absolute@^1.0.0",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers\\node_modules\\glob",
   "author": {
     "name": "Sindre Sorhus",
     "email": "sindresorhus@gmail.com",
@@ -35,6 +30,8 @@
   "bugs": {
     "url": "https://github.com/sindresorhus/path-is-absolute/issues"
   },
+  "bundleDependencies": false,
+  "deprecated": false,
   "description": "Node.js 0.12 path.isAbsolute() ponyfill",
   "devDependencies": {
     "xo": "^0.16.0"
diff --git a/WebServer/node_modules/rimraf/bin.js b/BackendServers/node_modules/rimraf/bin.js
similarity index 100%
rename from WebServer/node_modules/rimraf/bin.js
rename to BackendServers/node_modules/rimraf/bin.js
diff --git a/WebServer/node_modules/rimraf/package.json b/BackendServers/node_modules/rimraf/package.json
similarity index 86%
rename from WebServer/node_modules/rimraf/package.json
rename to BackendServers/node_modules/rimraf/package.json
index 5527c1470..8487c013f 100644
--- a/WebServer/node_modules/rimraf/package.json
+++ b/BackendServers/node_modules/rimraf/package.json
@@ -1,28 +1,27 @@
 {
-  "_from": "rimraf@3.0.2",
+  "_from": "rimraf@^3.0.2",
   "_id": "rimraf@3.0.2",
   "_inBundle": false,
   "_integrity": "sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==",
   "_location": "/rimraf",
   "_phantomChildren": {},
   "_requested": {
-    "type": "version",
+    "type": "range",
     "registry": true,
-    "raw": "rimraf@3.0.2",
+    "raw": "rimraf@^3.0.2",
     "name": "rimraf",
     "escapedName": "rimraf",
-    "rawSpec": "3.0.2",
+    "rawSpec": "^3.0.2",
     "saveSpec": null,
-    "fetchSpec": "3.0.2"
+    "fetchSpec": "^3.0.2"
   },
   "_requiredBy": [
-    "#USER",
     "/"
   ],
   "_resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
   "_shasum": "f1a5402ba6220ad52cc1282bac1ae3aa49fd061a",
-  "_spec": "rimraf@3.0.2",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_spec": "rimraf@^3.0.2",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers",
   "author": {
     "name": "Isaac Z. Schlueter",
     "email": "i@izs.me",
diff --git a/WebServer/node_modules/rimraf/rimraf.js b/BackendServers/node_modules/rimraf/rimraf.js
similarity index 100%
rename from WebServer/node_modules/rimraf/rimraf.js
rename to BackendServers/node_modules/rimraf/rimraf.js
diff --git a/WebServer/node_modules/wrappy/package.json b/BackendServers/node_modules/wrappy/package.json
similarity index 75%
rename from WebServer/node_modules/wrappy/package.json
rename to BackendServers/node_modules/wrappy/package.json
index 2b1cb7bc7..d20196f8f 100644
--- a/WebServer/node_modules/wrappy/package.json
+++ b/BackendServers/node_modules/wrappy/package.json
@@ -1,33 +1,28 @@
 {
-  "_args": [
-    [
-      "wrappy@1.0.2",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "wrappy@1.0.2",
+  "_from": "wrappy@1",
   "_id": "wrappy@1.0.2",
   "_inBundle": false,
   "_integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
   "_location": "/wrappy",
   "_phantomChildren": {},
   "_requested": {
-    "type": "version",
+    "type": "range",
     "registry": true,
-    "raw": "wrappy@1.0.2",
+    "raw": "wrappy@1",
     "name": "wrappy",
     "escapedName": "wrappy",
-    "rawSpec": "1.0.2",
+    "rawSpec": "1",
     "saveSpec": null,
-    "fetchSpec": "1.0.2"
+    "fetchSpec": "1"
   },
   "_requiredBy": [
     "/inflight",
     "/once"
   ],
   "_resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-  "_spec": "1.0.2",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
+  "_shasum": "b5243d8f3ec1aa35f1364605bc0d1036e30ab69f",
+  "_spec": "wrappy@1",
+  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\BackendServers\\node_modules\\inflight",
   "author": {
     "name": "Isaac Z. Schlueter",
     "email": "i@izs.me",
@@ -36,7 +31,9 @@
   "bugs": {
     "url": "https://github.com/npm/wrappy/issues"
   },
+  "bundleDependencies": false,
   "dependencies": {},
+  "deprecated": false,
   "description": "Callback wrapping utility",
   "devDependencies": {
     "tap": "^2.3.1"
diff --git a/WebServer/node_modules/wrappy/wrappy.js b/BackendServers/node_modules/wrappy/wrappy.js
similarity index 100%
rename from WebServer/node_modules/wrappy/wrappy.js
rename to BackendServers/node_modules/wrappy/wrappy.js
diff --git a/BackendServers/package-lock.json b/BackendServers/package-lock.json
index 1bc75af81..01f0a7924 100644
--- a/BackendServers/package-lock.json
+++ b/BackendServers/package-lock.json
@@ -1,19 +1,122 @@
 {
-  "name": "backend-server",
-  "version": "0.0.0",
+  "name": "backend-servers",
+  "version": "0.0.6",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "balanced-match": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
+    },
+    "brace-expansion": {
+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "requires": {
+        "balanced-match": "1.0.0",
+        "concat-map": "0.0.1"
+      }
+    },
+    "ccxt": {
+      "version": "1.26.45",
+      "resolved": "https://registry.npmjs.org/ccxt/-/ccxt-1.26.45.tgz",
+      "integrity": "sha512-/gmeUKUlNsroBR2/W7A3knZzCvPYzztb7VRwtWyqze7U/LZiXsXo1GBSC2goQIe2xL8FlAyk7ARjZrPdSWtExA=="
+    },
     "child_process": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/child_process/-/child_process-1.0.2.tgz",
       "integrity": "sha1-sffn/HPSXn/R1FWtyU4UODAYK1o="
     },
+    "concat-map": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
+    },
     "dotenv": {
       "version": "8.2.0",
       "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-8.2.0.tgz",
       "integrity": "sha512-8sJ78ElpbDJBHNeBzUbUVLsqKdccaa/BXF1uPTw3GrvQTBgrQrtObr2mUrE38vzYd8cEv+m/JBfDLioYcfXoaw=="
     },
+    "fs.realpath": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
+    },
+    "glob": {
+      "version": "7.1.6",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
+      "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
+      "requires": {
+        "fs.realpath": "1.0.0",
+        "inflight": "1.0.6",
+        "inherits": "2.0.4",
+        "minimatch": "3.0.4",
+        "once": "1.4.0",
+        "path-is-absolute": "1.0.1"
+      }
+    },
+    "inflight": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
+      "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
+      "requires": {
+        "once": "1.4.0",
+        "wrappy": "1.0.2"
+      }
+    },
+    "inherits": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+      "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+    },
+    "is-wsl": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/is-wsl/-/is-wsl-1.1.0.tgz",
+      "integrity": "sha1-HxbkqiKwTRM2tmGIpmrzxgDDpm0="
+    },
+    "minimatch": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
+      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "requires": {
+        "brace-expansion": "1.1.11"
+      }
+    },
+    "once": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
+      "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
+      "requires": {
+        "wrappy": "1.0.2"
+      }
+    },
+    "open": {
+      "version": "6.4.0",
+      "resolved": "https://registry.npmjs.org/open/-/open-6.4.0.tgz",
+      "integrity": "sha512-IFenVPgF70fSm1keSd2iDBIDIBZkroLeuffXq+wKTzTJlBpesFWojV9lb8mzOfaAzM1sr7HQHuO0vtV0zYekGg==",
+      "requires": {
+        "is-wsl": "1.1.0"
+      }
+    },
+    "path-is-absolute": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
+      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
+    },
+    "rimraf": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
+      "integrity": "sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==",
+      "requires": {
+        "glob": "7.1.6"
+      }
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+    },
     "ws": {
       "version": "7.2.3",
       "resolved": "https://registry.npmjs.org/ws/-/ws-7.2.3.tgz",
diff --git a/BackendServers/package.json b/BackendServers/package.json
index 37c6ecb63..95e6290cb 100644
--- a/BackendServers/package.json
+++ b/BackendServers/package.json
@@ -1,14 +1,17 @@
 {
-  "name": "backend-server",
-  "version": "0.0.0",
+  "name": "backend-servers",
+  "version": "0.0.6",
   "description": "BackendServer",
-  "main": "app.js",
+  "main": "server.js",
   "author": {
-    "name": "Luis"
+    "name": "Luis-Fernando-Molina"
   },
   "dependencies": {
     "child_process": "^1.0.2",
     "dotenv": "^8.2.0",
-    "ws": "^7.1.2"
+    "ws": "^7.1.2",
+    "ccxt": "^1.23.67",
+    "open": "^6.4.0",
+    "rimraf": "^3.0.2"
   }
 }
diff --git a/BackendServers/server.js b/BackendServers/server.js
index a9636899b..4a9cf0c44 100644
--- a/BackendServers/server.js
+++ b/BackendServers/server.js
@@ -1,7 +1,7 @@
 
 process.on('uncaughtException', function (err) {
     if (err.message.indexOf("EADDRINUSE") > 0) {
-        console.log("Superalgos Backend Server cannot be started. Reason: the port " + port + " is already in use by another application.")
+        console.log("A Superalgos Backend Server cannot be started. Reason: the port " + port + " is already in use by another application.")
         return
     }
     console.log('[ERROR] Backend Server -> server -> uncaughtException -> err.message = ' + err.message)
@@ -27,9 +27,26 @@ global.DEFAULT_FAIL_RESPONSE = {
     message: "Operation Failed"
 };
 
+global.DEFAULT_RETRY_RESPONSE = {
+    result: 'Retry',
+    message: 'Retry Later'
+}
+
+global.CUSTOM_OK_RESPONSE = {
+    result: 'Ok, but check Message',
+    message: 'Custom Message'
+}
+
+global.CUSTOM_FAIL_RESPONSE = {
+    result: 'Fail Because',
+    message: 'Custom Message'
+}
+
+
 let EVENTS_SERVER = require('./eventsServer.js');
 let WEB_SOCKETS_SERVER = require('./webSocketsServer.js');
 let TASK_MANAGER_SERVER = require('./taskManagerServer.js');
+let WEB_SERVER = require('./webServer.js');
 
 try {
     EVENTS_SERVER = EVENTS_SERVER.newEventsServer()
@@ -43,6 +60,11 @@ try {
     TASK_MANAGER_SERVER = TASK_MANAGER_SERVER.newTaskManagerServer(WEB_SOCKETS_SERVER, EVENTS_SERVER)
     TASK_MANAGER_SERVER.initialize()
     TASK_MANAGER_SERVER.run()
+
+    WEB_SERVER = WEB_SERVER.newWebServer(EVENTS_SERVER)
+    WEB_SERVER.initialize()
+    WEB_SERVER.run()
+
 } catch (err) {
     console.log('[ERROR] BackendServers -> Task Manager -> server -> Error = ' + err.stack)
 }
diff --git a/BackendServers/webServer.js b/BackendServers/webServer.js
new file mode 100644
index 000000000..6953918df
--- /dev/null
+++ b/BackendServers/webServer.js
@@ -0,0 +1,577 @@
+exports.newWebServer = function newWebServer(EVENTS_SERVER) {
+
+    const MODULE = "Web Server"
+
+    let thisObject = {
+        initialize: initialize,
+        finalize: finalize,
+        run: run
+    }
+
+    require('dotenv').config()
+    const open = require('open')
+
+    CONSOLE_LOG = process.env.CONSOLE_LOG === 'true'
+    CONSOLE_ERROR_LOG = process.env.CONSOLE_ERROR_LOG === 'true'
+    LOG_FILE_CONTENT = process.env.LOG_FILE_CONTENT === 'true'
+
+    let port = process.env.WEB_SERVER_PORT
+
+    let http = require('http')
+    let isHttpServerStarted = false
+    let cloneExecutorChildProcess
+
+    return thisObject
+
+    function finalize() {
+
+    }
+
+    function initialize() {
+
+    }
+
+    function run() {
+        startHtttpServer()
+    }
+
+    function startHtttpServer() {
+        if (CONSOLE_LOG === true) { console.log('[INFO] webServer -> startHtttpServer -> Entering function.') }
+
+        try {
+            if (isHttpServerStarted === false) {
+                gWebServer = http.createServer(onBrowserRequest).listen(port)
+                isHttpServerStarted = true
+                open('http://localhost:' + port)
+                console.log('Web Server Started.')
+            }
+        } catch (err) {
+            console.log('[ERROR] webServer -> startHtttpServer -> Error = ' + err.stack)
+        }
+    }
+
+    function onBrowserRequest(request, response) {
+        if (CONSOLE_LOG === true && request.url.indexOf('NO-LOG') === -1) { console.log('[INFO] webServer -> onBrowserRequest -> request.url = ' + request.url) }
+
+        let requestParameters = request.url.split('/')
+
+        if (requestParameters[1].indexOf('index.html') >= 0) {
+            /*
+            We use this to solve the problem when someone is arriving to the site with a sessionToken in the queryString. We extract here that
+            token, that will be sent later embedded into the HTML code, so that it can enter into the stardard circuit where any site can put
+            the sessionToken into their HTML code and from there the Browser app will log the user in.
+            */
+
+            let queryString = requestParameters[1].split('?')
+
+            requestParameters[1] = ''
+            requestParameters[2] = queryString[1]
+            homePage()
+
+            return
+        }
+
+        requestParameters = request.url.split('?') // Remove version information
+        requestParameters = requestParameters[0].split('/')
+
+        switch (requestParameters[1]) {
+
+            case 'CCXT':
+                {
+                    getBody(processRequest)
+
+                    function getBody(callback) {
+                        let body = ''
+
+                        request.on('data', function (data) {
+                            body += data
+                            // Too much POST data
+                            if (body.length > 1e6) {
+                                request.connection.destroy()
+                            }
+                        })
+
+                        request.on('end', function () {
+                            callback(body)
+                        })
+                    }
+                    async function processRequest(body) {
+                        try {
+                            let params = JSON.parse(body)
+
+                            const ccxt = require('ccxt')
+
+                            switch (params.method) {
+                                case 'fetchMarkets': {
+
+                                    const exchangeClass = ccxt[params.exchangeId]
+                                    const exchangeConstructorParams = {
+                                        'timeout': 30000,
+                                        'enableRateLimit': true,
+                                        verbose: false
+                                    }
+
+                                    let ccxtExchange = new exchangeClass(exchangeConstructorParams)
+                                    let ccxtMarkets = []
+
+                                    if (ccxtExchange.has.fetchMarkets === true) {
+                                        ccxtMarkets = await ccxtExchange.fetchMarkets()
+                                    }
+                                    respondWithContent(JSON.stringify(ccxtMarkets), response)
+                                    return
+                                }
+                                case 'listExchanges': {
+                                    let exchanges = []
+                                    for (let i = 0; i < ccxt.exchanges.length; i++) {
+                                        let exchangeId = ccxt.exchanges[i]
+
+                                        const exchangeClass = ccxt[exchangeId]
+                                        const exchangeConstructorParams = {
+                                            'timeout': 30000,
+                                            'enableRateLimit': true,
+                                            verbose: false
+                                        }
+                                        let ccxtExchange
+                                        try { ccxtExchange = new exchangeClass(exchangeConstructorParams) }
+                                        catch (err) { }
+                                        if (ccxtExchange === undefined) { continue }
+
+
+                                        if (ccxtExchange.has.fetchOHLCV === params.has.fetchOHLCV) {
+                                            if (ccxtExchange.has.fetchMarkets === params.has.fetchMarkets) {
+                                                if (ccxtExchange.timeframes['1m'] !== undefined) {
+                                                    let exchange = {
+                                                        name: ccxtExchange.name,
+                                                        id: ccxtExchange.id
+                                                    }
+                                                    exchanges.push(exchange)
+                                                }
+                                            }
+                                        }
+                                    }
+                                    respondWithContent(JSON.stringify(exchanges), response)
+                                    return
+                                }
+                            }
+
+                            let content = {
+                                err: global.DEFAULT_FAIL_RESPONSE // method not supported
+                            }
+                        } catch (err) {
+                            if (CONSOLE_LOG === true) { console.log('[INFO] webServer -> CCXT FetchMarkets -> Could not fetch markets.') }
+                            let error = {
+                                result: 'Fail Because',
+                                message: err.message
+                            }
+                            respondWithContent(JSON.stringify(error), response)
+                        }
+                    }
+                    break
+                }
+
+            case 'ResetLogsAndData':
+                {
+                    try {
+                        let rimraf = require('rimraf')
+                        rimraf.sync(process.env.STORAGE_PATH + '/Masters/Masters/AAJason.1.0')
+                        rimraf.sync(process.env.LOG_PATH)
+
+                        respondWithContent(JSON.stringify(global.DEFAULT_OK_RESPONSE), response)
+                    } catch (err) {
+                        if (CONSOLE_LOG === true) { console.log('[INFO] webServer -> ResetLogsAndData -> Could not delete Logs and Data.') }
+                        let error = {
+                            result: 'Fail Because',
+                            message: err.message
+                        }
+                        respondWithContent(JSON.stringify(error), response)
+                    }
+                    break
+                }
+
+            case 'LegacyPlotter.js':
+                {
+                    respondWithFile(process.env.PATH_TO_WEB_SERVER + 'WebServer/LegacyPlotter.js', response)
+                }
+                break
+
+            case 'PlotterPanel.js':
+                {
+                    respondWithFile(process.env.PATH_TO_WEB_SERVER + 'WebServer/PlotterPanel.js', response)
+                }
+                break
+
+            case 'Images': // This means the Images folder.
+                {
+                    let path = process.env.PATH_TO_WEB_SERVER + 'WebServer/Images/' + requestParameters[2]
+
+                    if (requestParameters[3] !== undefined) {
+                        path = path + '/' + requestParameters[3]
+                    }
+
+                    if (requestParameters[4] !== undefined) {
+                        path = path + '/' + requestParameters[4]
+                    }
+
+                    if (requestParameters[5] !== undefined) {
+                        path = path + '/' + requestParameters[5]
+                    }
+
+                    path = unescape(path)
+
+                    respondWithImage(path, response)
+                }
+                break
+
+            case 'favicon.ico': // This means the Scripts folder.
+                {
+                    respondWithImage(process.env.PATH_TO_WEB_SERVER + 'WebServer/Images/' + 'favicon.ico', response)
+                }
+                break
+
+            case 'CockpitSpace': // This means the CockpitSpace folder.
+                {
+                    respondWithFile(process.env.PATH_TO_CANVAS_APP + '/CockpitSpace/' + requestParameters[2], response)
+                }
+                break
+
+            case 'TopSpace': // This means the TopSpace folder.
+                {
+                    respondWithFile(process.env.PATH_TO_CANVAS_APP + '/TopSpace/' + requestParameters[2], response)
+                }
+                break
+
+            case 'DesignSpace': // This means the DesignSpace folder.
+
+                {
+                    if (requestParameters[3] === undefined) {
+                        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/DesignSpace/' + requestParameters[2], response)
+                        return
+                    }
+                    if (requestParameters[4] === undefined) {
+                        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/DesignSpace/' + requestParameters[2] + '/' + requestParameters[3], response)
+                        return
+                    }
+                    if (requestParameters[5] === undefined) {
+                        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/DesignSpace/' + requestParameters[2] + '/' + requestParameters[3] + '/' + requestParameters[4], response)
+                        return
+                    }
+                }
+                break
+
+            case 'ControlsToolBox': // This means the DesignSpace folder.
+                {
+                    respondWithFile(process.env.PATH_TO_CANVAS_APP + '/ControlsToolBox/' + requestParameters[2], response)
+                }
+                break
+
+            case 'Utilities': // This means the DesignSpace folder.
+                {
+                    respondWithFile(process.env.PATH_TO_CANVAS_APP + '/Utilities/' + requestParameters[2], response)
+                }
+                break
+
+            case 'WebServer': // This means the WebServer folder.
+                {
+                    respondWithFile(process.env.PATH_TO_WEB_SERVER + 'WebServer/' + requestParameters[2], response)
+                }
+                break
+
+            case 'externalScripts': // This means the WebServer folder.
+                {
+                    respondWithFile(process.env.PATH_TO_WEB_SERVER + 'WebServer/externalScripts/' + requestParameters[2], response)
+                }
+                break
+
+            case 'Plotters': // This means the plotter folder, not to be confused with the Plotters script!
+                {
+                    let dataMine = requestParameters[2]
+                    let codeName = requestParameters[3]
+                    let moduleName = requestParameters[4]
+                    let filePath = process.env.PLOTTERS_PATH + '/' + dataMine + '/plotters/' + codeName + '/' + moduleName
+                    respondWithFile(filePath, response)
+                }
+                break
+
+            case 'PlotterPanels': // This means the PlotterPanels folder, not to be confused with the Plotter Panels scripts!
+                {
+                    let dataMine = requestParameters[2]
+                    let codeName = requestParameters[3]
+                    let moduleName = requestParameters[4]
+                    let filePath = process.env.PLOTTERS_PATH + '/' + dataMine + '/plotters/' + codeName + '/' + moduleName
+                    respondWithFile(filePath, response)
+                }
+                break
+            case 'Panels':
+                {
+                    respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1] + '/' + requestParameters[2], response)
+                }
+                break
+
+            case 'ChartLayers':
+                {
+                    respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1] + '/' + requestParameters[2], response)
+                }
+                break
+
+            case 'Spaces':
+                {
+                    respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1] + '/' + requestParameters[2], response)
+                }
+                break
+
+            case 'Scales':
+                {
+                    respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1] + '/' + requestParameters[2], response)
+                }
+                break
+
+            case 'Files':
+                {
+                    respondWithFile(process.env.PATH_TO_FILES_COMPONENT + '/' + requestParameters[2], response)
+                }
+                break
+
+            case 'FloatingSpace':
+                {
+                    respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1] + '/' + requestParameters[2], response)
+                }
+                break
+
+            case 'ChartingSpace':
+                {
+                    respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1] + '/' + requestParameters[2], response)
+                }
+                break
+
+            case 'AppSchema.js':
+                {
+                    let fs = require('fs')
+
+                    try {
+                        let filePath = process.env.APP_SCHEMA_PATH + 'AppSchema.json'
+                        fs.readFile(filePath, onFileRead)
+                    } catch (e) {
+                        console.log('[ERROR] Error reading the App Schema.', e)
+                    }
+
+                    function onFileRead(err, appSchema) {
+                        if (err) {
+                            respondWithContent(undefined, response)
+                        } else {
+                            let responseContent = 'function getAppSchema(){ return ' + appSchema + '}'
+                            respondWithContent(responseContent, response)
+                        }
+                    }
+                }
+                break
+
+            case 'Workspace.js':
+                {
+                    let fs = require('fs')
+
+                    try {
+                        let filePath = process.env.WORKSPACE_PATH + 'Workspace.json'
+                        fs.readFile(filePath, onFileRead)
+                    } catch (e) {
+                        console.log('[ERROR] Error reading the Workspace.', e)
+                    }
+
+                    function onFileRead(err, workspace) {
+                        if (err) {
+                            respondWithContent(undefined, response)
+                        } else {
+                            let responseContent = 'function getWorkspace(){ return ' + workspace + '}'
+                            respondWithContent(responseContent, response)
+                        }
+                    }
+                }
+                break
+
+            case 'DataMines':
+                {
+                    respondWithFile(process.env.DATA_MINES_PATH + '/' + requestParameters[2] + '.json', response)
+                }
+                break
+
+            case 'TradingSystems':
+                {
+                    respondWithFile(process.env.TRADING_SYSTEMS_PATH + '/' + requestParameters[2] + '.json', response)
+                }
+                break
+
+            case 'SuperScripts':
+                {
+                    respondWithFile(process.env.SUPER_SCRIPTS_PATH + '/' + requestParameters[2] + '.json', response)
+                }
+                break
+
+            case 'Storage':
+                {
+                    respondWithFile(process.env.STORAGE_PATH + '/' + request.url.substring(9), response)
+                }
+                break
+
+            case 'GetDefinition':
+                {
+                    respondWithFile(process.env.INTER_PROCESS_FILES_PATH + '/definition.json', response)
+                }
+                break
+
+            case 'SaveDefinition':
+                {
+                    let fs = require('fs')
+                    let body = ''
+
+                    request.on('data', function (data) {
+                        body += data
+                        // Too much POST data
+                        if (body.length > 1e6) {
+                            request.connection.destroy()
+                        }
+                    })
+
+                    request.on('end', function () {
+                        try {
+                            let filePath = process.env.INTER_PROCESS_FILES_PATH + '/definition.json'
+                            fs.writeFile(filePath, body, onFileWrite)
+                        } catch (e) {
+                            console.log('[ERROR] Error writing user config.', e)
+                            respondWithContent(undefined, response)
+                        }
+
+                        function onFileWrite(err) {
+                            if (err) {
+                                respondWithContent(undefined, response)
+                            } else {
+                                let responseContent = 'User config updated.'
+                                respondWithContent(responseContent, response)
+                            }
+                        }
+                    })
+                }
+                break
+
+            default:
+                {
+                    homePage()
+                }
+        }
+
+        function homePage() {
+            if (requestParameters[1] === '') {
+                let fs = require('fs')
+                try {
+                    let fileName = process.env.PATH_TO_WEB_SERVER + 'WebServer/index.html'
+                    fs.readFile(fileName, onFileRead)
+
+                    function onFileRead(err, file) {
+                        if (CONSOLE_LOG === true) { console.log('[INFO] webServer -> onBrowserRequest -> onFileRead -> Entering function.') }
+
+                        try {
+                            let fileContent = file.toString()
+
+                            fileContent = fileContent.replace('WEB_SERVER_PORT', process.env.WEB_SERVER_PORT)
+                            respondWithContent(fileContent, response)
+                        } catch (err) {
+                            console.log('[ERROR] webServer -> onBrowserRequest -> File Not Found: ' + fileName + ' or Error = ' + err.stack)
+                        }
+                    }
+                } catch (err) {
+                    console.log(err)
+                }
+            } else {
+                respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1], response)
+            }
+        }
+    }
+
+    function respondWithFile(fileName, response) {
+        if (CONSOLE_LOG === true) { console.log('[INFO] webServer -> respondWithFile -> Entering function.') }
+
+        let fs = require('fs')
+        if (fileName.indexOf('undefined') > 0) {
+            console.log('[WRN] webServer -> respondWithFile -> Received request for undefined file. ')
+            respondWithContent(undefined, response)
+        } else {
+            try {
+                fs.readFile(fileName, onFileRead)
+
+                function onFileRead(err, file) {
+                    if (CONSOLE_LOG === true) { console.log('[INFO] webServer -> respondWithFile -> onFileRead -> Entering function.') }
+                    if (!err) {
+                        respondWithContent(file.toString(), response)
+                    } else {
+                        respondWithContent(undefined, response)
+                    }
+                }
+            } catch (err) {
+                returnEmptyArray()
+            }
+        }
+    }
+
+    function respondWithContent(content, response) {
+        if (CONSOLE_LOG === true) { console.log('[INFO] webServer -> respondWithContent -> Entering function.') }
+
+        try {
+            response.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate') // HTTP 1.1.
+            response.setHeader('Pragma', 'no-cache') // HTTP 1.0.
+            response.setHeader('Expires', '0') // Proxies.
+            response.setHeader('Access-Control-Allow-Origin', '*') // Allows to access data from other domains.
+
+            if (content !== undefined) {
+                response.writeHead(200, { 'Content-Type': 'text/html' })
+                response.write(content)
+            } else {
+                response.writeHead(404, { 'Content-Type': 'text/html' })
+                response.write('The specified key does not exist.')
+            }
+            response.end('\n')
+        } catch (err) {
+            returnEmptyArray(response)
+        }
+    }
+
+    function respondWithImage(fileName, response) {
+        if (CONSOLE_LOG === true) { console.log('[INFO] webServer -> respondWithImage -> Entering function.') }
+
+        let fs = require('fs')
+        try {
+            fs.readFile(fileName, onFileRead)
+
+            function onFileRead(err, file) {
+                if (CONSOLE_LOG === true) { console.log('[INFO] webServer -> respondWithImage -> onFileRead -> Entering function.') }
+
+                try {
+                    response.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate') // HTTP 1.1.
+                    response.setHeader('Pragma', 'no-cache') // HTTP 1.0.
+                    response.setHeader('Expires', '0') // Proxies.
+                    response.setHeader('Access-Control-Allow-Origin', '*') // Allows to access data from other domains.
+
+                    response.writeHead(200, { 'Content-Type': 'image/png' })
+                    response.end(file, 'binary')
+                } catch (err) {
+                    console.log('[ERROR] webServer -> respondWithImage -> onFileRead -> File Not Found: ' + fileName + ' or Error = ' + err.stack)
+                }
+            }
+        } catch (err) {
+            console.log('[ERROR] webServer -> respondWithImage -> err = ' + err.stack)
+        }
+    }
+
+    function returnEmptyArray(response) {
+        try {
+            if (CONSOLE_LOG === true) { console.log('[INFO] webServer -> respondWithFile -> returnEmptyArray -> Entering function.') }
+
+            response.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate') // HTTP 1.1.
+            response.setHeader('Pragma', 'no-cache') // HTTP 1.0.
+            response.setHeader('Expires', '0') // Proxies.
+
+            response.writeHead(200, { 'Content-Type': 'text/html' })
+            response.write('[]')
+            response.end('\n')
+        } catch (err) {
+            console.log('[ERROR] webServer -> returnEmptyArray -> err.message ' + err.message)
+        }
+    }
+}
\ No newline at end of file
diff --git a/WebServer/.env b/WebServer/.env
deleted file mode 100644
index 4d80c1f6b..000000000
--- a/WebServer/.env
+++ /dev/null
@@ -1,26 +0,0 @@
-#PORT NUMBER: If this port is already in use by a different app, please pick a new number between 1 and 50000.
-WEB_SERVER_PORT=9999
-
-#Log options
-CONSOLE_LOG=false
-CONSOLE_ERROR_LOG=true
-LOG_FILE_CONTENT=false
-
-# Server commands
-REINITIALIZE_COMMAND=sdnacGYGdw756dnxasxbGGGjsdbd5576576gfdsxgvbnFFF
-
-PATH_TO_CANVAS_APP=../CanvasApp
-PATH_TO_FILES_COMPONENT=../Files-Component/src
-
-GATEWAY_ENDPOINT=https://demo-api-dev.superalgos.org/graphql
-
-INTER_PROCESS_FILES_PATH=../Inter-Process-Files
-STORAGE_PATH=../Data-Storage
-PLOTTERS_PATH=../Legacy-Code
-DATA_MINES_PATH=../Data-Mines
-TRADING_SYSTEMS_PATH=../Trading-Systems
-SUPER_SCRIPTS_PATH=../Super-Scripts
-PATH_TO_WEB_SERVER =./
-APP_SCHEMA_PATH=../
-WORKSPACE_PATH=../
-
diff --git a/WebServer/gif.worker.js b/WebServer/gif.worker.js
deleted file mode 100644
index 53db504dd..000000000
--- a/WebServer/gif.worker.js
+++ /dev/null
@@ -1,3 +0,0 @@
-// gif.js 0.2.0 - https://github.com/jnordberg/gif.js
-(function (f) { if (typeof exports === "object" && typeof module !== "undefined") { module.exports = f() } else if (typeof define === "function" && define.amd) { define([], f) } else { var g; if (typeof window !== "undefined") { g = window } else if (typeof global !== "undefined") { g = global } else if (typeof self !== "undefined") { g = self } else { g = this } g.GIF = f() } })(function () { var define, module, exports; return function e(t, n, r) { function s(o, u) { if (!n[o]) { if (!t[o]) { var a = typeof require == "function" && require; if (!u && a) return a(o, !0); if (i) return i(o, !0); var f = new Error("Cannot find module '" + o + "'"); throw f.code = "MODULE_NOT_FOUND", f } var l = n[o] = { exports: {} }; t[o][0].call(l.exports, function (e) { var n = t[o][1][e]; return s(n ? n : e) }, l, l.exports, e, t, n, r) } return n[o].exports } var i = typeof require == "function" && require; for (var o = 0; o < r.length; o++)s(r[o]); return s }({ 1: [function (require, module, exports) { function EventEmitter() { this._events = this._events || {}; this._maxListeners = this._maxListeners || undefined } module.exports = EventEmitter; EventEmitter.EventEmitter = EventEmitter; EventEmitter.prototype._events = undefined; EventEmitter.prototype._maxListeners = undefined; EventEmitter.defaultMaxListeners = 10; EventEmitter.prototype.setMaxListeners = function (n) { if (!isNumber(n) || n < 0 || isNaN(n)) throw TypeError("n must be a positive number"); this._maxListeners = n; return this }; EventEmitter.prototype.emit = function (type) { var er, handler, len, args, i, listeners; if (!this._events) this._events = {}; if (type === "error") { if (!this._events.error || isObject(this._events.error) && !this._events.error.length) { er = arguments[1]; if (er instanceof Error) { throw er } else { var err = new Error('Uncaught, unspecified "error" event. (' + er + ")"); err.context = er; throw err } } } handler = this._events[type]; if (isUndefined(handler)) return false; if (isFunction(handler)) { switch (arguments.length) { case 1: handler.call(this); break; case 2: handler.call(this, arguments[1]); break; case 3: handler.call(this, arguments[1], arguments[2]); break; default: args = Array.prototype.slice.call(arguments, 1); handler.apply(this, args) } } else if (isObject(handler)) { args = Array.prototype.slice.call(arguments, 1); listeners = handler.slice(); len = listeners.length; for (i = 0; i < len; i++)listeners[i].apply(this, args) } return true }; EventEmitter.prototype.addListener = function (type, listener) { var m; if (!isFunction(listener)) throw TypeError("listener must be a function"); if (!this._events) this._events = {}; if (this._events.newListener) this.emit("newListener", type, isFunction(listener.listener) ? listener.listener : listener); if (!this._events[type]) this._events[type] = listener; else if (isObject(this._events[type])) this._events[type].push(listener); else this._events[type] = [this._events[type], listener]; if (isObject(this._events[type]) && !this._events[type].warned) { if (!isUndefined(this._maxListeners)) { m = this._maxListeners } else { m = EventEmitter.defaultMaxListeners } if (m && m > 0 && this._events[type].length > m) { this._events[type].warned = true; console.error("(node) warning: possible EventEmitter memory " + "leak detected. %d listeners added. " + "Use emitter.setMaxListeners() to increase limit.", this._events[type].length); if (typeof console.trace === "function") { console.trace() } } } return this }; EventEmitter.prototype.on = EventEmitter.prototype.addListener; EventEmitter.prototype.once = function (type, listener) { if (!isFunction(listener)) throw TypeError("listener must be a function"); var fired = false; function g() { this.removeListener(type, g); if (!fired) { fired = true; listener.apply(this, arguments) } } g.listener = listener; this.on(type, g); return this }; EventEmitter.prototype.removeListener = function (type, listener) { var list, position, length, i; if (!isFunction(listener)) throw TypeError("listener must be a function"); if (!this._events || !this._events[type]) return this; list = this._events[type]; length = list.length; position = -1; if (list === listener || isFunction(list.listener) && list.listener === listener) { delete this._events[type]; if (this._events.removeListener) this.emit("removeListener", type, listener) } else if (isObject(list)) { for (i = length; i-- > 0;) { if (list[i] === listener || list[i].listener && list[i].listener === listener) { position = i; break } } if (position < 0) return this; if (list.length === 1) { list.length = 0; delete this._events[type] } else { list.splice(position, 1) } if (this._events.removeListener) this.emit("removeListener", type, listener) } return this }; EventEmitter.prototype.removeAllListeners = function (type) { var key, listeners; if (!this._events) return this; if (!this._events.removeListener) { if (arguments.length === 0) this._events = {}; else if (this._events[type]) delete this._events[type]; return this } if (arguments.length === 0) { for (key in this._events) { if (key === "removeListener") continue; this.removeAllListeners(key) } this.removeAllListeners("removeListener"); this._events = {}; return this } listeners = this._events[type]; if (isFunction(listeners)) { this.removeListener(type, listeners) } else if (listeners) { while (listeners.length) this.removeListener(type, listeners[listeners.length - 1]) } delete this._events[type]; return this }; EventEmitter.prototype.listeners = function (type) { var ret; if (!this._events || !this._events[type]) ret = []; else if (isFunction(this._events[type])) ret = [this._events[type]]; else ret = this._events[type].slice(); return ret }; EventEmitter.prototype.listenerCount = function (type) { if (this._events) { var evlistener = this._events[type]; if (isFunction(evlistener)) return 1; else if (evlistener) return evlistener.length } return 0 }; EventEmitter.listenerCount = function (emitter, type) { return emitter.listenerCount(type) }; function isFunction(arg) { return typeof arg === "function" } function isNumber(arg) { return typeof arg === "number" } function isObject(arg) { return typeof arg === "object" && arg !== null } function isUndefined(arg) { return arg === void 0 } }, {}], 2: [function (require, module, exports) { var UA, browser, mode, platform, ua; ua = navigator.userAgent.toLowerCase(); platform = navigator.platform.toLowerCase(); UA = ua.match(/(opera|ie|firefox|chrome|version)[\s\/:]([\w\d\.]+)?.*?(safari|version[\s\/:]([\w\d\.]+)|$)/) || [null, "unknown", 0]; mode = UA[1] === "ie" && document.documentMode; browser = { name: UA[1] === "version" ? UA[3] : UA[1], version: mode || parseFloat(UA[1] === "opera" && UA[4] ? UA[4] : UA[2]), platform: { name: ua.match(/ip(?:ad|od|hone)/) ? "ios" : (ua.match(/(?:webos|android)/) || platform.match(/mac|win|linux/) || ["other"])[0] } }; browser[browser.name] = true; browser[browser.name + parseInt(browser.version, 10)] = true; browser.platform[browser.platform.name] = true; module.exports = browser }, {}], 3: [function (require, module, exports) { var EventEmitter, GIF, browser, extend = function (child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key] } function ctor() { this.constructor = child } ctor.prototype = parent.prototype; child.prototype = new ctor; child.__super__ = parent.prototype; return child }, hasProp = {}.hasOwnProperty, indexOf = [].indexOf || function (item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i } return -1 }, slice = [].slice; EventEmitter = require("events").EventEmitter; browser = require("./browser.coffee"); GIF = function (superClass) { var defaults, frameDefaults; extend(GIF, superClass); defaults = { workerScript: "gif.worker.js", workers: 2, repeat: 0, background: "#fff", quality: 10, width: null, height: null, transparent: null, debug: false, dither: false }; frameDefaults = { delay: 500, copy: false }; function GIF(options) { var base, key, value; this.running = false; this.options = {}; this.frames = []; this.freeWorkers = []; this.activeWorkers = []; this.setOptions(options); for (key in defaults) { value = defaults[key]; if ((base = this.options)[key] == null) { base[key] = value } } } GIF.prototype.setOption = function (key, value) { this.options[key] = value; if (this._canvas != null && (key === "width" || key === "height")) { return this._canvas[key] = value } }; GIF.prototype.setOptions = function (options) { var key, results, value; results = []; for (key in options) { if (!hasProp.call(options, key)) continue; value = options[key]; results.push(this.setOption(key, value)) } return results }; GIF.prototype.addFrame = function (image, options) { var frame, key; if (options == null) { options = {} } frame = {}; frame.transparent = this.options.transparent; for (key in frameDefaults) { frame[key] = options[key] || frameDefaults[key] } if (this.options.width == null) { this.setOption("width", image.width) } if (this.options.height == null) { this.setOption("height", image.height) } if (typeof ImageData !== "undefined" && ImageData !== null && image instanceof ImageData) { frame.data = image.data } else if (typeof CanvasRenderingContext2D !== "undefined" && CanvasRenderingContext2D !== null && image instanceof CanvasRenderingContext2D || typeof WebGLRenderingContext !== "undefined" && WebGLRenderingContext !== null && image instanceof WebGLRenderingContext) { if (options.copy) { frame.data = this.getContextData(image) } else { frame.context = image } } else if (image.childNodes != null) { if (options.copy) { frame.data = this.getImageData(image) } else { frame.image = image } } else { throw new Error("Invalid image") } return this.frames.push(frame) }; GIF.prototype.render = function () { var i, j, numWorkers, ref; if (this.running) { throw new Error("Already running") } if (this.options.width == null || this.options.height == null) { throw new Error("Width and height must be set prior to rendering") } this.running = true; this.nextFrame = 0; this.finishedFrames = 0; this.imageParts = function () { var j, ref, results; results = []; for (i = j = 0, ref = this.frames.length; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) { results.push(null) } return results }.call(this); numWorkers = this.spawnWorkers(); if (this.options.globalPalette === true) { this.renderNextFrame() } else { for (i = j = 0, ref = numWorkers; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) { this.renderNextFrame() } } this.emit("start"); return this.emit("progress", 0) }; GIF.prototype.abort = function () { var worker; while (true) { worker = this.activeWorkers.shift(); if (worker == null) { break } this.log("killing active worker"); worker.terminate() } this.running = false; return this.emit("abort") }; GIF.prototype.spawnWorkers = function () { var j, numWorkers, ref, results; numWorkers = Math.min(this.options.workers, this.frames.length); (function () { results = []; for (var j = ref = this.freeWorkers.length; ref <= numWorkers ? j < numWorkers : j > numWorkers; ref <= numWorkers ? j++ : j--) { results.push(j) } return results }).apply(this).forEach(function (_this) { return function (i) { var worker; _this.log("spawning worker " + i); worker = new Worker(_this.options.workerScript); worker.onmessage = function (event) { _this.activeWorkers.splice(_this.activeWorkers.indexOf(worker), 1); _this.freeWorkers.push(worker); return _this.frameFinished(event.data) }; return _this.freeWorkers.push(worker) } }(this)); return numWorkers }; GIF.prototype.frameFinished = function (frame) { var i, j, ref; this.log("frame " + frame.index + " finished - " + this.activeWorkers.length + " active"); this.finishedFrames++; this.emit("progress", this.finishedFrames / this.frames.length); this.imageParts[frame.index] = frame; if (this.options.globalPalette === true) { this.options.globalPalette = frame.globalPalette; this.log("global palette analyzed"); if (this.frames.length > 2) { for (i = j = 1, ref = this.freeWorkers.length; 1 <= ref ? j < ref : j > ref; i = 1 <= ref ? ++j : --j) { this.renderNextFrame() } } } if (indexOf.call(this.imageParts, null) >= 0) { return this.renderNextFrame() } else { return this.finishRendering() } }; GIF.prototype.finishRendering = function () { var data, frame, i, image, j, k, l, len, len1, len2, len3, offset, page, ref, ref1, ref2; len = 0; ref = this.imageParts; for (j = 0, len1 = ref.length; j < len1; j++) { frame = ref[j]; len += (frame.data.length - 1) * frame.pageSize + frame.cursor } len += frame.pageSize - frame.cursor; this.log("rendering finished - filesize " + Math.round(len / 1e3) + "kb"); data = new Uint8Array(len); offset = 0; ref1 = this.imageParts; for (k = 0, len2 = ref1.length; k < len2; k++) { frame = ref1[k]; ref2 = frame.data; for (i = l = 0, len3 = ref2.length; l < len3; i = ++l) { page = ref2[i]; data.set(page, offset); if (i === frame.data.length - 1) { offset += frame.cursor } else { offset += frame.pageSize } } } image = new Blob([data], { type: "image/gif" }); return this.emit("finished", image, data) }; GIF.prototype.renderNextFrame = function () { var frame, task, worker; if (this.freeWorkers.length === 0) { throw new Error("No free workers") } if (this.nextFrame >= this.frames.length) { return } frame = this.frames[this.nextFrame++]; worker = this.freeWorkers.shift(); task = this.getTask(frame); this.log("starting frame " + (task.index + 1) + " of " + this.frames.length); this.activeWorkers.push(worker); return worker.postMessage(task) }; GIF.prototype.getContextData = function (ctx) { return ctx.getImageData(0, 0, this.options.width, this.options.height).data }; GIF.prototype.getImageData = function (image) { var ctx; if (this._canvas == null) { this._canvas = document.createElement("canvas"); this._canvas.width = this.options.width; this._canvas.height = this.options.height } ctx = this._canvas.getContext("2d"); ctx.setFill = this.options.background; ctx.fillRect(0, 0, this.options.width, this.options.height); ctx.drawImage(image, 0, 0); return this.getContextData(ctx) }; GIF.prototype.getTask = function (frame) { var index, task; index = this.frames.indexOf(frame); task = { index: index, last: index === this.frames.length - 1, delay: frame.delay, transparent: frame.transparent, width: this.options.width, height: this.options.height, quality: this.options.quality, dither: this.options.dither, globalPalette: this.options.globalPalette, repeat: this.options.repeat, canTransfer: browser.name === "chrome" }; if (frame.data != null) { task.data = frame.data } else if (frame.context != null) { task.data = this.getContextData(frame.context) } else if (frame.image != null) { task.data = this.getImageData(frame.image) } else { throw new Error("Invalid frame") } return task }; GIF.prototype.log = function () { var args; args = 1 <= arguments.length ? slice.call(arguments, 0) : []; if (!this.options.debug) { return } return console.log.apply(console, args) }; return GIF }(EventEmitter); module.exports = GIF }, { "./browser.coffee": 2, events: 1 }] }, {}, [3])(3) });
-//# sourceMappingURL=gif.js.map
\ No newline at end of file
diff --git a/WebServer/node_modules/axios/dist/axios.js b/WebServer/node_modules/axios/dist/axios.js
deleted file mode 100644
index 5cef419c2..000000000
--- a/WebServer/node_modules/axios/dist/axios.js
+++ /dev/null
@@ -1,1668 +0,0 @@
-/* axios v0.19.0 | (c) 2019 by Matt Zabriskie */
-(function webpackUniversalModuleDefinition(root, factory) {
-	if(typeof exports === 'object' && typeof module === 'object')
-		module.exports = factory();
-	else if(typeof define === 'function' && define.amd)
-		define([], factory);
-	else if(typeof exports === 'object')
-		exports["axios"] = factory();
-	else
-		root["axios"] = factory();
-})(this, function() {
-return /******/ (function(modules) { // webpackBootstrap
-/******/ 	// The module cache
-/******/ 	var installedModules = {};
-/******/
-/******/ 	// The require function
-/******/ 	function __webpack_require__(moduleId) {
-/******/
-/******/ 		// Check if module is in cache
-/******/ 		if(installedModules[moduleId])
-/******/ 			return installedModules[moduleId].exports;
-/******/
-/******/ 		// Create a new module (and put it into the cache)
-/******/ 		var module = installedModules[moduleId] = {
-/******/ 			exports: {},
-/******/ 			id: moduleId,
-/******/ 			loaded: false
-/******/ 		};
-/******/
-/******/ 		// Execute the module function
-/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
-/******/
-/******/ 		// Flag the module as loaded
-/******/ 		module.loaded = true;
-/******/
-/******/ 		// Return the exports of the module
-/******/ 		return module.exports;
-/******/ 	}
-/******/
-/******/
-/******/ 	// expose the modules object (__webpack_modules__)
-/******/ 	__webpack_require__.m = modules;
-/******/
-/******/ 	// expose the module cache
-/******/ 	__webpack_require__.c = installedModules;
-/******/
-/******/ 	// __webpack_public_path__
-/******/ 	__webpack_require__.p = "";
-/******/
-/******/ 	// Load entry module and return exports
-/******/ 	return __webpack_require__(0);
-/******/ })
-/************************************************************************/
-/******/ ([
-/* 0 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = __webpack_require__(1);
-
-/***/ }),
-/* 1 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	var bind = __webpack_require__(3);
-	var Axios = __webpack_require__(5);
-	var mergeConfig = __webpack_require__(22);
-	var defaults = __webpack_require__(11);
-	
-	/**
-	 * Create an instance of Axios
-	 *
-	 * @param {Object} defaultConfig The default config for the instance
-	 * @return {Axios} A new instance of Axios
-	 */
-	function createInstance(defaultConfig) {
-	  var context = new Axios(defaultConfig);
-	  var instance = bind(Axios.prototype.request, context);
-	
-	  // Copy axios.prototype to instance
-	  utils.extend(instance, Axios.prototype, context);
-	
-	  // Copy context to instance
-	  utils.extend(instance, context);
-	
-	  return instance;
-	}
-	
-	// Create the default instance to be exported
-	var axios = createInstance(defaults);
-	
-	// Expose Axios class to allow class inheritance
-	axios.Axios = Axios;
-	
-	// Factory for creating new instances
-	axios.create = function create(instanceConfig) {
-	  return createInstance(mergeConfig(axios.defaults, instanceConfig));
-	};
-	
-	// Expose Cancel & CancelToken
-	axios.Cancel = __webpack_require__(23);
-	axios.CancelToken = __webpack_require__(24);
-	axios.isCancel = __webpack_require__(10);
-	
-	// Expose all/spread
-	axios.all = function all(promises) {
-	  return Promise.all(promises);
-	};
-	axios.spread = __webpack_require__(25);
-	
-	module.exports = axios;
-	
-	// Allow use of default import syntax in TypeScript
-	module.exports.default = axios;
-
-
-/***/ }),
-/* 2 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var bind = __webpack_require__(3);
-	var isBuffer = __webpack_require__(4);
-	
-	/*global toString:true*/
-	
-	// utils is a library of generic helper functions non-specific to axios
-	
-	var toString = Object.prototype.toString;
-	
-	/**
-	 * Determine if a value is an Array
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is an Array, otherwise false
-	 */
-	function isArray(val) {
-	  return toString.call(val) === '[object Array]';
-	}
-	
-	/**
-	 * Determine if a value is an ArrayBuffer
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is an ArrayBuffer, otherwise false
-	 */
-	function isArrayBuffer(val) {
-	  return toString.call(val) === '[object ArrayBuffer]';
-	}
-	
-	/**
-	 * Determine if a value is a FormData
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is an FormData, otherwise false
-	 */
-	function isFormData(val) {
-	  return (typeof FormData !== 'undefined') && (val instanceof FormData);
-	}
-	
-	/**
-	 * Determine if a value is a view on an ArrayBuffer
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
-	 */
-	function isArrayBufferView(val) {
-	  var result;
-	  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
-	    result = ArrayBuffer.isView(val);
-	  } else {
-	    result = (val) && (val.buffer) && (val.buffer instanceof ArrayBuffer);
-	  }
-	  return result;
-	}
-	
-	/**
-	 * Determine if a value is a String
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is a String, otherwise false
-	 */
-	function isString(val) {
-	  return typeof val === 'string';
-	}
-	
-	/**
-	 * Determine if a value is a Number
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is a Number, otherwise false
-	 */
-	function isNumber(val) {
-	  return typeof val === 'number';
-	}
-	
-	/**
-	 * Determine if a value is undefined
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if the value is undefined, otherwise false
-	 */
-	function isUndefined(val) {
-	  return typeof val === 'undefined';
-	}
-	
-	/**
-	 * Determine if a value is an Object
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is an Object, otherwise false
-	 */
-	function isObject(val) {
-	  return val !== null && typeof val === 'object';
-	}
-	
-	/**
-	 * Determine if a value is a Date
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is a Date, otherwise false
-	 */
-	function isDate(val) {
-	  return toString.call(val) === '[object Date]';
-	}
-	
-	/**
-	 * Determine if a value is a File
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is a File, otherwise false
-	 */
-	function isFile(val) {
-	  return toString.call(val) === '[object File]';
-	}
-	
-	/**
-	 * Determine if a value is a Blob
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is a Blob, otherwise false
-	 */
-	function isBlob(val) {
-	  return toString.call(val) === '[object Blob]';
-	}
-	
-	/**
-	 * Determine if a value is a Function
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is a Function, otherwise false
-	 */
-	function isFunction(val) {
-	  return toString.call(val) === '[object Function]';
-	}
-	
-	/**
-	 * Determine if a value is a Stream
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is a Stream, otherwise false
-	 */
-	function isStream(val) {
-	  return isObject(val) && isFunction(val.pipe);
-	}
-	
-	/**
-	 * Determine if a value is a URLSearchParams object
-	 *
-	 * @param {Object} val The value to test
-	 * @returns {boolean} True if value is a URLSearchParams object, otherwise false
-	 */
-	function isURLSearchParams(val) {
-	  return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams;
-	}
-	
-	/**
-	 * Trim excess whitespace off the beginning and end of a string
-	 *
-	 * @param {String} str The String to trim
-	 * @returns {String} The String freed of excess whitespace
-	 */
-	function trim(str) {
-	  return str.replace(/^\s*/, '').replace(/\s*$/, '');
-	}
-	
-	/**
-	 * Determine if we're running in a standard browser environment
-	 *
-	 * This allows axios to run in a web worker, and react-native.
-	 * Both environments support XMLHttpRequest, but not fully standard globals.
-	 *
-	 * web workers:
-	 *  typeof window -> undefined
-	 *  typeof document -> undefined
-	 *
-	 * react-native:
-	 *  navigator.product -> 'ReactNative'
-	 * nativescript
-	 *  navigator.product -> 'NativeScript' or 'NS'
-	 */
-	function isStandardBrowserEnv() {
-	  if (typeof navigator !== 'undefined' && (navigator.product === 'ReactNative' ||
-	                                           navigator.product === 'NativeScript' ||
-	                                           navigator.product === 'NS')) {
-	    return false;
-	  }
-	  return (
-	    typeof window !== 'undefined' &&
-	    typeof document !== 'undefined'
-	  );
-	}
-	
-	/**
-	 * Iterate over an Array or an Object invoking a function for each item.
-	 *
-	 * If `obj` is an Array callback will be called passing
-	 * the value, index, and complete array for each item.
-	 *
-	 * If 'obj' is an Object callback will be called passing
-	 * the value, key, and complete object for each property.
-	 *
-	 * @param {Object|Array} obj The object to iterate
-	 * @param {Function} fn The callback to invoke for each item
-	 */
-	function forEach(obj, fn) {
-	  // Don't bother if no value provided
-	  if (obj === null || typeof obj === 'undefined') {
-	    return;
-	  }
-	
-	  // Force an array if not already something iterable
-	  if (typeof obj !== 'object') {
-	    /*eslint no-param-reassign:0*/
-	    obj = [obj];
-	  }
-	
-	  if (isArray(obj)) {
-	    // Iterate over array values
-	    for (var i = 0, l = obj.length; i < l; i++) {
-	      fn.call(null, obj[i], i, obj);
-	    }
-	  } else {
-	    // Iterate over object keys
-	    for (var key in obj) {
-	      if (Object.prototype.hasOwnProperty.call(obj, key)) {
-	        fn.call(null, obj[key], key, obj);
-	      }
-	    }
-	  }
-	}
-	
-	/**
-	 * Accepts varargs expecting each argument to be an object, then
-	 * immutably merges the properties of each object and returns result.
-	 *
-	 * When multiple objects contain the same key the later object in
-	 * the arguments list will take precedence.
-	 *
-	 * Example:
-	 *
-	 * ```js
-	 * var result = merge({foo: 123}, {foo: 456});
-	 * console.log(result.foo); // outputs 456
-	 * ```
-	 *
-	 * @param {Object} obj1 Object to merge
-	 * @returns {Object} Result of all merge properties
-	 */
-	function merge(/* obj1, obj2, obj3, ... */) {
-	  var result = {};
-	  function assignValue(val, key) {
-	    if (typeof result[key] === 'object' && typeof val === 'object') {
-	      result[key] = merge(result[key], val);
-	    } else {
-	      result[key] = val;
-	    }
-	  }
-	
-	  for (var i = 0, l = arguments.length; i < l; i++) {
-	    forEach(arguments[i], assignValue);
-	  }
-	  return result;
-	}
-	
-	/**
-	 * Function equal to merge with the difference being that no reference
-	 * to original objects is kept.
-	 *
-	 * @see merge
-	 * @param {Object} obj1 Object to merge
-	 * @returns {Object} Result of all merge properties
-	 */
-	function deepMerge(/* obj1, obj2, obj3, ... */) {
-	  var result = {};
-	  function assignValue(val, key) {
-	    if (typeof result[key] === 'object' && typeof val === 'object') {
-	      result[key] = deepMerge(result[key], val);
-	    } else if (typeof val === 'object') {
-	      result[key] = deepMerge({}, val);
-	    } else {
-	      result[key] = val;
-	    }
-	  }
-	
-	  for (var i = 0, l = arguments.length; i < l; i++) {
-	    forEach(arguments[i], assignValue);
-	  }
-	  return result;
-	}
-	
-	/**
-	 * Extends object a by mutably adding to it the properties of object b.
-	 *
-	 * @param {Object} a The object to be extended
-	 * @param {Object} b The object to copy properties from
-	 * @param {Object} thisArg The object to bind function to
-	 * @return {Object} The resulting value of object a
-	 */
-	function extend(a, b, thisArg) {
-	  forEach(b, function assignValue(val, key) {
-	    if (thisArg && typeof val === 'function') {
-	      a[key] = bind(val, thisArg);
-	    } else {
-	      a[key] = val;
-	    }
-	  });
-	  return a;
-	}
-	
-	module.exports = {
-	  isArray: isArray,
-	  isArrayBuffer: isArrayBuffer,
-	  isBuffer: isBuffer,
-	  isFormData: isFormData,
-	  isArrayBufferView: isArrayBufferView,
-	  isString: isString,
-	  isNumber: isNumber,
-	  isObject: isObject,
-	  isUndefined: isUndefined,
-	  isDate: isDate,
-	  isFile: isFile,
-	  isBlob: isBlob,
-	  isFunction: isFunction,
-	  isStream: isStream,
-	  isURLSearchParams: isURLSearchParams,
-	  isStandardBrowserEnv: isStandardBrowserEnv,
-	  forEach: forEach,
-	  merge: merge,
-	  deepMerge: deepMerge,
-	  extend: extend,
-	  trim: trim
-	};
-
-
-/***/ }),
-/* 3 */
-/***/ (function(module, exports) {
-
-	'use strict';
-	
-	module.exports = function bind(fn, thisArg) {
-	  return function wrap() {
-	    var args = new Array(arguments.length);
-	    for (var i = 0; i < args.length; i++) {
-	      args[i] = arguments[i];
-	    }
-	    return fn.apply(thisArg, args);
-	  };
-	};
-
-
-/***/ }),
-/* 4 */
-/***/ (function(module, exports) {
-
-	/*!
-	 * Determine if an object is a Buffer
-	 *
-	 * @author   Feross Aboukhadijeh <https://feross.org>
-	 * @license  MIT
-	 */
-	
-	module.exports = function isBuffer (obj) {
-	  return obj != null && obj.constructor != null &&
-	    typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
-	}
-
-
-/***/ }),
-/* 5 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	var buildURL = __webpack_require__(6);
-	var InterceptorManager = __webpack_require__(7);
-	var dispatchRequest = __webpack_require__(8);
-	var mergeConfig = __webpack_require__(22);
-	
-	/**
-	 * Create a new instance of Axios
-	 *
-	 * @param {Object} instanceConfig The default config for the instance
-	 */
-	function Axios(instanceConfig) {
-	  this.defaults = instanceConfig;
-	  this.interceptors = {
-	    request: new InterceptorManager(),
-	    response: new InterceptorManager()
-	  };
-	}
-	
-	/**
-	 * Dispatch a request
-	 *
-	 * @param {Object} config The config specific for this request (merged with this.defaults)
-	 */
-	Axios.prototype.request = function request(config) {
-	  /*eslint no-param-reassign:0*/
-	  // Allow for axios('example/url'[, config]) a la fetch API
-	  if (typeof config === 'string') {
-	    config = arguments[1] || {};
-	    config.url = arguments[0];
-	  } else {
-	    config = config || {};
-	  }
-	
-	  config = mergeConfig(this.defaults, config);
-	  config.method = config.method ? config.method.toLowerCase() : 'get';
-	
-	  // Hook up interceptors middleware
-	  var chain = [dispatchRequest, undefined];
-	  var promise = Promise.resolve(config);
-	
-	  this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
-	    chain.unshift(interceptor.fulfilled, interceptor.rejected);
-	  });
-	
-	  this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
-	    chain.push(interceptor.fulfilled, interceptor.rejected);
-	  });
-	
-	  while (chain.length) {
-	    promise = promise.then(chain.shift(), chain.shift());
-	  }
-	
-	  return promise;
-	};
-	
-	Axios.prototype.getUri = function getUri(config) {
-	  config = mergeConfig(this.defaults, config);
-	  return buildURL(config.url, config.params, config.paramsSerializer).replace(/^\?/, '');
-	};
-	
-	// Provide aliases for supported request methods
-	utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
-	  /*eslint func-names:0*/
-	  Axios.prototype[method] = function(url, config) {
-	    return this.request(utils.merge(config || {}, {
-	      method: method,
-	      url: url
-	    }));
-	  };
-	});
-	
-	utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
-	  /*eslint func-names:0*/
-	  Axios.prototype[method] = function(url, data, config) {
-	    return this.request(utils.merge(config || {}, {
-	      method: method,
-	      url: url,
-	      data: data
-	    }));
-	  };
-	});
-	
-	module.exports = Axios;
-
-
-/***/ }),
-/* 6 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	
-	function encode(val) {
-	  return encodeURIComponent(val).
-	    replace(/%40/gi, '@').
-	    replace(/%3A/gi, ':').
-	    replace(/%24/g, '$').
-	    replace(/%2C/gi, ',').
-	    replace(/%20/g, '+').
-	    replace(/%5B/gi, '[').
-	    replace(/%5D/gi, ']');
-	}
-	
-	/**
-	 * Build a URL by appending params to the end
-	 *
-	 * @param {string} url The base of the url (e.g., http://www.google.com)
-	 * @param {object} [params] The params to be appended
-	 * @returns {string} The formatted url
-	 */
-	module.exports = function buildURL(url, params, paramsSerializer) {
-	  /*eslint no-param-reassign:0*/
-	  if (!params) {
-	    return url;
-	  }
-	
-	  var serializedParams;
-	  if (paramsSerializer) {
-	    serializedParams = paramsSerializer(params);
-	  } else if (utils.isURLSearchParams(params)) {
-	    serializedParams = params.toString();
-	  } else {
-	    var parts = [];
-	
-	    utils.forEach(params, function serialize(val, key) {
-	      if (val === null || typeof val === 'undefined') {
-	        return;
-	      }
-	
-	      if (utils.isArray(val)) {
-	        key = key + '[]';
-	      } else {
-	        val = [val];
-	      }
-	
-	      utils.forEach(val, function parseValue(v) {
-	        if (utils.isDate(v)) {
-	          v = v.toISOString();
-	        } else if (utils.isObject(v)) {
-	          v = JSON.stringify(v);
-	        }
-	        parts.push(encode(key) + '=' + encode(v));
-	      });
-	    });
-	
-	    serializedParams = parts.join('&');
-	  }
-	
-	  if (serializedParams) {
-	    var hashmarkIndex = url.indexOf('#');
-	    if (hashmarkIndex !== -1) {
-	      url = url.slice(0, hashmarkIndex);
-	    }
-	
-	    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
-	  }
-	
-	  return url;
-	};
-
-
-/***/ }),
-/* 7 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	
-	function InterceptorManager() {
-	  this.handlers = [];
-	}
-	
-	/**
-	 * Add a new interceptor to the stack
-	 *
-	 * @param {Function} fulfilled The function to handle `then` for a `Promise`
-	 * @param {Function} rejected The function to handle `reject` for a `Promise`
-	 *
-	 * @return {Number} An ID used to remove interceptor later
-	 */
-	InterceptorManager.prototype.use = function use(fulfilled, rejected) {
-	  this.handlers.push({
-	    fulfilled: fulfilled,
-	    rejected: rejected
-	  });
-	  return this.handlers.length - 1;
-	};
-	
-	/**
-	 * Remove an interceptor from the stack
-	 *
-	 * @param {Number} id The ID that was returned by `use`
-	 */
-	InterceptorManager.prototype.eject = function eject(id) {
-	  if (this.handlers[id]) {
-	    this.handlers[id] = null;
-	  }
-	};
-	
-	/**
-	 * Iterate over all the registered interceptors
-	 *
-	 * This method is particularly useful for skipping over any
-	 * interceptors that may have become `null` calling `eject`.
-	 *
-	 * @param {Function} fn The function to call for each interceptor
-	 */
-	InterceptorManager.prototype.forEach = function forEach(fn) {
-	  utils.forEach(this.handlers, function forEachHandler(h) {
-	    if (h !== null) {
-	      fn(h);
-	    }
-	  });
-	};
-	
-	module.exports = InterceptorManager;
-
-
-/***/ }),
-/* 8 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	var transformData = __webpack_require__(9);
-	var isCancel = __webpack_require__(10);
-	var defaults = __webpack_require__(11);
-	var isAbsoluteURL = __webpack_require__(20);
-	var combineURLs = __webpack_require__(21);
-	
-	/**
-	 * Throws a `Cancel` if cancellation has been requested.
-	 */
-	function throwIfCancellationRequested(config) {
-	  if (config.cancelToken) {
-	    config.cancelToken.throwIfRequested();
-	  }
-	}
-	
-	/**
-	 * Dispatch a request to the server using the configured adapter.
-	 *
-	 * @param {object} config The config that is to be used for the request
-	 * @returns {Promise} The Promise to be fulfilled
-	 */
-	module.exports = function dispatchRequest(config) {
-	  throwIfCancellationRequested(config);
-	
-	  // Support baseURL config
-	  if (config.baseURL && !isAbsoluteURL(config.url)) {
-	    config.url = combineURLs(config.baseURL, config.url);
-	  }
-	
-	  // Ensure headers exist
-	  config.headers = config.headers || {};
-	
-	  // Transform request data
-	  config.data = transformData(
-	    config.data,
-	    config.headers,
-	    config.transformRequest
-	  );
-	
-	  // Flatten headers
-	  config.headers = utils.merge(
-	    config.headers.common || {},
-	    config.headers[config.method] || {},
-	    config.headers || {}
-	  );
-	
-	  utils.forEach(
-	    ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
-	    function cleanHeaderConfig(method) {
-	      delete config.headers[method];
-	    }
-	  );
-	
-	  var adapter = config.adapter || defaults.adapter;
-	
-	  return adapter(config).then(function onAdapterResolution(response) {
-	    throwIfCancellationRequested(config);
-	
-	    // Transform response data
-	    response.data = transformData(
-	      response.data,
-	      response.headers,
-	      config.transformResponse
-	    );
-	
-	    return response;
-	  }, function onAdapterRejection(reason) {
-	    if (!isCancel(reason)) {
-	      throwIfCancellationRequested(config);
-	
-	      // Transform response data
-	      if (reason && reason.response) {
-	        reason.response.data = transformData(
-	          reason.response.data,
-	          reason.response.headers,
-	          config.transformResponse
-	        );
-	      }
-	    }
-	
-	    return Promise.reject(reason);
-	  });
-	};
-
-
-/***/ }),
-/* 9 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	
-	/**
-	 * Transform the data for a request or a response
-	 *
-	 * @param {Object|String} data The data to be transformed
-	 * @param {Array} headers The headers for the request or response
-	 * @param {Array|Function} fns A single function or Array of functions
-	 * @returns {*} The resulting transformed data
-	 */
-	module.exports = function transformData(data, headers, fns) {
-	  /*eslint no-param-reassign:0*/
-	  utils.forEach(fns, function transform(fn) {
-	    data = fn(data, headers);
-	  });
-	
-	  return data;
-	};
-
-
-/***/ }),
-/* 10 */
-/***/ (function(module, exports) {
-
-	'use strict';
-	
-	module.exports = function isCancel(value) {
-	  return !!(value && value.__CANCEL__);
-	};
-
-
-/***/ }),
-/* 11 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	var normalizeHeaderName = __webpack_require__(12);
-	
-	var DEFAULT_CONTENT_TYPE = {
-	  'Content-Type': 'application/x-www-form-urlencoded'
-	};
-	
-	function setContentTypeIfUnset(headers, value) {
-	  if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {
-	    headers['Content-Type'] = value;
-	  }
-	}
-	
-	function getDefaultAdapter() {
-	  var adapter;
-	  // Only Node.JS has a process variable that is of [[Class]] process
-	  if (typeof process !== 'undefined' && Object.prototype.toString.call(process) === '[object process]') {
-	    // For node use HTTP adapter
-	    adapter = __webpack_require__(13);
-	  } else if (typeof XMLHttpRequest !== 'undefined') {
-	    // For browsers use XHR adapter
-	    adapter = __webpack_require__(13);
-	  }
-	  return adapter;
-	}
-	
-	var defaults = {
-	  adapter: getDefaultAdapter(),
-	
-	  transformRequest: [function transformRequest(data, headers) {
-	    normalizeHeaderName(headers, 'Accept');
-	    normalizeHeaderName(headers, 'Content-Type');
-	    if (utils.isFormData(data) ||
-	      utils.isArrayBuffer(data) ||
-	      utils.isBuffer(data) ||
-	      utils.isStream(data) ||
-	      utils.isFile(data) ||
-	      utils.isBlob(data)
-	    ) {
-	      return data;
-	    }
-	    if (utils.isArrayBufferView(data)) {
-	      return data.buffer;
-	    }
-	    if (utils.isURLSearchParams(data)) {
-	      setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');
-	      return data.toString();
-	    }
-	    if (utils.isObject(data)) {
-	      setContentTypeIfUnset(headers, 'application/json;charset=utf-8');
-	      return JSON.stringify(data);
-	    }
-	    return data;
-	  }],
-	
-	  transformResponse: [function transformResponse(data) {
-	    /*eslint no-param-reassign:0*/
-	    if (typeof data === 'string') {
-	      try {
-	        data = JSON.parse(data);
-	      } catch (e) { /* Ignore */ }
-	    }
-	    return data;
-	  }],
-	
-	  /**
-	   * A timeout in milliseconds to abort a request. If set to 0 (default) a
-	   * timeout is not created.
-	   */
-	  timeout: 0,
-	
-	  xsrfCookieName: 'XSRF-TOKEN',
-	  xsrfHeaderName: 'X-XSRF-TOKEN',
-	
-	  maxContentLength: -1,
-	
-	  validateStatus: function validateStatus(status) {
-	    return status >= 200 && status < 300;
-	  }
-	};
-	
-	defaults.headers = {
-	  common: {
-	    'Accept': 'application/json, text/plain, */*'
-	  }
-	};
-	
-	utils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {
-	  defaults.headers[method] = {};
-	});
-	
-	utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
-	  defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);
-	});
-	
-	module.exports = defaults;
-
-
-/***/ }),
-/* 12 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	
-	module.exports = function normalizeHeaderName(headers, normalizedName) {
-	  utils.forEach(headers, function processHeader(value, name) {
-	    if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {
-	      headers[normalizedName] = value;
-	      delete headers[name];
-	    }
-	  });
-	};
-
-
-/***/ }),
-/* 13 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	var settle = __webpack_require__(14);
-	var buildURL = __webpack_require__(6);
-	var parseHeaders = __webpack_require__(17);
-	var isURLSameOrigin = __webpack_require__(18);
-	var createError = __webpack_require__(15);
-	
-	module.exports = function xhrAdapter(config) {
-	  return new Promise(function dispatchXhrRequest(resolve, reject) {
-	    var requestData = config.data;
-	    var requestHeaders = config.headers;
-	
-	    if (utils.isFormData(requestData)) {
-	      delete requestHeaders['Content-Type']; // Let the browser set it
-	    }
-	
-	    var request = new XMLHttpRequest();
-	
-	    // HTTP basic authentication
-	    if (config.auth) {
-	      var username = config.auth.username || '';
-	      var password = config.auth.password || '';
-	      requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);
-	    }
-	
-	    request.open(config.method.toUpperCase(), buildURL(config.url, config.params, config.paramsSerializer), true);
-	
-	    // Set the request timeout in MS
-	    request.timeout = config.timeout;
-	
-	    // Listen for ready state
-	    request.onreadystatechange = function handleLoad() {
-	      if (!request || request.readyState !== 4) {
-	        return;
-	      }
-	
-	      // The request errored out and we didn't get a response, this will be
-	      // handled by onerror instead
-	      // With one exception: request that using file: protocol, most browsers
-	      // will return status as 0 even though it's a successful request
-	      if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
-	        return;
-	      }
-	
-	      // Prepare the response
-	      var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;
-	      var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response;
-	      var response = {
-	        data: responseData,
-	        status: request.status,
-	        statusText: request.statusText,
-	        headers: responseHeaders,
-	        config: config,
-	        request: request
-	      };
-	
-	      settle(resolve, reject, response);
-	
-	      // Clean up request
-	      request = null;
-	    };
-	
-	    // Handle browser request cancellation (as opposed to a manual cancellation)
-	    request.onabort = function handleAbort() {
-	      if (!request) {
-	        return;
-	      }
-	
-	      reject(createError('Request aborted', config, 'ECONNABORTED', request));
-	
-	      // Clean up request
-	      request = null;
-	    };
-	
-	    // Handle low level network errors
-	    request.onerror = function handleError() {
-	      // Real errors are hidden from us by the browser
-	      // onerror should only fire if it's a network error
-	      reject(createError('Network Error', config, null, request));
-	
-	      // Clean up request
-	      request = null;
-	    };
-	
-	    // Handle timeout
-	    request.ontimeout = function handleTimeout() {
-	      reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED',
-	        request));
-	
-	      // Clean up request
-	      request = null;
-	    };
-	
-	    // Add xsrf header
-	    // This is only done if running in a standard browser environment.
-	    // Specifically not if we're in a web worker, or react-native.
-	    if (utils.isStandardBrowserEnv()) {
-	      var cookies = __webpack_require__(19);
-	
-	      // Add xsrf header
-	      var xsrfValue = (config.withCredentials || isURLSameOrigin(config.url)) && config.xsrfCookieName ?
-	        cookies.read(config.xsrfCookieName) :
-	        undefined;
-	
-	      if (xsrfValue) {
-	        requestHeaders[config.xsrfHeaderName] = xsrfValue;
-	      }
-	    }
-	
-	    // Add headers to the request
-	    if ('setRequestHeader' in request) {
-	      utils.forEach(requestHeaders, function setRequestHeader(val, key) {
-	        if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {
-	          // Remove Content-Type if data is undefined
-	          delete requestHeaders[key];
-	        } else {
-	          // Otherwise add header to the request
-	          request.setRequestHeader(key, val);
-	        }
-	      });
-	    }
-	
-	    // Add withCredentials to request if needed
-	    if (config.withCredentials) {
-	      request.withCredentials = true;
-	    }
-	
-	    // Add responseType to request if needed
-	    if (config.responseType) {
-	      try {
-	        request.responseType = config.responseType;
-	      } catch (e) {
-	        // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2.
-	        // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function.
-	        if (config.responseType !== 'json') {
-	          throw e;
-	        }
-	      }
-	    }
-	
-	    // Handle progress if needed
-	    if (typeof config.onDownloadProgress === 'function') {
-	      request.addEventListener('progress', config.onDownloadProgress);
-	    }
-	
-	    // Not all browsers support upload events
-	    if (typeof config.onUploadProgress === 'function' && request.upload) {
-	      request.upload.addEventListener('progress', config.onUploadProgress);
-	    }
-	
-	    if (config.cancelToken) {
-	      // Handle cancellation
-	      config.cancelToken.promise.then(function onCanceled(cancel) {
-	        if (!request) {
-	          return;
-	        }
-	
-	        request.abort();
-	        reject(cancel);
-	        // Clean up request
-	        request = null;
-	      });
-	    }
-	
-	    if (requestData === undefined) {
-	      requestData = null;
-	    }
-	
-	    // Send the request
-	    request.send(requestData);
-	  });
-	};
-
-
-/***/ }),
-/* 14 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var createError = __webpack_require__(15);
-	
-	/**
-	 * Resolve or reject a Promise based on response status.
-	 *
-	 * @param {Function} resolve A function that resolves the promise.
-	 * @param {Function} reject A function that rejects the promise.
-	 * @param {object} response The response.
-	 */
-	module.exports = function settle(resolve, reject, response) {
-	  var validateStatus = response.config.validateStatus;
-	  if (!validateStatus || validateStatus(response.status)) {
-	    resolve(response);
-	  } else {
-	    reject(createError(
-	      'Request failed with status code ' + response.status,
-	      response.config,
-	      null,
-	      response.request,
-	      response
-	    ));
-	  }
-	};
-
-
-/***/ }),
-/* 15 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var enhanceError = __webpack_require__(16);
-	
-	/**
-	 * Create an Error with the specified message, config, error code, request and response.
-	 *
-	 * @param {string} message The error message.
-	 * @param {Object} config The config.
-	 * @param {string} [code] The error code (for example, 'ECONNABORTED').
-	 * @param {Object} [request] The request.
-	 * @param {Object} [response] The response.
-	 * @returns {Error} The created error.
-	 */
-	module.exports = function createError(message, config, code, request, response) {
-	  var error = new Error(message);
-	  return enhanceError(error, config, code, request, response);
-	};
-
-
-/***/ }),
-/* 16 */
-/***/ (function(module, exports) {
-
-	'use strict';
-	
-	/**
-	 * Update an Error with the specified config, error code, and response.
-	 *
-	 * @param {Error} error The error to update.
-	 * @param {Object} config The config.
-	 * @param {string} [code] The error code (for example, 'ECONNABORTED').
-	 * @param {Object} [request] The request.
-	 * @param {Object} [response] The response.
-	 * @returns {Error} The error.
-	 */
-	module.exports = function enhanceError(error, config, code, request, response) {
-	  error.config = config;
-	  if (code) {
-	    error.code = code;
-	  }
-	
-	  error.request = request;
-	  error.response = response;
-	  error.isAxiosError = true;
-	
-	  error.toJSON = function() {
-	    return {
-	      // Standard
-	      message: this.message,
-	      name: this.name,
-	      // Microsoft
-	      description: this.description,
-	      number: this.number,
-	      // Mozilla
-	      fileName: this.fileName,
-	      lineNumber: this.lineNumber,
-	      columnNumber: this.columnNumber,
-	      stack: this.stack,
-	      // Axios
-	      config: this.config,
-	      code: this.code
-	    };
-	  };
-	  return error;
-	};
-
-
-/***/ }),
-/* 17 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	
-	// Headers whose duplicates are ignored by node
-	// c.f. https://nodejs.org/api/http.html#http_message_headers
-	var ignoreDuplicateOf = [
-	  'age', 'authorization', 'content-length', 'content-type', 'etag',
-	  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
-	  'last-modified', 'location', 'max-forwards', 'proxy-authorization',
-	  'referer', 'retry-after', 'user-agent'
-	];
-	
-	/**
-	 * Parse headers into an object
-	 *
-	 * ```
-	 * Date: Wed, 27 Aug 2014 08:58:49 GMT
-	 * Content-Type: application/json
-	 * Connection: keep-alive
-	 * Transfer-Encoding: chunked
-	 * ```
-	 *
-	 * @param {String} headers Headers needing to be parsed
-	 * @returns {Object} Headers parsed into an object
-	 */
-	module.exports = function parseHeaders(headers) {
-	  var parsed = {};
-	  var key;
-	  var val;
-	  var i;
-	
-	  if (!headers) { return parsed; }
-	
-	  utils.forEach(headers.split('\n'), function parser(line) {
-	    i = line.indexOf(':');
-	    key = utils.trim(line.substr(0, i)).toLowerCase();
-	    val = utils.trim(line.substr(i + 1));
-	
-	    if (key) {
-	      if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {
-	        return;
-	      }
-	      if (key === 'set-cookie') {
-	        parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);
-	      } else {
-	        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
-	      }
-	    }
-	  });
-	
-	  return parsed;
-	};
-
-
-/***/ }),
-/* 18 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	
-	module.exports = (
-	  utils.isStandardBrowserEnv() ?
-	
-	  // Standard browser envs have full support of the APIs needed to test
-	  // whether the request URL is of the same origin as current location.
-	    (function standardBrowserEnv() {
-	      var msie = /(msie|trident)/i.test(navigator.userAgent);
-	      var urlParsingNode = document.createElement('a');
-	      var originURL;
-	
-	      /**
-	    * Parse a URL to discover it's components
-	    *
-	    * @param {String} url The URL to be parsed
-	    * @returns {Object}
-	    */
-	      function resolveURL(url) {
-	        var href = url;
-	
-	        if (msie) {
-	        // IE needs attribute set twice to normalize properties
-	          urlParsingNode.setAttribute('href', href);
-	          href = urlParsingNode.href;
-	        }
-	
-	        urlParsingNode.setAttribute('href', href);
-	
-	        // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
-	        return {
-	          href: urlParsingNode.href,
-	          protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
-	          host: urlParsingNode.host,
-	          search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
-	          hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
-	          hostname: urlParsingNode.hostname,
-	          port: urlParsingNode.port,
-	          pathname: (urlParsingNode.pathname.charAt(0) === '/') ?
-	            urlParsingNode.pathname :
-	            '/' + urlParsingNode.pathname
-	        };
-	      }
-	
-	      originURL = resolveURL(window.location.href);
-	
-	      /**
-	    * Determine if a URL shares the same origin as the current location
-	    *
-	    * @param {String} requestURL The URL to test
-	    * @returns {boolean} True if URL shares the same origin, otherwise false
-	    */
-	      return function isURLSameOrigin(requestURL) {
-	        var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;
-	        return (parsed.protocol === originURL.protocol &&
-	            parsed.host === originURL.host);
-	      };
-	    })() :
-	
-	  // Non standard browser envs (web workers, react-native) lack needed support.
-	    (function nonStandardBrowserEnv() {
-	      return function isURLSameOrigin() {
-	        return true;
-	      };
-	    })()
-	);
-
-
-/***/ }),
-/* 19 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	
-	module.exports = (
-	  utils.isStandardBrowserEnv() ?
-	
-	  // Standard browser envs support document.cookie
-	    (function standardBrowserEnv() {
-	      return {
-	        write: function write(name, value, expires, path, domain, secure) {
-	          var cookie = [];
-	          cookie.push(name + '=' + encodeURIComponent(value));
-	
-	          if (utils.isNumber(expires)) {
-	            cookie.push('expires=' + new Date(expires).toGMTString());
-	          }
-	
-	          if (utils.isString(path)) {
-	            cookie.push('path=' + path);
-	          }
-	
-	          if (utils.isString(domain)) {
-	            cookie.push('domain=' + domain);
-	          }
-	
-	          if (secure === true) {
-	            cookie.push('secure');
-	          }
-	
-	          document.cookie = cookie.join('; ');
-	        },
-	
-	        read: function read(name) {
-	          var match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
-	          return (match ? decodeURIComponent(match[3]) : null);
-	        },
-	
-	        remove: function remove(name) {
-	          this.write(name, '', Date.now() - 86400000);
-	        }
-	      };
-	    })() :
-	
-	  // Non standard browser env (web workers, react-native) lack needed support.
-	    (function nonStandardBrowserEnv() {
-	      return {
-	        write: function write() {},
-	        read: function read() { return null; },
-	        remove: function remove() {}
-	      };
-	    })()
-	);
-
-
-/***/ }),
-/* 20 */
-/***/ (function(module, exports) {
-
-	'use strict';
-	
-	/**
-	 * Determines whether the specified URL is absolute
-	 *
-	 * @param {string} url The URL to test
-	 * @returns {boolean} True if the specified URL is absolute, otherwise false
-	 */
-	module.exports = function isAbsoluteURL(url) {
-	  // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
-	  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
-	  // by any combination of letters, digits, plus, period, or hyphen.
-	  return /^([a-z][a-z\d\+\-\.]*:)?\/\//i.test(url);
-	};
-
-
-/***/ }),
-/* 21 */
-/***/ (function(module, exports) {
-
-	'use strict';
-	
-	/**
-	 * Creates a new URL by combining the specified URLs
-	 *
-	 * @param {string} baseURL The base URL
-	 * @param {string} relativeURL The relative URL
-	 * @returns {string} The combined URL
-	 */
-	module.exports = function combineURLs(baseURL, relativeURL) {
-	  return relativeURL
-	    ? baseURL.replace(/\/+$/, '') + '/' + relativeURL.replace(/^\/+/, '')
-	    : baseURL;
-	};
-
-
-/***/ }),
-/* 22 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var utils = __webpack_require__(2);
-	
-	/**
-	 * Config-specific merge-function which creates a new config-object
-	 * by merging two configuration objects together.
-	 *
-	 * @param {Object} config1
-	 * @param {Object} config2
-	 * @returns {Object} New object resulting from merging config2 to config1
-	 */
-	module.exports = function mergeConfig(config1, config2) {
-	  // eslint-disable-next-line no-param-reassign
-	  config2 = config2 || {};
-	  var config = {};
-	
-	  utils.forEach(['url', 'method', 'params', 'data'], function valueFromConfig2(prop) {
-	    if (typeof config2[prop] !== 'undefined') {
-	      config[prop] = config2[prop];
-	    }
-	  });
-	
-	  utils.forEach(['headers', 'auth', 'proxy'], function mergeDeepProperties(prop) {
-	    if (utils.isObject(config2[prop])) {
-	      config[prop] = utils.deepMerge(config1[prop], config2[prop]);
-	    } else if (typeof config2[prop] !== 'undefined') {
-	      config[prop] = config2[prop];
-	    } else if (utils.isObject(config1[prop])) {
-	      config[prop] = utils.deepMerge(config1[prop]);
-	    } else if (typeof config1[prop] !== 'undefined') {
-	      config[prop] = config1[prop];
-	    }
-	  });
-	
-	  utils.forEach([
-	    'baseURL', 'transformRequest', 'transformResponse', 'paramsSerializer',
-	    'timeout', 'withCredentials', 'adapter', 'responseType', 'xsrfCookieName',
-	    'xsrfHeaderName', 'onUploadProgress', 'onDownloadProgress', 'maxContentLength',
-	    'validateStatus', 'maxRedirects', 'httpAgent', 'httpsAgent', 'cancelToken',
-	    'socketPath'
-	  ], function defaultToConfig2(prop) {
-	    if (typeof config2[prop] !== 'undefined') {
-	      config[prop] = config2[prop];
-	    } else if (typeof config1[prop] !== 'undefined') {
-	      config[prop] = config1[prop];
-	    }
-	  });
-	
-	  return config;
-	};
-
-
-/***/ }),
-/* 23 */
-/***/ (function(module, exports) {
-
-	'use strict';
-	
-	/**
-	 * A `Cancel` is an object that is thrown when an operation is canceled.
-	 *
-	 * @class
-	 * @param {string=} message The message.
-	 */
-	function Cancel(message) {
-	  this.message = message;
-	}
-	
-	Cancel.prototype.toString = function toString() {
-	  return 'Cancel' + (this.message ? ': ' + this.message : '');
-	};
-	
-	Cancel.prototype.__CANCEL__ = true;
-	
-	module.exports = Cancel;
-
-
-/***/ }),
-/* 24 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-	
-	var Cancel = __webpack_require__(23);
-	
-	/**
-	 * A `CancelToken` is an object that can be used to request cancellation of an operation.
-	 *
-	 * @class
-	 * @param {Function} executor The executor function.
-	 */
-	function CancelToken(executor) {
-	  if (typeof executor !== 'function') {
-	    throw new TypeError('executor must be a function.');
-	  }
-	
-	  var resolvePromise;
-	  this.promise = new Promise(function promiseExecutor(resolve) {
-	    resolvePromise = resolve;
-	  });
-	
-	  var token = this;
-	  executor(function cancel(message) {
-	    if (token.reason) {
-	      // Cancellation has already been requested
-	      return;
-	    }
-	
-	    token.reason = new Cancel(message);
-	    resolvePromise(token.reason);
-	  });
-	}
-	
-	/**
-	 * Throws a `Cancel` if cancellation has been requested.
-	 */
-	CancelToken.prototype.throwIfRequested = function throwIfRequested() {
-	  if (this.reason) {
-	    throw this.reason;
-	  }
-	};
-	
-	/**
-	 * Returns an object that contains a new `CancelToken` and a function that, when called,
-	 * cancels the `CancelToken`.
-	 */
-	CancelToken.source = function source() {
-	  var cancel;
-	  var token = new CancelToken(function executor(c) {
-	    cancel = c;
-	  });
-	  return {
-	    token: token,
-	    cancel: cancel
-	  };
-	};
-	
-	module.exports = CancelToken;
-
-
-/***/ }),
-/* 25 */
-/***/ (function(module, exports) {
-
-	'use strict';
-	
-	/**
-	 * Syntactic sugar for invoking a function and expanding an array for arguments.
-	 *
-	 * Common use case would be to use `Function.prototype.apply`.
-	 *
-	 *  ```js
-	 *  function f(x, y, z) {}
-	 *  var args = [1, 2, 3];
-	 *  f.apply(null, args);
-	 *  ```
-	 *
-	 * With `spread` this example can be re-written.
-	 *
-	 *  ```js
-	 *  spread(function(x, y, z) {})([1, 2, 3]);
-	 *  ```
-	 *
-	 * @param {Function} callback
-	 * @returns {Function}
-	 */
-	module.exports = function spread(callback) {
-	  return function wrap(arr) {
-	    return callback.apply(null, arr);
-	  };
-	};
-
-
-/***/ })
-/******/ ])
-});
-;
-//# sourceMappingURL=axios.map
\ No newline at end of file
diff --git a/WebServer/node_modules/axios/dist/axios.min.js b/WebServer/node_modules/axios/dist/axios.min.js
deleted file mode 100644
index 0f3681630..000000000
--- a/WebServer/node_modules/axios/dist/axios.min.js
+++ /dev/null
@@ -1,9 +0,0 @@
-/* axios v0.19.0 | (c) 2019 by Matt Zabriskie */
-!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.axios=t():e.axios=t()}(this,function(){return function(e){function t(r){if(n[r])return n[r].exports;var o=n[r]={exports:{},id:r,loaded:!1};return e[r].call(o.exports,o,o.exports,t),o.loaded=!0,o.exports}var n={};return t.m=e,t.c=n,t.p="",t(0)}([function(e,t,n){e.exports=n(1)},function(e,t,n){"use strict";function r(e){var t=new i(e),n=s(i.prototype.request,t);return o.extend(n,i.prototype,t),o.extend(n,t),n}var o=n(2),s=n(3),i=n(5),a=n(22),u=n(11),c=r(u);c.Axios=i,c.create=function(e){return r(a(c.defaults,e))},c.Cancel=n(23),c.CancelToken=n(24),c.isCancel=n(10),c.all=function(e){return Promise.all(e)},c.spread=n(25),e.exports=c,e.exports.default=c},function(e,t,n){"use strict";function r(e){return"[object Array]"===j.call(e)}function o(e){return"[object ArrayBuffer]"===j.call(e)}function s(e){return"undefined"!=typeof FormData&&e instanceof FormData}function i(e){var t;return t="undefined"!=typeof ArrayBuffer&&ArrayBuffer.isView?ArrayBuffer.isView(e):e&&e.buffer&&e.buffer instanceof ArrayBuffer}function a(e){return"string"==typeof e}function u(e){return"number"==typeof e}function c(e){return"undefined"==typeof e}function f(e){return null!==e&&"object"==typeof e}function p(e){return"[object Date]"===j.call(e)}function d(e){return"[object File]"===j.call(e)}function l(e){return"[object Blob]"===j.call(e)}function h(e){return"[object Function]"===j.call(e)}function m(e){return f(e)&&h(e.pipe)}function y(e){return"undefined"!=typeof URLSearchParams&&e instanceof URLSearchParams}function g(e){return e.replace(/^\s*/,"").replace(/\s*$/,"")}function x(){return("undefined"==typeof navigator||"ReactNative"!==navigator.product&&"NativeScript"!==navigator.product&&"NS"!==navigator.product)&&("undefined"!=typeof window&&"undefined"!=typeof document)}function v(e,t){if(null!==e&&"undefined"!=typeof e)if("object"!=typeof e&&(e=[e]),r(e))for(var n=0,o=e.length;n<o;n++)t.call(null,e[n],n,e);else for(var s in e)Object.prototype.hasOwnProperty.call(e,s)&&t.call(null,e[s],s,e)}function w(){function e(e,n){"object"==typeof t[n]&&"object"==typeof e?t[n]=w(t[n],e):t[n]=e}for(var t={},n=0,r=arguments.length;n<r;n++)v(arguments[n],e);return t}function b(){function e(e,n){"object"==typeof t[n]&&"object"==typeof e?t[n]=b(t[n],e):"object"==typeof e?t[n]=b({},e):t[n]=e}for(var t={},n=0,r=arguments.length;n<r;n++)v(arguments[n],e);return t}function E(e,t,n){return v(t,function(t,r){n&&"function"==typeof t?e[r]=S(t,n):e[r]=t}),e}var S=n(3),R=n(4),j=Object.prototype.toString;e.exports={isArray:r,isArrayBuffer:o,isBuffer:R,isFormData:s,isArrayBufferView:i,isString:a,isNumber:u,isObject:f,isUndefined:c,isDate:p,isFile:d,isBlob:l,isFunction:h,isStream:m,isURLSearchParams:y,isStandardBrowserEnv:x,forEach:v,merge:w,deepMerge:b,extend:E,trim:g}},function(e,t){"use strict";e.exports=function(e,t){return function(){for(var n=new Array(arguments.length),r=0;r<n.length;r++)n[r]=arguments[r];return e.apply(t,n)}}},function(e,t){/*!
-	 * Determine if an object is a Buffer
-	 *
-	 * @author   Feross Aboukhadijeh <https://feross.org>
-	 * @license  MIT
-	 */
-e.exports=function(e){return null!=e&&null!=e.constructor&&"function"==typeof e.constructor.isBuffer&&e.constructor.isBuffer(e)}},function(e,t,n){"use strict";function r(e){this.defaults=e,this.interceptors={request:new i,response:new i}}var o=n(2),s=n(6),i=n(7),a=n(8),u=n(22);r.prototype.request=function(e){"string"==typeof e?(e=arguments[1]||{},e.url=arguments[0]):e=e||{},e=u(this.defaults,e),e.method=e.method?e.method.toLowerCase():"get";var t=[a,void 0],n=Promise.resolve(e);for(this.interceptors.request.forEach(function(e){t.unshift(e.fulfilled,e.rejected)}),this.interceptors.response.forEach(function(e){t.push(e.fulfilled,e.rejected)});t.length;)n=n.then(t.shift(),t.shift());return n},r.prototype.getUri=function(e){return e=u(this.defaults,e),s(e.url,e.params,e.paramsSerializer).replace(/^\?/,"")},o.forEach(["delete","get","head","options"],function(e){r.prototype[e]=function(t,n){return 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e}],timeout:0,xsrfCookieName:"XSRF-TOKEN",xsrfHeaderName:"X-XSRF-TOKEN",maxContentLength:-1,validateStatus:function(e){return e>=200&&e<300}};u.headers={common:{Accept:"application/json, text/plain, */*"}},s.forEach(["delete","get","head"],function(e){u.headers[e]={}}),s.forEach(["post","put","patch"],function(e){u.headers[e]=s.merge(a)}),e.exports=u},function(e,t,n){"use strict";var r=n(2);e.exports=function(e,t){r.forEach(e,function(n,r){r!==t&&r.toUpperCase()===t.toUpperCase()&&(e[t]=n,delete e[r])})}},function(e,t,n){"use strict";var r=n(2),o=n(14),s=n(6),i=n(17),a=n(18),u=n(15);e.exports=function(e){return new Promise(function(t,c){var f=e.data,p=e.headers;r.isFormData(f)&&delete p["Content-Type"];var d=new XMLHttpRequest;if(e.auth){var l=e.auth.username||"",h=e.auth.password||"";p.Authorization="Basic "+btoa(l+":"+h)}if(d.open(e.method.toUpperCase(),s(e.url,e.params,e.paramsSerializer),!0),d.timeout=e.timeout,d.onreadystatechange=function(){if(d&&4===d.readyState&&(0!==d.status||d.responseURL&&0===d.responseURL.indexOf("file:"))){var n="getAllResponseHeaders"in d?i(d.getAllResponseHeaders()):null,r=e.responseType&&"text"!==e.responseType?d.response:d.responseText,s={data:r,status:d.status,statusText:d.statusText,headers:n,config:e,request:d};o(t,c,s),d=null}},d.onabort=function(){d&&(c(u("Request aborted",e,"ECONNABORTED",d)),d=null)},d.onerror=function(){c(u("Network Error",e,null,d)),d=null},d.ontimeout=function(){c(u("timeout of "+e.timeout+"ms exceeded",e,"ECONNABORTED",d)),d=null},r.isStandardBrowserEnv()){var m=n(19),y=(e.withCredentials||a(e.url))&&e.xsrfCookieName?m.read(e.xsrfCookieName):void 0;y&&(p[e.xsrfHeaderName]=y)}if("setRequestHeader"in d&&r.forEach(p,function(e,t){"undefined"==typeof f&&"content-type"===t.toLowerCase()?delete p[t]:d.setRequestHeader(t,e)}),e.withCredentials&&(d.withCredentials=!0),e.responseType)try{d.responseType=e.responseType}catch(t){if("json"!==e.responseType)throw t}"function"==typeof e.onDownloadProgress&&d.addEventListener("progress",e.onDownloadProgress),"function"==typeof e.onUploadProgress&&d.upload&&d.upload.addEventListener("progress",e.onUploadProgress),e.cancelToken&&e.cancelToken.promise.then(function(e){d&&(d.abort(),c(e),d=null)}),void 0===f&&(f=null),d.send(f)})}},function(e,t,n){"use strict";var r=n(15);e.exports=function(e,t,n){var o=n.config.validateStatus;!o||o(n.status)?e(n):t(r("Request failed with status code "+n.status,n.config,null,n.request,n))}},function(e,t,n){"use strict";var r=n(16);e.exports=function(e,t,n,o,s){var i=new Error(e);return r(i,t,n,o,s)}},function(e,t){"use strict";e.exports=function(e,t,n,r,o){return e.config=t,n&&(e.code=n),e.request=r,e.response=o,e.isAxiosError=!0,e.toJSON=function(){return{message:this.message,name:this.name,description:this.description,number:this.number,fileName:this.fileName,lineNumber:this.lineNumber,columnNumber:this.columnNumber,stack:this.stack,config:this.config,code:this.code}},e}},function(e,t,n){"use strict";var r=n(2),o=["age","authorization","content-length","content-type","etag","expires","from","host","if-modified-since","if-unmodified-since","last-modified","location","max-forwards","proxy-authorization","referer","retry-after","user-agent"];e.exports=function(e){var t,n,s,i={};return e?(r.forEach(e.split("\n"),function(e){if(s=e.indexOf(":"),t=r.trim(e.substr(0,s)).toLowerCase(),n=r.trim(e.substr(s+1)),t){if(i[t]&&o.indexOf(t)>=0)return;"set-cookie"===t?i[t]=(i[t]?i[t]:[]).concat([n]):i[t]=i[t]?i[t]+", "+n:n}}),i):i}},function(e,t,n){"use strict";var r=n(2);e.exports=r.isStandardBrowserEnv()?function(){function e(e){var t=e;return n&&(o.setAttribute("href",t),t=o.href),o.setAttribute("href",t),{href:o.href,protocol:o.protocol?o.protocol.replace(/:$/,""):"",host:o.host,search:o.search?o.search.replace(/^\?/,""):"",hash:o.hash?o.hash.replace(/^#/,""):"",hostname:o.hostname,port:o.port,pathname:"/"===o.pathname.charAt(0)?o.pathname:"/"+o.pathname}}var t,n=/(msie|trident)/i.test(navigator.userAgent),o=document.createElement("a");return t=e(window.location.href),function(n){var o=r.isString(n)?e(n):n;return o.protocol===t.protocol&&o.host===t.host}}():function(){return function(){return!0}}()},function(e,t,n){"use strict";var r=n(2);e.exports=r.isStandardBrowserEnv()?function(){return{write:function(e,t,n,o,s,i){var a=[];a.push(e+"="+encodeURIComponent(t)),r.isNumber(n)&&a.push("expires="+new Date(n).toGMTString()),r.isString(o)&&a.push("path="+o),r.isString(s)&&a.push("domain="+s),i===!0&&a.push("secure"),document.cookie=a.join("; ")},read:function(e){var t=document.cookie.match(new RegExp("(^|;\\s*)("+e+")=([^;]*)"));return t?decodeURIComponent(t[3]):null},remove:function(e){this.write(e,"",Date.now()-864e5)}}}():function(){return{write:function(){},read:function(){return null},remove:function(){}}}()},function(e,t){"use strict";e.exports=function(e){return/^([a-z][a-z\d\+\-\.]*:)?\/\//i.test(e)}},function(e,t){"use strict";e.exports=function(e,t){return t?e.replace(/\/+$/,"")+"/"+t.replace(/^\/+/,""):e}},function(e,t,n){"use strict";var r=n(2);e.exports=function(e,t){t=t||{};var n={};return r.forEach(["url","method","params","data"],function(e){"undefined"!=typeof t[e]&&(n[e]=t[e])}),r.forEach(["headers","auth","proxy"],function(o){r.isObject(t[o])?n[o]=r.deepMerge(e[o],t[o]):"undefined"!=typeof t[o]?n[o]=t[o]:r.isObject(e[o])?n[o]=r.deepMerge(e[o]):"undefined"!=typeof e[o]&&(n[o]=e[o])}),r.forEach(["baseURL","transformRequest","transformResponse","paramsSerializer","timeout","withCredentials","adapter","responseType","xsrfCookieName","xsrfHeaderName","onUploadProgress","onDownloadProgress","maxContentLength","validateStatus","maxRedirects","httpAgent","httpsAgent","cancelToken","socketPath"],function(r){"undefined"!=typeof t[r]?n[r]=t[r]:"undefined"!=typeof e[r]&&(n[r]=e[r])}),n}},function(e,t){"use strict";function n(e){this.message=e}n.prototype.toString=function(){return"Cancel"+(this.message?": "+this.message:"")},n.prototype.__CANCEL__=!0,e.exports=n},function(e,t,n){"use strict";function r(e){if("function"!=typeof e)throw new TypeError("executor must be a function.");var t;this.promise=new Promise(function(e){t=e});var n=this;e(function(e){n.reason||(n.reason=new o(e),t(n.reason))})}var o=n(23);r.prototype.throwIfRequested=function(){if(this.reason)throw this.reason},r.source=function(){var e,t=new r(function(t){e=t});return{token:t,cancel:e}},e.exports=r},function(e,t){"use strict";e.exports=function(e){return function(t){return e.apply(null,t)}}}])});
-//# sourceMappingURL=axios.min.map
\ No newline at end of file
diff --git a/WebServer/node_modules/axios/index.js b/WebServer/node_modules/axios/index.js
deleted file mode 100644
index 79dfd09dd..000000000
--- a/WebServer/node_modules/axios/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = require('./lib/axios');
\ No newline at end of file
diff --git a/WebServer/node_modules/axios/lib/adapters/http.js b/WebServer/node_modules/axios/lib/adapters/http.js
deleted file mode 100644
index 06169ff2c..000000000
--- a/WebServer/node_modules/axios/lib/adapters/http.js
+++ /dev/null
@@ -1,275 +0,0 @@
-'use strict';
-
-var utils = require('./../utils');
-var settle = require('./../core/settle');
-var buildURL = require('./../helpers/buildURL');
-var http = require('http');
-var https = require('https');
-var httpFollow = require('follow-redirects').http;
-var httpsFollow = require('follow-redirects').https;
-var url = require('url');
-var zlib = require('zlib');
-var pkg = require('./../../package.json');
-var createError = require('../core/createError');
-var enhanceError = require('../core/enhanceError');
-
-var isHttps = /https:?/;
-
-/*eslint consistent-return:0*/
-module.exports = function httpAdapter(config) {
-  return new Promise(function dispatchHttpRequest(resolvePromise, rejectPromise) {
-    var timer;
-    var resolve = function resolve(value) {
-      clearTimeout(timer);
-      resolvePromise(value);
-    };
-    var reject = function reject(value) {
-      clearTimeout(timer);
-      rejectPromise(value);
-    };
-    var data = config.data;
-    var headers = config.headers;
-
-    // Set User-Agent (required by some servers)
-    // Only set header if it hasn't been set in config
-    // See https://github.com/axios/axios/issues/69
-    if (!headers['User-Agent'] && !headers['user-agent']) {
-      headers['User-Agent'] = 'axios/' + pkg.version;
-    }
-
-    if (data && !utils.isStream(data)) {
-      if (Buffer.isBuffer(data)) {
-        // Nothing to do...
-      } else if (utils.isArrayBuffer(data)) {
-        data = Buffer.from(new Uint8Array(data));
-      } else if (utils.isString(data)) {
-        data = Buffer.from(data, 'utf-8');
-      } else {
-        return reject(createError(
-          'Data after transformation must be a string, an ArrayBuffer, a Buffer, or a Stream',
-          config
-        ));
-      }
-
-      // Add Content-Length header if data exists
-      headers['Content-Length'] = data.length;
-    }
-
-    // HTTP basic authentication
-    var auth = undefined;
-    if (config.auth) {
-      var username = config.auth.username || '';
-      var password = config.auth.password || '';
-      auth = username + ':' + password;
-    }
-
-    // Parse url
-    var parsed = url.parse(config.url);
-    var protocol = parsed.protocol || 'http:';
-
-    if (!auth && parsed.auth) {
-      var urlAuth = parsed.auth.split(':');
-      var urlUsername = urlAuth[0] || '';
-      var urlPassword = urlAuth[1] || '';
-      auth = urlUsername + ':' + urlPassword;
-    }
-
-    if (auth) {
-      delete headers.Authorization;
-    }
-
-    var isHttpsRequest = isHttps.test(protocol);
-    var agent = isHttpsRequest ? config.httpsAgent : config.httpAgent;
-
-    var options = {
-      path: buildURL(parsed.path, config.params, config.paramsSerializer).replace(/^\?/, ''),
-      method: config.method.toUpperCase(),
-      headers: headers,
-      agent: agent,
-      auth: auth
-    };
-
-    if (config.socketPath) {
-      options.socketPath = config.socketPath;
-    } else {
-      options.hostname = parsed.hostname;
-      options.port = parsed.port;
-    }
-
-    var proxy = config.proxy;
-    if (!proxy && proxy !== false) {
-      var proxyEnv = protocol.slice(0, -1) + '_proxy';
-      var proxyUrl = process.env[proxyEnv] || process.env[proxyEnv.toUpperCase()];
-      if (proxyUrl) {
-        var parsedProxyUrl = url.parse(proxyUrl);
-        var noProxyEnv = process.env.no_proxy || process.env.NO_PROXY;
-        var shouldProxy = true;
-
-        if (noProxyEnv) {
-          var noProxy = noProxyEnv.split(',').map(function trim(s) {
-            return s.trim();
-          });
-
-          shouldProxy = !noProxy.some(function proxyMatch(proxyElement) {
-            if (!proxyElement) {
-              return false;
-            }
-            if (proxyElement === '*') {
-              return true;
-            }
-            if (proxyElement[0] === '.' &&
-                parsed.hostname.substr(parsed.hostname.length - proxyElement.length) === proxyElement &&
-                proxyElement.match(/\./g).length === parsed.hostname.match(/\./g).length) {
-              return true;
-            }
-
-            return parsed.hostname === proxyElement;
-          });
-        }
-
-
-        if (shouldProxy) {
-          proxy = {
-            host: parsedProxyUrl.hostname,
-            port: parsedProxyUrl.port
-          };
-
-          if (parsedProxyUrl.auth) {
-            var proxyUrlAuth = parsedProxyUrl.auth.split(':');
-            proxy.auth = {
-              username: proxyUrlAuth[0],
-              password: proxyUrlAuth[1]
-            };
-          }
-        }
-      }
-    }
-
-    if (proxy) {
-      options.hostname = proxy.host;
-      options.host = proxy.host;
-      options.headers.host = parsed.hostname + (parsed.port ? ':' + parsed.port : '');
-      options.port = proxy.port;
-      options.path = protocol + '//' + parsed.hostname + (parsed.port ? ':' + parsed.port : '') + options.path;
-
-      // Basic proxy authorization
-      if (proxy.auth) {
-        var base64 = Buffer.from(proxy.auth.username + ':' + proxy.auth.password, 'utf8').toString('base64');
-        options.headers['Proxy-Authorization'] = 'Basic ' + base64;
-      }
-    }
-
-    var transport;
-    var isHttpsProxy = isHttpsRequest && (proxy ? isHttps.test(proxy.protocol) : true);
-    if (config.transport) {
-      transport = config.transport;
-    } else if (config.maxRedirects === 0) {
-      transport = isHttpsProxy ? https : http;
-    } else {
-      if (config.maxRedirects) {
-        options.maxRedirects = config.maxRedirects;
-      }
-      transport = isHttpsProxy ? httpsFollow : httpFollow;
-    }
-
-    if (config.maxContentLength && config.maxContentLength > -1) {
-      options.maxBodyLength = config.maxContentLength;
-    }
-
-    // Create the request
-    var req = transport.request(options, function handleResponse(res) {
-      if (req.aborted) return;
-
-      // uncompress the response body transparently if required
-      var stream = res;
-      switch (res.headers['content-encoding']) {
-      /*eslint default-case:0*/
-      case 'gzip':
-      case 'compress':
-      case 'deflate':
-        // add the unzipper to the body stream processing pipeline
-        stream = (res.statusCode === 204) ? stream : stream.pipe(zlib.createUnzip());
-
-        // remove the content-encoding in order to not confuse downstream operations
-        delete res.headers['content-encoding'];
-        break;
-      }
-
-      // return the last request in case of redirects
-      var lastRequest = res.req || req;
-
-      var response = {
-        status: res.statusCode,
-        statusText: res.statusMessage,
-        headers: res.headers,
-        config: config,
-        request: lastRequest
-      };
-
-      if (config.responseType === 'stream') {
-        response.data = stream;
-        settle(resolve, reject, response);
-      } else {
-        var responseBuffer = [];
-        stream.on('data', function handleStreamData(chunk) {
-          responseBuffer.push(chunk);
-
-          // make sure the content length is not over the maxContentLength if specified
-          if (config.maxContentLength > -1 && Buffer.concat(responseBuffer).length > config.maxContentLength) {
-            stream.destroy();
-            reject(createError('maxContentLength size of ' + config.maxContentLength + ' exceeded',
-              config, null, lastRequest));
-          }
-        });
-
-        stream.on('error', function handleStreamError(err) {
-          if (req.aborted) return;
-          reject(enhanceError(err, config, null, lastRequest));
-        });
-
-        stream.on('end', function handleStreamEnd() {
-          var responseData = Buffer.concat(responseBuffer);
-          if (config.responseType !== 'arraybuffer') {
-            responseData = responseData.toString(config.responseEncoding);
-          }
-
-          response.data = responseData;
-          settle(resolve, reject, response);
-        });
-      }
-    });
-
-    // Handle errors
-    req.on('error', function handleRequestError(err) {
-      if (req.aborted) return;
-      reject(enhanceError(err, config, null, req));
-    });
-
-    // Handle request timeout
-    if (config.timeout) {
-      timer = setTimeout(function handleRequestTimeout() {
-        req.abort();
-        reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED', req));
-      }, config.timeout);
-    }
-
-    if (config.cancelToken) {
-      // Handle cancellation
-      config.cancelToken.promise.then(function onCanceled(cancel) {
-        if (req.aborted) return;
-
-        req.abort();
-        reject(cancel);
-      });
-    }
-
-    // Send the request
-    if (utils.isStream(data)) {
-      data.on('error', function handleStreamError(err) {
-        reject(enhanceError(err, config, null, req));
-      }).pipe(req);
-    } else {
-      req.end(data);
-    }
-  });
-};
diff --git a/WebServer/node_modules/axios/lib/adapters/xhr.js b/WebServer/node_modules/axios/lib/adapters/xhr.js
deleted file mode 100644
index 8c98d114b..000000000
--- a/WebServer/node_modules/axios/lib/adapters/xhr.js
+++ /dev/null
@@ -1,174 +0,0 @@
-'use strict';
-
-var utils = require('./../utils');
-var settle = require('./../core/settle');
-var buildURL = require('./../helpers/buildURL');
-var parseHeaders = require('./../helpers/parseHeaders');
-var isURLSameOrigin = require('./../helpers/isURLSameOrigin');
-var createError = require('../core/createError');
-
-module.exports = function xhrAdapter(config) {
-  return new Promise(function dispatchXhrRequest(resolve, reject) {
-    var requestData = config.data;
-    var requestHeaders = config.headers;
-
-    if (utils.isFormData(requestData)) {
-      delete requestHeaders['Content-Type']; // Let the browser set it
-    }
-
-    var request = new XMLHttpRequest();
-
-    // HTTP basic authentication
-    if (config.auth) {
-      var username = config.auth.username || '';
-      var password = config.auth.password || '';
-      requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);
-    }
-
-    request.open(config.method.toUpperCase(), buildURL(config.url, config.params, config.paramsSerializer), true);
-
-    // Set the request timeout in MS
-    request.timeout = config.timeout;
-
-    // Listen for ready state
-    request.onreadystatechange = function handleLoad() {
-      if (!request || request.readyState !== 4) {
-        return;
-      }
-
-      // The request errored out and we didn't get a response, this will be
-      // handled by onerror instead
-      // With one exception: request that using file: protocol, most browsers
-      // will return status as 0 even though it's a successful request
-      if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
-        return;
-      }
-
-      // Prepare the response
-      var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;
-      var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response;
-      var response = {
-        data: responseData,
-        status: request.status,
-        statusText: request.statusText,
-        headers: responseHeaders,
-        config: config,
-        request: request
-      };
-
-      settle(resolve, reject, response);
-
-      // Clean up request
-      request = null;
-    };
-
-    // Handle browser request cancellation (as opposed to a manual cancellation)
-    request.onabort = function handleAbort() {
-      if (!request) {
-        return;
-      }
-
-      reject(createError('Request aborted', config, 'ECONNABORTED', request));
-
-      // Clean up request
-      request = null;
-    };
-
-    // Handle low level network errors
-    request.onerror = function handleError() {
-      // Real errors are hidden from us by the browser
-      // onerror should only fire if it's a network error
-      reject(createError('Network Error', config, null, request));
-
-      // Clean up request
-      request = null;
-    };
-
-    // Handle timeout
-    request.ontimeout = function handleTimeout() {
-      reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED',
-        request));
-
-      // Clean up request
-      request = null;
-    };
-
-    // Add xsrf header
-    // This is only done if running in a standard browser environment.
-    // Specifically not if we're in a web worker, or react-native.
-    if (utils.isStandardBrowserEnv()) {
-      var cookies = require('./../helpers/cookies');
-
-      // Add xsrf header
-      var xsrfValue = (config.withCredentials || isURLSameOrigin(config.url)) && config.xsrfCookieName ?
-        cookies.read(config.xsrfCookieName) :
-        undefined;
-
-      if (xsrfValue) {
-        requestHeaders[config.xsrfHeaderName] = xsrfValue;
-      }
-    }
-
-    // Add headers to the request
-    if ('setRequestHeader' in request) {
-      utils.forEach(requestHeaders, function setRequestHeader(val, key) {
-        if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {
-          // Remove Content-Type if data is undefined
-          delete requestHeaders[key];
-        } else {
-          // Otherwise add header to the request
-          request.setRequestHeader(key, val);
-        }
-      });
-    }
-
-    // Add withCredentials to request if needed
-    if (config.withCredentials) {
-      request.withCredentials = true;
-    }
-
-    // Add responseType to request if needed
-    if (config.responseType) {
-      try {
-        request.responseType = config.responseType;
-      } catch (e) {
-        // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2.
-        // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function.
-        if (config.responseType !== 'json') {
-          throw e;
-        }
-      }
-    }
-
-    // Handle progress if needed
-    if (typeof config.onDownloadProgress === 'function') {
-      request.addEventListener('progress', config.onDownloadProgress);
-    }
-
-    // Not all browsers support upload events
-    if (typeof config.onUploadProgress === 'function' && request.upload) {
-      request.upload.addEventListener('progress', config.onUploadProgress);
-    }
-
-    if (config.cancelToken) {
-      // Handle cancellation
-      config.cancelToken.promise.then(function onCanceled(cancel) {
-        if (!request) {
-          return;
-        }
-
-        request.abort();
-        reject(cancel);
-        // Clean up request
-        request = null;
-      });
-    }
-
-    if (requestData === undefined) {
-      requestData = null;
-    }
-
-    // Send the request
-    request.send(requestData);
-  });
-};
diff --git a/WebServer/node_modules/axios/lib/axios.js b/WebServer/node_modules/axios/lib/axios.js
deleted file mode 100644
index 814243798..000000000
--- a/WebServer/node_modules/axios/lib/axios.js
+++ /dev/null
@@ -1,53 +0,0 @@
-'use strict';
-
-var utils = require('./utils');
-var bind = require('./helpers/bind');
-var Axios = require('./core/Axios');
-var mergeConfig = require('./core/mergeConfig');
-var defaults = require('./defaults');
-
-/**
- * Create an instance of Axios
- *
- * @param {Object} defaultConfig The default config for the instance
- * @return {Axios} A new instance of Axios
- */
-function createInstance(defaultConfig) {
-  var context = new Axios(defaultConfig);
-  var instance = bind(Axios.prototype.request, context);
-
-  // Copy axios.prototype to instance
-  utils.extend(instance, Axios.prototype, context);
-
-  // Copy context to instance
-  utils.extend(instance, context);
-
-  return instance;
-}
-
-// Create the default instance to be exported
-var axios = createInstance(defaults);
-
-// Expose Axios class to allow class inheritance
-axios.Axios = Axios;
-
-// Factory for creating new instances
-axios.create = function create(instanceConfig) {
-  return createInstance(mergeConfig(axios.defaults, instanceConfig));
-};
-
-// Expose Cancel & CancelToken
-axios.Cancel = require('./cancel/Cancel');
-axios.CancelToken = require('./cancel/CancelToken');
-axios.isCancel = require('./cancel/isCancel');
-
-// Expose all/spread
-axios.all = function all(promises) {
-  return Promise.all(promises);
-};
-axios.spread = require('./helpers/spread');
-
-module.exports = axios;
-
-// Allow use of default import syntax in TypeScript
-module.exports.default = axios;
diff --git a/WebServer/node_modules/axios/lib/cancel/Cancel.js b/WebServer/node_modules/axios/lib/cancel/Cancel.js
deleted file mode 100644
index e0de4003f..000000000
--- a/WebServer/node_modules/axios/lib/cancel/Cancel.js
+++ /dev/null
@@ -1,19 +0,0 @@
-'use strict';
-
-/**
- * A `Cancel` is an object that is thrown when an operation is canceled.
- *
- * @class
- * @param {string=} message The message.
- */
-function Cancel(message) {
-  this.message = message;
-}
-
-Cancel.prototype.toString = function toString() {
-  return 'Cancel' + (this.message ? ': ' + this.message : '');
-};
-
-Cancel.prototype.__CANCEL__ = true;
-
-module.exports = Cancel;
diff --git a/WebServer/node_modules/axios/lib/cancel/CancelToken.js b/WebServer/node_modules/axios/lib/cancel/CancelToken.js
deleted file mode 100644
index 6b46e6662..000000000
--- a/WebServer/node_modules/axios/lib/cancel/CancelToken.js
+++ /dev/null
@@ -1,57 +0,0 @@
-'use strict';
-
-var Cancel = require('./Cancel');
-
-/**
- * A `CancelToken` is an object that can be used to request cancellation of an operation.
- *
- * @class
- * @param {Function} executor The executor function.
- */
-function CancelToken(executor) {
-  if (typeof executor !== 'function') {
-    throw new TypeError('executor must be a function.');
-  }
-
-  var resolvePromise;
-  this.promise = new Promise(function promiseExecutor(resolve) {
-    resolvePromise = resolve;
-  });
-
-  var token = this;
-  executor(function cancel(message) {
-    if (token.reason) {
-      // Cancellation has already been requested
-      return;
-    }
-
-    token.reason = new Cancel(message);
-    resolvePromise(token.reason);
-  });
-}
-
-/**
- * Throws a `Cancel` if cancellation has been requested.
- */
-CancelToken.prototype.throwIfRequested = function throwIfRequested() {
-  if (this.reason) {
-    throw this.reason;
-  }
-};
-
-/**
- * Returns an object that contains a new `CancelToken` and a function that, when called,
- * cancels the `CancelToken`.
- */
-CancelToken.source = function source() {
-  var cancel;
-  var token = new CancelToken(function executor(c) {
-    cancel = c;
-  });
-  return {
-    token: token,
-    cancel: cancel
-  };
-};
-
-module.exports = CancelToken;
diff --git a/WebServer/node_modules/axios/lib/cancel/isCancel.js b/WebServer/node_modules/axios/lib/cancel/isCancel.js
deleted file mode 100644
index 051f3ae4c..000000000
--- a/WebServer/node_modules/axios/lib/cancel/isCancel.js
+++ /dev/null
@@ -1,5 +0,0 @@
-'use strict';
-
-module.exports = function isCancel(value) {
-  return !!(value && value.__CANCEL__);
-};
diff --git a/WebServer/node_modules/axios/lib/core/Axios.js b/WebServer/node_modules/axios/lib/core/Axios.js
deleted file mode 100644
index 811cb3649..000000000
--- a/WebServer/node_modules/axios/lib/core/Axios.js
+++ /dev/null
@@ -1,86 +0,0 @@
-'use strict';
-
-var utils = require('./../utils');
-var buildURL = require('../helpers/buildURL');
-var InterceptorManager = require('./InterceptorManager');
-var dispatchRequest = require('./dispatchRequest');
-var mergeConfig = require('./mergeConfig');
-
-/**
- * Create a new instance of Axios
- *
- * @param {Object} instanceConfig The default config for the instance
- */
-function Axios(instanceConfig) {
-  this.defaults = instanceConfig;
-  this.interceptors = {
-    request: new InterceptorManager(),
-    response: new InterceptorManager()
-  };
-}
-
-/**
- * Dispatch a request
- *
- * @param {Object} config The config specific for this request (merged with this.defaults)
- */
-Axios.prototype.request = function request(config) {
-  /*eslint no-param-reassign:0*/
-  // Allow for axios('example/url'[, config]) a la fetch API
-  if (typeof config === 'string') {
-    config = arguments[1] || {};
-    config.url = arguments[0];
-  } else {
-    config = config || {};
-  }
-
-  config = mergeConfig(this.defaults, config);
-  config.method = config.method ? config.method.toLowerCase() : 'get';
-
-  // Hook up interceptors middleware
-  var chain = [dispatchRequest, undefined];
-  var promise = Promise.resolve(config);
-
-  this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
-    chain.unshift(interceptor.fulfilled, interceptor.rejected);
-  });
-
-  this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
-    chain.push(interceptor.fulfilled, interceptor.rejected);
-  });
-
-  while (chain.length) {
-    promise = promise.then(chain.shift(), chain.shift());
-  }
-
-  return promise;
-};
-
-Axios.prototype.getUri = function getUri(config) {
-  config = mergeConfig(this.defaults, config);
-  return buildURL(config.url, config.params, config.paramsSerializer).replace(/^\?/, '');
-};
-
-// Provide aliases for supported request methods
-utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
-  /*eslint func-names:0*/
-  Axios.prototype[method] = function(url, config) {
-    return this.request(utils.merge(config || {}, {
-      method: method,
-      url: url
-    }));
-  };
-});
-
-utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
-  /*eslint func-names:0*/
-  Axios.prototype[method] = function(url, data, config) {
-    return this.request(utils.merge(config || {}, {
-      method: method,
-      url: url,
-      data: data
-    }));
-  };
-});
-
-module.exports = Axios;
diff --git a/WebServer/node_modules/axios/lib/core/InterceptorManager.js b/WebServer/node_modules/axios/lib/core/InterceptorManager.js
deleted file mode 100644
index 50d667bb4..000000000
--- a/WebServer/node_modules/axios/lib/core/InterceptorManager.js
+++ /dev/null
@@ -1,52 +0,0 @@
-'use strict';
-
-var utils = require('./../utils');
-
-function InterceptorManager() {
-  this.handlers = [];
-}
-
-/**
- * Add a new interceptor to the stack
- *
- * @param {Function} fulfilled The function to handle `then` for a `Promise`
- * @param {Function} rejected The function to handle `reject` for a `Promise`
- *
- * @return {Number} An ID used to remove interceptor later
- */
-InterceptorManager.prototype.use = function use(fulfilled, rejected) {
-  this.handlers.push({
-    fulfilled: fulfilled,
-    rejected: rejected
-  });
-  return this.handlers.length - 1;
-};
-
-/**
- * Remove an interceptor from the stack
- *
- * @param {Number} id The ID that was returned by `use`
- */
-InterceptorManager.prototype.eject = function eject(id) {
-  if (this.handlers[id]) {
-    this.handlers[id] = null;
-  }
-};
-
-/**
- * Iterate over all the registered interceptors
- *
- * This method is particularly useful for skipping over any
- * interceptors that may have become `null` calling `eject`.
- *
- * @param {Function} fn The function to call for each interceptor
- */
-InterceptorManager.prototype.forEach = function forEach(fn) {
-  utils.forEach(this.handlers, function forEachHandler(h) {
-    if (h !== null) {
-      fn(h);
-    }
-  });
-};
-
-module.exports = InterceptorManager;
diff --git a/WebServer/node_modules/axios/lib/core/createError.js b/WebServer/node_modules/axios/lib/core/createError.js
deleted file mode 100644
index 933680f69..000000000
--- a/WebServer/node_modules/axios/lib/core/createError.js
+++ /dev/null
@@ -1,18 +0,0 @@
-'use strict';
-
-var enhanceError = require('./enhanceError');
-
-/**
- * Create an Error with the specified message, config, error code, request and response.
- *
- * @param {string} message The error message.
- * @param {Object} config The config.
- * @param {string} [code] The error code (for example, 'ECONNABORTED').
- * @param {Object} [request] The request.
- * @param {Object} [response] The response.
- * @returns {Error} The created error.
- */
-module.exports = function createError(message, config, code, request, response) {
-  var error = new Error(message);
-  return enhanceError(error, config, code, request, response);
-};
diff --git a/WebServer/node_modules/axios/lib/core/dispatchRequest.js b/WebServer/node_modules/axios/lib/core/dispatchRequest.js
deleted file mode 100644
index 9ea70f228..000000000
--- a/WebServer/node_modules/axios/lib/core/dispatchRequest.js
+++ /dev/null
@@ -1,86 +0,0 @@
-'use strict';
-
-var utils = require('./../utils');
-var transformData = require('./transformData');
-var isCancel = require('../cancel/isCancel');
-var defaults = require('../defaults');
-var isAbsoluteURL = require('./../helpers/isAbsoluteURL');
-var combineURLs = require('./../helpers/combineURLs');
-
-/**
- * Throws a `Cancel` if cancellation has been requested.
- */
-function throwIfCancellationRequested(config) {
-  if (config.cancelToken) {
-    config.cancelToken.throwIfRequested();
-  }
-}
-
-/**
- * Dispatch a request to the server using the configured adapter.
- *
- * @param {object} config The config that is to be used for the request
- * @returns {Promise} The Promise to be fulfilled
- */
-module.exports = function dispatchRequest(config) {
-  throwIfCancellationRequested(config);
-
-  // Support baseURL config
-  if (config.baseURL && !isAbsoluteURL(config.url)) {
-    config.url = combineURLs(config.baseURL, config.url);
-  }
-
-  // Ensure headers exist
-  config.headers = config.headers || {};
-
-  // Transform request data
-  config.data = transformData(
-    config.data,
-    config.headers,
-    config.transformRequest
-  );
-
-  // Flatten headers
-  config.headers = utils.merge(
-    config.headers.common || {},
-    config.headers[config.method] || {},
-    config.headers || {}
-  );
-
-  utils.forEach(
-    ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
-    function cleanHeaderConfig(method) {
-      delete config.headers[method];
-    }
-  );
-
-  var adapter = config.adapter || defaults.adapter;
-
-  return adapter(config).then(function onAdapterResolution(response) {
-    throwIfCancellationRequested(config);
-
-    // Transform response data
-    response.data = transformData(
-      response.data,
-      response.headers,
-      config.transformResponse
-    );
-
-    return response;
-  }, function onAdapterRejection(reason) {
-    if (!isCancel(reason)) {
-      throwIfCancellationRequested(config);
-
-      // Transform response data
-      if (reason && reason.response) {
-        reason.response.data = transformData(
-          reason.response.data,
-          reason.response.headers,
-          config.transformResponse
-        );
-      }
-    }
-
-    return Promise.reject(reason);
-  });
-};
diff --git a/WebServer/node_modules/axios/lib/core/enhanceError.js b/WebServer/node_modules/axios/lib/core/enhanceError.js
deleted file mode 100644
index 02fbbd6a9..000000000
--- a/WebServer/node_modules/axios/lib/core/enhanceError.js
+++ /dev/null
@@ -1,42 +0,0 @@
-'use strict';
-
-/**
- * Update an Error with the specified config, error code, and response.
- *
- * @param {Error} error The error to update.
- * @param {Object} config The config.
- * @param {string} [code] The error code (for example, 'ECONNABORTED').
- * @param {Object} [request] The request.
- * @param {Object} [response] The response.
- * @returns {Error} The error.
- */
-module.exports = function enhanceError(error, config, code, request, response) {
-  error.config = config;
-  if (code) {
-    error.code = code;
-  }
-
-  error.request = request;
-  error.response = response;
-  error.isAxiosError = true;
-
-  error.toJSON = function() {
-    return {
-      // Standard
-      message: this.message,
-      name: this.name,
-      // Microsoft
-      description: this.description,
-      number: this.number,
-      // Mozilla
-      fileName: this.fileName,
-      lineNumber: this.lineNumber,
-      columnNumber: this.columnNumber,
-      stack: this.stack,
-      // Axios
-      config: this.config,
-      code: this.code
-    };
-  };
-  return error;
-};
diff --git a/WebServer/node_modules/axios/lib/core/mergeConfig.js b/WebServer/node_modules/axios/lib/core/mergeConfig.js
deleted file mode 100644
index 6097a3e58..000000000
--- a/WebServer/node_modules/axios/lib/core/mergeConfig.js
+++ /dev/null
@@ -1,51 +0,0 @@
-'use strict';
-
-var utils = require('../utils');
-
-/**
- * Config-specific merge-function which creates a new config-object
- * by merging two configuration objects together.
- *
- * @param {Object} config1
- * @param {Object} config2
- * @returns {Object} New object resulting from merging config2 to config1
- */
-module.exports = function mergeConfig(config1, config2) {
-  // eslint-disable-next-line no-param-reassign
-  config2 = config2 || {};
-  var config = {};
-
-  utils.forEach(['url', 'method', 'params', 'data'], function valueFromConfig2(prop) {
-    if (typeof config2[prop] !== 'undefined') {
-      config[prop] = config2[prop];
-    }
-  });
-
-  utils.forEach(['headers', 'auth', 'proxy'], function mergeDeepProperties(prop) {
-    if (utils.isObject(config2[prop])) {
-      config[prop] = utils.deepMerge(config1[prop], config2[prop]);
-    } else if (typeof config2[prop] !== 'undefined') {
-      config[prop] = config2[prop];
-    } else if (utils.isObject(config1[prop])) {
-      config[prop] = utils.deepMerge(config1[prop]);
-    } else if (typeof config1[prop] !== 'undefined') {
-      config[prop] = config1[prop];
-    }
-  });
-
-  utils.forEach([
-    'baseURL', 'transformRequest', 'transformResponse', 'paramsSerializer',
-    'timeout', 'withCredentials', 'adapter', 'responseType', 'xsrfCookieName',
-    'xsrfHeaderName', 'onUploadProgress', 'onDownloadProgress', 'maxContentLength',
-    'validateStatus', 'maxRedirects', 'httpAgent', 'httpsAgent', 'cancelToken',
-    'socketPath'
-  ], function defaultToConfig2(prop) {
-    if (typeof config2[prop] !== 'undefined') {
-      config[prop] = config2[prop];
-    } else if (typeof config1[prop] !== 'undefined') {
-      config[prop] = config1[prop];
-    }
-  });
-
-  return config;
-};
diff --git a/WebServer/node_modules/axios/lib/core/settle.js b/WebServer/node_modules/axios/lib/core/settle.js
deleted file mode 100644
index 071d9e3e8..000000000
--- a/WebServer/node_modules/axios/lib/core/settle.js
+++ /dev/null
@@ -1,25 +0,0 @@
-'use strict';
-
-var createError = require('./createError');
-
-/**
- * Resolve or reject a Promise based on response status.
- *
- * @param {Function} resolve A function that resolves the promise.
- * @param {Function} reject A function that rejects the promise.
- * @param {object} response The response.
- */
-module.exports = function settle(resolve, reject, response) {
-  var validateStatus = response.config.validateStatus;
-  if (!validateStatus || validateStatus(response.status)) {
-    resolve(response);
-  } else {
-    reject(createError(
-      'Request failed with status code ' + response.status,
-      response.config,
-      null,
-      response.request,
-      response
-    ));
-  }
-};
diff --git a/WebServer/node_modules/axios/lib/core/transformData.js b/WebServer/node_modules/axios/lib/core/transformData.js
deleted file mode 100644
index e0653620e..000000000
--- a/WebServer/node_modules/axios/lib/core/transformData.js
+++ /dev/null
@@ -1,20 +0,0 @@
-'use strict';
-
-var utils = require('./../utils');
-
-/**
- * Transform the data for a request or a response
- *
- * @param {Object|String} data The data to be transformed
- * @param {Array} headers The headers for the request or response
- * @param {Array|Function} fns A single function or Array of functions
- * @returns {*} The resulting transformed data
- */
-module.exports = function transformData(data, headers, fns) {
-  /*eslint no-param-reassign:0*/
-  utils.forEach(fns, function transform(fn) {
-    data = fn(data, headers);
-  });
-
-  return data;
-};
diff --git a/WebServer/node_modules/axios/lib/defaults.js b/WebServer/node_modules/axios/lib/defaults.js
deleted file mode 100644
index 7cb8a2504..000000000
--- a/WebServer/node_modules/axios/lib/defaults.js
+++ /dev/null
@@ -1,98 +0,0 @@
-'use strict';
-
-var utils = require('./utils');
-var normalizeHeaderName = require('./helpers/normalizeHeaderName');
-
-var DEFAULT_CONTENT_TYPE = {
-  'Content-Type': 'application/x-www-form-urlencoded'
-};
-
-function setContentTypeIfUnset(headers, value) {
-  if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {
-    headers['Content-Type'] = value;
-  }
-}
-
-function getDefaultAdapter() {
-  var adapter;
-  // Only Node.JS has a process variable that is of [[Class]] process
-  if (typeof process !== 'undefined' && Object.prototype.toString.call(process) === '[object process]') {
-    // For node use HTTP adapter
-    adapter = require('./adapters/http');
-  } else if (typeof XMLHttpRequest !== 'undefined') {
-    // For browsers use XHR adapter
-    adapter = require('./adapters/xhr');
-  }
-  return adapter;
-}
-
-var defaults = {
-  adapter: getDefaultAdapter(),
-
-  transformRequest: [function transformRequest(data, headers) {
-    normalizeHeaderName(headers, 'Accept');
-    normalizeHeaderName(headers, 'Content-Type');
-    if (utils.isFormData(data) ||
-      utils.isArrayBuffer(data) ||
-      utils.isBuffer(data) ||
-      utils.isStream(data) ||
-      utils.isFile(data) ||
-      utils.isBlob(data)
-    ) {
-      return data;
-    }
-    if (utils.isArrayBufferView(data)) {
-      return data.buffer;
-    }
-    if (utils.isURLSearchParams(data)) {
-      setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');
-      return data.toString();
-    }
-    if (utils.isObject(data)) {
-      setContentTypeIfUnset(headers, 'application/json;charset=utf-8');
-      return JSON.stringify(data);
-    }
-    return data;
-  }],
-
-  transformResponse: [function transformResponse(data) {
-    /*eslint no-param-reassign:0*/
-    if (typeof data === 'string') {
-      try {
-        data = JSON.parse(data);
-      } catch (e) { /* Ignore */ }
-    }
-    return data;
-  }],
-
-  /**
-   * A timeout in milliseconds to abort a request. If set to 0 (default) a
-   * timeout is not created.
-   */
-  timeout: 0,
-
-  xsrfCookieName: 'XSRF-TOKEN',
-  xsrfHeaderName: 'X-XSRF-TOKEN',
-
-  maxContentLength: -1,
-
-  validateStatus: function validateStatus(status) {
-    return status >= 200 && status < 300;
-  }
-};
-
-defaults.headers = {
-  common: {
-    'Accept': 'application/json, text/plain, */*'
-  }
-};
-
-utils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {
-  defaults.headers[method] = {};
-});
-
-utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
-  defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);
-});
-
-module.exports = defaults;
diff --git a/WebServer/node_modules/axios/lib/helpers/bind.js b/WebServer/node_modules/axios/lib/helpers/bind.js
deleted file mode 100644
index 6147c608e..000000000
--- a/WebServer/node_modules/axios/lib/helpers/bind.js
+++ /dev/null
@@ -1,11 +0,0 @@
-'use strict';
-
-module.exports = function bind(fn, thisArg) {
-  return function wrap() {
-    var args = new Array(arguments.length);
-    for (var i = 0; i < args.length; i++) {
-      args[i] = arguments[i];
-    }
-    return fn.apply(thisArg, args);
-  };
-};
diff --git a/WebServer/node_modules/axios/lib/helpers/buildURL.js b/WebServer/node_modules/axios/lib/helpers/buildURL.js
deleted file mode 100644
index 8c40e4096..000000000
--- a/WebServer/node_modules/axios/lib/helpers/buildURL.js
+++ /dev/null
@@ -1,71 +0,0 @@
-'use strict';
-
-var utils = require('./../utils');
-
-function encode(val) {
-  return encodeURIComponent(val).
-    replace(/%40/gi, '@').
-    replace(/%3A/gi, ':').
-    replace(/%24/g, '$').
-    replace(/%2C/gi, ',').
-    replace(/%20/g, '+').
-    replace(/%5B/gi, '[').
-    replace(/%5D/gi, ']');
-}
-
-/**
- * Build a URL by appending params to the end
- *
- * @param {string} url The base of the url (e.g., http://www.google.com)
- * @param {object} [params] The params to be appended
- * @returns {string} The formatted url
- */
-module.exports = function buildURL(url, params, paramsSerializer) {
-  /*eslint no-param-reassign:0*/
-  if (!params) {
-    return url;
-  }
-
-  var serializedParams;
-  if (paramsSerializer) {
-    serializedParams = paramsSerializer(params);
-  } else if (utils.isURLSearchParams(params)) {
-    serializedParams = params.toString();
-  } else {
-    var parts = [];
-
-    utils.forEach(params, function serialize(val, key) {
-      if (val === null || typeof val === 'undefined') {
-        return;
-      }
-
-      if (utils.isArray(val)) {
-        key = key + '[]';
-      } else {
-        val = [val];
-      }
-
-      utils.forEach(val, function parseValue(v) {
-        if (utils.isDate(v)) {
-          v = v.toISOString();
-        } else if (utils.isObject(v)) {
-          v = JSON.stringify(v);
-        }
-        parts.push(encode(key) + '=' + encode(v));
-      });
-    });
-
-    serializedParams = parts.join('&');
-  }
-
-  if (serializedParams) {
-    var hashmarkIndex = url.indexOf('#');
-    if (hashmarkIndex !== -1) {
-      url = url.slice(0, hashmarkIndex);
-    }
-
-    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
-  }
-
-  return url;
-};
diff --git a/WebServer/node_modules/axios/lib/helpers/combineURLs.js b/WebServer/node_modules/axios/lib/helpers/combineURLs.js
deleted file mode 100644
index f1b58a586..000000000
--- a/WebServer/node_modules/axios/lib/helpers/combineURLs.js
+++ /dev/null
@@ -1,14 +0,0 @@
-'use strict';
-
-/**
- * Creates a new URL by combining the specified URLs
- *
- * @param {string} baseURL The base URL
- * @param {string} relativeURL The relative URL
- * @returns {string} The combined URL
- */
-module.exports = function combineURLs(baseURL, relativeURL) {
-  return relativeURL
-    ? baseURL.replace(/\/+$/, '') + '/' + relativeURL.replace(/^\/+/, '')
-    : baseURL;
-};
diff --git a/WebServer/node_modules/axios/lib/helpers/cookies.js b/WebServer/node_modules/axios/lib/helpers/cookies.js
deleted file mode 100644
index 5a8a66661..000000000
--- a/WebServer/node_modules/axios/lib/helpers/cookies.js
+++ /dev/null
@@ -1,53 +0,0 @@
-'use strict';
-
-var utils = require('./../utils');
-
-module.exports = (
-  utils.isStandardBrowserEnv() ?
-
-  // Standard browser envs support document.cookie
-    (function standardBrowserEnv() {
-      return {
-        write: function write(name, value, expires, path, domain, secure) {
-          var cookie = [];
-          cookie.push(name + '=' + encodeURIComponent(value));
-
-          if (utils.isNumber(expires)) {
-            cookie.push('expires=' + new Date(expires).toGMTString());
-          }
-
-          if (utils.isString(path)) {
-            cookie.push('path=' + path);
-          }
-
-          if (utils.isString(domain)) {
-            cookie.push('domain=' + domain);
-          }
-
-          if (secure === true) {
-            cookie.push('secure');
-          }
-
-          document.cookie = cookie.join('; ');
-        },
-
-        read: function read(name) {
-          var match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
-          return (match ? decodeURIComponent(match[3]) : null);
-        },
-
-        remove: function remove(name) {
-          this.write(name, '', Date.now() - 86400000);
-        }
-      };
-    })() :
-
-  // Non standard browser env (web workers, react-native) lack needed support.
-    (function nonStandardBrowserEnv() {
-      return {
-        write: function write() {},
-        read: function read() { return null; },
-        remove: function remove() {}
-      };
-    })()
-);
diff --git a/WebServer/node_modules/axios/lib/helpers/deprecatedMethod.js b/WebServer/node_modules/axios/lib/helpers/deprecatedMethod.js
deleted file mode 100644
index ed40965ba..000000000
--- a/WebServer/node_modules/axios/lib/helpers/deprecatedMethod.js
+++ /dev/null
@@ -1,24 +0,0 @@
-'use strict';
-
-/*eslint no-console:0*/
-
-/**
- * Supply a warning to the developer that a method they are using
- * has been deprecated.
- *
- * @param {string} method The name of the deprecated method
- * @param {string} [instead] The alternate method to use if applicable
- * @param {string} [docs] The documentation URL to get further details
- */
-module.exports = function deprecatedMethod(method, instead, docs) {
-  try {
-    console.warn(
-      'DEPRECATED method `' + method + '`.' +
-      (instead ? ' Use `' + instead + '` instead.' : '') +
-      ' This method will be removed in a future release.');
-
-    if (docs) {
-      console.warn('For more information about usage see ' + docs);
-    }
-  } catch (e) { /* Ignore */ }
-};
diff --git a/WebServer/node_modules/axios/lib/helpers/isAbsoluteURL.js b/WebServer/node_modules/axios/lib/helpers/isAbsoluteURL.js
deleted file mode 100644
index d33e99275..000000000
--- a/WebServer/node_modules/axios/lib/helpers/isAbsoluteURL.js
+++ /dev/null
@@ -1,14 +0,0 @@
-'use strict';
-
-/**
- * Determines whether the specified URL is absolute
- *
- * @param {string} url The URL to test
- * @returns {boolean} True if the specified URL is absolute, otherwise false
- */
-module.exports = function isAbsoluteURL(url) {
-  // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
-  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
-  // by any combination of letters, digits, plus, period, or hyphen.
-  return /^([a-z][a-z\d\+\-\.]*:)?\/\//i.test(url);
-};
diff --git a/WebServer/node_modules/axios/lib/helpers/isURLSameOrigin.js b/WebServer/node_modules/axios/lib/helpers/isURLSameOrigin.js
deleted file mode 100644
index f1d89ad19..000000000
--- a/WebServer/node_modules/axios/lib/helpers/isURLSameOrigin.js
+++ /dev/null
@@ -1,68 +0,0 @@
-'use strict';
-
-var utils = require('./../utils');
-
-module.exports = (
-  utils.isStandardBrowserEnv() ?
-
-  // Standard browser envs have full support of the APIs needed to test
-  // whether the request URL is of the same origin as current location.
-    (function standardBrowserEnv() {
-      var msie = /(msie|trident)/i.test(navigator.userAgent);
-      var urlParsingNode = document.createElement('a');
-      var originURL;
-
-      /**
-    * Parse a URL to discover it's components
-    *
-    * @param {String} url The URL to be parsed
-    * @returns {Object}
-    */
-      function resolveURL(url) {
-        var href = url;
-
-        if (msie) {
-        // IE needs attribute set twice to normalize properties
-          urlParsingNode.setAttribute('href', href);
-          href = urlParsingNode.href;
-        }
-
-        urlParsingNode.setAttribute('href', href);
-
-        // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
-        return {
-          href: urlParsingNode.href,
-          protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
-          host: urlParsingNode.host,
-          search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
-          hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
-          hostname: urlParsingNode.hostname,
-          port: urlParsingNode.port,
-          pathname: (urlParsingNode.pathname.charAt(0) === '/') ?
-            urlParsingNode.pathname :
-            '/' + urlParsingNode.pathname
-        };
-      }
-
-      originURL = resolveURL(window.location.href);
-
-      /**
-    * Determine if a URL shares the same origin as the current location
-    *
-    * @param {String} requestURL The URL to test
-    * @returns {boolean} True if URL shares the same origin, otherwise false
-    */
-      return function isURLSameOrigin(requestURL) {
-        var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;
-        return (parsed.protocol === originURL.protocol &&
-            parsed.host === originURL.host);
-      };
-    })() :
-
-  // Non standard browser envs (web workers, react-native) lack needed support.
-    (function nonStandardBrowserEnv() {
-      return function isURLSameOrigin() {
-        return true;
-      };
-    })()
-);
diff --git a/WebServer/node_modules/axios/lib/helpers/normalizeHeaderName.js b/WebServer/node_modules/axios/lib/helpers/normalizeHeaderName.js
deleted file mode 100644
index 738c9fe40..000000000
--- a/WebServer/node_modules/axios/lib/helpers/normalizeHeaderName.js
+++ /dev/null
@@ -1,12 +0,0 @@
-'use strict';
-
-var utils = require('../utils');
-
-module.exports = function normalizeHeaderName(headers, normalizedName) {
-  utils.forEach(headers, function processHeader(value, name) {
-    if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {
-      headers[normalizedName] = value;
-      delete headers[name];
-    }
-  });
-};
diff --git a/WebServer/node_modules/axios/lib/helpers/parseHeaders.js b/WebServer/node_modules/axios/lib/helpers/parseHeaders.js
deleted file mode 100644
index 8af2cc7f1..000000000
--- a/WebServer/node_modules/axios/lib/helpers/parseHeaders.js
+++ /dev/null
@@ -1,53 +0,0 @@
-'use strict';
-
-var utils = require('./../utils');
-
-// Headers whose duplicates are ignored by node
-// c.f. https://nodejs.org/api/http.html#http_message_headers
-var ignoreDuplicateOf = [
-  'age', 'authorization', 'content-length', 'content-type', 'etag',
-  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
-  'last-modified', 'location', 'max-forwards', 'proxy-authorization',
-  'referer', 'retry-after', 'user-agent'
-];
-
-/**
- * Parse headers into an object
- *
- * ```
- * Date: Wed, 27 Aug 2014 08:58:49 GMT
- * Content-Type: application/json
- * Connection: keep-alive
- * Transfer-Encoding: chunked
- * ```
- *
- * @param {String} headers Headers needing to be parsed
- * @returns {Object} Headers parsed into an object
- */
-module.exports = function parseHeaders(headers) {
-  var parsed = {};
-  var key;
-  var val;
-  var i;
-
-  if (!headers) { return parsed; }
-
-  utils.forEach(headers.split('\n'), function parser(line) {
-    i = line.indexOf(':');
-    key = utils.trim(line.substr(0, i)).toLowerCase();
-    val = utils.trim(line.substr(i + 1));
-
-    if (key) {
-      if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {
-        return;
-      }
-      if (key === 'set-cookie') {
-        parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);
-      } else {
-        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
-      }
-    }
-  });
-
-  return parsed;
-};
diff --git a/WebServer/node_modules/axios/lib/helpers/spread.js b/WebServer/node_modules/axios/lib/helpers/spread.js
deleted file mode 100644
index 25e3cdd39..000000000
--- a/WebServer/node_modules/axios/lib/helpers/spread.js
+++ /dev/null
@@ -1,27 +0,0 @@
-'use strict';
-
-/**
- * Syntactic sugar for invoking a function and expanding an array for arguments.
- *
- * Common use case would be to use `Function.prototype.apply`.
- *
- *  ```js
- *  function f(x, y, z) {}
- *  var args = [1, 2, 3];
- *  f.apply(null, args);
- *  ```
- *
- * With `spread` this example can be re-written.
- *
- *  ```js
- *  spread(function(x, y, z) {})([1, 2, 3]);
- *  ```
- *
- * @param {Function} callback
- * @returns {Function}
- */
-module.exports = function spread(callback) {
-  return function wrap(arr) {
-    return callback.apply(null, arr);
-  };
-};
diff --git a/WebServer/node_modules/axios/lib/utils.js b/WebServer/node_modules/axios/lib/utils.js
deleted file mode 100644
index 8946055da..000000000
--- a/WebServer/node_modules/axios/lib/utils.js
+++ /dev/null
@@ -1,334 +0,0 @@
-'use strict';
-
-var bind = require('./helpers/bind');
-var isBuffer = require('is-buffer');
-
-/*global toString:true*/
-
-// utils is a library of generic helper functions non-specific to axios
-
-var toString = Object.prototype.toString;
-
-/**
- * Determine if a value is an Array
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is an Array, otherwise false
- */
-function isArray(val) {
-  return toString.call(val) === '[object Array]';
-}
-
-/**
- * Determine if a value is an ArrayBuffer
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is an ArrayBuffer, otherwise false
- */
-function isArrayBuffer(val) {
-  return toString.call(val) === '[object ArrayBuffer]';
-}
-
-/**
- * Determine if a value is a FormData
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is an FormData, otherwise false
- */
-function isFormData(val) {
-  return (typeof FormData !== 'undefined') && (val instanceof FormData);
-}
-
-/**
- * Determine if a value is a view on an ArrayBuffer
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
- */
-function isArrayBufferView(val) {
-  var result;
-  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
-    result = ArrayBuffer.isView(val);
-  } else {
-    result = (val) && (val.buffer) && (val.buffer instanceof ArrayBuffer);
-  }
-  return result;
-}
-
-/**
- * Determine if a value is a String
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is a String, otherwise false
- */
-function isString(val) {
-  return typeof val === 'string';
-}
-
-/**
- * Determine if a value is a Number
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is a Number, otherwise false
- */
-function isNumber(val) {
-  return typeof val === 'number';
-}
-
-/**
- * Determine if a value is undefined
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if the value is undefined, otherwise false
- */
-function isUndefined(val) {
-  return typeof val === 'undefined';
-}
-
-/**
- * Determine if a value is an Object
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is an Object, otherwise false
- */
-function isObject(val) {
-  return val !== null && typeof val === 'object';
-}
-
-/**
- * Determine if a value is a Date
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is a Date, otherwise false
- */
-function isDate(val) {
-  return toString.call(val) === '[object Date]';
-}
-
-/**
- * Determine if a value is a File
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is a File, otherwise false
- */
-function isFile(val) {
-  return toString.call(val) === '[object File]';
-}
-
-/**
- * Determine if a value is a Blob
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is a Blob, otherwise false
- */
-function isBlob(val) {
-  return toString.call(val) === '[object Blob]';
-}
-
-/**
- * Determine if a value is a Function
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is a Function, otherwise false
- */
-function isFunction(val) {
-  return toString.call(val) === '[object Function]';
-}
-
-/**
- * Determine if a value is a Stream
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is a Stream, otherwise false
- */
-function isStream(val) {
-  return isObject(val) && isFunction(val.pipe);
-}
-
-/**
- * Determine if a value is a URLSearchParams object
- *
- * @param {Object} val The value to test
- * @returns {boolean} True if value is a URLSearchParams object, otherwise false
- */
-function isURLSearchParams(val) {
-  return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams;
-}
-
-/**
- * Trim excess whitespace off the beginning and end of a string
- *
- * @param {String} str The String to trim
- * @returns {String} The String freed of excess whitespace
- */
-function trim(str) {
-  return str.replace(/^\s*/, '').replace(/\s*$/, '');
-}
-
-/**
- * Determine if we're running in a standard browser environment
- *
- * This allows axios to run in a web worker, and react-native.
- * Both environments support XMLHttpRequest, but not fully standard globals.
- *
- * web workers:
- *  typeof window -> undefined
- *  typeof document -> undefined
- *
- * react-native:
- *  navigator.product -> 'ReactNative'
- * nativescript
- *  navigator.product -> 'NativeScript' or 'NS'
- */
-function isStandardBrowserEnv() {
-  if (typeof navigator !== 'undefined' && (navigator.product === 'ReactNative' ||
-                                           navigator.product === 'NativeScript' ||
-                                           navigator.product === 'NS')) {
-    return false;
-  }
-  return (
-    typeof window !== 'undefined' &&
-    typeof document !== 'undefined'
-  );
-}
-
-/**
- * Iterate over an Array or an Object invoking a function for each item.
- *
- * If `obj` is an Array callback will be called passing
- * the value, index, and complete array for each item.
- *
- * If 'obj' is an Object callback will be called passing
- * the value, key, and complete object for each property.
- *
- * @param {Object|Array} obj The object to iterate
- * @param {Function} fn The callback to invoke for each item
- */
-function forEach(obj, fn) {
-  // Don't bother if no value provided
-  if (obj === null || typeof obj === 'undefined') {
-    return;
-  }
-
-  // Force an array if not already something iterable
-  if (typeof obj !== 'object') {
-    /*eslint no-param-reassign:0*/
-    obj = [obj];
-  }
-
-  if (isArray(obj)) {
-    // Iterate over array values
-    for (var i = 0, l = obj.length; i < l; i++) {
-      fn.call(null, obj[i], i, obj);
-    }
-  } else {
-    // Iterate over object keys
-    for (var key in obj) {
-      if (Object.prototype.hasOwnProperty.call(obj, key)) {
-        fn.call(null, obj[key], key, obj);
-      }
-    }
-  }
-}
-
-/**
- * Accepts varargs expecting each argument to be an object, then
- * immutably merges the properties of each object and returns result.
- *
- * When multiple objects contain the same key the later object in
- * the arguments list will take precedence.
- *
- * Example:
- *
- * ```js
- * var result = merge({foo: 123}, {foo: 456});
- * console.log(result.foo); // outputs 456
- * ```
- *
- * @param {Object} obj1 Object to merge
- * @returns {Object} Result of all merge properties
- */
-function merge(/* obj1, obj2, obj3, ... */) {
-  var result = {};
-  function assignValue(val, key) {
-    if (typeof result[key] === 'object' && typeof val === 'object') {
-      result[key] = merge(result[key], val);
-    } else {
-      result[key] = val;
-    }
-  }
-
-  for (var i = 0, l = arguments.length; i < l; i++) {
-    forEach(arguments[i], assignValue);
-  }
-  return result;
-}
-
-/**
- * Function equal to merge with the difference being that no reference
- * to original objects is kept.
- *
- * @see merge
- * @param {Object} obj1 Object to merge
- * @returns {Object} Result of all merge properties
- */
-function deepMerge(/* obj1, obj2, obj3, ... */) {
-  var result = {};
-  function assignValue(val, key) {
-    if (typeof result[key] === 'object' && typeof val === 'object') {
-      result[key] = deepMerge(result[key], val);
-    } else if (typeof val === 'object') {
-      result[key] = deepMerge({}, val);
-    } else {
-      result[key] = val;
-    }
-  }
-
-  for (var i = 0, l = arguments.length; i < l; i++) {
-    forEach(arguments[i], assignValue);
-  }
-  return result;
-}
-
-/**
- * Extends object a by mutably adding to it the properties of object b.
- *
- * @param {Object} a The object to be extended
- * @param {Object} b The object to copy properties from
- * @param {Object} thisArg The object to bind function to
- * @return {Object} The resulting value of object a
- */
-function extend(a, b, thisArg) {
-  forEach(b, function assignValue(val, key) {
-    if (thisArg && typeof val === 'function') {
-      a[key] = bind(val, thisArg);
-    } else {
-      a[key] = val;
-    }
-  });
-  return a;
-}
-
-module.exports = {
-  isArray: isArray,
-  isArrayBuffer: isArrayBuffer,
-  isBuffer: isBuffer,
-  isFormData: isFormData,
-  isArrayBufferView: isArrayBufferView,
-  isString: isString,
-  isNumber: isNumber,
-  isObject: isObject,
-  isUndefined: isUndefined,
-  isDate: isDate,
-  isFile: isFile,
-  isBlob: isBlob,
-  isFunction: isFunction,
-  isStream: isStream,
-  isURLSearchParams: isURLSearchParams,
-  isStandardBrowserEnv: isStandardBrowserEnv,
-  forEach: forEach,
-  merge: merge,
-  deepMerge: deepMerge,
-  extend: extend,
-  trim: trim
-};
diff --git a/WebServer/node_modules/axios/package.json b/WebServer/node_modules/axios/package.json
deleted file mode 100644
index 7b7ba43e7..000000000
--- a/WebServer/node_modules/axios/package.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "_args": [
-    [
-      "axios@0.19.0",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "axios@0.19.0",
-  "_id": "axios@0.19.0",
-  "_inBundle": false,
-  "_integrity": "sha512-1uvKqKQta3KBxIz14F2v06AEHZ/dIoeKfbTRkK1E5oqjDnuEerLmYTgJB5AiQZHJcljpg1TuRzdjDR06qNk0DQ==",
-  "_location": "/axios",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "version",
-    "registry": true,
-    "raw": "axios@0.19.0",
-    "name": "axios",
-    "escapedName": "axios",
-    "rawSpec": "0.19.0",
-    "saveSpec": null,
-    "fetchSpec": "0.19.0"
-  },
-  "_requiredBy": [
-    "/"
-  ],
-  "_resolved": "https://registry.npmjs.org/axios/-/axios-0.19.0.tgz",
-  "_spec": "0.19.0",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
-  "author": {
-    "name": "Matt Zabriskie"
-  },
-  "browser": {
-    "./lib/adapters/http.js": "./lib/adapters/xhr.js"
-  },
-  "bugs": {
-    "url": "https://github.com/axios/axios/issues"
-  },
-  "bundlesize": [
-    {
-      "path": "./dist/axios.min.js",
-      "threshold": "5kB"
-    }
-  ],
-  "dependencies": {
-    "follow-redirects": "1.5.10",
-    "is-buffer": "^2.0.2"
-  },
-  "description": "Promise based HTTP client for the browser and node.js",
-  "devDependencies": {
-    "bundlesize": "^0.17.0",
-    "coveralls": "^3.0.0",
-    "es6-promise": "^4.2.4",
-    "grunt": "^1.0.2",
-    "grunt-banner": "^0.6.0",
-    "grunt-cli": "^1.2.0",
-    "grunt-contrib-clean": "^1.1.0",
-    "grunt-contrib-watch": "^1.0.0",
-    "grunt-eslint": "^20.1.0",
-    "grunt-karma": "^2.0.0",
-    "grunt-mocha-test": "^0.13.3",
-    "grunt-ts": "^6.0.0-beta.19",
-    "grunt-webpack": "^1.0.18",
-    "istanbul-instrumenter-loader": "^1.0.0",
-    "jasmine-core": "^2.4.1",
-    "karma": "^1.3.0",
-    "karma-chrome-launcher": "^2.2.0",
-    "karma-coverage": "^1.1.1",
-    "karma-firefox-launcher": "^1.1.0",
-    "karma-jasmine": "^1.1.1",
-    "karma-jasmine-ajax": "^0.1.13",
-    "karma-opera-launcher": "^1.0.0",
-    "karma-safari-launcher": "^1.0.0",
-    "karma-sauce-launcher": "^1.2.0",
-    "karma-sinon": "^1.0.5",
-    "karma-sourcemap-loader": "^0.3.7",
-    "karma-webpack": "^1.7.0",
-    "load-grunt-tasks": "^3.5.2",
-    "minimist": "^1.2.0",
-    "mocha": "^5.2.0",
-    "sinon": "^4.5.0",
-    "typescript": "^2.8.1",
-    "url-search-params": "^0.10.0",
-    "webpack": "^1.13.1",
-    "webpack-dev-server": "^1.14.1"
-  },
-  "homepage": "https://github.com/axios/axios",
-  "keywords": [
-    "xhr",
-    "http",
-    "ajax",
-    "promise",
-    "node"
-  ],
-  "license": "MIT",
-  "main": "index.js",
-  "name": "axios",
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/axios/axios.git"
-  },
-  "scripts": {
-    "build": "NODE_ENV=production grunt build",
-    "coveralls": "cat coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js",
-    "examples": "node ./examples/server.js",
-    "fix": "eslint --fix lib/**/*.js",
-    "postversion": "git push && git push --tags",
-    "preversion": "npm test",
-    "start": "node ./sandbox/server.js",
-    "test": "grunt test && bundlesize",
-    "version": "npm run build && grunt version && git add -A dist && git add CHANGELOG.md bower.json package.json"
-  },
-  "typings": "./index.d.ts",
-  "version": "0.19.0"
-}
diff --git a/WebServer/node_modules/ccxt/js/bitlish.js b/WebServer/node_modules/ccxt/js/bitlish.js
deleted file mode 100644
index e45e529fc..000000000
--- a/WebServer/node_modules/ccxt/js/bitlish.js
+++ /dev/null
@@ -1,378 +0,0 @@
-'use strict';
-
-//  ---------------------------------------------------------------------------
-
-const Exchange = require ('./base/Exchange');
-const { NotSupported } = require ('./base/errors');
-
-//  ---------------------------------------------------------------------------
-
-module.exports = class bitlish extends Exchange {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'bitlish',
-            'name': 'Bitlish',
-            'countries': [ 'GB', 'EU', 'RU' ],
-            'rateLimit': 1500,
-            'version': 'v1',
-            'has': {
-                'CORS': false,
-                'fetchTickers': true,
-                'fetchOHLCV': true,
-                'withdraw': true,
-            },
-            'timeframes': {
-                '1h': 3600,
-            },
-            'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766275-dcfc6c30-5ed3-11e7-839d-00a846385d0b.jpg',
-                'api': 'https://bitlish.com/api',
-                'www': 'https://bitlish.com',
-                'doc': 'https://bitlish.com/api',
-                'fees': 'https://bitlish.com/fees',
-            },
-            'requiredCredentials': {
-                'apiKey': true,
-                'secret': false,
-            },
-            'fees': {
-                'trading': {
-                    'tierBased': false,
-                    'percentage': true,
-                    'taker': 0.3 / 100, // anonymous 0.3%, verified 0.2%
-                    'maker': 0.2 / 100, // anonymous 0.2%, verified 0.1%
-                },
-                'funding': {
-                    'tierBased': false,
-                    'percentage': false,
-                    'withdraw': {
-                        'BTC': 0.001,
-                        'LTC': 0.001,
-                        'DOGE': 0.001,
-                        'ETH': 0.001,
-                        'XMR': 0,
-                        'ZEC': 0.001,
-                        'DASH': 0.0001,
-                        'EUR': 50,
-                    },
-                    'deposit': {
-                        'BTC': 0,
-                        'LTC': 0,
-                        'DOGE': 0,
-                        'ETH': 0,
-                        'XMR': 0,
-                        'ZEC': 0,
-                        'DASH': 0,
-                        'EUR': 0,
-                    },
-                },
-            },
-            'api': {
-                'public': {
-                    'get': [
-                        'instruments',
-                        'ohlcv',
-                        'pairs',
-                        'tickers',
-                        'trades_depth',
-                        'trades_history',
-                    ],
-                    'post': [
-                        'instruments',
-                        'ohlcv',
-                        'pairs',
-                        'tickers',
-                        'trades_depth',
-                        'trades_history',
-                    ],
-                },
-                'private': {
-                    'post': [
-                        'accounts_operations',
-                        'balance',
-                        'cancel_trade',
-                        'cancel_trades_by_ids',
-                        'cancel_all_trades',
-                        'create_bcode',
-                        'create_template_wallet',
-                        'create_trade',
-                        'deposit',
-                        'list_accounts_operations_from_ts',
-                        'list_active_trades',
-                        'list_bcodes',
-                        'list_my_matches_from_ts',
-                        'list_my_trades',
-                        'list_my_trads_from_ts',
-                        'list_payment_methods',
-                        'list_payments',
-                        'redeem_code',
-                        'resign',
-                        'signin',
-                        'signout',
-                        'trade_details',
-                        'trade_options',
-                        'withdraw',
-                        'withdraw_by_id',
-                    ],
-                },
-            },
-            'commonCurrencies': {
-                'DSH': 'DASH',
-                'XDG': 'DOGE',
-            },
-        });
-    }
-
-    async fetchMarkets (params = {}) {
-        const response = await this.publicGetPairs (params);
-        const result = [];
-        const keys = Object.keys (response);
-        for (let i = 0; i < keys.length; i++) {
-            const key = keys[i];
-            const market = response[key];
-            const id = this.safeString (market, 'id');
-            const name = this.safeString (market, 'name');
-            const [ baseId, quoteId ] = name.split ('/');
-            const base = this.safeCurrencyCode (baseId);
-            const quote = this.safeCurrencyCode (quoteId);
-            const symbol = base + '/' + quote;
-            result.push ({
-                'id': id,
-                'symbol': symbol,
-                'base': base,
-                'quote': quote,
-                'baseId': baseId,
-                'quoteId': quoteId,
-                'info': market,
-            });
-        }
-        return result;
-    }
-
-    parseTicker (ticker, market) {
-        const timestamp = this.milliseconds ();
-        let symbol = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        const last = this.safeFloat (ticker, 'last');
-        return {
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': symbol,
-            'high': this.safeFloat (ticker, 'max'),
-            'low': this.safeFloat (ticker, 'min'),
-            'bid': this.safeFloat (ticker, 'bid'),
-            'bidVolume': undefined,
-            'ask': this.safeFloat (ticker, 'ask'),
-            'askVolume': undefined,
-            'vwap': undefined,
-            'open': this.safeFloat (ticker, 'first'),
-            'close': last,
-            'last': last,
-            'previousClose': undefined,
-            'change': undefined,
-            'percentage': this.safeFloat (ticker, 'prc') * 100,
-            'average': undefined,
-            'baseVolume': this.safeFloat (ticker, 'sum'),
-            'quoteVolume': undefined,
-            'info': ticker,
-        };
-    }
-
-    async fetchTickers (symbols = undefined, params = {}) {
-        await this.loadMarkets ();
-        const tickers = await this.publicGetTickers (params);
-        const ids = Object.keys (tickers);
-        const result = {};
-        for (let i = 0; i < ids.length; i++) {
-            const id = ids[i];
-            const market = this.safeValue (this.markets_by_id, id);
-            let symbol = undefined;
-            if (market !== undefined) {
-                symbol = market['symbol'];
-            } else {
-                const baseId = id.slice (0, 3);
-                const quoteId = id.slice (3, 6);
-                const base = this.safeCurrencyCode (baseId);
-                const quote = this.safeCurrencyCode (quoteId);
-                symbol = base + '/' + quote;
-            }
-            const ticker = tickers[id];
-            result[symbol] = this.parseTicker (ticker, market);
-        }
-        return result;
-    }
-
-    async fetchTicker (symbol, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const response = await this.publicGetTickers (params);
-        const marketId = market['id'];
-        return this.parseTicker (response[marketId], market);
-    }
-
-    async fetchOHLCV (symbol, timeframe = '1h', since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        // let market = this.market (symbol);
-        const now = this.seconds ();
-        let start = now - 86400 * 30; // last 30 days
-        if (since !== undefined) {
-            start = parseInt (since / 1000);
-        }
-        const interval = [ start.toString (), undefined ];
-        const request = {
-            'time_range': interval,
-        };
-        return await this.publicPostOhlcv (this.extend (request, params));
-    }
-
-    async fetchOrderBook (symbol, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'pair_id': this.marketId (symbol),
-        };
-        const response = await this.publicGetTradesDepth (this.extend (request, params));
-        let timestamp = undefined;
-        const last = this.safeInteger (response, 'last');
-        if (last !== undefined) {
-            timestamp = parseInt (last / 1000);
-        }
-        return this.parseOrderBook (response, timestamp, 'bid', 'ask', 'price', 'volume');
-    }
-
-    parseTrade (trade, market = undefined) {
-        const side = (trade['dir'] === 'bid') ? 'buy' : 'sell';
-        let symbol = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        let timestamp = this.safeInteger (trade, 'created');
-        if (timestamp !== undefined) {
-            timestamp = parseInt (timestamp / 1000);
-        }
-        const price = this.safeFloat (trade, 'price');
-        const amount = this.safeFloat (trade, 'amount');
-        let cost = undefined;
-        if (amount !== undefined) {
-            if (price !== undefined) {
-                cost = price * amount;
-            }
-        }
-        return {
-            'id': undefined,
-            'info': trade,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': symbol,
-            'order': undefined,
-            'type': undefined,
-            'side': side,
-            'takerOrMaker': undefined,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-            'fee': undefined,
-        };
-    }
-
-    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const response = await this.publicGetTradesHistory (this.extend ({
-            'pair_id': market['id'],
-        }, params));
-        return this.parseTrades (response['list'], market, since, limit);
-    }
-
-    async fetchBalance (params = {}) {
-        await this.loadMarkets ();
-        const response = await this.privatePostBalance (params);
-        const result = { 'info': response };
-        const currencyIds = Object.keys (response);
-        for (let i = 0; i < currencyIds.length; i++) {
-            const currencyId = currencyIds[i];
-            const code = this.safeCurrencyCode (currencyId);
-            const account = this.account ();
-            const balance = this.safeValue (response, currencyId, {});
-            account['free'] = this.safeFloat (balance, 'funds');
-            account['used'] = this.safeFloat (balance, 'holded');
-            result[code] = account;
-        }
-        return this.parseBalance (result);
-    }
-
-    async signIn (params = {}) {
-        const request = {
-            'login': this.login,
-            'passwd': this.password,
-        };
-        return await this.privatePostSignin (this.extend (request, params));
-    }
-
-    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'pair_id': this.marketId (symbol),
-            'dir': (side === 'buy') ? 'bid' : 'ask',
-            'amount': amount,
-        };
-        if (type === 'limit') {
-            request['price'] = price;
-        }
-        const response = await this.privatePostCreateTrade (this.extend (request, params));
-        const id = this.safeString (response, 'id');
-        return {
-            'info': response,
-            'id': id,
-        };
-    }
-
-    async cancelOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'id': id,
-        };
-        return await this.privatePostCancelTrade (this.extend (request, params));
-    }
-
-    async withdraw (code, amount, address, tag = undefined, params = {}) {
-        if (code !== 'BTC') {
-            // they did not document other types...
-            throw new NotSupported (this.id + ' currently supports BTC withdrawals only, until they document other currencies...');
-        }
-        this.checkAddress (address);
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        const request = {
-            'currency': currency['id'],
-            'amount': parseFloat (amount),
-            'account': address,
-            'payment_method': 'bitcoin', // they did not document other types...
-        };
-        const response = await this.privatePostWithdraw (this.extend (request, params));
-        return {
-            'info': response,
-            'id': response['message_id'],
-        };
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = this.urls['api'] + '/' + this.version + '/' + path;
-        if (api === 'public') {
-            if (method === 'GET') {
-                if (Object.keys (params).length) {
-                    url += '?' + this.urlencode (params);
-                }
-            } else {
-                body = this.json (params);
-                headers = { 'Content-Type': 'application/json' };
-            }
-        } else {
-            this.checkRequiredCredentials ();
-            body = this.json (this.extend ({ 'token': this.apiKey }, params));
-            headers = { 'Content-Type': 'application/json' };
-        }
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-};
diff --git a/WebServer/node_modules/ccxt/js/btcchina.js b/WebServer/node_modules/ccxt/js/btcchina.js
deleted file mode 100644
index 9d38bc1fa..000000000
--- a/WebServer/node_modules/ccxt/js/btcchina.js
+++ /dev/null
@@ -1,368 +0,0 @@
-'use strict';
-
-//  ---------------------------------------------------------------------------
-
-const Exchange = require ('./base/Exchange');
-
-//  ---------------------------------------------------------------------------
-
-module.exports = class btcchina extends Exchange {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'btcchina',
-            'name': 'BTCChina',
-            'countries': [ 'CN' ],
-            'rateLimit': 1500,
-            'version': 'v1',
-            'has': {
-                'CORS': false,
-            },
-            'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766368-465b3286-5ed6-11e7-9a11-0f6467e1d82b.jpg',
-                'api': {
-                    'plus': 'https://plus-api.btcchina.com/market',
-                    'public': 'https://data.btcchina.com/data',
-                    'private': 'https://api.btcchina.com/api_trade_v1.php',
-                },
-                'www': 'https://www.btcchina.com',
-                'doc': 'https://www.btcchina.com/apidocs',
-            },
-            'api': {
-                'plus': {
-                    'get': [
-                        'orderbook',
-                        'ticker',
-                        'trade',
-                    ],
-                },
-                'public': {
-                    'get': [
-                        'historydata',
-                        'orderbook',
-                        'ticker',
-                        'trades',
-                    ],
-                },
-                'private': {
-                    'post': [
-                        'BuyIcebergOrder',
-                        'BuyOrder',
-                        'BuyOrder2',
-                        'BuyStopOrder',
-                        'CancelIcebergOrder',
-                        'CancelOrder',
-                        'CancelStopOrder',
-                        'GetAccountInfo',
-                        'getArchivedOrder',
-                        'getArchivedOrders',
-                        'GetDeposits',
-                        'GetIcebergOrder',
-                        'GetIcebergOrders',
-                        'GetMarketDepth',
-                        'GetMarketDepth2',
-                        'GetOrder',
-                        'GetOrders',
-                        'GetStopOrder',
-                        'GetStopOrders',
-                        'GetTransactions',
-                        'GetWithdrawal',
-                        'GetWithdrawals',
-                        'RequestWithdrawal',
-                        'SellIcebergOrder',
-                        'SellOrder',
-                        'SellOrder2',
-                        'SellStopOrder',
-                    ],
-                },
-            },
-            'markets': {
-                'BTC/CNY': { 'id': 'btccny', 'symbol': 'BTC/CNY', 'base': 'BTC', 'quote': 'CNY', 'api': 'public', 'plus': false },
-                'LTC/CNY': { 'id': 'ltccny', 'symbol': 'LTC/CNY', 'base': 'LTC', 'quote': 'CNY', 'api': 'public', 'plus': false },
-                'LTC/BTC': { 'id': 'ltcbtc', 'symbol': 'LTC/BTC', 'base': 'LTC', 'quote': 'BTC', 'api': 'public', 'plus': false },
-                'BCH/CNY': { 'id': 'bcccny', 'symbol': 'BCH/CNY', 'base': 'BCH', 'quote': 'CNY', 'api': 'plus', 'plus': true },
-                'ETH/CNY': { 'id': 'ethcny', 'symbol': 'ETH/CNY', 'base': 'ETH', 'quote': 'CNY', 'api': 'plus', 'plus': true },
-            },
-        });
-    }
-
-    async fetchMarkets (params = {}) {
-        const request = {
-            'market': 'all',
-        };
-        const markets = await this.publicGetTicker (this.extend (request, params));
-        const result = [];
-        const keys = Object.keys (markets);
-        for (let i = 0; i < keys.length; i++) {
-            const key = keys[i];
-            const market = markets[key];
-            const parts = key.split ('_');
-            const id = parts[1];
-            const baseId = id.slice (0, 3);
-            const quoteId = id.slice (3, 6);
-            let base = baseId.toUpperCase ();
-            let quote = quoteId.toUpperCase ();
-            base = this.safeCurrencyCode (base);
-            quote = this.safeCurrencyCode (quote);
-            const symbol = base + '/' + quote;
-            result.push ({
-                'id': id,
-                'symbol': symbol,
-                'base': base,
-                'quote': quote,
-                'baseId': baseId,
-                'quoteId': quoteId,
-                'info': market,
-            });
-        }
-        return result;
-    }
-
-    async fetchBalance (params = {}) {
-        await this.loadMarkets ();
-        const response = await this.privatePostGetAccountInfo (params);
-        const balances = this.safeValue (response, 'result');
-        const result = { 'info': balances };
-        const codes = Object.keys (this.currencies);
-        for (let i = 0; i < codes.length; i++) {
-            const code = codes[i];
-            const currency = this.currency (code);
-            const account = this.account ();
-            const currencyId = currency['id'];
-            if (currencyId in balances['balance']) {
-                account['total'] = parseFloat (balances['balance'][currencyId]['amount']);
-            }
-            if (currencyId in balances['frozen']) {
-                account['used'] = parseFloat (balances['frozen'][currencyId]['amount']);
-            }
-            result[code] = account;
-        }
-        return this.parseBalance (result);
-    }
-
-    createMarketRequest (market) {
-        const request = {};
-        const field = (market['plus']) ? 'symbol' : 'market';
-        request[field] = market['id'];
-        return request;
-    }
-
-    async fetchOrderBook (symbol, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['api'] + 'GetOrderbook';
-        const request = this.createMarketRequest (market);
-        const response = await this[method] (this.extend (request, params));
-        const timestamp = this.safeTimestamp (response, 'date');
-        return this.parseOrderBook (response, timestamp);
-    }
-
-    parseTicker (ticker, market) {
-        const timestamp = this.safeTimestamp (ticker, 'date');
-        const last = this.safeFloat (ticker, 'last');
-        return {
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'high': this.safeFloat (ticker, 'high'),
-            'low': this.safeFloat (ticker, 'low'),
-            'bid': this.safeFloat (ticker, 'buy'),
-            'ask': this.safeFloat (ticker, 'sell'),
-            'vwap': this.safeFloat (ticker, 'vwap'),
-            'open': this.safeFloat (ticker, 'open'),
-            'close': last,
-            'last': last,
-            'previousClose': undefined,
-            'change': undefined,
-            'percentage': undefined,
-            'average': undefined,
-            'baseVolume': this.safeFloat (ticker, 'vol'),
-            'quoteVolume': undefined,
-            'info': ticker,
-        };
-    }
-
-    parseTickerPlus (ticker, market) {
-        const timestamp = this.safeInteger (ticker, 'Timestamp');
-        let symbol = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        return {
-            'symbol': symbol,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'high': this.safeFloat (ticker, 'High'),
-            'low': this.safeFloat (ticker, 'Low'),
-            'bid': this.safeFloat (ticker, 'BidPrice'),
-            'ask': this.safeFloat (ticker, 'AskPrice'),
-            'vwap': undefined,
-            'open': this.safeFloat (ticker, 'Open'),
-            'last': this.safeFloat (ticker, 'Last'),
-            'change': undefined,
-            'percentage': undefined,
-            'average': undefined,
-            'baseVolume': this.safeFloat (ticker, 'Volume24H'),
-            'quoteVolume': undefined,
-            'info': ticker,
-        };
-    }
-
-    async fetchTicker (symbol, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['api'] + 'GetTicker';
-        const request = this.createMarketRequest (market);
-        const response = await this[method] (this.extend (request, params));
-        const ticker = this.safeValue (response, 'ticker');
-        if (market['plus']) {
-            return this.parseTickerPlus (ticker, market);
-        }
-        return this.parseTicker (ticker, market);
-    }
-
-    parseTrade (trade, market) {
-        const timestamp = this.safeTimestamp (trade, 'date');
-        const price = this.safeFloat (trade, 'price');
-        const amount = this.safeFloat (trade, 'amount');
-        let cost = undefined;
-        if (amount !== undefined) {
-            if (price !== undefined) {
-                cost = amount * price;
-            }
-        }
-        const id = this.safeString (trade, 'tid');
-        return {
-            'id': id,
-            'info': trade,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': market['symbol'],
-            'type': undefined,
-            'side': undefined,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-        };
-    }
-
-    parseTradePlus (trade, market) {
-        const timestamp = this.parse8601 (this.safeString (trade, 'timestamp'));
-        const price = this.safeFloat (trade, 'price');
-        const amount = this.safeFloat (trade, 'size');
-        let cost = undefined;
-        if (amount !== undefined) {
-            if (price !== undefined) {
-                cost = amount * price;
-            }
-        }
-        const side = this.safeStringLower (trade, 'side');
-        return {
-            'id': undefined,
-            'info': trade,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': market['symbol'],
-            'type': undefined,
-            'side': side,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-        };
-    }
-
-    parseTradesPlus (trades, market = undefined) {
-        const result = [];
-        for (let i = 0; i < trades.length; i++) {
-            result.push (this.parseTradePlus (trades[i], market));
-        }
-        return result;
-    }
-
-    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        let method = market['api'] + 'GetTrade';
-        const request = this.createMarketRequest (market);
-        if (market['plus']) {
-            const now = this.milliseconds ();
-            request['start_time'] = now - 86400000;
-            request['end_time'] = now;
-        } else {
-            method += 's'; // trades vs trade
-        }
-        const response = await this[method] (this.extend (request, params));
-        if (market['plus']) {
-            return this.parseTradesPlus (response['trades'], market);
-        }
-        return this.parseTrades (response, market, since, limit);
-    }
-
-    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = 'privatePost' + this.capitalize (side) + 'Order2';
-        const request = {};
-        const id = market['id'].toUpperCase ();
-        if (type === 'market') {
-            request['params'] = [ undefined, amount, id ];
-        } else {
-            request['params'] = [ price, amount, id ];
-        }
-        const response = await this[method] (this.extend (request, params));
-        const orderId = this.safeString (response, 'id');
-        return {
-            'info': response,
-            'id': orderId,
-        };
-    }
-
-    async cancelOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = params['market']; // TODO fixme
-        const request = {
-            'params': [ id, market ],
-        };
-        return await this.privatePostCancelOrder (this.extend (request, params));
-    }
-
-    nonce () {
-        return this.microseconds ();
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = this.urls['api'][api] + '/' + path;
-        if (api === 'private') {
-            this.checkRequiredCredentials ();
-            let p = [];
-            if ('params' in params) {
-                p = params['params'];
-            }
-            const nonce = this.nonce ();
-            const request = {
-                'method': path,
-                'id': nonce,
-                'params': p,
-            };
-            p = p.join (',');
-            body = this.json (request);
-            const query = [
-                'tonce=' + nonce,
-                'accesskey=' + this.apiKey,
-                'requestmethod=' + method.toLowerCase (),
-                'id=' + nonce,
-                'method=' + path,
-                'params=' + p,
-            ].join ('&');
-            const signature = this.hmac (this.encode (query), this.encode (this.secret), 'sha1');
-            const auth = this.encode (this.apiKey + ':' + signature);
-            headers = {
-                'Authorization': 'Basic ' + this.stringToBase64 (auth),
-                'Json-Rpc-Tonce': nonce,
-            };
-        } else {
-            if (Object.keys (params).length) {
-                url += '?' + this.urlencode (params);
-            }
-        }
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-};
diff --git a/WebServer/node_modules/ccxt/js/cobinhood.js b/WebServer/node_modules/ccxt/js/cobinhood.js
deleted file mode 100644
index 4a1ac33a6..000000000
--- a/WebServer/node_modules/ccxt/js/cobinhood.js
+++ /dev/null
@@ -1,861 +0,0 @@
-'use strict';
-
-//  ---------------------------------------------------------------------------
-
-const Exchange = require ('./base/Exchange');
-const { ExchangeError, InvalidAddress, InsufficientFunds, InvalidNonce, InvalidOrder, OrderNotFound, PermissionDenied } = require ('./base/errors');
-
-//  ---------------------------------------------------------------------------
-
-module.exports = class cobinhood extends Exchange {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'cobinhood',
-            'name': 'COBINHOOD',
-            'countries': [ 'TW' ],
-            'rateLimit': 1000 / 10,
-            'version': 'v1',
-            'has': {
-                'fetchCurrencies': true,
-                'fetchTickers': true,
-                'fetchOHLCV': true,
-                'fetchOpenOrders': true,
-                'fetchClosedOrders': true,
-                'fetchOrderTrades': true,
-                'fetchOrder': true,
-                'fetchDepositAddress': true,
-                'createDepositAddress': true,
-                'fetchDeposits': true,
-                'fetchWithdrawals': true,
-                'withdraw': true,
-                'fetchMyTrades': true,
-                'editOrder': true,
-            },
-            'requiredCredentials': {
-                'apiKey': true,
-                'secret': false,
-            },
-            'timeframes': {
-                // the first two don't seem to work at all
-                '1m': '1m',
-                '5m': '5m',
-                '15m': '15m',
-                '30m': '30m',
-                '1h': '1h',
-                '3h': '3h',
-                '6h': '6h',
-                '12h': '12h',
-                '1d': '1D',
-                '1w': '7D',
-                '2w': '14D',
-                '1M': '1M',
-            },
-            'urls': {
-                'referral': 'https://cobinhood.com?referrerId=a9d57842-99bb-4d7c-b668-0479a15a458b',
-                'logo': 'https://user-images.githubusercontent.com/1294454/35755576-dee02e5c-0878-11e8-989f-1595d80ba47f.jpg',
-                'api': 'https://api.cobinhood.com',
-                'www': 'https://cobinhood.com',
-                'doc': 'https://cobinhood.github.io/api-public',
-            },
-            'api': {
-                'system': {
-                    'get': [
-                        'info',
-                        'time',
-                        'messages',
-                        'messages/{message_id}',
-                    ],
-                },
-                'admin': {
-                    'get': [
-                        'system/messages',
-                        'system/messages/{message_id}',
-                    ],
-                    'post': [
-                        'system/messages',
-                    ],
-                    'patch': [
-                        'system/messages/{message_id}',
-                    ],
-                    'delete': [
-                        'system/messages/{message_id}',
-                    ],
-                },
-                'public': {
-                    'get': [
-                        'market/fundingbook/precisions/{currency_id}',
-                        'market/fundingbooks/{currency_id}',
-                        'market/tickers',
-                        'market/currencies',
-                        'market/quote_currencies',
-                        'market/trading_pairs',
-                        'market/orderbook/precisions/{trading_pair_id}',
-                        'market/orderbooks/{trading_pair_id}',
-                        'market/stats',
-                        'market/tickers', // fetchTickers
-                        'market/tickers/{trading_pair_id}',
-                        'market/trades/{trading_pair_id}',
-                        'market/trades_history/{trading_pair_id}',
-                        'market/trading_pairs',
-                        'chart/candles/{trading_pair_id}',
-                        'system/time',
-                    ],
-                },
-                'private': {
-                    'get': [
-                        'funding/auto_offerings',
-                        'funding/auto_offerings/{currency_id}',
-                        'funding/funding_history',
-                        'funding/fundings',
-                        'funding/loans',
-                        'funding/loans/{loan_id}',
-                        'trading/orders/{order_id}',
-                        'trading/orders/{order_id}/trades',
-                        'trading/orders',
-                        'trading/order_history',
-                        'trading/positions',
-                        'trading/positions/{trading_pair_id}',
-                        'trading/positions/{trading_pair_id}/claimable_size',
-                        'trading/trades',
-                        'trading/trades/{trade_id}',
-                        'trading/volume',
-                        'wallet/balances',
-                        'wallet/ledger',
-                        'wallet/limits/withdrawal',
-                        'wallet/generic_deposits',
-                        'wallet/generic_deposits/{generic_deposit_id}',
-                        'wallet/generic_withdrawals',
-                        'wallet/generic_withdrawals/{generic_withdrawal_id}',
-                        // older endpoints
-                        'wallet/deposit_addresses',
-                        'wallet/deposit_addresses/iota',
-                        'wallet/withdrawal_addresses',
-                        'wallet/withdrawal_frozen',
-                        'wallet/withdrawals/{withdrawal_id}',
-                        'wallet/withdrawals',
-                        'wallet/deposits/{deposit_id}',
-                        'wallet/deposits',
-                    ],
-                    'patch': [
-                        'trading/positions/{trading_pair_id}',
-                    ],
-                    'post': [
-                        'funding/auto_offerings',
-                        'funding/fundings',
-                        'trading/check_order',
-                        'trading/orders',
-                        // older endpoints
-                        'wallet/deposit_addresses',
-                        'wallet/transfer',
-                        'wallet/withdrawal_addresses',
-                        'wallet/withdrawals',
-                        'wallet/withdrawals/fee',
-                    ],
-                    'put': [
-                        'funding/fundings/{funding_id}',
-                        'trading/orders/{order_id}',
-                    ],
-                    'delete': [
-                        'funding/auto_offerings/{currency_id}',
-                        'funding/fundings/{funding_id}',
-                        'funding/loans/{loan_id}',
-                        'trading/orders/{order_id}',
-                        'trading/positions/{trading_pair_id}',
-                        'wallet/generic_withdrawals/{generic_withdrawal_id}',
-                        'wallet/withdrawal_addresses/{wallet_id}',
-                    ],
-                },
-            },
-            'fees': {
-                'trading': {
-                    'maker': 0.0,
-                    'taker': 0.0,
-                },
-            },
-            'precision': {
-                'amount': 8,
-                'price': 8,
-            },
-            'exceptions': {
-                'insufficient_balance': InsufficientFunds,
-                'invalid_order_size': InvalidOrder,
-                'invalid_nonce': InvalidNonce,
-                'unauthorized_scope': PermissionDenied,
-                'invalid_address': InvalidAddress,
-                'parameter_error': OrderNotFound,
-            },
-            'commonCurrencies': {
-                'SMT': 'SocialMedia.Market',
-                'MTN': 'Motion Token',
-            },
-        });
-    }
-
-    async fetchCurrencies (params = {}) {
-        const response = await this.publicGetMarketCurrencies (params);
-        const currencies = response['result']['currencies'];
-        const result = {};
-        for (let i = 0; i < currencies.length; i++) {
-            const currency = currencies[i];
-            const id = this.safeString (currency, 'currency');
-            const name = this.safeString (currency, 'name');
-            const code = this.safeCurrencyCode (id);
-            const minUnit = this.safeFloat (currency, 'min_unit');
-            result[code] = {
-                'id': id,
-                'code': code,
-                'name': name,
-                'active': true,
-                'fiat': false,
-                'precision': this.precisionFromString (currency['min_unit']),
-                'limits': {
-                    'amount': {
-                        'min': minUnit,
-                        'max': undefined,
-                    },
-                    'price': {
-                        'min': minUnit,
-                        'max': undefined,
-                    },
-                    'deposit': {
-                        'min': minUnit,
-                        'max': undefined,
-                    },
-                    'withdraw': {
-                        'min': minUnit,
-                        'max': undefined,
-                    },
-                },
-                'funding': {
-                    'withdraw': {
-                        'fee': this.safeFloat (currency, 'withdrawal_fee'),
-                    },
-                    'deposit': {
-                        'fee': this.safeFloat (currency, 'deposit_fee'),
-                    },
-                },
-                'info': currency,
-            };
-        }
-        return result;
-    }
-
-    async fetchMarkets (params = {}) {
-        const response = await this.publicGetMarketTradingPairs (params);
-        const markets = this.safeValue (response['result'], 'trading_pairs');
-        const result = [];
-        for (let i = 0; i < markets.length; i++) {
-            const market = markets[i];
-            const id = this.safeString (market, 'id');
-            const [ baseId, quoteId ] = id.split ('-');
-            const base = this.safeCurrencyCode (baseId);
-            const quote = this.safeCurrencyCode (quoteId);
-            const symbol = base + '/' + quote;
-            const precision = {
-                'amount': 8,
-                'price': this.precisionFromString (market['quote_increment']),
-            };
-            const active = this.safeValue (market, 'is_active', true);
-            result.push ({
-                'id': id,
-                'symbol': symbol,
-                'base': base,
-                'quote': quote,
-                'baseId': baseId,
-                'quoteId': quoteId,
-                'active': active,
-                'precision': precision,
-                'limits': {
-                    'amount': {
-                        'min': this.safeFloat (market, 'base_min_size'),
-                        'max': this.safeFloat (market, 'base_max_size'),
-                    },
-                    'price': {
-                        'min': undefined,
-                        'max': undefined,
-                    },
-                    'cost': {
-                        'min': undefined,
-                        'max': undefined,
-                    },
-                },
-                'info': market,
-            });
-        }
-        return result;
-    }
-
-    parseTicker (ticker, market = undefined) {
-        let symbol = undefined;
-        if (market === undefined) {
-            const marketId = this.safeString (ticker, 'trading_pair_id');
-            if (marketId in this.markets_by_id) {
-                market = this.markets_by_id[marketId];
-            } else {
-                const [ baseId, quoteId ] = marketId.split ('-');
-                const base = this.safeCurrencyCode (baseId);
-                const quote = this.safeCurrencyCode (quoteId);
-                symbol = base + '/' + quote;
-            }
-        }
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        const timestamp = this.safeInteger (ticker, 'timestamp');
-        const last = this.safeFloat (ticker, 'last_trade_price');
-        return {
-            'symbol': symbol,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'high': this.safeFloat (ticker, '24h_high'),
-            'low': this.safeFloat (ticker, '24h_low'),
-            'bid': this.safeFloat (ticker, 'highest_bid'),
-            'bidVolume': undefined,
-            'ask': this.safeFloat (ticker, 'lowest_ask'),
-            'askVolume': undefined,
-            'vwap': undefined,
-            'open': undefined,
-            'close': last,
-            'last': last,
-            'previousClose': undefined,
-            'change': this.safeFloat (ticker, 'percentChanged24hr'),
-            'percentage': undefined,
-            'average': undefined,
-            'baseVolume': this.safeFloat (ticker, '24h_volume'),
-            'quoteVolume': this.safeFloat (ticker, 'quote_volume'),
-            'info': ticker,
-        };
-    }
-
-    async fetchTicker (symbol, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'trading_pair_id': market['id'],
-        };
-        const response = await this.publicGetMarketTickersTradingPairId (this.extend (request, params));
-        const ticker = this.safeValue (response['result'], 'ticker');
-        return this.parseTicker (ticker, market);
-    }
-
-    async fetchTickers (symbols = undefined, params = {}) {
-        await this.loadMarkets ();
-        const response = await this.publicGetMarketTickers (params);
-        const tickers = this.safeValue (response['result'], 'tickers');
-        const result = [];
-        for (let i = 0; i < tickers.length; i++) {
-            result.push (this.parseTicker (tickers[i]));
-        }
-        return this.indexBy (result, 'symbol');
-    }
-
-    async fetchOrderBook (symbol, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'trading_pair_id': this.marketId (symbol),
-        };
-        if (limit !== undefined) {
-            request['limit'] = limit; // 100
-        }
-        const response = await this.publicGetMarketOrderbooksTradingPairId (this.extend (request, params));
-        return this.parseOrderBook (response['result']['orderbook'], undefined, 'bids', 'asks', 0, 2);
-    }
-
-    parseTrade (trade, market = undefined) {
-        let symbol = undefined;
-        if (market) {
-            symbol = market['symbol'];
-        }
-        const timestamp = this.safeInteger (trade, 'timestamp');
-        const price = this.safeFloat (trade, 'price');
-        const amount = this.safeFloat (trade, 'size');
-        let cost = undefined;
-        if (price !== undefined) {
-            if (amount !== undefined) {
-                cost = price * amount;
-            }
-        }
-        // you can't determine your side from maker/taker side and vice versa
-        // you can't determine if your order/trade was a maker or a taker based
-        // on just the side of your order/trade
-        // https://github.com/ccxt/ccxt/issues/4300
-        // let side = (trade['maker_side'] === 'bid') ? 'sell' : 'buy';
-        const side = undefined;
-        const id = this.safeString (trade, 'id');
-        return {
-            'info': trade,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': symbol,
-            'id': id,
-            'order': undefined,
-            'type': undefined,
-            'side': side,
-            'takerOrMaker': undefined,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-            'fee': undefined,
-        };
-    }
-
-    async fetchTrades (symbol, since = undefined, limit = 50, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'trading_pair_id': market['id'],
-            'limit': limit, // default 20, but that seems too little
-        };
-        const response = await this.publicGetMarketTradesTradingPairId (this.extend (request, params));
-        const trades = this.safeValue (response['result'], 'trades');
-        return this.parseTrades (trades, market, since, limit);
-    }
-
-    parseOHLCV (ohlcv, market = undefined, timeframe = '5m', since = undefined, limit = undefined) {
-        return [
-            // they say that timestamps are Unix Timestamps in seconds, but in fact those are milliseconds
-            ohlcv['timestamp'],
-            parseFloat (ohlcv['open']),
-            parseFloat (ohlcv['high']),
-            parseFloat (ohlcv['low']),
-            parseFloat (ohlcv['close']),
-            parseFloat (ohlcv['volume']),
-        ];
-    }
-
-    async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        //
-        // they say in their docs that end_time defaults to current server time
-        // but if you don't specify it, their range limits does not allow you to query anything
-        //
-        // they also say that start_time defaults to 0,
-        // but most calls fail if you do not specify any of end_time
-        //
-        // to make things worse, their docs say it should be a Unix Timestamp
-        // but with seconds it fails, so we set milliseconds (somehow it works that way)
-        //
-        const endTime = this.milliseconds ();
-        const request = {
-            'trading_pair_id': market['id'],
-            'timeframe': this.timeframes[timeframe],
-            'end_time': endTime,
-        };
-        if (since !== undefined) {
-            request['start_time'] = since;
-        }
-        const response = await this.publicGetChartCandlesTradingPairId (this.extend (request, params));
-        const ohlcv = this.safeValue (response['result'], 'candles');
-        return this.parseOHLCVs (ohlcv, market, timeframe, since, limit);
-    }
-
-    async fetchBalance (params = {}) {
-        await this.loadMarkets ();
-        const response = await this.privateGetWalletBalances (params);
-        const result = { 'info': response };
-        const balances = this.safeValue (response['result'], 'balances');
-        for (let i = 0; i < balances.length; i++) {
-            const balance = balances[i];
-            const currencyId = this.safeString (balance, 'currency');
-            const code = this.safeCurrencyCode (currencyId);
-            const account = this.account ();
-            account['used'] = this.safeFloat (balance, 'on_order');
-            account['total'] = this.safeFloat (balance, 'total');
-            result[code] = account;
-        }
-        return this.parseBalance (result);
-    }
-
-    parseOrderStatus (status) {
-        const statuses = {
-            'filled': 'closed',
-            'rejected': 'closed',
-            'partially_filled': 'open',
-            'pending_cancellation': 'open',
-            'pending_modification': 'open',
-            'open': 'open',
-            'new': 'open',
-            'queued': 'open',
-            'cancelled': 'canceled',
-            'triggered': 'triggered',
-        };
-        return this.safeString (statuses, status, status);
-    }
-
-    parseOrder (order, market = undefined) {
-        //
-        //     {
-        //         'completed_at': None,
-        //         'eq_price': '0',
-        //         'filled': '0',
-        //         'id': '88426800-beae-4407-b4a1-f65cef693542',
-        //         'price': '0.00000507',
-        //         'side': 'bid',
-        //         'size': '3503.6489',
-        //         'source': 'exchange',
-        //         'state': 'open',
-        //         'timestamp': 1535258403597,
-        //         'trading_pair_id': 'ACT-BTC',
-        //         'type': 'limit',
-        //     }
-        //
-        let symbol = undefined;
-        if (market === undefined) {
-            const marketId = this.safeString2 (order, 'trading_pair', 'trading_pair_id');
-            market = this.safeValue (this.markets_by_id, marketId);
-        }
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        const timestamp = this.safeInteger (order, 'timestamp');
-        const price = this.safeFloat (order, 'price');
-        const average = this.safeFloat (order, 'eq_price');
-        const amount = this.safeFloat (order, 'size');
-        const filled = this.safeFloat (order, 'filled');
-        let remaining = undefined;
-        let cost = undefined;
-        if (filled !== undefined && average !== undefined) {
-            cost = average * filled;
-        } else if (average !== undefined) {
-            cost = average * amount;
-        }
-        if (amount !== undefined) {
-            if (filled !== undefined) {
-                remaining = amount - filled;
-            }
-        }
-        const status = this.parseOrderStatus (this.safeString (order, 'state'));
-        let side = this.safeString (order, 'side');
-        if (side === 'bid') {
-            side = 'buy';
-        } else if (side === 'ask') {
-            side = 'sell';
-        }
-        return {
-            'id': this.safeString (order, 'id'),
-            'datetime': this.iso8601 (timestamp),
-            'timestamp': timestamp,
-            'lastTradeTimestamp': undefined,
-            'status': status,
-            'symbol': symbol,
-            'type': this.safeString (order, 'type'), // market, limit, stop, stop_limit, trailing_stop, fill_or_kill
-            'side': side,
-            'price': price,
-            'cost': cost,
-            'average': average,
-            'amount': amount,
-            'filled': filled,
-            'remaining': remaining,
-            'trades': undefined,
-            'fee': undefined,
-            'info': order,
-        };
-    }
-
-    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        side = (side === 'sell') ? 'ask' : 'bid';
-        const request = {
-            'trading_pair_id': market['id'],
-            'type': type, // market, limit, stop, stop_limit
-            'side': side,
-            'size': this.amountToPrecision (symbol, amount),
-        };
-        if (type !== 'market') {
-            request['price'] = this.priceToPrecision (symbol, price);
-        }
-        const response = await this.privatePostTradingOrders (this.extend (request, params));
-        const order = this.parseOrder (response['result']['order'], market);
-        const id = order['id'];
-        this.orders[id] = order;
-        return order;
-    }
-
-    async editOrder (id, symbol, type, side, amount, price, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'order_id': id,
-            'price': this.priceToPrecision (symbol, price),
-            'size': this.amountToPrecision (symbol, amount),
-        };
-        const response = await this.privatePutTradingOrdersOrderId (this.extend (request, params));
-        return this.parseOrder (this.extend (response, {
-            'id': id,
-        }));
-    }
-
-    async cancelOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'order_id': id,
-        };
-        const response = await this.privateDeleteTradingOrdersOrderId (this.extend (request, params));
-        return this.parseOrder (this.extend (response, {
-            'id': id,
-        }));
-    }
-
-    async fetchOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'order_id': id.toString (),
-        };
-        const response = await this.privateGetTradingOrdersOrderId (this.extend (request, params));
-        return this.parseOrder (response['result']['order']);
-    }
-
-    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const result = await this.privateGetTradingOrders (params);
-        const orders = this.parseOrders (result['result']['orders'], undefined, since, limit);
-        if (symbol !== undefined) {
-            return this.filterBySymbolSinceLimit (orders, symbol, since, limit);
-        }
-        return this.filterBySinceLimit (orders, since, limit);
-    }
-
-    async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {};
-        let market = undefined;
-        if (symbol !== undefined) {
-            market = this.market (symbol);
-            request['trading_pair_id'] = market['id'];
-        }
-        if (limit !== undefined) {
-            request['limit'] = limit; // default 50, max 100
-        }
-        const response = await this.privateGetTradingOrderHistory (this.extend (request, params));
-        const orders = this.parseOrders (response['result']['orders'], market, since, limit);
-        if (symbol !== undefined) {
-            return this.filterBySymbolSinceLimit (orders, symbol, since, limit);
-        }
-        return this.filterBySinceLimit (orders, since, limit);
-    }
-
-    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'order_id': id,
-        };
-        const response = await this.privateGetTradingOrdersOrderIdTrades (this.extend (request, params));
-        const market = (symbol === undefined) ? undefined : this.market (symbol);
-        return this.parseTrades (response['result']['trades'], market);
-    }
-
-    async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {};
-        if (symbol !== undefined) {
-            request['trading_pair_id'] = market['id'];
-        }
-        const response = await this.privateGetTradingTrades (this.extend (request, params));
-        return this.parseTrades (response['result']['trades'], market, since, limit);
-    }
-
-    async createDepositAddress (code, params = {}) {
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        // 'ledger_type' is required, see: https://cobinhood.github.io/api-public/#create-new-deposit-address
-        const ledgerType = this.safeString (params, 'ledger_type', 'exchange');
-        const request = {
-            'currency': currency['id'],
-            'ledger_type': ledgerType,
-        };
-        const response = await this.privatePostWalletDepositAddresses (this.extend (request, params));
-        const address = this.safeString (response['result']['deposit_address'], 'address');
-        const tag = this.safeString (response['result']['deposit_address'], 'memo');
-        this.checkAddress (address);
-        return {
-            'currency': code,
-            'address': address,
-            'tag': tag,
-            'info': response,
-        };
-    }
-
-    async fetchDepositAddress (code, params = {}) {
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        const request = {
-            'currency': currency['id'],
-        };
-        const response = await this.privateGetWalletDepositAddresses (this.extend (request, params));
-        //
-        //     { success:    true,
-        //        result: { deposit_addresses: [ {       address: "abcdefg",
-        //                                         blockchain_id: "eosio",
-        //                                            created_at:  1536768050235,
-        //                                              currency: "EOS",
-        //                                                  memo: "12345678",
-        //                                                  type: "exchange"      } ] } }
-        //
-        const addresses = this.safeValue (response['result'], 'deposit_addresses', []);
-        let address = undefined;
-        let tag = undefined;
-        if (addresses.length > 0) {
-            address = this.safeString (addresses[0], 'address');
-            tag = this.safeString2 (addresses[0], 'memo', 'tag');
-        }
-        this.checkAddress (address);
-        return {
-            'currency': code,
-            'address': address,
-            'tag': tag,
-            'info': response,
-        };
-    }
-
-    async withdraw (code, amount, address, tag = undefined, params = {}) {
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        const request = {
-            'currency': currency['id'],
-            'amount': amount,
-            'address': address,
-        };
-        if (tag !== undefined) {
-            request['memo'] = tag;
-        }
-        const response = await this.privatePostWalletWithdrawals (this.extend (request, params));
-        return {
-            'id': undefined,
-            'info': response,
-        };
-    }
-
-    async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        if (code === undefined) {
-            throw new ExchangeError (this.id + ' fetchDeposits() requires a currency code argument');
-        }
-        const currency = this.currency (code);
-        const request = {
-            'currency': currency['id'],
-        };
-        const response = await this.privateGetWalletDeposits (this.extend (request, params));
-        return this.parseTransactions (response['result']['deposits'], currency);
-    }
-
-    async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        if (code === undefined) {
-            throw new ExchangeError (this.id + ' fetchWithdrawals() requires a currency code argument');
-        }
-        const currency = this.currency (code);
-        const request = {
-            'currency': currency['id'],
-        };
-        const response = await this.privateGetWalletWithdrawals (this.extend (request, params));
-        return this.parseTransactions (response['result']['withdrawals'], currency);
-    }
-
-    parseTransactionStatus (status) {
-        const statuses = {
-            'tx_pending_two_factor_auth': 'pending',
-            'tx_pending_email_auth': 'pending',
-            'tx_pending_approval': 'pending',
-            'tx_approved': 'pending',
-            'tx_processing': 'pending',
-            'tx_pending': 'pending',
-            'tx_sent': 'pending',
-            'tx_cancelled': 'canceled',
-            'tx_timeout': 'failed',
-            'tx_invalid': 'failed',
-            'tx_rejected': 'failed',
-            'tx_confirmed': 'ok',
-        };
-        return this.safeString (statuses, status, status);
-    }
-
-    parseTransaction (transaction, currency = undefined) {
-        const timestamp = this.safeInteger (transaction, 'created_at');
-        const currencyId = this.safeString (transaction, 'currency');
-        const code = this.safeCurrencyCode (currencyId, currency);
-        let id = undefined;
-        const withdrawalId = this.safeString (transaction, 'withdrawal_id');
-        const depositId = this.safeString (transaction, 'deposit_id');
-        let type = undefined;
-        let address = undefined;
-        if (withdrawalId !== undefined) {
-            type = 'withdrawal';
-            id = withdrawalId;
-            address = this.safeString (transaction, 'to_address');
-        } else if (depositId !== undefined) {
-            type = 'deposit';
-            id = depositId;
-            address = this.safeString (transaction, 'from_address');
-        }
-        const additionalInfo = this.safeValue (transaction, 'additional_info', {});
-        const tag = this.safeString (additionalInfo, 'memo');
-        return {
-            'info': transaction,
-            'id': id,
-            'txid': this.safeString (transaction, 'txhash'),
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'address': address,
-            'tag': tag, // refix it properly
-            'type': type,
-            'amount': this.safeFloat (transaction, 'amount'),
-            'currency': code,
-            'status': this.parseTransactionStatus (transaction['status']),
-            'updated': undefined,
-            'fee': {
-                'cost': this.safeFloat (transaction, 'fee'),
-                'rate': undefined,
-            },
-        };
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = this.urls['api'] + '/' + this.version + '/' + this.implodeParams (path, params);
-        let query = this.omit (params, this.extractParams (path));
-        headers = {};
-        if (api === 'private') {
-            this.checkRequiredCredentials ();
-            // headers['device_id'] = this.apiKey;
-            headers['nonce'] = this.nonce ().toString ();
-            headers['Authorization'] = this.apiKey;
-        }
-        if (method === 'GET') {
-            query = this.urlencode (query);
-            if (query.length) {
-                url += '?' + query;
-            }
-        } else {
-            headers['Content-type'] = 'application/json; charset=UTF-8';
-            body = this.json (query);
-        }
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-
-    handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
-        if (code < 400 || code >= 600) {
-            return;
-        }
-        if (body[0] !== '{') {
-            throw new ExchangeError (this.id + ' ' + body);
-        }
-        const feedback = this.id + ' ' + this.json (response);
-        const errorCode = this.safeValue (response['error'], 'error_code');
-        if (method === 'DELETE' || method === 'GET') {
-            if (errorCode === 'parameter_error') {
-                if (url.indexOf ('trading/orders/') >= 0) {
-                    // Cobinhood returns vague "parameter_error" on fetchOrder() and cancelOrder() calls
-                    // for invalid order IDs as well as orders that are not "open"
-                    throw new InvalidOrder (feedback);
-                }
-            }
-        }
-        this.throwExactlyMatchedException (this.exceptions, errorCode, feedback);
-        throw new ExchangeError (feedback);
-    }
-
-    nonce () {
-        return this.milliseconds ();
-    }
-};
diff --git a/WebServer/node_modules/ccxt/js/deribit.js b/WebServer/node_modules/ccxt/js/deribit.js
deleted file mode 100644
index 9027c5bf1..000000000
--- a/WebServer/node_modules/ccxt/js/deribit.js
+++ /dev/null
@@ -1,760 +0,0 @@
-'use strict';
-
-//  ---------------------------------------------------------------------------
-
-const Exchange = require ('./base/Exchange');
-const { TICK_SIZE } = require ('./base/functions/number');
-const { AuthenticationError, ExchangeError, ArgumentsRequired, PermissionDenied, InvalidOrder, OrderNotFound, DDoSProtection, NotSupported, ExchangeNotAvailable, InsufficientFunds } = require ('./base/errors');
-
-//  ---------------------------------------------------------------------------
-
-module.exports = class deribit extends Exchange {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'deribit',
-            'name': 'Deribit',
-            'countries': [ 'NL' ], // Netherlands
-            'version': 'v1',
-            'userAgent': undefined,
-            'rateLimit': 2000,
-            'has': {
-                'CORS': true,
-                'editOrder': true,
-                'fetchOrder': true,
-                'fetchOrders': false,
-                'fetchOpenOrders': true,
-                'fetchClosedOrders': true,
-                'fetchMyTrades': true,
-                'fetchTickers': false,
-            },
-            'urls': {
-                'test': 'https://test.deribit.com',
-                'logo': 'https://user-images.githubusercontent.com/1294454/41933112-9e2dd65a-798b-11e8-8440-5bab2959fcb8.jpg',
-                'api': 'https://www.deribit.com',
-                'www': 'https://www.deribit.com',
-                'doc': [
-                    'https://docs.deribit.com',
-                    'https://github.com/deribit',
-                ],
-                'fees': 'https://www.deribit.com/pages/information/fees',
-                'referral': 'https://www.deribit.com/reg-1189.4038',
-            },
-            'api': {
-                'public': {
-                    'get': [
-                        'ping',
-                        'test',
-                        'getinstruments',
-                        'index',
-                        'getcurrencies',
-                        'getorderbook',
-                        'getlasttrades',
-                        'getsummary',
-                        'stats',
-                        'getannouncments',
-                    ],
-                },
-                'private': {
-                    'get': [
-                        'account',
-                        'getopenorders',
-                        'positions',
-                        'orderhistory',
-                        'orderstate',
-                        'tradehistory',
-                        'newannouncements',
-                    ],
-                    'post': [
-                        'buy',
-                        'sell',
-                        'edit',
-                        'cancel',
-                        'cancelall',
-                    ],
-                },
-            },
-            'exceptions': {
-                // 0 or absent Success, No error
-                '9999': PermissionDenied,   // "api_not_enabled" User didn't enable API for the Account
-                '10000': AuthenticationError,  // "authorization_required" Authorization issue, invalid or absent signature etc
-                '10001': ExchangeError,     // "error" Some general failure, no public information available
-                '10002': InvalidOrder,      // "qty_too_low" Order quantity is too low
-                '10003': InvalidOrder,      // "order_overlap" Rejection, order overlap is found and self-trading is not enabled
-                '10004': OrderNotFound,     // "order_not_found" Attempt to operate with order that can't be found by specified id
-                '10005': InvalidOrder,      // "price_too_low <Limit>" Price is too low, <Limit> defines current limit for the operation
-                '10006': InvalidOrder,      // "price_too_low4idx <Limit>" Price is too low for current index, <Limit> defines current bottom limit for the operation
-                '10007': InvalidOrder, // "price_too_high <Limit>" Price is too high, <Limit> defines current up limit for the operation
-                '10008': InvalidOrder, // "price_too_high4idx <Limit>" Price is too high for current index, <Limit> defines current up limit for the operation
-                '10009': InsufficientFunds, // "not_enough_funds" Account has not enough funds for the operation
-                '10010': OrderNotFound, // "already_closed" Attempt of doing something with closed order
-                '10011': InvalidOrder, // "price_not_allowed" This price is not allowed for some reason
-                '10012': InvalidOrder, // "book_closed" Operation for instrument which order book had been closed
-                '10013': PermissionDenied, // "pme_max_total_open_orders <Limit>" Total limit of open orders has been exceeded, it is applicable for PME users
-                '10014': PermissionDenied, // "pme_max_future_open_orders <Limit>" Limit of count of futures' open orders has been exceeded, it is applicable for PME users
-                '10015': PermissionDenied, // "pme_max_option_open_orders <Limit>" Limit of count of options' open orders has been exceeded, it is applicable for PME users
-                '10016': PermissionDenied, // "pme_max_future_open_orders_size <Limit>" Limit of size for futures has been exceeded, it is applicable for PME users
-                '10017': PermissionDenied, // "pme_max_option_open_orders_size <Limit>" Limit of size for options has been exceeded, it is applicable for PME users
-                '10019': PermissionDenied, // "locked_by_admin" Trading is temporary locked by admin
-                '10020': ExchangeError, // "invalid_or_unsupported_instrument" Instrument name is not valid
-                '10022': InvalidOrder, // "invalid_quantity" quantity was not recognized as a valid number
-                '10023': InvalidOrder, // "invalid_price" price was not recognized as a valid number
-                '10024': InvalidOrder, // "invalid_max_show" max_show parameter was not recognized as a valid number
-                '10025': InvalidOrder, // "invalid_order_id" Order id is missing or its format was not recognized as valid
-                '10026': InvalidOrder, // "price_precision_exceeded" Extra precision of the price is not supported
-                '10027': InvalidOrder, // "non_integer_contract_amount" Futures contract amount was not recognized as integer
-                '10028': DDoSProtection, // "too_many_requests" Allowed request rate has been exceeded
-                '10029': OrderNotFound, // "not_owner_of_order" Attempt to operate with not own order
-                '10030': ExchangeError, // "must_be_websocket_request" REST request where Websocket is expected
-                '10031': ExchangeError, // "invalid_args_for_instrument" Some of arguments are not recognized as valid
-                '10032': InvalidOrder, // "whole_cost_too_low" Total cost is too low
-                '10033': NotSupported, // "not_implemented" Method is not implemented yet
-                '10034': InvalidOrder, // "stop_price_too_high" Stop price is too high
-                '10035': InvalidOrder, // "stop_price_too_low" Stop price is too low
-                '11035': InvalidOrder, // "no_more_stops <Limit>" Allowed amount of stop orders has been exceeded
-                '11036': InvalidOrder, // "invalid_stoppx_for_index_or_last" Invalid StopPx (too high or too low) as to current index or market
-                '11037': InvalidOrder, // "outdated_instrument_for_IV_order" Instrument already not available for trading
-                '11038': InvalidOrder, // "no_adv_for_futures" Advanced orders are not available for futures
-                '11039': InvalidOrder, // "no_adv_postonly" Advanced post-only orders are not supported yet
-                '11040': InvalidOrder, // "impv_not_in_range 0..499%" Implied volatility is out of allowed range
-                '11041': InvalidOrder, // "not_adv_order" Advanced order properties can't be set if the order is not advanced
-                '11042': PermissionDenied, // "permission_denied" Permission for the operation has been denied
-                '11044': OrderNotFound, // "not_open_order" Attempt to do open order operations with the not open order
-                '11045': ExchangeError, // "invalid_event" Event name has not been recognized
-                '11046': ExchangeError, // "outdated_instrument" At several minutes to instrument expiration, corresponding advanced implied volatility orders are not allowed
-                '11047': ExchangeError, // "unsupported_arg_combination" The specified combination of arguments is not supported
-                '11048': ExchangeError, // "not_on_this_server" The requested operation is not available on this server.
-                '11050': ExchangeError, // "invalid_request" Request has not been parsed properly
-                '11051': ExchangeNotAvailable, // "system_maintenance" System is under maintenance
-                '11030': ExchangeError, // "other_reject <Reason>" Some rejects which are not considered as very often, more info may be specified in <Reason>
-                '11031': ExchangeError, // "other_error <Error>" Some errors which are not considered as very often, more info may be specified in <Error>
-            },
-            'precisionMode': TICK_SIZE,
-            'options': {
-                'fetchTickerQuotes': true,
-            },
-        });
-    }
-
-    async fetchMarkets (params = {}) {
-        const response = await this.publicGetGetinstruments (params);
-        const markets = this.safeValue (response, 'result');
-        const result = [];
-        for (let i = 0; i < markets.length; i++) {
-            const market = markets[i];
-            const id = this.safeString (market, 'instrumentName');
-            const baseId = this.safeString (market, 'baseCurrency');
-            const quoteId = this.safeString (market, 'currency');
-            const base = this.safeCurrencyCode (baseId);
-            const quote = this.safeCurrencyCode (quoteId);
-            const type = this.safeString (market, 'kind');
-            const future = (type === 'future');
-            const option = (type === 'option');
-            const active = this.safeValue (market, 'isActive');
-            const precision = {
-                'amount': this.safeFloat (market, 'minTradeAmount'),
-                'price': this.safeFloat (market, 'tickSize'),
-            };
-            result.push ({
-                'id': id,
-                'symbol': id,
-                'base': base,
-                'quote': quote,
-                'active': active,
-                'precision': precision,
-                'limits': {
-                    'amount': {
-                        'min': this.safeFloat (market, 'minTradeAmount'),
-                        'max': undefined,
-                    },
-                    'price': {
-                        'min': this.safeFloat (market, 'tickSize'),
-                        'max': undefined,
-                    },
-                    'cost': {
-                        'min': undefined,
-                        'max': undefined,
-                    },
-                },
-                'type': type,
-                'spot': false,
-                'future': future,
-                'option': option,
-                'info': market,
-            });
-        }
-        return result;
-    }
-
-    async fetchBalance (params = {}) {
-        await this.loadMarkets ();
-        const response = await this.privateGetAccount (params);
-        //
-        //     {
-        //         "usOut":1569048827943520,
-        //         "usIn":1569048827943020,
-        //         "usDiff":500,
-        //         "testnet":false,
-        //         "success":true,
-        //         "result":{
-        //             "equity":2e-9,
-        //             "maintenanceMargin":0.0,
-        //             "initialMargin":0.0,
-        //             "availableFunds":0.0,
-        //             "balance":0.0,
-        //             "marginBalance":0.0,
-        //             "SUPL":0.0,
-        //             "SRPL":0.0,
-        //             "PNL":0.0,
-        //             "optionsPNL":0.0,
-        //             "optionsSUPL":0.0,
-        //             "optionsSRPL":0.0,
-        //             "optionsD":0.0,
-        //             "optionsG":0.0,
-        //             "optionsV":0.0,
-        //             "optionsTh":0.0,
-        //             "futuresPNL":0.0,
-        //             "futuresSUPL":0.0,
-        //             "futuresSRPL":0.0,
-        //             "deltaTotal":0.0,
-        //             "sessionFunding":0.0,
-        //             "depositAddress":"13tUtNsJSZa1F5GeCmwBywVrymHpZispzw",
-        //             "currency":"BTC"
-        //         },
-        //         "message":""
-        //     }
-        //
-        const result = {
-            'info': response,
-        };
-        const balance = this.safeValue (response, 'result', {});
-        const currencyId = this.safeString (balance, 'currency');
-        const code = this.safeCurrencyCode (currencyId);
-        const account = this.account ();
-        account['free'] = this.safeFloat (balance, 'availableFunds');
-        account['used'] = this.safeFloat (balance, 'maintenanceMargin');
-        account['total'] = this.safeFloat (balance, 'equity');
-        result[code] = account;
-        return this.parseBalance (result);
-    }
-
-    async fetchDepositAddress (code, params = {}) {
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        const request = {
-            'currency': currency['id'],
-        };
-        const response = await this.privateGetAccount (this.extend (request, params));
-        const result = this.safeValue (response, 'result', {});
-        const address = this.safeString (result, 'depositAddress');
-        return {
-            'currency': code,
-            'address': address,
-            'tag': undefined,
-            'info': response,
-        };
-    }
-
-    parseTicker (ticker, market = undefined) {
-        //
-        //     {
-        //         "currentFunding":0.0,
-        //         "funding8h":0.0000017213784611422821,
-        //         "instrumentName":"BTC-PERPETUAL",
-        //         "openInterest":7600223,
-        //         "openInterestAmount":76002230,
-        //         "high":7665.5,
-        //         "low":7450.0,
-        //         "volume":12964792.0,
-        //         "volumeUsd":129647920,
-        //         "volumeBtc":17214.63595316,
-        //         "last":7520.5,
-        //         "bidPrice":7520.0,
-        //         "askPrice":7520.5,
-        //         "midPrice":7520.25,
-        //         "estDelPrice":"",
-        //         "markPrice":7521.0,
-        //         "created":"2019-12-09 15:17:00 GMT"
-        //     }
-        //
-        const timestamp = this.safeInteger (ticker, 'created');
-        let symbol = undefined;
-        const marketId = this.safeString (ticker, 'instrumentName');
-        if (marketId in this.markets_by_id) {
-            market = this.markets_by_id[marketId];
-        }
-        if ((symbol === undefined) && (market !== undefined)) {
-            symbol = market['symbol'];
-        }
-        const last = this.safeFloat (ticker, 'last');
-        return {
-            'symbol': symbol,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'high': this.safeFloat (ticker, 'high'),
-            'low': this.safeFloat (ticker, 'low'),
-            'bid': this.safeFloat (ticker, 'bidPrice'),
-            'bidVolume': undefined,
-            'ask': this.safeFloat (ticker, 'askPrice'),
-            'askVolume': undefined,
-            'vwap': undefined,
-            'open': undefined,
-            'close': last,
-            'last': last,
-            'previousClose': undefined,
-            'change': undefined,
-            'percentage': undefined,
-            'average': undefined,
-            'baseVolume': undefined,
-            'quoteVolume': this.safeFloat (ticker, 'volume'),
-            'info': ticker,
-        };
-    }
-
-    async fetchTicker (symbol, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'instrument': market['id'],
-        };
-        const response = await this.publicGetGetsummary (this.extend (request, params));
-        //
-        //     {
-        //         "usOut":1575904620528163,
-        //         "usIn":1575904620528129,
-        //         "usDiff":34,
-        //         "testnet":false,
-        //         "success":true,
-        //         "result": {
-        //             "currentFunding":0.0,
-        //             "funding8h":0.0000017213784611422821,
-        //             "instrumentName":"BTC-PERPETUAL",
-        //             "openInterest":7600223,
-        //             "openInterestAmount":76002230,
-        //             "high":7665.5,
-        //             "low":7450.0,
-        //             "volume":12964792.0,
-        //             "volumeUsd":129647920,
-        //             "volumeBtc":17214.63595316,
-        //             "last":7520.5,
-        //             "bidPrice":7520.0,
-        //             "askPrice":7520.5,
-        //             "midPrice":7520.25,
-        //             "estDelPrice":"",
-        //             "markPrice":7521.0,
-        //             "created":"2019-12-09 15:17:00 GMT"
-        //         },
-        //         "message":""
-        //     }
-        //
-        return this.parseTicker (response['result'], market);
-    }
-
-    parseTrade (trade, market = undefined) {
-        //
-        // fetchTrades (public)
-        //
-        //     {
-        //         "tradeId":23197559,
-        //         "instrument":"BTC-28JUN19",
-        //         "timeStamp":1559643011379,
-        //         "tradeSeq":1997200,
-        //         "quantity":2,
-        //         "amount":20.0,
-        //         "price":8010.0,
-        //         "direction":"sell",
-        //         "tickDirection":2,
-        //         "indexPrice":7969.01
-        //     }
-        //
-        // fetchMyTrades (private)
-        //
-        //     {
-        //         "quantity":54,
-        //         "amount":540.0,
-        //         "tradeId":23087297,
-        //         "instrument":"BTC-PERPETUAL",
-        //         "timeStamp":1559604178803,
-        //         "tradeSeq":8265011,
-        //         "price":8213.0,
-        //         "side":"sell",
-        //         "orderId":12373631800,
-        //         "matchingId":0,
-        //         "liquidity":"T",
-        //         "fee":0.000049312,
-        //         "feeCurrency":"BTC",
-        //         "tickDirection":3,
-        //         "indexPrice":8251.94,
-        //         "selfTrade":false
-        //     }
-        //
-        const id = this.safeString (trade, 'tradeId');
-        const orderId = this.safeString (trade, 'orderId');
-        let symbol = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        const timestamp = this.safeInteger (trade, 'timeStamp');
-        const side = this.safeString2 (trade, 'side', 'direction');
-        const price = this.safeFloat (trade, 'price');
-        const amount = this.safeFloat (trade, 'quantity');
-        let cost = undefined;
-        if (amount !== undefined) {
-            if (price !== undefined) {
-                cost = amount * price;
-            }
-        }
-        let fee = undefined;
-        const feeCost = this.safeFloat (trade, 'fee');
-        if (feeCost !== undefined) {
-            const feeCurrencyId = this.safeString (trade, 'feeCurrency');
-            const feeCurrencyCode = this.safeCurrencyCode (feeCurrencyId);
-            fee = {
-                'cost': feeCost,
-                'currency': feeCurrencyCode,
-            };
-        }
-        return {
-            'id': id,
-            'info': trade,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': symbol,
-            'order': orderId,
-            'type': undefined,
-            'side': side,
-            'takerOrMaker': undefined,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-            'fee': fee,
-        };
-    }
-
-    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'instrument': market['id'],
-        };
-        if (limit !== undefined) {
-            request['limit'] = limit;
-        } else {
-            request['limit'] = 10000;
-        }
-        const response = await this.publicGetGetlasttrades (this.extend (request, params));
-        //
-        //     {
-        //         "usOut":1559643108984527,
-        //         "usIn":1559643108984470,
-        //         "usDiff":57,
-        //         "testnet":false,
-        //         "success":true,
-        //         "result": [
-        //             {
-        //                 "tradeId":23197559,
-        //                 "instrument":"BTC-28JUN19",
-        //                 "timeStamp":1559643011379,
-        //                 "tradeSeq":1997200,
-        //                 "quantity":2,
-        //                 "amount":20.0,
-        //                 "price":8010.0,
-        //                 "direction":"sell",
-        //                 "tickDirection":2,
-        //                 "indexPrice":7969.01
-        //             }
-        //         ],
-        //         "message":""
-        //     }
-        //
-        const result = this.safeValue (response, 'result', []);
-        return this.parseTrades (result, market, since, limit);
-    }
-
-    async fetchOrderBook (symbol, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'instrument': market['id'],
-        };
-        const response = await this.publicGetGetorderbook (this.extend (request, params));
-        const timestamp = this.safeInteger (response, 'usOut') / 1000;
-        const orderbook = this.parseOrderBook (response['result'], timestamp, 'bids', 'asks', 'price', 'quantity');
-        return this.extend (orderbook, {
-            'nonce': this.safeInteger (response, 'tstamp'),
-        });
-    }
-
-    parseOrderStatus (status) {
-        const statuses = {
-            'open': 'open',
-            'cancelled': 'canceled',
-            'filled': 'closed',
-        };
-        return this.safeString (statuses, status, status);
-    }
-
-    parseOrder (order, market = undefined) {
-        //
-        //     {
-        //         "orderId": 5258039,          // ID of the order
-        //         "type": "limit",             // not documented, but present in the actual response
-        //         "instrument": "BTC-26MAY17", // instrument name (market id)
-        //         "direction": "sell",         // order direction, "buy" or "sell"
-        //         "price": 1860,               // float, USD for futures, BTC for options
-        //         "label": "",                 // label set by the owner, up to 32 chars
-        //         "quantity": 10,              // quantity, in contracts ($10 per contract for futures, ฿1 — for options)
-        //         "filledQuantity": 3,         // filled quantity, in contracts ($10 per contract for futures, ฿1 — for options)
-        //         "avgPrice": 1860,            // average fill price of the order
-        //         "commission": -0.000001613,  // in BTC units
-        //         "created": 1494491899308,    // creation timestamp
-        //         "state": "open",             // open, cancelled, etc
-        //         "postOnly": false            // true for post-only orders only
-        // open orders --------------------------------------------------------
-        //         "lastUpdate": 1494491988754, // timestamp of the last order state change (before this cancelorder of course)
-        // closed orders ------------------------------------------------------
-        //         "tstamp": 1494492913288,     // timestamp of the last order state change, documented, but may be missing in the actual response
-        //         "modified": 1494492913289,   // timestamp of the last db write operation, e.g. trade that doesn't change order status, documented, but may missing in the actual response
-        //         "adv": false                 // advanced type (false, or "usd" or "implv")
-        //         "trades": [],                // not documented, injected from the outside of the parseOrder method into the order
-        //     }
-        //
-        const timestamp = this.safeInteger (order, 'created');
-        const lastUpdate = this.safeInteger (order, 'lastUpdate');
-        let lastTradeTimestamp = this.safeInteger2 (order, 'tstamp', 'modified');
-        const id = this.safeString (order, 'orderId');
-        const price = this.safeFloat (order, 'price');
-        const average = this.safeFloat (order, 'avgPrice');
-        const amount = this.safeFloat (order, 'quantity');
-        const filled = this.safeFloat (order, 'filledQuantity');
-        if (lastTradeTimestamp === undefined) {
-            if (filled !== undefined) {
-                if (filled > 0) {
-                    lastTradeTimestamp = lastUpdate;
-                }
-            }
-        }
-        let remaining = undefined;
-        let cost = undefined;
-        if (filled !== undefined) {
-            if (amount !== undefined) {
-                remaining = amount - filled;
-            }
-            if (price !== undefined) {
-                cost = price * filled;
-            }
-        }
-        const status = this.parseOrderStatus (this.safeString (order, 'state'));
-        const side = this.safeStringLower (order, 'direction');
-        let feeCost = this.safeFloat (order, 'commission');
-        if (feeCost !== undefined) {
-            feeCost = Math.abs (feeCost);
-        }
-        const fee = {
-            'cost': feeCost,
-            'currency': 'BTC',
-        };
-        const type = this.safeString (order, 'type');
-        const marketId = this.safeString (order, 'instrument');
-        let symbol = undefined;
-        if (marketId in this.markets_by_id) {
-            market = this.markets_by_id[marketId];
-            symbol = market['symbol'];
-        }
-        return {
-            'info': order,
-            'id': id,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'lastTradeTimestamp': lastTradeTimestamp,
-            'symbol': symbol,
-            'type': type,
-            'side': side,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-            'average': average,
-            'filled': filled,
-            'remaining': remaining,
-            'status': status,
-            'fee': fee,
-            'trades': undefined, // todo: parse trades
-        };
-    }
-
-    async fetchOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'orderId': id,
-        };
-        const response = await this.privateGetOrderstate (this.extend (request, params));
-        const result = this.safeValue (response, 'result');
-        if (result === undefined) {
-            throw new OrderNotFound (this.id + ' fetchOrder() ' + this.json (response));
-        }
-        return this.parseOrder (result);
-    }
-
-    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'instrument': this.marketId (symbol),
-            'quantity': amount,
-            'type': type,
-            // 'post_only': 'false' or 'true', https://github.com/ccxt/ccxt/issues/5159
-        };
-        if (price !== undefined) {
-            request['price'] = price;
-        }
-        const method = 'privatePost' + this.capitalize (side);
-        const response = await this[method] (this.extend (request, params));
-        const order = this.safeValue (response['result'], 'order');
-        if (order === undefined) {
-            return response;
-        }
-        return this.parseOrder (order);
-    }
-
-    async editOrder (id, symbol, type, side, amount = undefined, price = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'orderId': id,
-        };
-        if (amount !== undefined) {
-            request['quantity'] = amount;
-        }
-        if (price !== undefined) {
-            request['price'] = price;
-        }
-        const response = await this.privatePostEdit (this.extend (request, params));
-        return this.parseOrder (response['result']['order']);
-    }
-
-    async cancelOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {
-            'orderId': id,
-        };
-        const response = await this.privatePostCancel (this.extend (request, params));
-        return this.parseOrder (response['result']['order']);
-    }
-
-    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        if (symbol === undefined) {
-            throw new ArgumentsRequired (this.id + ' fetchClosedOrders() requires a `symbol` argument');
-        }
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'instrument': market['id'],
-        };
-        const response = await this.privateGetGetopenorders (this.extend (request, params));
-        return this.parseOrders (response['result'], market, since, limit);
-    }
-
-    async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        if (symbol === undefined) {
-            throw new ArgumentsRequired (this.id + ' fetchClosedOrders() requires a `symbol` argument');
-        }
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'instrument': market['id'],
-        };
-        const response = await this.privateGetOrderhistory (this.extend (request, params));
-        return this.parseOrders (response['result'], market, since, limit);
-    }
-
-    async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'instrument': market['id'],
-        };
-        if (limit !== undefined) {
-            request['count'] = limit; // default = 20
-        }
-        const response = await this.privateGetTradehistory (this.extend (request, params));
-        //
-        //     {
-        //         "usOut":1559611553394836,
-        //         "usIn":1559611553394000,
-        //         "usDiff":836,
-        //         "testnet":false,
-        //         "success":true,
-        //         "result": [
-        //             {
-        //                 "quantity":54,
-        //                 "amount":540.0,
-        //                 "tradeId":23087297,
-        //                 "instrument":"BTC-PERPETUAL",
-        //                 "timeStamp":1559604178803,
-        //                 "tradeSeq":8265011,
-        //                 "price":8213.0,
-        //                 "side":"sell",
-        //                 "orderId":12373631800,
-        //                 "matchingId":0,
-        //                 "liquidity":"T",
-        //                 "fee":0.000049312,
-        //                 "feeCurrency":"BTC",
-        //                 "tickDirection":3,
-        //                 "indexPrice":8251.94,
-        //                 "selfTrade":false
-        //             }
-        //         ],
-        //         "message":"",
-        //         "has_more":true
-        //     }
-        //
-        const trades = this.safeValue (response, 'result', []);
-        return this.parseTrades (trades, market, since, limit);
-    }
-
-    nonce () {
-        return this.milliseconds ();
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        const query = '/' + 'api/' + this.version + '/' + api + '/' + path;
-        let url = this.urls['api'] + query;
-        if (api === 'public') {
-            if (Object.keys (params).length) {
-                url += '?' + this.urlencode (params);
-            }
-        } else {
-            this.checkRequiredCredentials ();
-            const nonce = this.nonce ().toString ();
-            let auth = '_=' + nonce + '&_ackey=' + this.apiKey + '&_acsec=' + this.secret + '&_action=' + query;
-            if (Object.keys (params).length) {
-                params = this.keysort (params);
-                auth += '&' + this.urlencode (params);
-            }
-            const hash = this.hash (this.encode (auth), 'sha256', 'base64');
-            const signature = this.apiKey + '.' + nonce + '.' + this.decode (hash);
-            headers = {
-                'x-deribit-sig': signature,
-            };
-            if (method !== 'GET') {
-                headers['Content-Type'] = 'application/x-www-form-urlencoded';
-                body = this.urlencode (params);
-            } else if (Object.keys (params).length) {
-                url += '?' + this.urlencode (params);
-            }
-        }
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-
-    handleErrors (httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody) {
-        if (!response) {
-            return; // fallback to default error handler
-        }
-        //
-        //     {"usOut":1535877098645376,"usIn":1535877098643364,"usDiff":2012,"testnet":false,"success":false,"message":"order_not_found","error":10004}
-        //
-        const error = this.safeString (response, 'error');
-        if ((error !== undefined) && (error !== '0')) {
-            const feedback = this.id + ' ' + body;
-            this.throwExactlyMatchedException (this.exceptions, error, feedback);
-            throw new ExchangeError (feedback); // unknown message
-        }
-    }
-};
diff --git a/WebServer/node_modules/ccxt/js/hitbtc.js b/WebServer/node_modules/ccxt/js/hitbtc.js
deleted file mode 100644
index c7d2932c4..000000000
--- a/WebServer/node_modules/ccxt/js/hitbtc.js
+++ /dev/null
@@ -1,1036 +0,0 @@
-'use strict';
-
-// ---------------------------------------------------------------------------
-
-const Exchange = require ('./base/Exchange');
-const { BadSymbol, ExchangeError, InsufficientFunds, OrderNotFound, InvalidOrder } = require ('./base/errors');
-
-// ---------------------------------------------------------------------------
-
-module.exports = class hitbtc extends Exchange {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'hitbtc',
-            'name': 'HitBTC',
-            'countries': [ 'HK' ],
-            'rateLimit': 1500,
-            'version': '1',
-            'has': {
-                'CORS': false,
-                'fetchTrades': true,
-                'fetchTickers': true,
-                'fetchOrder': true,
-                'fetchOpenOrders': true,
-                'fetchClosedOrders': true,
-                'fetchOrderTrades': true,
-                'withdraw': true,
-            },
-            'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766555-8eaec20e-5edc-11e7-9c5b-6dc69fc42f5e.jpg',
-                'api': 'https://api.hitbtc.com',
-                'www': 'https://hitbtc.com',
-                'referral': 'https://hitbtc.com/?ref_id=5a5d39a65d466',
-                'doc': 'https://github.com/hitbtc-com/hitbtc-api/blob/master/APIv1.md',
-                'fees': [
-                    'https://hitbtc.com/fees-and-limits',
-                    'https://support.hitbtc.com/hc/en-us/articles/115005148605-Fees-and-limits',
-                ],
-            },
-            'api': {
-                'public': {
-                    'get': [
-                        '{symbol}/orderbook',
-                        '{symbol}/ticker',
-                        '{symbol}/trades',
-                        '{symbol}/trades/recent',
-                        'symbols',
-                        'ticker',
-                        'time',
-                    ],
-                },
-                'trading': {
-                    'get': [
-                        'balance',
-                        'orders/active',
-                        'orders/recent',
-                        'order',
-                        'trades/by/order',
-                        'trades',
-                    ],
-                    'post': [
-                        'new_order',
-                        'cancel_order',
-                        'cancel_orders',
-                    ],
-                },
-                'payment': {
-                    'get': [
-                        'balance',
-                        'address/{currency}',
-                        'transactions',
-                        'transactions/{transaction}',
-                    ],
-                    'post': [
-                        'transfer_to_trading',
-                        'transfer_to_main',
-                        'address/{currency}',
-                        'payout',
-                    ],
-                },
-            },
-            // hardcoded fees are deprecated and should only be used when there's no other way to get fee info
-            'fees': {
-                'trading': {
-                    'tierBased': false,
-                    'percentage': true,
-                    'maker': 0.07 / 100,
-                    'taker': 0.07 / 100,
-                },
-                'funding': {
-                    'tierBased': false,
-                    'percentage': false,
-                    'withdraw': {
-                        'BTC': 0.001,
-                        'BCC': 0.0018,
-                        'ETH': 0.00215,
-                        'BCH': 0.0018,
-                        'USDT': 100,
-                        'DASH': 0.03,
-                        'BTG': 0.0005,
-                        'LTC': 0.003,
-                        'ZEC': 0.0001,
-                        'XMR': 0.09,
-                        '1ST': 0.84,
-                        'ADX': 5.7,
-                        'AE': 6.7,
-                        'AEON': 0.01006,
-                        'AIR': 565,
-                        'AMP': 9,
-                        'ANT': 6.7,
-                        'ARDR': 1,
-                        'ARN': 18.5,
-                        'ART': 26,
-                        'ATB': 0.0004,
-                        'ATL': 27,
-                        'ATM': 504,
-                        'ATS': 860,
-                        'AVT': 1.9,
-                        'BAS': 113,
-                        'BCN': 0.1,
-                        'DAO.Casino': 124, // id = 'BET'
-                        'BKB': 46,
-                        'BMC': 32,
-                        'BMT': 100,
-                        'BNT': 2.57,
-                        'BQX': 4.7,
-                        'BTM': 40,
-                        'BTX': 0.04,
-                        'BUS': 0.004,
-                        'CCT': 115,
-                        'CDT': 100,
-                        'CDX': 30,
-                        'CFI': 61,
-                        'CLD': 0.88,
-                        'CND': 574,
-                        'CNX': 0.04,
-                        'COSS': 65,
-                        'CSNO': 16,
-                        'CTR': 15,
-                        'CTX': 146,
-                        'CVC': 8.46,
-                        'DBIX': 0.0168,
-                        'DCN': 120000,
-                        'DCT': 0.02,
-                        'DDF': 342,
-                        'DENT': 6240,
-                        'DGB': 0.4,
-                        'DGD': 0.01,
-                        'DICE': 0.32,
-                        'DLT': 0.26,
-                        'DNT': 0.21,
-                        'DOGE': 2,
-                        'DOV': 34,
-                        'DRPU': 24,
-                        'DRT': 240,
-                        'DSH': 0.017,
-                        'EBET': 84,
-                        'EBTC': 20,
-                        'EBTCOLD': 6.6,
-                        'ECAT': 14,
-                        'EDG': 2,
-                        'EDO': 2.9,
-                        'ELE': 0.00172,
-                        'ELM': 0.004,
-                        'EMC': 0.03,
-                        'EMGO': 14,
-                        'ENJ': 163,
-                        'EOS': 1.5,
-                        'ERO': 34,
-                        'ETBS': 15,
-                        'ETC': 0.002,
-                        'ETP': 0.004,
-                        'EVX': 5.4,
-                        'EXN': 456,
-                        'FRD': 65,
-                        'FUEL': 123.00105,
-                        'FUN': 202.9598309,
-                        'FYN': 1.849,
-                        'FYP': 66.13,
-                        'GNO': 0.0034,
-                        'GUP': 4,
-                        'GVT': 1.2,
-                        'HAC': 144,
-                        'HDG': 7,
-                        'HGT': 1082,
-                        'HPC': 0.4,
-                        'HVN': 120,
-                        'ICN': 0.55,
-                        'ICO': 34,
-                        'ICOS': 0.35,
-                        'IND': 76,
-                        'INDI': 5913,
-                        'ITS': 15.0012,
-                        'IXT': 11,
-                        'KBR': 143,
-                        'KICK': 112,
-                        'LA': 41,
-                        'LAT': 1.44,
-                        'LIFE': 13000,
-                        'LRC': 27,
-                        'LSK': 0.3,
-                        'LUN': 0.34,
-                        'MAID': 5,
-                        'MANA': 143,
-                        'MCAP': 5.44,
-                        'MIPS': 43,
-                        'MNE': 1.33,
-                        'MSP': 121,
-                        'MTH': 92,
-                        'MYB': 3.9,
-                        'NDC': 165,
-                        'NEBL': 0.04,
-                        'NET': 3.96,
-                        'NTO': 998,
-                        'NXC': 13.39,
-                        'NXT': 3,
-                        'OAX': 15,
-                        'ODN': 0.004,
-                        'OMG': 2,
-                        'OPT': 335,
-                        'ORME': 2.8,
-                        'OTN': 0.57,
-                        'PAY': 3.1,
-                        'PIX': 96,
-                        'PLBT': 0.33,
-                        'PLR': 114,
-                        'PLU': 0.87,
-                        'POE': 784,
-                        'POLL': 3.5,
-                        'PPT': 2,
-                        'PRE': 32,
-                        'PRG': 39,
-                        'PRO': 41,
-                        'PRS': 60,
-                        'PTOY': 0.5,
-                        'QAU': 63,
-                        'QCN': 0.03,
-                        'QTUM': 0.04,
-                        'QVT': 64,
-                        'REP': 0.02,
-                        'RKC': 15,
-                        'RVT': 14,
-                        'SAN': 2.24,
-                        'SBD': 0.03,
-                        'SCL': 2.6,
-                        'SISA': 1640,
-                        'SKIN': 407,
-                        'SMART': 0.4,
-                        'SMS': 0.0375,
-                        'SNC': 36,
-                        'SNGLS': 4,
-                        'SNM': 48,
-                        'SNT': 233,
-                        'STEEM': 0.01,
-                        'STRAT': 0.01,
-                        'STU': 14,
-                        'STX': 11,
-                        'SUB': 17,
-                        'SUR': 3,
-                        'SWT': 0.51,
-                        'TAAS': 0.91,
-                        'TBT': 2.37,
-                        'TFL': 15,
-                        'TIME': 0.03,
-                        'TIX': 7.1,
-                        'TKN': 1,
-                        'TKR': 84,
-                        'TNT': 90,
-                        'TRST': 1.6,
-                        'TRX': 1395,
-                        'UET': 480,
-                        'UGT': 15,
-                        'VEN': 14,
-                        'VERI': 0.037,
-                        'VIB': 50,
-                        'VIBE': 145,
-                        'VOISE': 618,
-                        'WEALTH': 0.0168,
-                        'WINGS': 2.4,
-                        'WTC': 0.75,
-                        'XAUR': 3.23,
-                        'XDN': 0.01,
-                        'XEM': 15,
-                        'XUC': 0.9,
-                        'YOYOW': 140,
-                        'ZAP': 24,
-                        'ZRX': 23,
-                        'ZSC': 191,
-                    },
-                    'deposit': {
-                        'BTC': 0,
-                        'ETH': 0,
-                        'BCH': 0,
-                        'USDT': 0,
-                        'BTG': 0,
-                        'LTC': 0,
-                        'ZEC': 0,
-                        'XMR': 0,
-                        '1ST': 0,
-                        'ADX': 0,
-                        'AE': 0,
-                        'AEON': 0,
-                        'AIR': 0,
-                        'AMP': 0,
-                        'ANT': 0,
-                        'ARDR': 0,
-                        'ARN': 0,
-                        'ART': 0,
-                        'ATB': 0,
-                        'ATL': 0,
-                        'ATM': 0,
-                        'ATS': 0,
-                        'AVT': 0,
-                        'BAS': 0,
-                        'BCN': 0,
-                        'DAO.Casino': 0, // id = 'BET'
-                        'BKB': 0,
-                        'BMC': 0,
-                        'BMT': 0,
-                        'BNT': 0,
-                        'BQX': 0,
-                        'BTM': 0,
-                        'BTX': 0,
-                        'BUS': 0,
-                        'CCT': 0,
-                        'CDT': 0,
-                        'CDX': 0,
-                        'CFI': 0,
-                        'CLD': 0,
-                        'CND': 0,
-                        'CNX': 0,
-                        'COSS': 0,
-                        'CSNO': 0,
-                        'CTR': 0,
-                        'CTX': 0,
-                        'CVC': 0,
-                        'DBIX': 0,
-                        'DCN': 0,
-                        'DCT': 0,
-                        'DDF': 0,
-                        'DENT': 0,
-                        'DGB': 0,
-                        'DGD': 0,
-                        'DICE': 0,
-                        'DLT': 0,
-                        'DNT': 0,
-                        'DOGE': 0,
-                        'DOV': 0,
-                        'DRPU': 0,
-                        'DRT': 0,
-                        'DSH': 0,
-                        'EBET': 0,
-                        'EBTC': 0,
-                        'EBTCOLD': 0,
-                        'ECAT': 0,
-                        'EDG': 0,
-                        'EDO': 0,
-                        'ELE': 0,
-                        'ELM': 0,
-                        'EMC': 0,
-                        'EMGO': 0,
-                        'ENJ': 0,
-                        'EOS': 0,
-                        'ERO': 0,
-                        'ETBS': 0,
-                        'ETC': 0,
-                        'ETP': 0,
-                        'EVX': 0,
-                        'EXN': 0,
-                        'FRD': 0,
-                        'FUEL': 0,
-                        'FUN': 0,
-                        'FYN': 0,
-                        'FYP': 0,
-                        'GNO': 0,
-                        'GUP': 0,
-                        'GVT': 0,
-                        'HAC': 0,
-                        'HDG': 0,
-                        'HGT': 0,
-                        'HPC': 0,
-                        'HVN': 0,
-                        'ICN': 0,
-                        'ICO': 0,
-                        'ICOS': 0,
-                        'IND': 0,
-                        'INDI': 0,
-                        'ITS': 0,
-                        'IXT': 0,
-                        'KBR': 0,
-                        'KICK': 0,
-                        'LA': 0,
-                        'LAT': 0,
-                        'LIFE': 0,
-                        'LRC': 0,
-                        'LSK': 0,
-                        'LUN': 0,
-                        'MAID': 0,
-                        'MANA': 0,
-                        'MCAP': 0,
-                        'MIPS': 0,
-                        'MNE': 0,
-                        'MSP': 0,
-                        'MTH': 0,
-                        'MYB': 0,
-                        'NDC': 0,
-                        'NEBL': 0,
-                        'NET': 0,
-                        'NTO': 0,
-                        'NXC': 0,
-                        'NXT': 0,
-                        'OAX': 0,
-                        'ODN': 0,
-                        'OMG': 0,
-                        'OPT': 0,
-                        'ORME': 0,
-                        'OTN': 0,
-                        'PAY': 0,
-                        'PIX': 0,
-                        'PLBT': 0,
-                        'PLR': 0,
-                        'PLU': 0,
-                        'POE': 0,
-                        'POLL': 0,
-                        'PPT': 0,
-                        'PRE': 0,
-                        'PRG': 0,
-                        'PRO': 0,
-                        'PRS': 0,
-                        'PTOY': 0,
-                        'QAU': 0,
-                        'QCN': 0,
-                        'QTUM': 0,
-                        'QVT': 0,
-                        'REP': 0,
-                        'RKC': 0,
-                        'RVT': 0,
-                        'SAN': 0,
-                        'SBD': 0,
-                        'SCL': 0,
-                        'SISA': 0,
-                        'SKIN': 0,
-                        'SMART': 0,
-                        'SMS': 0,
-                        'SNC': 0,
-                        'SNGLS': 0,
-                        'SNM': 0,
-                        'SNT': 0,
-                        'STEEM': 0,
-                        'STRAT': 0,
-                        'STU': 0,
-                        'STX': 0,
-                        'SUB': 0,
-                        'SUR': 0,
-                        'SWT': 0,
-                        'TAAS': 0,
-                        'TBT': 0,
-                        'TFL': 0,
-                        'TIME': 0,
-                        'TIX': 0,
-                        'TKN': 0,
-                        'TKR': 0,
-                        'TNT': 0,
-                        'TRST': 0,
-                        'TRX': 0,
-                        'UET': 0,
-                        'UGT': 0,
-                        'VEN': 0,
-                        'VERI': 0,
-                        'VIB': 0,
-                        'VIBE': 0,
-                        'VOISE': 0,
-                        'WEALTH': 0,
-                        'WINGS': 0,
-                        'WTC': 0,
-                        'XAUR': 0,
-                        'XDN': 0,
-                        'XEM': 0,
-                        'XUC': 0,
-                        'YOYOW': 0,
-                        'ZAP': 0,
-                        'ZRX': 0,
-                        'ZSC': 0,
-                    },
-                },
-            },
-            'commonCurrencies': {
-                'BET': 'DAO.Casino',
-                'CAT': 'BitClave',
-                'CPT': 'Cryptaur', // conflict with CPT = Contents Protocol https://github.com/ccxt/ccxt/issues/4920 and https://github.com/ccxt/ccxt/issues/6081
-                'DRK': 'DASH',
-                'EMGO': 'MGO',
-                'GET': 'Themis',
-                'HSR': 'HC',
-                'LNC': 'LinkerCoin',
-                'PLA': 'PlayChip',
-                'UNC': 'Unigame',
-                'USD': 'USDT',
-                'XBT': 'BTC',
-            },
-            'exceptions': {
-                'exact': {
-                    '2001': BadSymbol, // {"error":{"code":2001,"message":"Symbol not found","description":"Try get /api/2/public/symbol, to get list of all available symbols."}}
-                },
-                'broad': {
-                },
-            },
-            'options': {
-                'defaultTimeInForce': 'FOK',
-            },
-        });
-    }
-
-    async fetchMarkets (params = {}) {
-        const response = await this.publicGetSymbols (params);
-        const markets = this.safeValue (response, 'symbols');
-        const result = [];
-        for (let i = 0; i < markets.length; i++) {
-            const market = markets[i];
-            const id = this.safeString (market, 'symbol');
-            const baseId = this.safeString (market, 'commodity');
-            const quoteId = this.safeString (market, 'currency');
-            const lot = this.safeFloat (market, 'lot');
-            const step = this.safeFloat (market, 'step');
-            const base = this.safeCurrencyCode (baseId);
-            const quote = this.safeCurrencyCode (quoteId);
-            const symbol = base + '/' + quote;
-            result.push ({
-                'info': market,
-                'id': id,
-                'symbol': symbol,
-                'base': base,
-                'quote': quote,
-                'baseId': baseId,
-                'quoteId': quoteId,
-                'lot': lot,
-                'step': step,
-                'active': true,
-                'maker': this.safeFloat (market, 'provideLiquidityRate'),
-                'taker': this.safeFloat (market, 'takeLiquidityRate'),
-                'precision': {
-                    'amount': this.precisionFromString (market['lot']),
-                    'price': this.precisionFromString (market['step']),
-                },
-                'limits': {
-                    'amount': {
-                        'min': lot,
-                        'max': undefined,
-                    },
-                    'price': {
-                        'min': step,
-                        'max': undefined,
-                    },
-                    'cost': {
-                        'min': undefined,
-                        'max': undefined,
-                    },
-                },
-            });
-        }
-        return result;
-    }
-
-    async fetchBalance (params = {}) {
-        await this.loadMarkets ();
-        let method = this.safeString (params, 'type', 'trading');
-        method += 'GetBalance';
-        const query = this.omit (params, 'type');
-        const response = await this[method] (query);
-        const balances = this.safeValue (response, 'balance', []);
-        const result = { 'info': response };
-        for (let i = 0; i < balances.length; i++) {
-            const balance = balances[i];
-            const currencyId = this.safeString (balance, 'currency_code');
-            const code = this.safeCurrencyCode (currencyId);
-            const account = this.account ();
-            account['free'] = this.safeFloat2 (balance, 'cash', 'balance');
-            account['used'] = this.safeFloat (balance, 'reserved');
-            result[code] = account;
-        }
-        return this.parseBalance (result);
-    }
-
-    async fetchOrderBook (symbol, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const orderbook = await this.publicGetSymbolOrderbook (this.extend ({
-            'symbol': this.marketId (symbol),
-        }, params));
-        return this.parseOrderBook (orderbook);
-    }
-
-    parseTicker (ticker, market = undefined) {
-        const timestamp = this.safeInteger (ticker, 'timestamp');
-        let symbol = undefined;
-        if (market) {
-            symbol = market['symbol'];
-        }
-        const last = this.safeFloat (ticker, 'last');
-        return {
-            'symbol': symbol,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'high': this.safeFloat (ticker, 'high'),
-            'low': this.safeFloat (ticker, 'low'),
-            'bid': this.safeFloat (ticker, 'bid'),
-            'bidVolume': undefined,
-            'ask': this.safeFloat (ticker, 'ask'),
-            'askVolume': undefined,
-            'vwap': undefined,
-            'open': this.safeFloat (ticker, 'open'),
-            'close': last,
-            'last': last,
-            'previousClose': undefined,
-            'change': undefined,
-            'percentage': undefined,
-            'average': undefined,
-            'baseVolume': this.safeFloat (ticker, 'volume'),
-            'quoteVolume': this.safeFloat (ticker, 'volume_quote'),
-            'info': ticker,
-        };
-    }
-
-    async fetchTickers (symbols = undefined, params = {}) {
-        await this.loadMarkets ();
-        const tickers = await this.publicGetTicker (params);
-        const ids = Object.keys (tickers);
-        const result = {};
-        for (let i = 0; i < ids.length; i++) {
-            const id = ids[i];
-            const market = this.markets_by_id[id];
-            const symbol = market['symbol'];
-            const ticker = tickers[id];
-            result[symbol] = this.parseTicker (ticker, market);
-        }
-        return result;
-    }
-
-    async fetchTicker (symbol, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'symbol': market['id'],
-        };
-        const response = await this.publicGetSymbolTicker (this.extend (request, params));
-        if ('message' in response) {
-            throw new ExchangeError (this.id + ' ' + response['message']);
-        }
-        return this.parseTicker (response, market);
-    }
-
-    parseTrade (trade, market = undefined) {
-        if (Array.isArray (trade)) {
-            return this.parsePublicTrade (trade, market);
-        }
-        return this.parseOrderTrade (trade, market);
-    }
-
-    parsePublicTrade (trade, market = undefined) {
-        let symbol = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        let side = undefined;
-        const tradeLength = trade.length;
-        if (tradeLength > 4) {
-            side = trade[4];
-        }
-        const price = parseFloat (trade[1]);
-        const amount = parseFloat (trade[2]);
-        const cost = price * amount;
-        return {
-            'info': trade,
-            'id': trade[0].toString (),
-            'timestamp': trade[3],
-            'datetime': this.iso8601 (trade[3]),
-            'symbol': symbol,
-            'type': undefined,
-            'side': side,
-            'order': undefined,
-            'takerOrMaker': undefined,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-            'fee': undefined,
-        };
-    }
-
-    parseOrderTrade (trade, market = undefined) {
-        let symbol = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        let amount = this.safeFloat (trade, 'execQuantity');
-        if (market) {
-            amount *= market['lot'];
-        }
-        const price = this.safeFloat (trade, 'execPrice');
-        const cost = price * amount;
-        const fee = {
-            'cost': this.safeFloat (trade, 'fee'),
-            'currency': undefined,
-            'rate': undefined,
-        };
-        const timestamp = this.safeInteger (trade, 'timestamp');
-        const id = this.safeString (trade, 'tradeId');
-        // we use clientOrderId as the order id with HitBTC intentionally
-        // because most of their endpoints will require clientOrderId
-        // explained here: https://github.com/ccxt/ccxt/issues/5674
-        const orderId = this.safeString (trade, 'clientOrderId');
-        const side = this.safeString (trade, 'side');
-        return {
-            'info': trade,
-            'id': id,
-            'order': orderId,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': symbol,
-            'type': undefined,
-            'side': side,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-            'fee': fee,
-        };
-    }
-
-    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const request = {
-            'symbol': market['id'],
-            // 'from': 0,
-            // 'till': 100,
-            // 'by': 'ts', // or by trade_id
-            // 'sort': 'desc', // or asc
-            // 'start_index': 0,
-            // 'max_results': 1000,
-            // 'format_item': 'object',
-            // 'format_price': 'number',
-            // 'format_amount': 'number',
-            // 'format_tid': 'string',
-            // 'format_timestamp': 'millisecond',
-            // 'format_wrap': false,
-            // 'side': 'true',
-        };
-        if (since !== undefined) {
-            request['by'] = 'ts';
-            request['from'] = since;
-        }
-        if (limit !== undefined) {
-            request['max_results'] = limit;
-        }
-        const response = await this.publicGetSymbolTrades (this.extend (request, params));
-        return this.parseTrades (response['trades'], market, since, limit);
-    }
-
-    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        // check if amount can be evenly divided into lots
-        // they want integer quantity in lot units
-        const quantity = parseFloat (amount) / market['lot'];
-        const wholeLots = Math.round (quantity);
-        const difference = quantity - wholeLots;
-        if (Math.abs (difference) > market['step']) {
-            throw new ExchangeError (this.id + ' order amount should be evenly divisible by lot unit size of ' + market['lot'].toString ());
-        }
-        const clientOrderId = this.milliseconds ();
-        const request = {
-            'clientOrderId': clientOrderId.toString (),
-            'symbol': market['id'],
-            'side': side,
-            'quantity': wholeLots.toString (), // quantity in integer lot units
-            'type': type,
-        };
-        if (type === 'limit') {
-            request['price'] = this.priceToPrecision (symbol, price);
-        } else {
-            request['timeInForce'] = this.options['defaultTimeInForce'];
-        }
-        const response = await this.tradingPostNewOrder (this.extend (request, params));
-        const order = this.parseOrder (response['ExecutionReport'], market);
-        if (order['status'] === 'rejected') {
-            throw new InvalidOrder (this.id + ' order was rejected by the exchange ' + this.json (order));
-        }
-        return order;
-    }
-
-    async cancelOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        // we use clientOrderId as the order id with HitBTC intentionally
-        // because most of their endpoints will require clientOrderId
-        // explained here: https://github.com/ccxt/ccxt/issues/5674
-        const request = {
-            'clientOrderId': id,
-        };
-        return await this.tradingPostCancelOrder (this.extend (request, params));
-    }
-
-    parseOrderStatus (status) {
-        const statuses = {
-            'new': 'open',
-            'partiallyFilled': 'open',
-            'filled': 'closed',
-            'canceled': 'canceled',
-            'rejected': 'rejected',
-            'expired': 'expired',
-        };
-        return this.safeString (statuses, status);
-    }
-
-    parseOrder (order, market = undefined) {
-        let timestamp = this.safeInteger (order, 'lastTimestamp');
-        if (timestamp === undefined) {
-            timestamp = this.safeInteger (order, 'timestamp');
-        }
-        let symbol = undefined;
-        if (market === undefined) {
-            market = this.markets_by_id[order['symbol']];
-        }
-        const status = this.parseOrderStatus (this.safeString (order, 'orderStatus'));
-        let price = this.safeFloat (order, 'orderPrice');
-        price = this.safeFloat (order, 'price', price);
-        price = this.safeFloat (order, 'avgPrice', price);
-        let amount = this.safeFloat (order, 'orderQuantity');
-        amount = this.safeFloat (order, 'quantity', amount);
-        let remaining = this.safeFloat (order, 'quantityLeaves');
-        remaining = this.safeFloat (order, 'leavesQuantity', remaining);
-        let filled = undefined;
-        let cost = undefined;
-        const amountDefined = (amount !== undefined);
-        const remainingDefined = (remaining !== undefined);
-        if (market !== undefined) {
-            symbol = market['symbol'];
-            if (amountDefined) {
-                amount *= market['lot'];
-            }
-            if (remainingDefined) {
-                remaining *= market['lot'];
-            }
-        } else {
-            const marketId = this.safeString (order, 'symbol');
-            if (marketId in this.markets_by_id) {
-                market = this.markets_by_id[marketId];
-            }
-        }
-        if (amountDefined) {
-            if (remainingDefined) {
-                filled = amount - remaining;
-                if (price !== undefined) {
-                    cost = price * filled;
-                }
-            }
-        }
-        const feeCost = this.safeFloat (order, 'fee');
-        let feeCurrency = undefined;
-        if (market !== undefined) {
-            symbol = market['symbol'];
-            feeCurrency = market['quote'];
-        }
-        const fee = {
-            'cost': feeCost,
-            'currency': feeCurrency,
-            'rate': undefined,
-        };
-        // we use clientOrderId as the order id with HitBTC intentionally
-        // because most of their endpoints will require clientOrderId
-        // explained here: https://github.com/ccxt/ccxt/issues/5674
-        const id = this.safeString (order, 'clientOrderId');
-        const type = this.safeString (order, 'type');
-        const side = this.safeString (order, 'side');
-        return {
-            'id': id,
-            'info': order,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'lastTradeTimestamp': undefined,
-            'status': status,
-            'symbol': symbol,
-            'type': type,
-            'side': side,
-            'price': price,
-            'cost': cost,
-            'amount': amount,
-            'filled': filled,
-            'remaining': remaining,
-            'fee': fee,
-        };
-    }
-
-    async fetchOrder (id, symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        // we use clientOrderId as the order id with HitBTC intentionally
-        // because most of their endpoints will require clientOrderId
-        // explained here: https://github.com/ccxt/ccxt/issues/5674
-        const request = {
-            'clientOrderId': id,
-        };
-        const response = await this.tradingGetOrder (this.extend (request, params));
-        if (response['orders'][0]) {
-            return this.parseOrder (response['orders'][0]);
-        }
-        throw new OrderNotFound (this.id + ' fetchOrder() error: ' + this.response);
-    }
-
-    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const statuses = [ 'new', 'partiallyFiiled' ];
-        let market = undefined;
-        const request = {
-            'sort': 'desc',
-            'statuses': statuses.join (','),
-        };
-        if (symbol !== undefined) {
-            market = this.market (symbol);
-            request['symbols'] = market['id'];
-        }
-        const response = await this.tradingGetOrdersActive (this.extend (request, params));
-        return this.parseOrders (response['orders'], market, since, limit);
-    }
-
-    async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        let market = undefined;
-        const statuses = [ 'filled', 'canceled', 'rejected', 'expired' ];
-        const request = {
-            'sort': 'desc',
-            'statuses': statuses.join (','),
-            'max_results': 1000,
-        };
-        if (symbol !== undefined) {
-            market = this.market (symbol);
-            request['symbols'] = market['id'];
-        }
-        const response = await this.tradingGetOrdersRecent (this.extend (request, params));
-        return this.parseOrders (response['orders'], market, since, limit);
-    }
-
-    async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        let market = undefined;
-        if (symbol !== undefined) {
-            market = this.market (symbol);
-        }
-        // we use clientOrderId as the order id with HitBTC intentionally
-        // because most of their endpoints will require clientOrderId
-        // explained here: https://github.com/ccxt/ccxt/issues/5674
-        const request = {
-            'clientOrderId': id,
-        };
-        const response = await this.tradingGetTradesByOrder (this.extend (request, params));
-        return this.parseTrades (response['trades'], market, since, limit);
-    }
-
-    async withdraw (code, amount, address, tag = undefined, params = {}) {
-        this.checkAddress (address);
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        const request = {
-            'currency_code': currency['id'],
-            'amount': amount,
-            'address': address,
-        };
-        if (tag !== undefined) {
-            request['extra_id'] = tag;
-        }
-        const response = await this.paymentPostPayout (this.extend (request, params));
-        return {
-            'info': response,
-            'id': response['transaction'],
-        };
-    }
-
-    nonce () {
-        return this.milliseconds ();
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = '/' + 'api' + '/' + this.version + '/' + api + '/' + this.implodeParams (path, params);
-        let query = this.omit (params, this.extractParams (path));
-        if (api === 'public') {
-            if (Object.keys (query).length) {
-                url += '?' + this.urlencode (query);
-            }
-        } else {
-            this.checkRequiredCredentials ();
-            const nonce = this.nonce ();
-            const payload = { 'nonce': nonce, 'apikey': this.apiKey };
-            query = this.extend (payload, query);
-            if (method === 'GET') {
-                url += '?' + this.urlencode (query);
-            } else {
-                url += '?' + this.urlencode (payload);
-            }
-            let auth = url;
-            if (method === 'POST') {
-                if (Object.keys (query).length) {
-                    body = this.urlencode (query);
-                    auth += body;
-                }
-            }
-            headers = {
-                'Content-Type': 'application/x-www-form-urlencoded',
-                'X-Signature': this.hmac (this.encode (auth), this.encode (this.secret), 'sha512').toLowerCase (),
-            };
-        }
-        url = this.urls['api'] + url;
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-
-    async request (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        const response = await this.fetch2 (path, api, method, params, headers, body);
-        if ('code' in response) {
-            if ('ExecutionReport' in response) {
-                if (response['ExecutionReport']['orderRejectReason'] === 'orderExceedsLimit') {
-                    throw new InsufficientFunds (this.id + ' ' + this.json (response));
-                }
-            }
-            throw new ExchangeError (this.id + ' ' + this.json (response));
-        }
-        return response;
-    }
-
-    handleErrors (httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody) {
-        if (!response) {
-            return; // fallback to default error handler
-        }
-        const error = this.safeValue (response, 'error');
-        if (error) {
-            const code = this.safeValue (error, 'code');
-            const feedback = this.id + ' ' + body;
-            this.throwExactlyMatchedException (this.exceptions['exact'], code, feedback);
-            this.throwBroadlyMatchedException (this.exceptions['broad'], error, feedback);
-            throw new ExchangeError (feedback); // unknown error
-        }
-    }
-};
diff --git a/WebServer/node_modules/ccxt/js/okcoincny.js b/WebServer/node_modules/ccxt/js/okcoincny.js
deleted file mode 100644
index 04c306ff4..000000000
--- a/WebServer/node_modules/ccxt/js/okcoincny.js
+++ /dev/null
@@ -1,38 +0,0 @@
-'use strict';
-
-// ---------------------------------------------------------------------------
-
-const okcoinusd = require ('./okcoinusd.js');
-
-// ---------------------------------------------------------------------------
-
-module.exports = class okcoincny extends okcoinusd {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'okcoincny',
-            'name': 'OKCoin CNY',
-            'countries': [ 'CN' ],
-            'has': {
-                'CORS': false,
-            },
-            'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766792-8be9157a-5ee5-11e7-926c-6d69b8d3378d.jpg',
-                'api': {
-                    'web': 'https://www.okcoin.cn',
-                    'public': 'https://www.okcoin.cn/api',
-                    'private': 'https://www.okcoin.cn/api',
-                },
-                'www': 'https://www.okcoin.cn',
-                'doc': 'https://www.okcoin.cn/rest_getStarted.html',
-                'referral': 'https://www.okcoin.cn',
-            },
-            'markets': {
-                'BTC/CNY': { 'id': 'btc_cny', 'symbol': 'BTC/CNY', 'base': 'BTC', 'quote': 'CNY', 'type': 'spot', 'spot': true, 'future': false },
-                'LTC/CNY': { 'id': 'ltc_cny', 'symbol': 'LTC/CNY', 'base': 'LTC', 'quote': 'CNY', 'type': 'spot', 'spot': true, 'future': false },
-                'ETH/CNY': { 'id': 'eth_cny', 'symbol': 'ETH/CNY', 'base': 'ETH', 'quote': 'CNY', 'type': 'spot', 'spot': true, 'future': false },
-                'ETC/CNY': { 'id': 'etc_cny', 'symbol': 'ETC/CNY', 'base': 'ETC', 'quote': 'CNY', 'type': 'spot', 'spot': true, 'future': false },
-                'BCH/CNY': { 'id': 'bcc_cny', 'symbol': 'BCH/CNY', 'base': 'BCH', 'quote': 'CNY', 'type': 'spot', 'spot': true, 'future': false },
-            },
-        });
-    }
-};
diff --git a/WebServer/node_modules/ccxt/js/okcoinusd.js b/WebServer/node_modules/ccxt/js/okcoinusd.js
deleted file mode 100644
index e0dafa0cb..000000000
--- a/WebServer/node_modules/ccxt/js/okcoinusd.js
+++ /dev/null
@@ -1,1116 +0,0 @@
-'use strict';
-
-//  ---------------------------------------------------------------------------
-
-const Exchange = require ('./base/Exchange');
-const { BadSymbol, ExchangeError, ArgumentsRequired, DDoSProtection, InsufficientFunds, InvalidOrder, OrderNotFound, AuthenticationError, BadRequest } = require ('./base/errors');
-
-//  ---------------------------------------------------------------------------
-
-module.exports = class okcoinusd extends Exchange {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'okcoinusd',
-            'name': 'OKCoin USD',
-            'countries': [ 'CN', 'US' ],
-            'version': 'v1',
-            'rateLimit': 1000, // up to 3000 requests per 5 minutes ≈ 600 requests per minute ≈ 10 requests per second ≈ 100 ms
-            'has': {
-                'CORS': false,
-                'fetchOHLCV': true,
-                'fetchOrder': true,
-                'fetchOrders': false,
-                'fetchOpenOrders': true,
-                'fetchClosedOrders': true,
-                'fetchTickers': true,
-                'withdraw': true,
-                'futures': false,
-            },
-            'extension': '.do', // appended to endpoint URL
-            'timeframes': {
-                '1m': '1min',
-                '3m': '3min',
-                '5m': '5min',
-                '15m': '15min',
-                '30m': '30min',
-                '1h': '1hour',
-                '2h': '2hour',
-                '4h': '4hour',
-                '6h': '6hour',
-                '12h': '12hour',
-                '1d': '1day',
-                '3d': '3day',
-                '1w': '1week',
-            },
-            'api': {
-                'v3': {
-                    'get': [
-                        'futures/pc/market/futuresCoin',
-                    ],
-                },
-                'web': {
-                    'get': [
-                        'futures/pc/market/marketOverview',
-                        'spot/markets/index-tickers',
-                        'spot/markets/currencies',
-                        'spot/markets/products',
-                        'spot/markets/tickers',
-                        'spot/user-level',
-                    ],
-                    'post': [
-                        'futures/pc/market/futuresCoin',
-                    ],
-                },
-                'public': {
-                    'get': [
-                        'depth',
-                        'exchange_rate',
-                        'future_depth',
-                        'future_estimated_price',
-                        'future_hold_amount',
-                        'future_index',
-                        'future_kline',
-                        'future_price_limit',
-                        'future_ticker',
-                        'future_trades',
-                        'kline',
-                        'otcs',
-                        'ticker',
-                        'tickers',
-                        'trades',
-                    ],
-                },
-                'private': {
-                    'post': [
-                        'account_records',
-                        'batch_trade',
-                        'borrow_money',
-                        'borrow_order_info',
-                        'borrows_info',
-                        'cancel_borrow',
-                        'cancel_order',
-                        'cancel_otc_order',
-                        'cancel_withdraw',
-                        'funds_transfer',
-                        'future_batch_trade',
-                        'future_cancel',
-                        'future_devolve',
-                        'future_explosive',
-                        'future_order_info',
-                        'future_orders_info',
-                        'future_position',
-                        'future_position_4fix',
-                        'future_trade',
-                        'future_trades_history',
-                        'future_userinfo',
-                        'future_userinfo_4fix',
-                        'lend_depth',
-                        'order_fee',
-                        'order_history',
-                        'order_info',
-                        'orders_info',
-                        'otc_order_history',
-                        'otc_order_info',
-                        'repayment',
-                        'submit_otc_order',
-                        'trade',
-                        'trade_history',
-                        'trade_otc_order',
-                        'wallet_info',
-                        'withdraw',
-                        'withdraw_info',
-                        'unrepayments_info',
-                        'userinfo',
-                    ],
-                },
-            },
-            'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/27766791-89ffb502-5ee5-11e7-8a5b-c5950b68ac65.jpg',
-                'api': {
-                    'v3': 'https://www.okcoin.com/v3',
-                    'web': 'https://www.okcoin.com/v2',
-                    'public': 'https://www.okcoin.com/api',
-                    'private': 'https://www.okcoin.com',
-                },
-                'www': 'https://www.okcoin.com',
-                'doc': [
-                    'https://www.okcoin.com/docs/en/',
-                    'https://www.npmjs.com/package/okcoin.com',
-                ],
-                'referral': 'https://www.okcoin.com/account/register?flag=activity&channelId=600001513',
-                'fees': 'https://support.okcoin.com/hc/en-us/articles/360015261532-OKCoin-Fee-Rates',
-            },
-            // these are okcoin.com fees, okex fees are in okex.js
-            'fees': {
-                'trading': {
-                    'taker': 0.002,
-                    'maker': 0.001,
-                },
-            },
-            'exceptions': {
-                // see https://github.com/okcoin-okex/API-docs-OKEx.com/blob/master/API-For-Spot-EN/Error%20Code%20For%20Spot.md
-                '10000': ExchangeError, // "Required field, can not be null"
-                '10001': DDoSProtection, // "Request frequency too high to exceed the limit allowed"
-                '10005': AuthenticationError, // "'SecretKey' does not exist"
-                '10006': AuthenticationError, // "'Api_key' does not exist"
-                '10007': AuthenticationError, // "Signature does not match"
-                '1002': InsufficientFunds, // "The transaction amount exceed the balance"
-                '1003': InvalidOrder, // "The transaction amount is less than the minimum requirement"
-                '1004': InvalidOrder, // "The transaction amount is less than 0"
-                '1013': InvalidOrder, // no contract type (PR-1101)
-                '1027': InvalidOrder, // createLimitBuyOrder(symbol, 0, 0): Incorrect parameter may exceeded limits
-                '1050': InvalidOrder, // returned when trying to cancel an order that was filled or canceled previously
-                '1217': InvalidOrder, // "Order was sent at ±5% of the current market price. Please resend"
-                '10014': InvalidOrder, // "Order price must be between 0 and 1,000,000"
-                '1009': OrderNotFound, // for spot markets, cancelling closed order
-                '1019': OrderNotFound, // order closed? ("Undo order failed")
-                '1051': OrderNotFound, // for spot markets, cancelling "just closed" order
-                '10009': OrderNotFound, // for spot markets, "Order does not exist"
-                '20015': OrderNotFound, // for future markets
-                '10008': BadRequest, // Illegal URL parameter
-                '1007': BadSymbol, // No trading market information
-                // todo: sort out below
-                // 10000 Required parameter is empty
-                // 10001 Request frequency too high to exceed the limit allowed
-                // 10002 Authentication failure
-                // 10002 System error
-                // 10003 This connection has requested other user data
-                // 10004 Request failed
-                // 10005 api_key or sign is invalid, 'SecretKey' does not exist
-                // 10006 'Api_key' does not exist
-                // 10007 Signature does not match
-                // 10008 Illegal parameter, Parameter erorr
-                // 10009 Order does not exist
-                // 10010 Insufficient funds
-                // 10011 Amount too low
-                // 10012 Only btc_usd ltc_usd supported
-                // 10013 Only support https request
-                // 10014 Order price must be between 0 and 1,000,000
-                // 10015 Order price differs from current market price too much / Channel subscription temporally not available
-                // 10016 Insufficient coins balance
-                // 10017 API authorization error / WebSocket authorization error
-                // 10018 borrow amount less than lower limit [usd:100,btc:0.1,ltc:1]
-                // 10019 loan agreement not checked
-                // 1002 The transaction amount exceed the balance
-                // 10020 rate cannot exceed 1%
-                // 10021 rate cannot less than 0.01%
-                // 10023 fail to get latest ticker
-                // 10024 balance not sufficient
-                // 10025 quota is full, cannot borrow temporarily
-                // 10026 Loan (including reserved loan) and margin cannot be withdrawn
-                // 10027 Cannot withdraw within 24 hrs of authentication information modification
-                // 10028 Withdrawal amount exceeds daily limit
-                // 10029 Account has unpaid loan, please cancel/pay off the loan before withdraw
-                // 1003 The transaction amount is less than the minimum requirement
-                // 10031 Deposits can only be withdrawn after 6 confirmations
-                // 10032 Please enabled phone/google authenticator
-                // 10033 Fee higher than maximum network transaction fee
-                // 10034 Fee lower than minimum network transaction fee
-                // 10035 Insufficient BTC/LTC
-                // 10036 Withdrawal amount too low
-                // 10037 Trade password not set
-                // 1004 The transaction amount is less than 0
-                // 10040 Withdrawal cancellation fails
-                // 10041 Withdrawal address not exsit or approved
-                // 10042 Admin password error
-                // 10043 Account equity error, withdrawal failure
-                // 10044 fail to cancel borrowing order
-                // 10047 this function is disabled for sub-account
-                // 10048 withdrawal information does not exist
-                // 10049 User can not have more than 50 unfilled small orders (amount<0.15BTC)
-                // 10050 can't cancel more than once
-                // 10051 order completed transaction
-                // 10052 not allowed to withdraw
-                // 10064 after a USD deposit, that portion of assets will not be withdrawable for the next 48 hours
-                // 1008 No latest market information
-                // 1009 No order
-                // 1010 Different user of the cancelled order and the original order
-                // 10100 User account frozen
-                // 10101 order type is wrong
-                // 10102 incorrect ID
-                // 10103 the private otc order's key incorrect
-                // 10106 API key domain not matched
-                // 1011 No documented user
-                // 1013 No order type
-                // 1014 No login
-                // 1015 No market depth information
-                // 1017 Date error
-                // 1018 Order failed
-                // 1019 Undo order failed
-                // 10216 Non-available API / non-public API
-                // 1024 Currency does not exist
-                // 1025 No chart type
-                // 1026 No base currency quantity
-                // 1027 Incorrect parameter may exceeded limits
-                // 1028 Reserved decimal failed
-                // 1029 Preparing
-                // 1030 Account has margin and futures, transactions can not be processed
-                // 1031 Insufficient Transferring Balance
-                // 1032 Transferring Not Allowed
-                // 1035 Password incorrect
-                // 1036 Google Verification code Invalid
-                // 1037 Google Verification code incorrect
-                // 1038 Google Verification replicated
-                // 1039 Message Verification Input exceed the limit
-                // 1040 Message Verification invalid
-                // 1041 Message Verification incorrect
-                // 1042 Wrong Google Verification Input exceed the limit
-                // 1043 Login password cannot be same as the trading password
-                // 1044 Old password incorrect
-                // 1045 2nd Verification Needed
-                // 1046 Please input old password
-                // 1048 Account Blocked
-                // 1050 Orders have been withdrawn or withdrawn
-                // 1051 Order completed
-                // 1201 Account Deleted at 00: 00
-                // 1202 Account Not Exist
-                // 1203 Insufficient Balance
-                // 1204 Invalid currency
-                // 1205 Invalid Account
-                // 1206 Cash Withdrawal Blocked
-                // 1207 Transfer Not Support
-                // 1208 No designated account
-                // 1209 Invalid api
-                // 1216 Market order temporarily suspended. Please send limit order
-                // 1217 Order was sent at ±5% of the current market price. Please resend
-                // 1218 Place order failed. Please try again later
-                // 20001 User does not exist
-                // 20002 Account frozen
-                // 20003 Account frozen due to forced liquidation
-                // 20004 Contract account frozen
-                // 20005 User contract account does not exist
-                // 20006 Required field missing
-                // 20007 Illegal parameter
-                // 20008 Contract account balance is too low
-                // 20009 Contract status error
-                // 20010 Risk rate ratio does not exist
-                // 20011 Risk rate lower than 90%/80% before opening BTC position with 10x/20x leverage. or risk rate lower than 80%/60% before opening LTC position with 10x/20x leverage
-                // 20012 Risk rate lower than 90%/80% after opening BTC position with 10x/20x leverage. or risk rate lower than 80%/60% after opening LTC position with 10x/20x leverage
-                // 20013 Temporally no counter party price
-                // 20014 System error
-                // 20015 Order does not exist
-                // 20016 Close amount bigger than your open positions, liquidation quantity bigger than holding
-                // 20017 Not authorized/illegal operation/illegal order ID
-                // 20018 Order price cannot be more than 103-105% or less than 95-97% of the previous minute price
-                // 20019 IP restricted from accessing the resource
-                // 20020 Secret key does not exist
-                // 20021 Index information does not exist
-                // 20022 Wrong API interface (Cross margin mode shall call cross margin API, fixed margin mode shall call fixed margin API)
-                // 20023 Account in fixed-margin mode
-                // 20024 Signature does not match
-                // 20025 Leverage rate error
-                // 20026 API Permission Error
-                // 20027 no transaction record
-                // 20028 no such contract
-                // 20029 Amount is large than available funds
-                // 20030 Account still has debts
-                // 20038 Due to regulation, this function is not availavle in the country/region your currently reside in.
-                // 20049 Request frequency too high
-                // 20100 request time out
-                // 20101 the format of data is error
-                // 20102 invalid login
-                // 20103 event type error
-                // 20104 subscription type error
-                // 20107 JSON format error
-                // 20115 The quote is not match
-                // 20116 Param not match
-                // 21020 Contracts are being delivered, orders cannot be placed
-                // 21021 Contracts are being settled, contracts cannot be placed
-            },
-            'options': {
-                'marketBuyPrice': false,
-                'fetchOHLCVWarning': true,
-                'contractTypes': {
-                    '1': 'this_week',
-                    '2': 'next_week',
-                    '4': 'quarter',
-                },
-                'fetchTickersMethod': 'fetch_tickers_from_api',
-            },
-        });
-    }
-
-    async fetchMarkets (params = {}) {
-        // TODO: they have a new fee schedule as of Feb 7
-        // the new fees are progressive and depend on 30-day traded volume
-        // the following is the worst case
-        const result = [];
-        const spotResponse = await this.webGetSpotMarketsProducts ();
-        //
-        //     {
-        //         "code": 0,
-        //         "data": [
-        //             {
-        //                 "baseCurrency":0,
-        //                 "brokerId":0,
-        //                 "callAuctionOrCallNoCancelAuction":false,
-        //                 "callNoCancelSwitchTime":{},
-        //                 "collect":"0",
-        //                 "continuousSwitchTime":{},
-        //                 "groupId":1,
-        //                 "isMarginOpen":true,
-        //                 "listDisplay":0,
-        //                 "marginRiskPreRatio":1.2,
-        //                 "marginRiskRatio":1.1,
-        //                 "marketFrom":118,
-        //                 "maxMarginLeverage":5,
-        //                 "maxPriceDigit":1,
-        //                 "maxSizeDigit":8,
-        //                 "mergeTypes":"0.1,1,10",
-        //                 "minTradeSize":0.00100000,
-        //                 "online":1,
-        //                 "productId":20,
-        //                 "quoteCurrency":7,
-        //                 "quoteIncrement":"0.1",
-        //                 "quotePrecision":2,
-        //                 "sort":30038,
-        //                 "symbol":"btc_usdt",
-        //                 "tradingMode":3
-        //             },
-        //         ]
-        //     }
-        //
-        const spotMarkets = this.safeValue (spotResponse, 'data', []);
-        let markets = spotMarkets;
-        if (this.has['futures']) {
-            const futuresResponse = await this.v3GetFuturesPcMarketFuturesCoin ({
-                'currencyCode': 0,
-            });
-            //
-            //     {
-            //         "msg":"success",
-            //         "code":0,
-            //         "detailMsg":"",
-            //         "data": [
-            //             {
-            //                 "symbolId":0,
-            //                 "symbol":"f_usd_btc",
-            //                 "iceSingleAvgMinAmount":2,
-            //                 "minTradeSize":1,
-            //                 "iceSingleAvgMaxAmount":500,
-            //                 "contractDepthLevel":["0.01","0.2"],
-            //                 "dealAllMaxAmount":999,
-            //                 "maxSizeDigit":4,
-            //                 "contracts":[
-            //                     { "marketFrom":34, "id":201905240000034, "type":1, "desc":"BTC0524" },
-            //                     { "marketFrom":13, "id":201905310000013, "type":2, "desc":"BTC0531" },
-            //                     { "marketFrom":12, "id":201906280000012, "type":4, "desc":"BTC0628" },
-            //                 ],
-            //                 "maxPriceDigit":2,
-            //                 "nativeRate":1,
-            //                 "quote":"usd",
-            //                 "nativeCurrency":"usd",
-            //                 "nativeCurrencyMark":"$",
-            //                 "contractSymbol":0,
-            //                 "unitAmount":100.00,
-            //                 "symbolMark":"฿",
-            //                 "symbolDesc":"BTC"
-            //             },
-            //         ]
-            //     }
-            //
-            const data = this.safeValue (futuresResponse, 'data', {});
-            const futuresMarkets = this.safeValue (data, 'usd', []);
-            markets = this.arrayConcat (spotMarkets, futuresMarkets);
-        }
-        for (let i = 0; i < markets.length; i++) {
-            const market = markets[i];
-            const id = this.safeString (market, 'symbol');
-            let symbol = undefined;
-            let base = undefined;
-            let quote = undefined;
-            let baseId = undefined;
-            let quoteId = undefined;
-            let baseNumericId = undefined;
-            let quoteNumericId = undefined;
-            let lowercaseId = undefined;
-            let uppercaseBaseId = undefined;
-            const precision = {
-                'amount': this.safeInteger (market, 'maxSizeDigit'),
-                'price': this.safeInteger (market, 'maxPriceDigit'),
-            };
-            const minAmount = this.safeFloat (market, 'minTradeSize');
-            const minPrice = Math.pow (10, -precision['price']);
-            let contracts = this.safeValue (market, 'contracts');
-            if (contracts === undefined) {
-                // spot markets
-                lowercaseId = id;
-                const parts = id.split ('_');
-                baseId = parts[0];
-                quoteId = parts[1];
-                baseNumericId = this.safeInteger (market, 'baseCurrency');
-                quoteNumericId = this.safeInteger (market, 'quoteCurrency');
-                base = this.safeCurrencyCode (baseId);
-                quote = this.safeCurrencyCode (quoteId);
-                contracts = [{}];
-            } else {
-                // futures markets
-                quoteId = this.safeStringLower2 (market, 'quote', 'denomination');
-                uppercaseBaseId = this.safeStringLower (market, 'symbolDesc');
-                baseId = uppercaseBaseId.toLowerCase ();
-                lowercaseId = baseId + '_' + quoteId;
-                base = this.safeCurrencyCode (uppercaseBaseId);
-                quote = this.safeCurrencyCode (quoteId);
-            }
-            for (let k = 0; k < contracts.length; k++) {
-                const contract = contracts[k];
-                let type = this.safeString (contract, 'type', 'spot');
-                let contractType = undefined;
-                let spot = true;
-                let future = false;
-                let active = true;
-                if (type === 'spot') {
-                    symbol = base + '/' + quote;
-                    active = market['online'] !== 0;
-                } else {
-                    const contractId = this.safeString (contract, 'id');
-                    symbol = base + '-' + quote + '-' + contractId.slice (2, 8);
-                    contractType = this.safeString (this.options['contractTypes'], type);
-                    type = 'future';
-                    spot = false;
-                    future = true;
-                }
-                const fees = this.safeValue2 (this.fees, type, 'trading', {});
-                result.push (this.extend (fees, {
-                    'id': id,
-                    'lowercaseId': lowercaseId,
-                    'contractType': contractType,
-                    'symbol': symbol,
-                    'base': base,
-                    'quote': quote,
-                    'baseId': baseId,
-                    'quoteId': quoteId,
-                    'baseNumericId': baseNumericId,
-                    'quoteNumericId': quoteNumericId,
-                    'info': market,
-                    'type': type,
-                    'spot': spot,
-                    'future': future,
-                    'active': active,
-                    'precision': precision,
-                    'limits': {
-                        'amount': {
-                            'min': minAmount,
-                            'max': undefined,
-                        },
-                        'price': {
-                            'min': minPrice,
-                            'max': undefined,
-                        },
-                        'cost': {
-                            'min': minAmount * minPrice,
-                            'max': undefined,
-                        },
-                    },
-                }));
-            }
-        }
-        return result;
-    }
-
-    calculateFee (symbol, type, side, amount, price, takerOrMaker = 'taker', params = {}) {
-        const market = this.markets[symbol];
-        let key = 'quote';
-        const rate = market[takerOrMaker];
-        let cost = parseFloat (this.costToPrecision (symbol, amount * rate));
-        if (side === 'sell') {
-            cost *= price;
-        } else {
-            key = 'base';
-        }
-        return {
-            'type': takerOrMaker,
-            'currency': market[key],
-            'rate': rate,
-            'cost': parseFloat (this.feeToPrecision (symbol, cost)),
-        };
-    }
-
-    async fetchTickersFromApi (symbols = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {};
-        const response = await this.publicGetTickers (this.extend (request, params));
-        const tickers = response['tickers'];
-        const timestamp = this.safeTimestamp (response, 'date');
-        const result = {};
-        for (let i = 0; i < tickers.length; i++) {
-            let ticker = tickers[i];
-            ticker = this.parseTicker (this.extend (tickers[i], { 'timestamp': timestamp }));
-            const symbol = ticker['symbol'];
-            result[symbol] = ticker;
-        }
-        return result;
-    }
-
-    async fetchTickersFromWeb (symbols = undefined, params = {}) {
-        await this.loadMarkets ();
-        const request = {};
-        const response = await this.webGetSpotMarketsTickers (this.extend (request, params));
-        const tickers = this.safeValue (response, 'data');
-        const result = {};
-        for (let i = 0; i < tickers.length; i++) {
-            const ticker = this.parseTicker (tickers[i]);
-            const symbol = ticker['symbol'];
-            result[symbol] = ticker;
-        }
-        return result;
-    }
-
-    async fetchTickers (symbols = undefined, params = {}) {
-        const method = this.options['fetchTickersMethod'];
-        return await this[method] (symbols, params);
-    }
-
-    async fetchOrderBook (symbol = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'publicGetFutureDepth' : 'publicGetDepth';
-        const request = this.createRequest (market, params);
-        if (limit !== undefined) {
-            request['size'] = limit;
-        }
-        const response = await this[method] (request);
-        return this.parseOrderBook (response);
-    }
-
-    parseTicker (ticker, market = undefined) {
-        //
-        //     {              buy:   "48.777300",
-        //                 change:   "-1.244500",
-        //       changePercentage:   "-2.47%",
-        //                  close:   "49.064000",
-        //            createdDate:    1531704852254,
-        //             currencyId:    527,
-        //                dayHigh:   "51.012500",
-        //                 dayLow:   "48.124200",
-        //                   high:   "51.012500",
-        //                inflows:   "0",
-        //                   last:   "49.064000",
-        //                    low:   "48.124200",
-        //             marketFrom:    627,
-        //                   name: {  },
-        //                   open:   "50.308500",
-        //               outflows:   "0",
-        //              productId:    527,
-        //                   sell:   "49.064000",
-        //                 symbol:   "zec_okb",
-        //                 volume:   "1049.092535"   }
-        //
-        const timestamp = this.safeInteger2 (ticker, 'timestamp', 'createdDate');
-        let symbol = undefined;
-        if (market === undefined) {
-            if ('symbol' in ticker) {
-                const marketId = ticker['symbol'];
-                if (marketId in this.markets_by_id) {
-                    market = this.markets_by_id[marketId];
-                } else {
-                    const [ baseId, quoteId ] = ticker['symbol'].split ('_');
-                    const base = this.safeCurrencyCode (baseId);
-                    const quote = this.safeCurrencyCode (quoteId);
-                    symbol = base + '/' + quote;
-                }
-            }
-        }
-        if (market !== undefined) {
-            symbol = market['symbol'];
-        }
-        const last = this.safeFloat (ticker, 'last');
-        const open = this.safeFloat (ticker, 'open');
-        const change = this.safeFloat (ticker, 'change');
-        const percentage = this.safeFloat (ticker, 'changePercentage');
-        return {
-            'symbol': symbol,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'high': this.safeFloat (ticker, 'high'),
-            'low': this.safeFloat (ticker, 'low'),
-            'bid': this.safeFloat (ticker, 'buy'),
-            'bidVolume': undefined,
-            'ask': this.safeFloat (ticker, 'sell'),
-            'askVolume': undefined,
-            'vwap': undefined,
-            'open': open,
-            'close': last,
-            'last': last,
-            'previousClose': undefined,
-            'change': change,
-            'percentage': percentage,
-            'average': undefined,
-            'baseVolume': this.safeFloat2 (ticker, 'vol', 'volume'),
-            'quoteVolume': undefined,
-            'info': ticker,
-        };
-    }
-
-    async fetchTicker (symbol = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'publicGetFutureTicker' : 'publicGetTicker';
-        const request = this.createRequest (market, params);
-        const response = await this[method] (request);
-        let ticker = this.safeValue (response, 'ticker');
-        if (ticker === undefined) {
-            throw new ExchangeError (this.id + ' fetchTicker returned an empty response: ' + this.json (response));
-        }
-        const timestamp = this.safeTimestamp (response, 'date');
-        if (timestamp !== undefined) {
-            ticker = this.extend (ticker, { 'timestamp': timestamp });
-        }
-        return this.parseTicker (ticker, market);
-    }
-
-    parseTrade (trade, market = undefined) {
-        let symbol = undefined;
-        if (market) {
-            symbol = market['symbol'];
-        }
-        const timestamp = this.safeInteger (trade, 'date_ms');
-        const id = this.safeString (trade, 'tid');
-        const type = undefined;
-        const side = this.safeString (trade, 'type');
-        const price = this.safeFloat (trade, 'price');
-        const amount = this.safeFloat (trade, 'amount');
-        let cost = undefined;
-        if (price !== undefined) {
-            if (amount !== undefined) {
-                cost = price * amount;
-            }
-        }
-        return {
-            'id': id,
-            'info': trade,
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'symbol': symbol,
-            'order': undefined,
-            'type': type,
-            'side': side,
-            'takerOrMaker': undefined,
-            'price': price,
-            'amount': amount,
-            'cost': cost,
-            'fee': undefined,
-        };
-    }
-
-    async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'publicGetFutureTrades' : 'publicGetTrades';
-        const request = this.createRequest (market, params);
-        const response = await this[method] (request);
-        return this.parseTrades (response, market, since, limit);
-    }
-
-    parseOHLCV (ohlcv, market = undefined, timeframe = '1m', since = undefined, limit = undefined) {
-        const numElements = ohlcv.length;
-        const volumeIndex = (numElements > 6) ? 6 : 5;
-        return [
-            ohlcv[0], // timestamp
-            parseFloat (ohlcv[1]), // Open
-            parseFloat (ohlcv[2]), // High
-            parseFloat (ohlcv[3]), // Low
-            parseFloat (ohlcv[4]), // Close
-            // parseFloat (ohlcv[5]), // quote volume
-            // parseFloat (ohlcv[6]), // base volume
-            parseFloat (ohlcv[volumeIndex]), // okex will return base volume in the 7th element for future markets
-        ];
-    }
-
-    async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'publicGetFutureKline' : 'publicGetKline';
-        const request = this.createRequest (market, {
-            'type': this.timeframes[timeframe],
-        });
-        if (since !== undefined) {
-            request['since'] = parseInt ((this.milliseconds () - 86400000) / 1000); // default last 24h
-        }
-        if (limit !== undefined) {
-            if (this.options['fetchOHLCVWarning']) {
-                throw new ExchangeError (this.id + ' fetchOHLCV counts "limit" candles backwards in chronological ascending order, therefore the "limit" argument for ' + this.id + ' is disabled. Set ' + this.id + '.options["fetchOHLCVWarning"] = false to suppress this warning message.');
-            }
-            request['size'] = parseInt (limit); // max is 1440 candles
-        }
-        const response = await this[method] (this.extend (request, params));
-        return this.parseOHLCVs (response, market, timeframe, since, limit);
-    }
-
-    async fetchBalance (params = {}) {
-        await this.loadMarkets ();
-        const response = await this.privatePostUserinfo (params);
-        const info = this.safeValue (response, 'info', {});
-        const balances = this.safeValue (info, 'funds', {});
-        const result = { 'info': response };
-        let ids = Object.keys (balances['free']);
-        let usedField = 'freezed';
-        // wtf, okex?
-        // https://github.com/okcoin-okex/API-docs-OKEx.com/commit/01cf9dd57b1f984a8737ef76a037d4d3795d2ac7
-        if (!(usedField in balances)) {
-            usedField = 'holds';
-        }
-        const usedKeys = Object.keys (balances[usedField]);
-        ids = this.arrayConcat (ids, usedKeys);
-        for (let i = 0; i < ids.length; i++) {
-            const id = ids[i];
-            const code = this.safeCurrencyCode (id);
-            const account = this.account ();
-            account['free'] = this.safeFloat (balances['free'], id);
-            account['used'] = this.safeFloat (balances[usedField], id);
-            result[code] = account;
-        }
-        return this.parseBalance (result);
-    }
-
-    async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'privatePostFutureTrade' : 'privatePostTrade';
-        const orderSide = (type === 'market') ? (side + '_market') : side;
-        const isMarketBuy = ((market['spot']) && (type === 'market') && (side === 'buy') && (!this.options['marketBuyPrice']));
-        const orderPrice = isMarketBuy ? this.safeFloat (params, 'cost') : price;
-        const request = this.createRequest (market, {
-            'type': orderSide,
-        });
-        if (market['future']) {
-            request['match_price'] = (type === 'market') ? 1 : 0; // match best counter party price? 0 or 1, ignores price if 1
-            request['lever_rate'] = 10; // leverage rate value: 10 or 20 (10 by default)
-            request['type'] = (side === 'buy') ? '1' : '2';
-        } else if (type === 'market') {
-            if (side === 'buy') {
-                if (!orderPrice) {
-                    if (this.options['marketBuyPrice']) {
-                        // eslint-disable-next-line quotes
-                        throw new ExchangeError (this.id + " market buy orders require a price argument (the amount you want to spend or the cost of the order) when this.options['marketBuyPrice'] is true.");
-                    } else {
-                        // eslint-disable-next-line quotes
-                        throw new ExchangeError (this.id + " market buy orders require an additional cost parameter, cost = price * amount. If you want to pass the cost of the market order (the amount you want to spend) in the price argument (the default " + this.id + " behaviour), set this.options['marketBuyPrice'] = true. It will effectively suppress this warning exception as well.");
-                    }
-                } else {
-                    request['price'] = orderPrice;
-                }
-            } else {
-                request['amount'] = amount;
-            }
-        }
-        if (type !== 'market') {
-            request['price'] = orderPrice;
-            request['amount'] = amount;
-        }
-        params = this.omit (params, 'cost');
-        const response = await this[method] (this.extend (request, params));
-        const timestamp = this.milliseconds ();
-        return {
-            'info': response,
-            'id': this.safeString (response, 'order_id'),
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'lastTradeTimestamp': undefined,
-            'status': undefined,
-            'symbol': symbol,
-            'type': type,
-            'side': side,
-            'price': price,
-            'amount': amount,
-            'filled': undefined,
-            'remaining': undefined,
-            'cost': undefined,
-            'trades': undefined,
-            'fee': undefined,
-        };
-    }
-
-    async cancelOrder (id, symbol = undefined, params = {}) {
-        if (symbol === undefined) {
-            throw new ArgumentsRequired (this.id + ' cancelOrder() requires a symbol argument');
-        }
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'privatePostFutureCancel' : 'privatePostCancelOrder';
-        const request = this.createRequest (market, {
-            'order_id': id,
-        });
-        const response = await this[method] (this.extend (request, params));
-        return response;
-    }
-
-    parseOrderStatus (status) {
-        const statuses = {
-            '-1': 'canceled',
-            '0': 'open',
-            '1': 'open',
-            '2': 'closed',
-            '3': 'open',
-            '4': 'canceled',
-        };
-        return this.safeValue (statuses, status, status);
-    }
-
-    parseOrderSide (side) {
-        if (side === 1) {
-            return 'buy'; // open long position
-        } else if (side === 2) {
-            return 'sell'; // open short position
-        } else if (side === 3) {
-            return 'sell'; // liquidate long position
-        } else if (side === 4) {
-            return 'buy'; // liquidate short position
-        }
-        return side;
-    }
-
-    parseOrder (order, market = undefined) {
-        let side = undefined;
-        let type = undefined;
-        if ('type' in order) {
-            if ((order['type'] === 'buy') || (order['type'] === 'sell')) {
-                side = order['type'];
-                type = 'limit';
-            } else if (order['type'] === 'buy_market') {
-                side = 'buy';
-                type = 'market';
-            } else if (order['type'] === 'sell_market') {
-                side = 'sell';
-                type = 'market';
-            } else {
-                side = this.parseOrderSide (order['type']);
-                if (('contract_name' in order) || ('lever_rate' in order)) {
-                    type = 'margin';
-                }
-            }
-        }
-        const status = this.parseOrderStatus (this.safeString (order, 'status'));
-        let symbol = undefined;
-        if (market === undefined) {
-            const marketId = this.safeString (order, 'symbol');
-            if (marketId in this.markets_by_id) {
-                market = this.markets_by_id[marketId];
-            }
-        }
-        if (market) {
-            symbol = market['symbol'];
-        }
-        const createDateField = this.getCreateDateField ();
-        const timestamp = this.safeInteger (order, createDateField);
-        let amount = this.safeFloat (order, 'amount');
-        const filled = this.safeFloat (order, 'deal_amount');
-        amount = Math.max (amount, filled);
-        let remaining = Math.max (0, amount - filled);
-        if (type === 'market') {
-            remaining = 0;
-        }
-        let average = this.safeFloat (order, 'avg_price');
-        // https://github.com/ccxt/ccxt/issues/2452
-        average = this.safeFloat (order, 'price_avg', average);
-        const cost = average * filled;
-        return {
-            'info': order,
-            'id': this.safeString (order, 'order_id'),
-            'timestamp': timestamp,
-            'datetime': this.iso8601 (timestamp),
-            'lastTradeTimestamp': undefined,
-            'symbol': symbol,
-            'type': type,
-            'side': side,
-            'price': this.safeFloat (order, 'price'),
-            'average': average,
-            'cost': cost,
-            'amount': amount,
-            'filled': filled,
-            'remaining': remaining,
-            'status': status,
-            'fee': undefined,
-        };
-    }
-
-    getCreateDateField () {
-        // needed for derived exchanges
-        // allcoin typo create_data instead of create_date
-        return 'create_date';
-    }
-
-    getOrdersField () {
-        // needed for derived exchanges
-        // allcoin typo order instead of orders (expected based on their API docs)
-        return 'orders';
-    }
-
-    async fetchOrder (id, symbol = undefined, params = {}) {
-        if (symbol === undefined) {
-            throw new ExchangeError (this.id + ' fetchOrder requires a symbol argument');
-        }
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        const method = market['future'] ? 'privatePostFutureOrderInfo' : 'privatePostOrderInfo';
-        const request = this.createRequest (market, {
-            'order_id': id,
-            // 'status': 0, // 0 for unfilled orders, 1 for filled orders
-            // 'current_page': 1, // current page number
-            // 'page_length': 200, // number of orders returned per page, maximum 200
-        });
-        const response = await this[method] (this.extend (request, params));
-        const ordersField = this.getOrdersField ();
-        const numOrders = response[ordersField].length;
-        if (numOrders > 0) {
-            return this.parseOrder (response[ordersField][0]);
-        }
-        throw new OrderNotFound (this.id + ' order ' + id + ' not found');
-    }
-
-    async fetchOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        if (symbol === undefined) {
-            throw new ExchangeError (this.id + ' fetchOrders requires a symbol argument');
-        }
-        await this.loadMarkets ();
-        const market = this.market (symbol);
-        let method = market['future'] ? 'privatePostFutureOrdersInfo' : 'privatePost';
-        let request = this.createRequest (market);
-        const order_id_in_params = ('order_id' in params);
-        if (market['future']) {
-            if (!order_id_in_params) {
-                throw new ExchangeError (this.id + ' fetchOrders() requires order_id param for futures market ' + symbol + ' (a string of one or more order ids, comma-separated)');
-            }
-        } else {
-            const status = ('type' in params) ? params['type'] : params['status'];
-            if (typeof status === 'undefined') {
-                const name = order_id_in_params ? 'type' : 'status';
-                throw new ExchangeError (this.id + ' fetchOrders() requires ' + name + ' param for spot market ' + symbol + ' (0 - for unfilled orders, 1 - for filled/canceled orders)');
-            }
-            if (order_id_in_params) {
-                method += 'OrdersInfo';
-                request = this.extend (request, {
-                    'type': status,
-                    'order_id': params['order_id'],
-                });
-            } else {
-                method += 'OrderHistory';
-                request = this.extend (request, {
-                    'status': status,
-                    'current_page': 1, // current page number
-                    'page_length': 200, // number of orders returned per page, maximum 200
-                });
-            }
-            params = this.omit (params, [ 'type', 'status' ]);
-        }
-        const response = await this[method] (this.extend (request, params));
-        const ordersField = this.getOrdersField ();
-        return this.parseOrders (response[ordersField], market, since, limit);
-    }
-
-    async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        const request = {
-            'status': 0, // 0 for unfilled orders, 1 for filled orders
-        };
-        return await this.fetchOrders (symbol, since, limit, this.extend (request, params));
-    }
-
-    async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
-        const request = {
-            'status': 1, // 0 for unfilled orders, 1 for filled orders
-        };
-        return await this.fetchOrders (symbol, since, limit, this.extend (request, params));
-    }
-
-    async withdraw (code, amount, address, tag = undefined, params = {}) {
-        this.checkAddress (address);
-        await this.loadMarkets ();
-        const currency = this.currency (code);
-        // if (amount < 0.01)
-        //     throw new ExchangeError (this.id + ' withdraw() requires amount > 0.01');
-        // for some reason they require to supply a pair of currencies for withdrawing one currency
-        const currencyId = currency['id'] + '_usd';
-        if (tag) {
-            address = address + ':' + tag;
-        }
-        const request = {
-            'symbol': currencyId,
-            'withdraw_address': address,
-            'withdraw_amount': amount,
-            'target': 'address', // or 'okcn', 'okcom', 'okex'
-        };
-        let query = params;
-        if ('chargefee' in query) {
-            request['chargefee'] = query['chargefee'];
-            query = this.omit (query, 'chargefee');
-        } else {
-            throw new ExchangeError (this.id + ' withdraw() requires a `chargefee` parameter');
-        }
-        if (this.password) {
-            request['trade_pwd'] = this.password;
-        } else if ('password' in query) {
-            request['trade_pwd'] = query['password'];
-            query = this.omit (query, 'password');
-        } else if ('trade_pwd' in query) {
-            request['trade_pwd'] = query['trade_pwd'];
-            query = this.omit (query, 'trade_pwd');
-        }
-        const passwordInRequest = ('trade_pwd' in request);
-        if (!passwordInRequest) {
-            throw new ExchangeError (this.id + ' withdraw() requires this.password set on the exchange instance or a password / trade_pwd parameter');
-        }
-        const response = await this.privatePostWithdraw (this.extend (request, query));
-        return {
-            'info': response,
-            'id': this.safeString (response, 'withdraw_id'),
-        };
-    }
-
-    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
-        let url = '/';
-        const isWebApi = (api === 'web') || (api === 'v3');
-        if (!isWebApi) {
-            url += this.version + '/';
-        }
-        url += path;
-        if (!isWebApi) {
-            url += this.extension;
-        }
-        if (api === 'private') {
-            this.checkRequiredCredentials ();
-            const query = this.keysort (this.extend ({
-                'api_key': this.apiKey,
-            }, params));
-            // secret key must be at the end of query
-            const queryString = this.rawencode (query) + '&secret_key=' + this.secret;
-            query['sign'] = this.hash (this.encode (queryString)).toUpperCase ();
-            body = this.urlencode (query);
-            headers = { 'Content-Type': 'application/x-www-form-urlencoded' };
-        } else {
-            if (Object.keys (params).length) {
-                url += '?' + this.urlencode (params);
-            }
-        }
-        url = this.urls['api'][api] + url;
-        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
-    }
-
-    createRequest (market, params = {}) {
-        if (market['future']) {
-            return this.deepExtend ({
-                'symbol': market['lowercaseId'],
-                'contract_type': market['contractType'],
-            }, params);
-        }
-        return this.deepExtend ({
-            'symbol': market['id'],
-        }, params);
-    }
-
-    handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
-        if (response === undefined) {
-            return; // fallback to default error handler
-        }
-        const error = this.safeString2 (response, 'error_code', 'code');
-        if ((error !== undefined) && (error !== '0')) {
-            const message = this.id + ' ' + body;
-            this.throwExactlyMatchedException (this.exceptions, error, message);
-            throw new ExchangeError (message);
-        }
-        if ('result' in response) {
-            if (!response['result']) {
-                throw new ExchangeError (this.id + ' ' + body);
-            }
-        }
-    }
-};
diff --git a/WebServer/node_modules/ccxt/js/okex.js b/WebServer/node_modules/ccxt/js/okex.js
deleted file mode 100644
index d13a78f98..000000000
--- a/WebServer/node_modules/ccxt/js/okex.js
+++ /dev/null
@@ -1,65 +0,0 @@
-'use strict';
-
-// ---------------------------------------------------------------------------
-
-const okcoinusd = require ('./okcoinusd.js');
-
-// ---------------------------------------------------------------------------
-
-module.exports = class okex extends okcoinusd {
-    describe () {
-        return this.deepExtend (super.describe (), {
-            'id': 'okex',
-            'name': 'OKEX',
-            'countries': [ 'CN', 'US' ],
-            'has': {
-                'CORS': false,
-                'futures': true,
-                'fetchTickers': true,
-            },
-            'urls': {
-                'logo': 'https://user-images.githubusercontent.com/1294454/32552768-0d6dd3c6-c4a6-11e7-90f8-c043b64756a7.jpg',
-                'api': {
-                    'v3': 'https://www.okex.com/v3',
-                    'web': 'https://www.okex.com/v2',
-                    'public': 'https://www.okex.com/api',
-                    'private': 'https://www.okex.com/api',
-                },
-                'www': 'https://www.okex.com',
-                'doc': [
-                    'https://github.com/okcoin-okex/API-docs-OKEx.com',
-                    'https://www.okex.com/docs/en/',
-                ],
-                'fees': 'https://www.okex.com/pages/products/fees.html',
-                'referral': 'https://www.okex.com',
-            },
-            'fees': {
-                'trading': {
-                    'taker': 0.0015,
-                    'maker': 0.0010,
-                },
-                'spot': {
-                    'taker': 0.0015,
-                    'maker': 0.0010,
-                },
-                'future': {
-                    'taker': 0.0005,
-                    'maker': 0.0002,
-                },
-                'swap': {
-                    'taker': 0.00075,
-                    'maker': 0.0002,
-                },
-            },
-            'commonCurrencies': {
-                // OKEX refers to ERC20 version of Aeternity (AEToken)
-                'AE': 'AET', // https://github.com/ccxt/ccxt/issues/4981
-                'HOT': 'Hydro Protocol',
-                'HSR': 'HC',
-                'MAG': 'Maggie',
-                'YOYO': 'YOYOW',
-                'WIN': 'WinToken', // https://github.com/ccxt/ccxt/issues/5701
-            },
-        });
-    }
-};
diff --git a/WebServer/node_modules/dotenv/config.js b/WebServer/node_modules/dotenv/config.js
deleted file mode 100644
index c7e6447fc..000000000
--- a/WebServer/node_modules/dotenv/config.js
+++ /dev/null
@@ -1,11 +0,0 @@
-/* @flow */
-
-(function () {
-  require('./lib/main').config(
-    Object.assign(
-      {},
-      require('./lib/env-options'),
-      require('./lib/cli-options')(process.argv)
-    )
-  )
-})()
diff --git a/WebServer/node_modules/dotenv/lib/cli-options.js b/WebServer/node_modules/dotenv/lib/cli-options.js
deleted file mode 100644
index ad69fabd9..000000000
--- a/WebServer/node_modules/dotenv/lib/cli-options.js
+++ /dev/null
@@ -1,13 +0,0 @@
-/* @flow */
-
-const re = /^dotenv_config_(encoding|path|debug)=(.+)$/
-
-module.exports = function optionMatcher (args /*: Array<string> */) {
-  return args.reduce(function (acc, cur) {
-    const matches = cur.match(re)
-    if (matches) {
-      acc[matches[1]] = matches[2]
-    }
-    return acc
-  }, {})
-}
diff --git a/WebServer/node_modules/dotenv/lib/env-options.js b/WebServer/node_modules/dotenv/lib/env-options.js
deleted file mode 100644
index b4c4a6068..000000000
--- a/WebServer/node_modules/dotenv/lib/env-options.js
+++ /dev/null
@@ -1,18 +0,0 @@
-/* @flow */
-
-// ../config.js accepts options via environment variables
-const options = {}
-
-if (process.env.DOTENV_CONFIG_ENCODING != null) {
-  options.encoding = process.env.DOTENV_CONFIG_ENCODING
-}
-
-if (process.env.DOTENV_CONFIG_PATH != null) {
-  options.path = process.env.DOTENV_CONFIG_PATH
-}
-
-if (process.env.DOTENV_CONFIG_DEBUG != null) {
-  options.debug = process.env.DOTENV_CONFIG_DEBUG
-}
-
-module.exports = options
diff --git a/WebServer/node_modules/dotenv/lib/main.js b/WebServer/node_modules/dotenv/lib/main.js
deleted file mode 100644
index 38f36f310..000000000
--- a/WebServer/node_modules/dotenv/lib/main.js
+++ /dev/null
@@ -1,112 +0,0 @@
-/* @flow */
-/*::
-
-type DotenvParseOptions = {
-  debug?: boolean
-}
-
-// keys and values from src
-type DotenvParseOutput = { [string]: string }
-
-type DotenvConfigOptions = {
-  path?: string, // path to .env file
-  encoding?: string, // encoding of .env file
-  debug?: string // turn on logging for debugging purposes
-}
-
-type DotenvConfigOutput = {
-  parsed?: DotenvParseOutput,
-  error?: Error
-}
-
-*/
-
-const fs = require('fs')
-const path = require('path')
-
-function log (message /*: string */) {
-  console.log(`[dotenv][DEBUG] ${message}`)
-}
-
-const NEWLINE = '\n'
-const RE_INI_KEY_VAL = /^\s*([\w.-]+)\s*=\s*(.*)?\s*$/
-const RE_NEWLINES = /\\n/g
-
-// Parses src into an Object
-function parse (src /*: string | Buffer */, options /*: ?DotenvParseOptions */) /*: DotenvParseOutput */ {
-  const debug = Boolean(options && options.debug)
-  const obj = {}
-
-  // convert Buffers before splitting into lines and processing
-  src.toString().split(NEWLINE).forEach(function (line, idx) {
-    // matching "KEY' and 'VAL' in 'KEY=VAL'
-    const keyValueArr = line.match(RE_INI_KEY_VAL)
-    // matched?
-    if (keyValueArr != null) {
-      const key = keyValueArr[1]
-      // default undefined or missing values to empty string
-      let val = (keyValueArr[2] || '')
-      const end = val.length - 1
-      const isDoubleQuoted = val[0] === '"' && val[end] === '"'
-      const isSingleQuoted = val[0] === "'" && val[end] === "'"
-
-      // if single or double quoted, remove quotes
-      if (isSingleQuoted || isDoubleQuoted) {
-        val = val.substring(1, end)
-
-        // if double quoted, expand newlines
-        if (isDoubleQuoted) {
-          val = val.replace(RE_NEWLINES, NEWLINE)
-        }
-      } else {
-        // remove surrounding whitespace
-        val = val.trim()
-      }
-
-      obj[key] = val
-    } else if (debug) {
-      log(`did not match key and value when parsing line ${idx + 1}: ${line}`)
-    }
-  })
-
-  return obj
-}
-
-// Populates process.env from .env file
-function config (options /*: ?DotenvConfigOptions */) /*: DotenvConfigOutput */ {
-  let dotenvPath = path.resolve(process.cwd(), '.env')
-  let encoding /*: string */ = 'utf8'
-  let debug = false
-
-  if (options) {
-    if (options.path != null) {
-      dotenvPath = options.path
-    }
-    if (options.encoding != null) {
-      encoding = options.encoding
-    }
-    if (options.debug != null) {
-      debug = true
-    }
-  }
-
-  try {
-    // specifying an encoding returns a string instead of a buffer
-    const parsed = parse(fs.readFileSync(dotenvPath, { encoding }), { debug })
-
-    Object.keys(parsed).forEach(function (key) {
-      if (!process.env.hasOwnProperty(key)) {
-        process.env[key] = parsed[key]
-      } else if (debug) {
-        log(`"${key}" is already defined in \`process.env\` and will not be overwritten`)
-      }
-    })
-
-    return { parsed }
-  } catch (e) {
-    return { error: e }
-  }
-}
-
-module.exports.config = config
-module.exports.parse = parse
diff --git a/WebServer/node_modules/dotenv/package.json b/WebServer/node_modules/dotenv/package.json
deleted file mode 100644
index f68f52372..000000000
--- a/WebServer/node_modules/dotenv/package.json
+++ /dev/null
@@ -1,79 +0,0 @@
-{
-  "_args": [
-    [
-      "dotenv@8.0.0",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "dotenv@8.0.0",
-  "_id": "dotenv@8.0.0",
-  "_inBundle": false,
-  "_integrity": "sha512-30xVGqjLjiUOArT4+M5q9sYdvuR4riM6yK9wMcas9Vbp6zZa+ocC9dp6QoftuhTPhFAiLK/0C5Ni2nou/Bk8lg==",
-  "_location": "/dotenv",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "version",
-    "registry": true,
-    "raw": "dotenv@8.0.0",
-    "name": "dotenv",
-    "escapedName": "dotenv",
-    "rawSpec": "8.0.0",
-    "saveSpec": null,
-    "fetchSpec": "8.0.0"
-  },
-  "_requiredBy": [
-    "/"
-  ],
-  "_resolved": "https://registry.npmjs.org/dotenv/-/dotenv-8.0.0.tgz",
-  "_spec": "8.0.0",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
-  "bugs": {
-    "url": "https://github.com/motdotla/dotenv/issues"
-  },
-  "dependencies": {},
-  "description": "Loads environment variables from .env file",
-  "devDependencies": {
-    "decache": "^4.5.1",
-    "flow-bin": "^0.98.0",
-    "sinon": "^7.3.2",
-    "standard": "^12.0.1",
-    "standard-markdown": "^5.0.1",
-    "standard-version": "^5.0.2",
-    "tap": "^13.1.2"
-  },
-  "engines": {
-    "node": ">=8"
-  },
-  "homepage": "https://github.com/motdotla/dotenv#readme",
-  "keywords": [
-    "dotenv",
-    "env",
-    ".env",
-    "environment",
-    "variables",
-    "config",
-    "settings"
-  ],
-  "license": "BSD-2-Clause",
-  "main": "lib/main.js",
-  "name": "dotenv",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/motdotla/dotenv.git"
-  },
-  "scripts": {
-    "flow": "flow",
-    "lint": "standard",
-    "postlint": "standard-markdown",
-    "prerelease": "npm test",
-    "pretest": "npm run lint",
-    "release": "standard-version",
-    "test": "tap tests/*.js --100"
-  },
-  "standard": {
-    "ignore": [
-      "flow-typed/"
-    ]
-  },
-  "version": "8.0.0"
-}
diff --git a/WebServer/node_modules/follow-redirects/http.js b/WebServer/node_modules/follow-redirects/http.js
deleted file mode 100644
index 695e35617..000000000
--- a/WebServer/node_modules/follow-redirects/http.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = require("./").http;
diff --git a/WebServer/node_modules/follow-redirects/https.js b/WebServer/node_modules/follow-redirects/https.js
deleted file mode 100644
index d21c921d9..000000000
--- a/WebServer/node_modules/follow-redirects/https.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = require("./").https;
diff --git a/WebServer/node_modules/follow-redirects/index.js b/WebServer/node_modules/follow-redirects/index.js
deleted file mode 100644
index 4d7297a3a..000000000
--- a/WebServer/node_modules/follow-redirects/index.js
+++ /dev/null
@@ -1,322 +0,0 @@
-var url = require("url");
-var http = require("http");
-var https = require("https");
-var assert = require("assert");
-var Writable = require("stream").Writable;
-var debug = require("debug")("follow-redirects");
-
-// RFC7231§4.2.1: Of the request methods defined by this specification,
-// the GET, HEAD, OPTIONS, and TRACE methods are defined to be safe.
-var SAFE_METHODS = { GET: true, HEAD: true, OPTIONS: true, TRACE: true };
-
-// Create handlers that pass events from native requests
-var eventHandlers = Object.create(null);
-["abort", "aborted", "error", "socket", "timeout"].forEach(function (event) {
-  eventHandlers[event] = function (arg) {
-    this._redirectable.emit(event, arg);
-  };
-});
-
-// An HTTP(S) request that can be redirected
-function RedirectableRequest(options, responseCallback) {
-  // Initialize the request
-  Writable.call(this);
-  options.headers = options.headers || {};
-  this._options = options;
-  this._redirectCount = 0;
-  this._redirects = [];
-  this._requestBodyLength = 0;
-  this._requestBodyBuffers = [];
-
-  // Since http.request treats host as an alias of hostname,
-  // but the url module interprets host as hostname plus port,
-  // eliminate the host property to avoid confusion.
-  if (options.host) {
-    // Use hostname if set, because it has precedence
-    if (!options.hostname) {
-      options.hostname = options.host;
-    }
-    delete options.host;
-  }
-
-  // Attach a callback if passed
-  if (responseCallback) {
-    this.on("response", responseCallback);
-  }
-
-  // React to responses of native requests
-  var self = this;
-  this._onNativeResponse = function (response) {
-    self._processResponse(response);
-  };
-
-  // Complete the URL object when necessary
-  if (!options.pathname && options.path) {
-    var searchPos = options.path.indexOf("?");
-    if (searchPos < 0) {
-      options.pathname = options.path;
-    }
-    else {
-      options.pathname = options.path.substring(0, searchPos);
-      options.search = options.path.substring(searchPos);
-    }
-  }
-
-  // Perform the first request
-  this._performRequest();
-}
-RedirectableRequest.prototype = Object.create(Writable.prototype);
-
-// Writes buffered data to the current native request
-RedirectableRequest.prototype.write = function (data, encoding, callback) {
-  // Validate input and shift parameters if necessary
-  if (!(typeof data === "string" || typeof data === "object" && ("length" in data))) {
-    throw new Error("data should be a string, Buffer or Uint8Array");
-  }
-  if (typeof encoding === "function") {
-    callback = encoding;
-    encoding = null;
-  }
-
-  // Ignore empty buffers, since writing them doesn't invoke the callback
-  // https://github.com/nodejs/node/issues/22066
-  if (data.length === 0) {
-    if (callback) {
-      callback();
-    }
-    return;
-  }
-  // Only write when we don't exceed the maximum body length
-  if (this._requestBodyLength + data.length <= this._options.maxBodyLength) {
-    this._requestBodyLength += data.length;
-    this._requestBodyBuffers.push({ data: data, encoding: encoding });
-    this._currentRequest.write(data, encoding, callback);
-  }
-  // Error when we exceed the maximum body length
-  else {
-    this.emit("error", new Error("Request body larger than maxBodyLength limit"));
-    this.abort();
-  }
-};
-
-// Ends the current native request
-RedirectableRequest.prototype.end = function (data, encoding, callback) {
-  // Shift parameters if necessary
-  if (typeof data === "function") {
-    callback = data;
-    data = encoding = null;
-  }
-  else if (typeof encoding === "function") {
-    callback = encoding;
-    encoding = null;
-  }
-
-  // Write data and end
-  var currentRequest = this._currentRequest;
-  this.write(data || "", encoding, function () {
-    currentRequest.end(null, null, callback);
-  });
-};
-
-// Sets a header value on the current native request
-RedirectableRequest.prototype.setHeader = function (name, value) {
-  this._options.headers[name] = value;
-  this._currentRequest.setHeader(name, value);
-};
-
-// Clears a header value on the current native request
-RedirectableRequest.prototype.removeHeader = function (name) {
-  delete this._options.headers[name];
-  this._currentRequest.removeHeader(name);
-};
-
-// Proxy all other public ClientRequest methods
-[
-  "abort", "flushHeaders", "getHeader",
-  "setNoDelay", "setSocketKeepAlive", "setTimeout",
-].forEach(function (method) {
-  RedirectableRequest.prototype[method] = function (a, b) {
-    return this._currentRequest[method](a, b);
-  };
-});
-
-// Proxy all public ClientRequest properties
-["aborted", "connection", "socket"].forEach(function (property) {
-  Object.defineProperty(RedirectableRequest.prototype, property, {
-    get: function () { return this._currentRequest[property]; },
-  });
-});
-
-// Executes the next native request (initial or redirect)
-RedirectableRequest.prototype._performRequest = function () {
-  // Load the native protocol
-  var protocol = this._options.protocol;
-  var nativeProtocol = this._options.nativeProtocols[protocol];
-  if (!nativeProtocol) {
-    this.emit("error", new Error("Unsupported protocol " + protocol));
-    return;
-  }
-
-  // If specified, use the agent corresponding to the protocol
-  // (HTTP and HTTPS use different types of agents)
-  if (this._options.agents) {
-    var scheme = protocol.substr(0, protocol.length - 1);
-    this._options.agent = this._options.agents[scheme];
-  }
-
-  // Create the native request
-  var request = this._currentRequest =
-        nativeProtocol.request(this._options, this._onNativeResponse);
-  this._currentUrl = url.format(this._options);
-
-  // Set up event handlers
-  request._redirectable = this;
-  for (var event in eventHandlers) {
-    /* istanbul ignore else */
-    if (event) {
-      request.on(event, eventHandlers[event]);
-    }
-  }
-
-  // End a redirected request
-  // (The first request must be ended explicitly with RedirectableRequest#end)
-  if (this._isRedirect) {
-    // Write the request entity and end.
-    var i = 0;
-    var buffers = this._requestBodyBuffers;
-    (function writeNext() {
-      if (i < buffers.length) {
-        var buffer = buffers[i++];
-        request.write(buffer.data, buffer.encoding, writeNext);
-      }
-      else {
-        request.end();
-      }
-    }());
-  }
-};
-
-// Processes a response from the current native request
-RedirectableRequest.prototype._processResponse = function (response) {
-  // Store the redirected response
-  if (this._options.trackRedirects) {
-    this._redirects.push({
-      url: this._currentUrl,
-      headers: response.headers,
-      statusCode: response.statusCode,
-    });
-  }
-
-  // RFC7231§6.4: The 3xx (Redirection) class of status code indicates
-  // that further action needs to be taken by the user agent in order to
-  // fulfill the request. If a Location header field is provided,
-  // the user agent MAY automatically redirect its request to the URI
-  // referenced by the Location field value,
-  // even if the specific status code is not understood.
-  var location = response.headers.location;
-  if (location && this._options.followRedirects !== false &&
-      response.statusCode >= 300 && response.statusCode < 400) {
-    // RFC7231§6.4: A client SHOULD detect and intervene
-    // in cyclical redirections (i.e., "infinite" redirection loops).
-    if (++this._redirectCount > this._options.maxRedirects) {
-      this.emit("error", new Error("Max redirects exceeded."));
-      return;
-    }
-
-    // RFC7231§6.4: Automatic redirection needs to done with
-    // care for methods not known to be safe […],
-    // since the user might not wish to redirect an unsafe request.
-    // RFC7231§6.4.7: The 307 (Temporary Redirect) status code indicates
-    // that the target resource resides temporarily under a different URI
-    // and the user agent MUST NOT change the request method
-    // if it performs an automatic redirection to that URI.
-    var header;
-    var headers = this._options.headers;
-    if (response.statusCode !== 307 && !(this._options.method in SAFE_METHODS)) {
-      this._options.method = "GET";
-      // Drop a possible entity and headers related to it
-      this._requestBodyBuffers = [];
-      for (header in headers) {
-        if (/^content-/i.test(header)) {
-          delete headers[header];
-        }
-      }
-    }
-
-    // Drop the Host header, as the redirect might lead to a different host
-    if (!this._isRedirect) {
-      for (header in headers) {
-        if (/^host$/i.test(header)) {
-          delete headers[header];
-        }
-      }
-    }
-
-    // Perform the redirected request
-    var redirectUrl = url.resolve(this._currentUrl, location);
-    debug("redirecting to", redirectUrl);
-    Object.assign(this._options, url.parse(redirectUrl));
-    this._isRedirect = true;
-    this._performRequest();
-
-    // Discard the remainder of the response to avoid waiting for data
-    response.destroy();
-  }
-  else {
-    // The response is not a redirect; return it as-is
-    response.responseUrl = this._currentUrl;
-    response.redirects = this._redirects;
-    this.emit("response", response);
-
-    // Clean up
-    this._requestBodyBuffers = [];
-  }
-};
-
-// Wraps the key/value object of protocols with redirect functionality
-function wrap(protocols) {
-  // Default settings
-  var exports = {
-    maxRedirects: 21,
-    maxBodyLength: 10 * 1024 * 1024,
-  };
-
-  // Wrap each protocol
-  var nativeProtocols = {};
-  Object.keys(protocols).forEach(function (scheme) {
-    var protocol = scheme + ":";
-    var nativeProtocol = nativeProtocols[protocol] = protocols[scheme];
-    var wrappedProtocol = exports[scheme] = Object.create(nativeProtocol);
-
-    // Executes a request, following redirects
-    wrappedProtocol.request = function (options, callback) {
-      if (typeof options === "string") {
-        options = url.parse(options);
-        options.maxRedirects = exports.maxRedirects;
-      }
-      else {
-        options = Object.assign({
-          protocol: protocol,
-          maxRedirects: exports.maxRedirects,
-          maxBodyLength: exports.maxBodyLength,
-        }, options);
-      }
-      options.nativeProtocols = nativeProtocols;
-      assert.equal(options.protocol, protocol, "protocol mismatch");
-      debug("options", options);
-      return new RedirectableRequest(options, callback);
-    };
-
-    // Executes a GET request, following redirects
-    wrappedProtocol.get = function (options, callback) {
-      var request = wrappedProtocol.request(options, callback);
-      request.end();
-      return request;
-    };
-  });
-  return exports;
-}
-
-// Exports
-module.exports = wrap({ http: http, https: https });
-module.exports.wrap = wrap;
diff --git a/WebServer/node_modules/follow-redirects/node_modules/debug/karma.conf.js b/WebServer/node_modules/follow-redirects/node_modules/debug/karma.conf.js
deleted file mode 100644
index 103a82d15..000000000
--- a/WebServer/node_modules/follow-redirects/node_modules/debug/karma.conf.js
+++ /dev/null
@@ -1,70 +0,0 @@
-// Karma configuration
-// Generated on Fri Dec 16 2016 13:09:51 GMT+0000 (UTC)
-
-module.exports = function(config) {
-  config.set({
-
-    // base path that will be used to resolve all patterns (eg. files, exclude)
-    basePath: '',
-
-
-    // frameworks to use
-    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
-    frameworks: ['mocha', 'chai', 'sinon'],
-
-
-    // list of files / patterns to load in the browser
-    files: [
-      'dist/debug.js',
-      'test/*spec.js'
-    ],
-
-
-    // list of files to exclude
-    exclude: [
-      'src/node.js'
-    ],
-
-
-    // preprocess matching files before serving them to the browser
-    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
-    preprocessors: {
-    },
-
-    // test results reporter to use
-    // possible values: 'dots', 'progress'
-    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
-    reporters: ['progress'],
-
-
-    // web server port
-    port: 9876,
-
-
-    // enable / disable colors in the output (reporters and logs)
-    colors: true,
-
-
-    // level of logging
-    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
-    logLevel: config.LOG_INFO,
-
-
-    // enable / disable watching file and executing tests whenever any file changes
-    autoWatch: true,
-
-
-    // start these browsers
-    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
-    browsers: ['PhantomJS'],
-
-
-    // Continuous Integration mode
-    // if true, Karma captures browsers, runs the tests and exits
-    singleRun: false,
-
-    // Concurrency level
-    // how many browser should be started simultaneous
-    concurrency: Infinity
-  })
-}
diff --git a/WebServer/node_modules/follow-redirects/node_modules/debug/node.js b/WebServer/node_modules/follow-redirects/node_modules/debug/node.js
deleted file mode 100644
index 7fc36fe6d..000000000
--- a/WebServer/node_modules/follow-redirects/node_modules/debug/node.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = require('./src/node');
diff --git a/WebServer/node_modules/follow-redirects/node_modules/debug/package.json b/WebServer/node_modules/follow-redirects/node_modules/debug/package.json
deleted file mode 100644
index 086d1fe9f..000000000
--- a/WebServer/node_modules/follow-redirects/node_modules/debug/package.json
+++ /dev/null
@@ -1,85 +0,0 @@
-{
-  "_args": [
-    [
-      "debug@3.1.0",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "debug@3.1.0",
-  "_id": "debug@3.1.0",
-  "_inBundle": false,
-  "_integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
-  "_location": "/follow-redirects/debug",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "version",
-    "registry": true,
-    "raw": "debug@3.1.0",
-    "name": "debug",
-    "escapedName": "debug",
-    "rawSpec": "3.1.0",
-    "saveSpec": null,
-    "fetchSpec": "3.1.0"
-  },
-  "_requiredBy": [
-    "/follow-redirects"
-  ],
-  "_resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-  "_spec": "3.1.0",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
-  "author": {
-    "name": "TJ Holowaychuk",
-    "email": "tj@vision-media.ca"
-  },
-  "browser": "./src/browser.js",
-  "bugs": {
-    "url": "https://github.com/visionmedia/debug/issues"
-  },
-  "contributors": [
-    {
-      "name": "Nathan Rajlich",
-      "email": "nathan@tootallnate.net",
-      "url": "http://n8.io"
-    },
-    {
-      "name": "Andrew Rhyne",
-      "email": "rhyneandrew@gmail.com"
-    }
-  ],
-  "dependencies": {
-    "ms": "2.0.0"
-  },
-  "description": "small debugging utility",
-  "devDependencies": {
-    "browserify": "14.4.0",
-    "chai": "^3.5.0",
-    "concurrently": "^3.1.0",
-    "coveralls": "^2.11.15",
-    "eslint": "^3.12.1",
-    "istanbul": "^0.4.5",
-    "karma": "^1.3.0",
-    "karma-chai": "^0.1.0",
-    "karma-mocha": "^1.3.0",
-    "karma-phantomjs-launcher": "^1.0.2",
-    "karma-sinon": "^1.0.5",
-    "mocha": "^3.2.0",
-    "mocha-lcov-reporter": "^1.2.0",
-    "rimraf": "^2.5.4",
-    "sinon": "^1.17.6",
-    "sinon-chai": "^2.8.0"
-  },
-  "homepage": "https://github.com/visionmedia/debug#readme",
-  "keywords": [
-    "debug",
-    "log",
-    "debugger"
-  ],
-  "license": "MIT",
-  "main": "./src/index.js",
-  "name": "debug",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/visionmedia/debug.git"
-  },
-  "version": "3.1.0"
-}
diff --git a/WebServer/node_modules/follow-redirects/node_modules/debug/src/browser.js b/WebServer/node_modules/follow-redirects/node_modules/debug/src/browser.js
deleted file mode 100644
index f5149ff52..000000000
--- a/WebServer/node_modules/follow-redirects/node_modules/debug/src/browser.js
+++ /dev/null
@@ -1,195 +0,0 @@
-/**
- * This is the web browser implementation of `debug()`.
- *
- * Expose `debug()` as the module.
- */
-
-exports = module.exports = require('./debug');
-exports.log = log;
-exports.formatArgs = formatArgs;
-exports.save = save;
-exports.load = load;
-exports.useColors = useColors;
-exports.storage = 'undefined' != typeof chrome
-               && 'undefined' != typeof chrome.storage
-                  ? chrome.storage.local
-                  : localstorage();
-
-/**
- * Colors.
- */
-
-exports.colors = [
-  '#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC',
-  '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF',
-  '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC',
-  '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF',
-  '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC',
-  '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033',
-  '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366',
-  '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933',
-  '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC',
-  '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF',
-  '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'
-];
-
-/**
- * Currently only WebKit-based Web Inspectors, Firefox >= v31,
- * and the Firebug extension (any Firefox version) are known
- * to support "%c" CSS customizations.
- *
- * TODO: add a `localStorage` variable to explicitly enable/disable colors
- */
-
-function useColors() {
-  // NB: In an Electron preload script, document will be defined but not fully
-  // initialized. Since we know we're in Chrome, we'll just detect this case
-  // explicitly
-  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
-    return true;
-  }
-
-  // Internet Explorer and Edge do not support colors.
-  if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
-    return false;
-  }
-
-  // is webkit? http://stackoverflow.com/a/16459606/376773
-  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
-  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
-    // is firebug? http://stackoverflow.com/a/398120/376773
-    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
-    // is firefox >= v31?
-    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
-    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
-    // double check webkit in userAgent just in case we are in a worker
-    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
-}
-
-/**
- * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
- */
-
-exports.formatters.j = function(v) {
-  try {
-    return JSON.stringify(v);
-  } catch (err) {
-    return '[UnexpectedJSONParseError]: ' + err.message;
-  }
-};
-
-
-/**
- * Colorize log arguments if enabled.
- *
- * @api public
- */
-
-function formatArgs(args) {
-  var useColors = this.useColors;
-
-  args[0] = (useColors ? '%c' : '')
-    + this.namespace
-    + (useColors ? ' %c' : ' ')
-    + args[0]
-    + (useColors ? '%c ' : ' ')
-    + '+' + exports.humanize(this.diff);
-
-  if (!useColors) return;
-
-  var c = 'color: ' + this.color;
-  args.splice(1, 0, c, 'color: inherit')
-
-  // the final "%c" is somewhat tricky, because there could be other
-  // arguments passed either before or after the %c, so we need to
-  // figure out the correct index to insert the CSS into
-  var index = 0;
-  var lastC = 0;
-  args[0].replace(/%[a-zA-Z%]/g, function(match) {
-    if ('%%' === match) return;
-    index++;
-    if ('%c' === match) {
-      // we only are interested in the *last* %c
-      // (the user may have provided their own)
-      lastC = index;
-    }
-  });
-
-  args.splice(lastC, 0, c);
-}
-
-/**
- * Invokes `console.log()` when available.
- * No-op when `console.log` is not a "function".
- *
- * @api public
- */
-
-function log() {
-  // this hackery is required for IE8/9, where
-  // the `console.log` function doesn't have 'apply'
-  return 'object' === typeof console
-    && console.log
-    && Function.prototype.apply.call(console.log, console, arguments);
-}
-
-/**
- * Save `namespaces`.
- *
- * @param {String} namespaces
- * @api private
- */
-
-function save(namespaces) {
-  try {
-    if (null == namespaces) {
-      exports.storage.removeItem('debug');
-    } else {
-      exports.storage.debug = namespaces;
-    }
-  } catch(e) {}
-}
-
-/**
- * Load `namespaces`.
- *
- * @return {String} returns the previously persisted debug modes
- * @api private
- */
-
-function load() {
-  var r;
-  try {
-    r = exports.storage.debug;
-  } catch(e) {}
-
-  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
-  if (!r && typeof process !== 'undefined' && 'env' in process) {
-    r = process.env.DEBUG;
-  }
-
-  return r;
-}
-
-/**
- * Enable namespaces listed in `localStorage.debug` initially.
- */
-
-exports.enable(load());
-
-/**
- * Localstorage attempts to return the localstorage.
- *
- * This is necessary because safari throws
- * when a user disables cookies/localstorage
- * and you attempt to access it.
- *
- * @return {LocalStorage}
- * @api private
- */
-
-function localstorage() {
-  try {
-    return window.localStorage;
-  } catch (e) {}
-}
diff --git a/WebServer/node_modules/follow-redirects/node_modules/debug/src/debug.js b/WebServer/node_modules/follow-redirects/node_modules/debug/src/debug.js
deleted file mode 100644
index 77e6384a3..000000000
--- a/WebServer/node_modules/follow-redirects/node_modules/debug/src/debug.js
+++ /dev/null
@@ -1,225 +0,0 @@
-
-/**
- * This is the common logic for both the Node.js and web browser
- * implementations of `debug()`.
- *
- * Expose `debug()` as the module.
- */
-
-exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
-exports.coerce = coerce;
-exports.disable = disable;
-exports.enable = enable;
-exports.enabled = enabled;
-exports.humanize = require('ms');
-
-/**
- * Active `debug` instances.
- */
-exports.instances = [];
-
-/**
- * The currently active debug mode names, and names to skip.
- */
-
-exports.names = [];
-exports.skips = [];
-
-/**
- * Map of special "%n" handling functions, for the debug "format" argument.
- *
- * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
- */
-
-exports.formatters = {};
-
-/**
- * Select a color.
- * @param {String} namespace
- * @return {Number}
- * @api private
- */
-
-function selectColor(namespace) {
-  var hash = 0, i;
-
-  for (i in namespace) {
-    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);
-    hash |= 0; // Convert to 32bit integer
-  }
-
-  return exports.colors[Math.abs(hash) % exports.colors.length];
-}
-
-/**
- * Create a debugger with the given `namespace`.
- *
- * @param {String} namespace
- * @return {Function}
- * @api public
- */
-
-function createDebug(namespace) {
-
-  var prevTime;
-
-  function debug() {
-    // disabled?
-    if (!debug.enabled) return;
-
-    var self = debug;
-
-    // set `diff` timestamp
-    var curr = +new Date();
-    var ms = curr - (prevTime || curr);
-    self.diff = ms;
-    self.prev = prevTime;
-    self.curr = curr;
-    prevTime = curr;
-
-    // turn the `arguments` into a proper Array
-    var args = new Array(arguments.length);
-    for (var i = 0; i < args.length; i++) {
-      args[i] = arguments[i];
-    }
-
-    args[0] = exports.coerce(args[0]);
-
-    if ('string' !== typeof args[0]) {
-      // anything else let's inspect with %O
-      args.unshift('%O');
-    }
-
-    // apply any `formatters` transformations
-    var index = 0;
-    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
-      // if we encounter an escaped % then don't increase the array index
-      if (match === '%%') return match;
-      index++;
-      var formatter = exports.formatters[format];
-      if ('function' === typeof formatter) {
-        var val = args[index];
-        match = formatter.call(self, val);
-
-        // now we need to remove `args[index]` since it's inlined in the `format`
-        args.splice(index, 1);
-        index--;
-      }
-      return match;
-    });
-
-    // apply env-specific formatting (colors, etc.)
-    exports.formatArgs.call(self, args);
-
-    var logFn = debug.log || exports.log || console.log.bind(console);
-    logFn.apply(self, args);
-  }
-
-  debug.namespace = namespace;
-  debug.enabled = exports.enabled(namespace);
-  debug.useColors = exports.useColors();
-  debug.color = selectColor(namespace);
-  debug.destroy = destroy;
-
-  // env-specific initialization logic for debug instances
-  if ('function' === typeof exports.init) {
-    exports.init(debug);
-  }
-
-  exports.instances.push(debug);
-
-  return debug;
-}
-
-function destroy () {
-  var index = exports.instances.indexOf(this);
-  if (index !== -1) {
-    exports.instances.splice(index, 1);
-    return true;
-  } else {
-    return false;
-  }
-}
-
-/**
- * Enables a debug mode by namespaces. This can include modes
- * separated by a colon and wildcards.
- *
- * @param {String} namespaces
- * @api public
- */
-
-function enable(namespaces) {
-  exports.save(namespaces);
-
-  exports.names = [];
-  exports.skips = [];
-
-  var i;
-  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
-  var len = split.length;
-
-  for (i = 0; i < len; i++) {
-    if (!split[i]) continue; // ignore empty strings
-    namespaces = split[i].replace(/\*/g, '.*?');
-    if (namespaces[0] === '-') {
-      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
-    } else {
-      exports.names.push(new RegExp('^' + namespaces + '$'));
-    }
-  }
-
-  for (i = 0; i < exports.instances.length; i++) {
-    var instance = exports.instances[i];
-    instance.enabled = exports.enabled(instance.namespace);
-  }
-}
-
-/**
- * Disable debug output.
- *
- * @api public
- */
-
-function disable() {
-  exports.enable('');
-}
-
-/**
- * Returns true if the given mode name is enabled, false otherwise.
- *
- * @param {String} name
- * @return {Boolean}
- * @api public
- */
-
-function enabled(name) {
-  if (name[name.length - 1] === '*') {
-    return true;
-  }
-  var i, len;
-  for (i = 0, len = exports.skips.length; i < len; i++) {
-    if (exports.skips[i].test(name)) {
-      return false;
-    }
-  }
-  for (i = 0, len = exports.names.length; i < len; i++) {
-    if (exports.names[i].test(name)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-/**
- * Coerce `val`.
- *
- * @param {Mixed} val
- * @return {Mixed}
- * @api private
- */
-
-function coerce(val) {
-  if (val instanceof Error) return val.stack || val.message;
-  return val;
-}
diff --git a/WebServer/node_modules/follow-redirects/node_modules/debug/src/index.js b/WebServer/node_modules/follow-redirects/node_modules/debug/src/index.js
deleted file mode 100644
index cabcbcda1..000000000
--- a/WebServer/node_modules/follow-redirects/node_modules/debug/src/index.js
+++ /dev/null
@@ -1,10 +0,0 @@
-/**
- * Detect Electron renderer process, which is node, but we should
- * treat as a browser.
- */
-
-if (typeof process === 'undefined' || process.type === 'renderer') {
-  module.exports = require('./browser.js');
-} else {
-  module.exports = require('./node.js');
-}
diff --git a/WebServer/node_modules/follow-redirects/node_modules/debug/src/node.js b/WebServer/node_modules/follow-redirects/node_modules/debug/src/node.js
deleted file mode 100644
index d666fb9c0..000000000
--- a/WebServer/node_modules/follow-redirects/node_modules/debug/src/node.js
+++ /dev/null
@@ -1,186 +0,0 @@
-/**
- * Module dependencies.
- */
-
-var tty = require('tty');
-var util = require('util');
-
-/**
- * This is the Node.js implementation of `debug()`.
- *
- * Expose `debug()` as the module.
- */
-
-exports = module.exports = require('./debug');
-exports.init = init;
-exports.log = log;
-exports.formatArgs = formatArgs;
-exports.save = save;
-exports.load = load;
-exports.useColors = useColors;
-
-/**
- * Colors.
- */
-
-exports.colors = [ 6, 2, 3, 4, 5, 1 ];
-
-try {
-  var supportsColor = require('supports-color');
-  if (supportsColor && supportsColor.level >= 2) {
-    exports.colors = [
-      20, 21, 26, 27, 32, 33, 38, 39, 40, 41, 42, 43, 44, 45, 56, 57, 62, 63, 68,
-      69, 74, 75, 76, 77, 78, 79, 80, 81, 92, 93, 98, 99, 112, 113, 128, 129, 134,
-      135, 148, 149, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171,
-      172, 173, 178, 179, 184, 185, 196, 197, 198, 199, 200, 201, 202, 203, 204,
-      205, 206, 207, 208, 209, 214, 215, 220, 221
-    ];
-  }
-} catch (err) {
-  // swallow - we only care if `supports-color` is available; it doesn't have to be.
-}
-
-/**
- * Build up the default `inspectOpts` object from the environment variables.
- *
- *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
- */
-
-exports.inspectOpts = Object.keys(process.env).filter(function (key) {
-  return /^debug_/i.test(key);
-}).reduce(function (obj, key) {
-  // camel-case
-  var prop = key
-    .substring(6)
-    .toLowerCase()
-    .replace(/_([a-z])/g, function (_, k) { return k.toUpperCase() });
-
-  // coerce string value into JS value
-  var val = process.env[key];
-  if (/^(yes|on|true|enabled)$/i.test(val)) val = true;
-  else if (/^(no|off|false|disabled)$/i.test(val)) val = false;
-  else if (val === 'null') val = null;
-  else val = Number(val);
-
-  obj[prop] = val;
-  return obj;
-}, {});
-
-/**
- * Is stdout a TTY? Colored output is enabled when `true`.
- */
-
-function useColors() {
-  return 'colors' in exports.inspectOpts
-    ? Boolean(exports.inspectOpts.colors)
-    : tty.isatty(process.stderr.fd);
-}
-
-/**
- * Map %o to `util.inspect()`, all on a single line.
- */
-
-exports.formatters.o = function(v) {
-  this.inspectOpts.colors = this.useColors;
-  return util.inspect(v, this.inspectOpts)
-    .split('\n').map(function(str) {
-      return str.trim()
-    }).join(' ');
-};
-
-/**
- * Map %o to `util.inspect()`, allowing multiple lines if needed.
- */
-
-exports.formatters.O = function(v) {
-  this.inspectOpts.colors = this.useColors;
-  return util.inspect(v, this.inspectOpts);
-};
-
-/**
- * Adds ANSI color escape codes if enabled.
- *
- * @api public
- */
-
-function formatArgs(args) {
-  var name = this.namespace;
-  var useColors = this.useColors;
-
-  if (useColors) {
-    var c = this.color;
-    var colorCode = '\u001b[3' + (c < 8 ? c : '8;5;' + c);
-    var prefix = '  ' + colorCode + ';1m' + name + ' ' + '\u001b[0m';
-
-    args[0] = prefix + args[0].split('\n').join('\n' + prefix);
-    args.push(colorCode + 'm+' + exports.humanize(this.diff) + '\u001b[0m');
-  } else {
-    args[0] = getDate() + name + ' ' + args[0];
-  }
-}
-
-function getDate() {
-  if (exports.inspectOpts.hideDate) {
-    return '';
-  } else {
-    return new Date().toISOString() + ' ';
-  }
-}
-
-/**
- * Invokes `util.format()` with the specified arguments and writes to stderr.
- */
-
-function log() {
-  return process.stderr.write(util.format.apply(util, arguments) + '\n');
-}
-
-/**
- * Save `namespaces`.
- *
- * @param {String} namespaces
- * @api private
- */
-
-function save(namespaces) {
-  if (null == namespaces) {
-    // If you set a process.env field to null or undefined, it gets cast to the
-    // string 'null' or 'undefined'. Just delete instead.
-    delete process.env.DEBUG;
-  } else {
-    process.env.DEBUG = namespaces;
-  }
-}
-
-/**
- * Load `namespaces`.
- *
- * @return {String} returns the previously persisted debug modes
- * @api private
- */
-
-function load() {
-  return process.env.DEBUG;
-}
-
-/**
- * Init logic for `debug` instances.
- *
- * Create a new `inspectOpts` object in case `useColors` is set
- * differently for a particular `debug` instance.
- */
-
-function init (debug) {
-  debug.inspectOpts = {};
-
-  var keys = Object.keys(exports.inspectOpts);
-  for (var i = 0; i < keys.length; i++) {
-    debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
-  }
-}
-
-/**
- * Enable namespaces listed in `process.env.DEBUG` initially.
- */
-
-exports.enable(load());
diff --git a/WebServer/node_modules/follow-redirects/node_modules/ms/index.js b/WebServer/node_modules/follow-redirects/node_modules/ms/index.js
deleted file mode 100644
index 6a522b16b..000000000
--- a/WebServer/node_modules/follow-redirects/node_modules/ms/index.js
+++ /dev/null
@@ -1,152 +0,0 @@
-/**
- * Helpers.
- */
-
-var s = 1000;
-var m = s * 60;
-var h = m * 60;
-var d = h * 24;
-var y = d * 365.25;
-
-/**
- * Parse or format the given `val`.
- *
- * Options:
- *
- *  - `long` verbose formatting [false]
- *
- * @param {String|Number} val
- * @param {Object} [options]
- * @throws {Error} throw an error if val is not a non-empty string or a number
- * @return {String|Number}
- * @api public
- */
-
-module.exports = function(val, options) {
-  options = options || {};
-  var type = typeof val;
-  if (type === 'string' && val.length > 0) {
-    return parse(val);
-  } else if (type === 'number' && isNaN(val) === false) {
-    return options.long ? fmtLong(val) : fmtShort(val);
-  }
-  throw new Error(
-    'val is not a non-empty string or a valid number. val=' +
-      JSON.stringify(val)
-  );
-};
-
-/**
- * Parse the given `str` and return milliseconds.
- *
- * @param {String} str
- * @return {Number}
- * @api private
- */
-
-function parse(str) {
-  str = String(str);
-  if (str.length > 100) {
-    return;
-  }
-  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(
-    str
-  );
-  if (!match) {
-    return;
-  }
-  var n = parseFloat(match[1]);
-  var type = (match[2] || 'ms').toLowerCase();
-  switch (type) {
-    case 'years':
-    case 'year':
-    case 'yrs':
-    case 'yr':
-    case 'y':
-      return n * y;
-    case 'days':
-    case 'day':
-    case 'd':
-      return n * d;
-    case 'hours':
-    case 'hour':
-    case 'hrs':
-    case 'hr':
-    case 'h':
-      return n * h;
-    case 'minutes':
-    case 'minute':
-    case 'mins':
-    case 'min':
-    case 'm':
-      return n * m;
-    case 'seconds':
-    case 'second':
-    case 'secs':
-    case 'sec':
-    case 's':
-      return n * s;
-    case 'milliseconds':
-    case 'millisecond':
-    case 'msecs':
-    case 'msec':
-    case 'ms':
-      return n;
-    default:
-      return undefined;
-  }
-}
-
-/**
- * Short format for `ms`.
- *
- * @param {Number} ms
- * @return {String}
- * @api private
- */
-
-function fmtShort(ms) {
-  if (ms >= d) {
-    return Math.round(ms / d) + 'd';
-  }
-  if (ms >= h) {
-    return Math.round(ms / h) + 'h';
-  }
-  if (ms >= m) {
-    return Math.round(ms / m) + 'm';
-  }
-  if (ms >= s) {
-    return Math.round(ms / s) + 's';
-  }
-  return ms + 'ms';
-}
-
-/**
- * Long format for `ms`.
- *
- * @param {Number} ms
- * @return {String}
- * @api private
- */
-
-function fmtLong(ms) {
-  return plural(ms, d, 'day') ||
-    plural(ms, h, 'hour') ||
-    plural(ms, m, 'minute') ||
-    plural(ms, s, 'second') ||
-    ms + ' ms';
-}
-
-/**
- * Pluralization helper.
- */
-
-function plural(ms, n, name) {
-  if (ms < n) {
-    return;
-  }
-  if (ms < n * 1.5) {
-    return Math.floor(ms / n) + ' ' + name;
-  }
-  return Math.ceil(ms / n) + ' ' + name + 's';
-}
diff --git a/WebServer/node_modules/follow-redirects/node_modules/ms/package.json b/WebServer/node_modules/follow-redirects/node_modules/ms/package.json
deleted file mode 100644
index 291b2e74c..000000000
--- a/WebServer/node_modules/follow-redirects/node_modules/ms/package.json
+++ /dev/null
@@ -1,72 +0,0 @@
-{
-  "_args": [
-    [
-      "ms@2.0.0",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "ms@2.0.0",
-  "_id": "ms@2.0.0",
-  "_inBundle": false,
-  "_integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
-  "_location": "/follow-redirects/ms",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "version",
-    "registry": true,
-    "raw": "ms@2.0.0",
-    "name": "ms",
-    "escapedName": "ms",
-    "rawSpec": "2.0.0",
-    "saveSpec": null,
-    "fetchSpec": "2.0.0"
-  },
-  "_requiredBy": [
-    "/follow-redirects/debug"
-  ],
-  "_resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-  "_spec": "2.0.0",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
-  "bugs": {
-    "url": "https://github.com/zeit/ms/issues"
-  },
-  "description": "Tiny milisecond conversion utility",
-  "devDependencies": {
-    "eslint": "3.19.0",
-    "expect.js": "0.3.1",
-    "husky": "0.13.3",
-    "lint-staged": "3.4.1",
-    "mocha": "3.4.1"
-  },
-  "eslintConfig": {
-    "extends": "eslint:recommended",
-    "env": {
-      "node": true,
-      "es6": true
-    }
-  },
-  "files": [
-    "index.js"
-  ],
-  "homepage": "https://github.com/zeit/ms#readme",
-  "license": "MIT",
-  "lint-staged": {
-    "*.js": [
-      "npm run lint",
-      "prettier --single-quote --write",
-      "git add"
-    ]
-  },
-  "main": "./index",
-  "name": "ms",
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/zeit/ms.git"
-  },
-  "scripts": {
-    "lint": "eslint lib/* bin/*",
-    "precommit": "lint-staged",
-    "test": "mocha tests.js"
-  },
-  "version": "2.0.0"
-}
diff --git a/WebServer/node_modules/follow-redirects/package.json b/WebServer/node_modules/follow-redirects/package.json
deleted file mode 100644
index c5866bf09..000000000
--- a/WebServer/node_modules/follow-redirects/package.json
+++ /dev/null
@@ -1,99 +0,0 @@
-{
-  "_args": [
-    [
-      "follow-redirects@1.5.10",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "follow-redirects@1.5.10",
-  "_id": "follow-redirects@1.5.10",
-  "_inBundle": false,
-  "_integrity": "sha512-0V5l4Cizzvqt5D44aTXbFZz+FtyXV1vrDN6qrelxtfYQKW0KO0W2T/hkE8xvGa/540LkZlkaUjO4ailYTFtHVQ==",
-  "_location": "/follow-redirects",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "version",
-    "registry": true,
-    "raw": "follow-redirects@1.5.10",
-    "name": "follow-redirects",
-    "escapedName": "follow-redirects",
-    "rawSpec": "1.5.10",
-    "saveSpec": null,
-    "fetchSpec": "1.5.10"
-  },
-  "_requiredBy": [
-    "/axios"
-  ],
-  "_resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.5.10.tgz",
-  "_spec": "1.5.10",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
-  "author": {
-    "name": "Ruben Verborgh",
-    "email": "ruben@verborgh.org",
-    "url": "https://ruben.verborgh.org/"
-  },
-  "bugs": {
-    "url": "https://github.com/follow-redirects/follow-redirects/issues"
-  },
-  "contributors": [
-    {
-      "name": "Olivier Lalonde",
-      "email": "olalonde@gmail.com",
-      "url": "http://www.syskall.com"
-    },
-    {
-      "name": "James Talmage",
-      "email": "james@talmage.io"
-    }
-  ],
-  "dependencies": {
-    "debug": "=3.1.0"
-  },
-  "description": "HTTP and HTTPS modules that follow redirects.",
-  "devDependencies": {
-    "concat-stream": "^1.6.0",
-    "coveralls": "^3.0.2",
-    "eslint": "^4.19.1",
-    "express": "^4.16.2",
-    "mocha": "^5.0.0",
-    "nyc": "^11.8.0"
-  },
-  "engines": {
-    "node": ">=4.0"
-  },
-  "files": [
-    "index.js",
-    "create.js",
-    "http.js",
-    "https.js"
-  ],
-  "homepage": "https://github.com/follow-redirects/follow-redirects",
-  "keywords": [
-    "http",
-    "https",
-    "url",
-    "redirect",
-    "client",
-    "location",
-    "utility"
-  ],
-  "license": "MIT",
-  "main": "index.js",
-  "name": "follow-redirects",
-  "nyc": {
-    "reporter": [
-      "lcov",
-      "text"
-    ]
-  },
-  "repository": {
-    "type": "git",
-    "url": "git+ssh://git@github.com/follow-redirects/follow-redirects.git"
-  },
-  "scripts": {
-    "lint": "eslint *.js test",
-    "mocha": "nyc mocha",
-    "test": "npm run lint && npm run mocha"
-  },
-  "version": "1.5.10"
-}
diff --git a/WebServer/node_modules/is-buffer/index.js b/WebServer/node_modules/is-buffer/index.js
deleted file mode 100644
index da9bfdd7d..000000000
--- a/WebServer/node_modules/is-buffer/index.js
+++ /dev/null
@@ -1,11 +0,0 @@
-/*!
- * Determine if an object is a Buffer
- *
- * @author   Feross Aboukhadijeh <https://feross.org>
- * @license  MIT
- */
-
-module.exports = function isBuffer (obj) {
-  return obj != null && obj.constructor != null &&
-    typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
-}
diff --git a/WebServer/node_modules/is-buffer/package.json b/WebServer/node_modules/is-buffer/package.json
deleted file mode 100644
index 22223c1ee..000000000
--- a/WebServer/node_modules/is-buffer/package.json
+++ /dev/null
@@ -1,83 +0,0 @@
-{
-  "_args": [
-    [
-      "is-buffer@2.0.3",
-      "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer"
-    ]
-  ],
-  "_from": "is-buffer@2.0.3",
-  "_id": "is-buffer@2.0.3",
-  "_inBundle": false,
-  "_integrity": "sha512-U15Q7MXTuZlrbymiz95PJpZxu8IlipAp4dtS3wOdgPXx3mqBnslrWU14kxfHB+Py/+2PVKSr37dMAgM2A4uArw==",
-  "_location": "/is-buffer",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "version",
-    "registry": true,
-    "raw": "is-buffer@2.0.3",
-    "name": "is-buffer",
-    "escapedName": "is-buffer",
-    "rawSpec": "2.0.3",
-    "saveSpec": null,
-    "fetchSpec": "2.0.3"
-  },
-  "_requiredBy": [
-    "/axios"
-  ],
-  "_resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.3.tgz",
-  "_spec": "2.0.3",
-  "_where": "C:\\Users\\Luis\\source\\repos\\AAMasters\\WebServer",
-  "author": {
-    "name": "Feross Aboukhadijeh",
-    "email": "feross@feross.org",
-    "url": "https://feross.org"
-  },
-  "bugs": {
-    "url": "https://github.com/feross/is-buffer/issues"
-  },
-  "dependencies": {},
-  "description": "Determine if an object is a Buffer",
-  "devDependencies": {
-    "airtap": "0.0.7",
-    "standard": "*",
-    "tape": "^4.0.0"
-  },
-  "engines": {
-    "node": ">=4"
-  },
-  "homepage": "https://github.com/feross/is-buffer#readme",
-  "keywords": [
-    "arraybuffer",
-    "browser",
-    "browser buffer",
-    "browserify",
-    "buffer",
-    "buffers",
-    "core buffer",
-    "dataview",
-    "float32array",
-    "float64array",
-    "int16array",
-    "int32array",
-    "type",
-    "typed array",
-    "uint32array"
-  ],
-  "license": "MIT",
-  "main": "index.js",
-  "name": "is-buffer",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/feross/is-buffer.git"
-  },
-  "scripts": {
-    "test": "standard && npm run test-node && npm run test-browser",
-    "test-browser": "airtap -- test/*.js",
-    "test-browser-local": "airtap --local -- test/*.js",
-    "test-node": "tape test/*.js"
-  },
-  "testling": {
-    "files": "test/*.js"
-  },
-  "version": "2.0.3"
-}
diff --git a/WebServer/package-lock.json b/WebServer/package-lock.json
deleted file mode 100644
index 5c1f45a6c..000000000
--- a/WebServer/package-lock.json
+++ /dev/null
@@ -1,153 +0,0 @@
-{
-  "name": "WebServer",
-  "version": "0.1.0",
-  "lockfileVersion": 1,
-  "requires": true,
-  "dependencies": {
-    "axios": {
-      "version": "0.19.0",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-0.19.0.tgz",
-      "integrity": "sha512-1uvKqKQta3KBxIz14F2v06AEHZ/dIoeKfbTRkK1E5oqjDnuEerLmYTgJB5AiQZHJcljpg1TuRzdjDR06qNk0DQ==",
-      "requires": {
-        "follow-redirects": "1.5.10",
-        "is-buffer": "2.0.3"
-      }
-    },
-    "balanced-match": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
-    },
-    "brace-expansion": {
-      "version": "1.1.11",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
-      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
-      "requires": {
-        "balanced-match": "1.0.0",
-        "concat-map": "0.0.1"
-      }
-    },
-    "ccxt": {
-      "version": "1.23.67",
-      "resolved": "https://registry.npmjs.org/ccxt/-/ccxt-1.23.67.tgz",
-      "integrity": "sha512-4GE4iTvW1lO8hDsuKYGr7+Gvt77aMx3NK4qSzIOLbDTsfrfL8PbPty7XTHnCOZUq1HaRjTY5IHhozZLccBsNWA=="
-    },
-    "concat-map": {
-      "version": "0.0.1",
-      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
-    },
-    "dotenv": {
-      "version": "8.0.0",
-      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-8.0.0.tgz",
-      "integrity": "sha512-30xVGqjLjiUOArT4+M5q9sYdvuR4riM6yK9wMcas9Vbp6zZa+ocC9dp6QoftuhTPhFAiLK/0C5Ni2nou/Bk8lg=="
-    },
-    "follow-redirects": {
-      "version": "1.5.10",
-      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.5.10.tgz",
-      "integrity": "sha512-0V5l4Cizzvqt5D44aTXbFZz+FtyXV1vrDN6qrelxtfYQKW0KO0W2T/hkE8xvGa/540LkZlkaUjO4ailYTFtHVQ==",
-      "requires": {
-        "debug": "3.1.0"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
-          "requires": {
-            "ms": "2.0.0"
-          }
-        },
-        "ms": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
-        }
-      }
-    },
-    "fs.realpath": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
-      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
-    },
-    "glob": {
-      "version": "7.1.6",
-      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
-      "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
-      "requires": {
-        "fs.realpath": "1.0.0",
-        "inflight": "1.0.6",
-        "inherits": "2.0.4",
-        "minimatch": "3.0.4",
-        "once": "1.4.0",
-        "path-is-absolute": "1.0.1"
-      }
-    },
-    "inflight": {
-      "version": "1.0.6",
-      "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
-      "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
-      "requires": {
-        "once": "1.4.0",
-        "wrappy": "1.0.2"
-      }
-    },
-    "inherits": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
-      "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
-    },
-    "is-buffer": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.3.tgz",
-      "integrity": "sha512-U15Q7MXTuZlrbymiz95PJpZxu8IlipAp4dtS3wOdgPXx3mqBnslrWU14kxfHB+Py/+2PVKSr37dMAgM2A4uArw=="
-    },
-    "is-wsl": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/is-wsl/-/is-wsl-1.1.0.tgz",
-      "integrity": "sha1-HxbkqiKwTRM2tmGIpmrzxgDDpm0="
-    },
-    "minimatch": {
-      "version": "3.0.4",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
-      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
-      "requires": {
-        "brace-expansion": "1.1.11"
-      }
-    },
-    "once": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
-      "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
-      "requires": {
-        "wrappy": "1.0.2"
-      }
-    },
-    "open": {
-      "version": "6.4.0",
-      "resolved": "https://registry.npmjs.org/open/-/open-6.4.0.tgz",
-      "integrity": "sha512-IFenVPgF70fSm1keSd2iDBIDIBZkroLeuffXq+wKTzTJlBpesFWojV9lb8mzOfaAzM1sr7HQHuO0vtV0zYekGg==",
-      "requires": {
-        "is-wsl": "1.1.0"
-      }
-    },
-    "path-is-absolute": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
-      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
-    },
-    "rimraf": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
-      "integrity": "sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==",
-      "requires": {
-        "glob": "7.1.6"
-      }
-    },
-    "wrappy": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
-    }
-  }
-}
diff --git a/WebServer/package.json b/WebServer/package.json
deleted file mode 100644
index e3c6ed743..000000000
--- a/WebServer/package.json
+++ /dev/null
@@ -1,19 +0,0 @@
-{
-  "name": "WebServer",
-  "version": "0.1.0",
-  "description": "Superalgos Web Server",
-  "main": "server.js",
-  "author": "Superalgos",
-  "license": "Apache-2.0",
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/Superalgos/WebServer.git"
-  },
-  "dependencies": {
-    "axios": "0.19.0",
-    "ccxt": "^1.23.67",
-    "dotenv": "8.0.0",
-    "open": "^6.4.0",
-    "rimraf": "^3.0.2"
-  }
-}
diff --git a/WebServer/server.js b/WebServer/server.js
deleted file mode 100644
index 45fc2ebfd..000000000
--- a/WebServer/server.js
+++ /dev/null
@@ -1,653 +0,0 @@
-
-require('dotenv').config()
-const { fork } = require('child_process')
-const open = require('open')
-
-CONSOLE_LOG = process.env.CONSOLE_LOG === 'true'
-CONSOLE_ERROR_LOG = process.env.CONSOLE_ERROR_LOG === 'true'
-LOG_FILE_CONTENT = process.env.LOG_FILE_CONTENT === 'true'
-
-global.DEFAULT_OK_RESPONSE = {
-  result: 'Ok',
-  message: 'Operation Succeeded'
-}
-
-global.DEFAULT_FAIL_RESPONSE = {
-  result: 'Fail',
-  message: 'Operation Failed'
-}
-
-global.DEFAULT_RETRY_RESPONSE = {
-  result: 'Retry',
-  message: 'Retry Later'
-}
-
-global.CUSTOM_OK_RESPONSE = {
-  result: 'Ok, but check Message',
-  message: 'Custom Message'
-}
-
-global.CUSTOM_FAIL_RESPONSE = {
-  result: 'Fail Because',
-  message: 'Custom Message'
-}
-
-let port = process.env.WEB_SERVER_PORT  
-
-process.on('uncaughtException', function (err) {
-    if (err.message.indexOf("EADDRINUSE") > 0) {
-        console.log("Superalgos Web Server cannot be started. Reason: the port " + port + " is already in use by another application. The web server cannot be started until either you stop the other application or you change the port number at the WebServer/.env file for an unused one. (variable name WEB_SERVER_PORT)")
-        return
-    }
-    console.log('[ERROR] Web Server -> server -> uncaughtException -> err.message = ' + err.message)
-    console.log('[ERROR] Web Server -> server -> uncaughtException -> err.stack = ' + err.stack)
-    process.exit(1)
-})
-
-process.on('unhandledRejection', (reason, p) => {
-    console.log('[ERROR] Web Server -> server -> unhandledRejection -> reason = ' + JSON.stringify(reason))
-    console.log('[ERROR] Web Server -> server -> unhandledRejection -> p = ' + JSON.stringify(p))
-    process.exit(1)
-})
-
-let http = require('http')
-let isHttpServerStarted = false
-let cloneExecutorChildProcess
-
-startHtttpServer()
-
-function startHtttpServer () {
-  if (CONSOLE_LOG === true) { console.log('[INFO] server -> startHtttpServer -> Entering function.') }
-
-  try {
-    if (isHttpServerStarted === false) {
-      gWebServer = http.createServer(onBrowserRequest).listen(port)
-      isHttpServerStarted = true
-      open('http://localhost:' + port)
-      console.log('Web Server Started.')
-    }
-  } catch (err) {     
-      console.log('[ERROR] server -> startHtttpServer -> Error = ' + err.stack)
-  }
-}
-
-function startCloneExecutor () {
-  if (CONSOLE_LOG === true) { console.log('[INFO] server -> startCloneExecutor -> Entering function.') };
-
-  if (process.env.RUN_CLON_EXECUTOR !== 'true') { return }
-
-  let path = process.env.CLONE_EXECUTOR_PATH + '/run.js'
-  cloneExecutorChildProcess = fork(path, [], { stdio: 'inherit' })
-
-  cloneExecutorChildProcess.on('error', (err) => {
-    console.log(`[ERROR] server -> startCloneExecutor -> Clone Executor exited with error ${err}`)
-  })
-  cloneExecutorChildProcess.on('close', (code, signal) => {
-    console.log(`[INFO] CloneExecutor process terminated.`)
-  })
-}
-
-function stopCloneExecutor () {
-  if (CONSOLE_LOG === true) { console.log('[INFO] server -> stopCloneExecutor -> Entering function.') };
-
-  if (cloneExecutorChildProcess) {
-    cloneExecutorChildProcess.send('STOP');
-  }
-}
-
-function onBrowserRequest (request, response) {
-  if (CONSOLE_LOG === true && request.url.indexOf('NO-LOG') === -1) { console.log('[INFO] server -> onBrowserRequest -> request.url = ' + request.url) }
-
-  let requestParameters = request.url.split('/')
-
-  if (requestParameters[1].indexOf('index.html') >= 0) {
-    /*
-    We use this to solve the problem when someone is arriving to the site with a sessionToken in the queryString. We extract here that
-    token, that will be sent later embedded into the HTML code, so that it can enter into the stardard circuit where any site can put
-    the sessionToken into their HTML code and from there the Browser app will log the user in.
-    */
-
-    let queryString = requestParameters[1].split('?')
-
-    requestParameters[1] = ''
-    requestParameters[2] = queryString[1]
-    homePage()
-
-    return
-  }
-
-  requestParameters = request.url.split('?') // Remove version information
-  requestParameters = requestParameters[0].split('/')
-
-  switch (requestParameters[1]) {
-
-      case 'CCXT':
-          {
-                  getBody(processRequest)
-
-                  function getBody(callback) {
-                      let body = ''
-
-                      request.on('data', function (data) {
-                          body += data
-                          // Too much POST data
-                          if (body.length > 1e6) {
-                              request.connection.destroy()
-                          }
-                      })
-
-                      request.on('end', function () {
-                          callback(body)
-                      })
-                  }
-                  async function processRequest(body) {
-                      try {
-                      let params = JSON.parse(body)
-
-                      const ccxt = require('ccxt')
-                      
-                      switch (params.method) {
-                          case 'fetchMarkets': {
-
-                              const exchangeClass = ccxt[params.exchangeId]
-                              const exchangeConstructorParams = {
-                                  'timeout': 30000,
-                                  'enableRateLimit': true,
-                                  verbose: false
-                              }
-
-                              let ccxtExchange = new exchangeClass(exchangeConstructorParams)
-                              let ccxtMarkets = []
-
-                              if (ccxtExchange.has.fetchMarkets === true) {
-                                  ccxtMarkets = await ccxtExchange.fetchMarkets()
-                              }
-                              respondWithContent(JSON.stringify(ccxtMarkets), response)
-                              return
-                          }
-                          case 'listExchanges': {
-                              let exchanges = []
-                              for (let i = 0; i < ccxt.exchanges.length; i++) {
-                                  let exchangeId = ccxt.exchanges[i]
-
-                                  const exchangeClass = ccxt[exchangeId]
-                                  const exchangeConstructorParams = {
-                                      'timeout': 30000,
-                                      'enableRateLimit': true,
-                                      verbose: false
-                                  }
-                                  let ccxtExchange 
-                                  try { ccxtExchange = new exchangeClass(exchangeConstructorParams)}
-                                  catch (err) {}
-                                  if (ccxtExchange === undefined) {continue}
-                                  
-
-                                    if (ccxtExchange.has.fetchOHLCV === params.has.fetchOHLCV) {
-                                        if (ccxtExchange.has.fetchMarkets === params.has.fetchMarkets) {
-                                            if (ccxtExchange.timeframes['1m'] !== undefined) {
-                                                let exchange = {
-                                                    name: ccxtExchange.name,
-                                                    id: ccxtExchange.id
-                                                }
-                                                exchanges.push(exchange)
-                                            }
-                                        }
-                                    }
-                              }
-                              respondWithContent(JSON.stringify(exchanges), response)
-                              return
-                          }
-                      }
-
-                      let content = {
-                          err: global.DEFAULT_FAIL_RESPONSE // method not supported
-                      }
-                      } catch (err) {
-                          if (CONSOLE_LOG === true) { console.log('[INFO] server -> CCXT FetchMarkets -> Could not fetch markets.') }
-                          let error = {
-                              result: 'Fail Because',
-                              message: err.message
-                          }
-                          respondWithContent(JSON.stringify(error), response)
-                      }
-                  }
-                  break
-          }
-
-    case 'ResetLogsAndData':
-      {
-        try {
-            let rimraf = require('rimraf')
-            rimraf.sync(process.env.STORAGE_PATH + '/Masters/Masters/AAJason.1.0')
-            rimraf.sync(process.env.LOG_PATH)
-
-          respondWithContent(JSON.stringify(global.DEFAULT_OK_RESPONSE), response)
-        } catch (err) {
-          if (CONSOLE_LOG === true) { console.log('[INFO] server -> ResetLogsAndData -> Could not delete Logs and Data.') }
-          let error = {
-            result: 'Fail Because',
-            message: err.message
-          }
-          respondWithContent(JSON.stringify(error), response)
-        }
-        break
-      }
-    case 'RestartCloneExecutor':
-      {
-        try {
-          stopCloneExecutor()
-          startCloneExecutor()
-          respondWithContent(JSON.stringify(global.DEFAULT_OK_RESPONSE), response)
-        } catch (err) {
-          if (CONSOLE_LOG === true) { console.log('[INFO] server -> ResetLogsAndData -> Could not restart Clone Executor.') }
-          let error = {
-            result: 'Fail Because',
-            message: err.message
-          }
-          respondWithContent(JSON.stringify(error), response)
-        }
-
-        break
-      }
-    case 'StopCloneExecutor':
-      {
-        try {
-          stopCloneExecutor()
-          respondWithContent(JSON.stringify(global.DEFAULT_OK_RESPONSE), response)
-        } catch (err) {
-          if (CONSOLE_LOG === true) { console.log('[INFO] server -> ResetLogsAndData -> Could not Stop Clone Executor.') }
-          let error = {
-            result: 'Fail Because',
-            message: err.message
-          }
-          respondWithContent(JSON.stringify(error), response)
-        }
-        break
-      }
-
-    case 'LegacyPlotter.js':
-      {
-        respondWithFile(process.env.PATH_TO_WEB_SERVER +  'LegacyPlotter.js', response)
-      }
-      break
-
-    case 'PlotterPanel.js':
-      {
-        respondWithFile(process.env.PATH_TO_WEB_SERVER +  'PlotterPanel.js', response)
-      }
-      break
-
-    case 'Images': // This means the Scripts folder.
-      {
-        let path = process.env.PATH_TO_WEB_SERVER  +  'Images/' + requestParameters[2]
-
-        if (requestParameters[3] !== undefined) {
-          path = path + '/' + requestParameters[3]
-        }
-
-        if (requestParameters[4] !== undefined) {
-          path = path + '/' + requestParameters[4]
-        }
-
-        if (requestParameters[5] !== undefined) {
-          path = path + '/' + requestParameters[5]
-        }
-
-        path = unescape(path)
-
-        respondWithImage(path, response)
-      }
-      break
-
-    case 'favicon.ico': // This means the Scripts folder.
-      {
-              respondWithImage(process.env.PATH_TO_WEB_SERVER +  'Images/' + 'favicon.ico', response)
-      }
-      break
-
-    case 'CockpitSpace': // This means the CockpitSpace folder.
-      {
-        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/CockpitSpace/' + requestParameters[2], response)
-      }
-      break
-
-    case 'TopSpace': // This means the TopSpace folder.
-      {
-        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/TopSpace/' + requestParameters[2], response)
-      }
-      break
-
-    case 'DesignSpace': // This means the DesignSpace folder.
-
-      {
-        if (requestParameters[3] === undefined) {
-          respondWithFile(process.env.PATH_TO_CANVAS_APP + '/DesignSpace/' + requestParameters[2], response)
-          return
-        }
-        if (requestParameters[4] === undefined) {
-          respondWithFile(process.env.PATH_TO_CANVAS_APP + '/DesignSpace/' + requestParameters[2] + '/' + requestParameters[3], response)
-          return
-        }
-        if (requestParameters[5] === undefined) {
-          respondWithFile(process.env.PATH_TO_CANVAS_APP + '/DesignSpace/' + requestParameters[2] + '/' + requestParameters[3] + '/' + requestParameters[4], response)
-          return
-        }
-      }
-      break
-
-    case 'ControlsToolBox': // This means the DesignSpace folder.
-      {
-        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/ControlsToolBox/' + requestParameters[2], response)
-      }
-      break
-
-    case 'Utilities': // This means the DesignSpace folder.
-      {
-        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/Utilities/' + requestParameters[2], response)
-      }
-      break
-
-    case 'Scripts': // This means the Scripts folder.
-      {
-        respondWithFile(process.env.PATH_TO_WEB_SERVER +  'Scripts/' + requestParameters[2], response)
-      }
-      break
-
-    case 'externalScripts': // This means the Scripts folder.
-        {
-              respondWithFile(process.env.PATH_TO_WEB_SERVER + 'externalScripts/' + requestParameters[2], response)
-        }
-        break
-
-    case 'Plotters': // This means the plotter folder, not to be confused with the Plotters script!
-      {
-        let dataMine = requestParameters[2]
-        let codeName = requestParameters[3]
-        let moduleName = requestParameters[4]
-        let filePath = process.env.PLOTTERS_PATH + '/' + dataMine + '/plotters/' + codeName + '/' + moduleName
-        respondWithFile(filePath, response)
-      }
-      break
-
-    case 'PlotterPanels': // This means the PlotterPanels folder, not to be confused with the Plotter Panels scripts!
-      {
-        let dataMine = requestParameters[2]
-        let codeName = requestParameters[3]
-        let moduleName = requestParameters[4]
-        let filePath = process.env.PLOTTERS_PATH + '/' + dataMine + '/plotters/' + codeName + '/' + moduleName
-        respondWithFile(filePath, response)
-      }
-      break
-    case 'Panels':
-      {
-        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1] + '/' + requestParameters[2], response)
-      }
-      break
-
-    case 'ChartLayers':
-      {
-        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1] + '/' + requestParameters[2], response)
-      }
-      break
-
-    case 'Spaces':
-      {
-        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1] + '/' + requestParameters[2], response)
-      }
-      break
-
-    case 'Scales':
-      {
-        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1] + '/' + requestParameters[2], response)
-      }
-      break
-
-    case 'Files':
-      {
-        respondWithFile(process.env.PATH_TO_FILES_COMPONENT + '/' + requestParameters[2], response)
-      }
-      break
-
-    case 'FloatingSpace':
-      {
-        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1] + '/' + requestParameters[2], response)
-      }
-      break
-
-    case 'ChartingSpace':
-      {
-        respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1] + '/' + requestParameters[2], response)
-      }
-      break
-
-    case 'AppSchema.js':
-        {
-            let fs = require('fs')
-
-            try {
-                let filePath = process.env.APP_SCHEMA_PATH + 'AppSchema.json'
-                fs.readFile(filePath, onFileRead)
-            } catch (e) {
-                console.log('[ERROR] Error reading the App Schema.', e)
-            }
-
-            function onFileRead(err, appSchema) {
-                if (err) {
-                    respondWithContent(undefined, response)
-                } else {
-                    let responseContent = 'function getAppSchema(){ return ' + appSchema + '}'
-                    respondWithContent(responseContent, response)
-                }
-            }
-        }
-        break
-
-    case 'Workspace.js':
-        {
-            let fs = require('fs')
-
-            try {
-                let filePath = process.env.WORKSPACE_PATH + 'Workspace.json'
-                fs.readFile(filePath, onFileRead)
-            } catch (e) {
-                console.log('[ERROR] Error reading the Workspace.', e)
-            }
-
-            function onFileRead(err, workspace) {
-                if (err) {
-                    respondWithContent(undefined, response)
-                } else {
-                    let responseContent = 'function getWorkspace(){ return ' + workspace + '}'
-                    respondWithContent(responseContent, response)
-                }
-            }
-        }
-        break
-
-    case 'DataMines':
-          {
-              respondWithFile(process.env.DATA_MINES_PATH + '/' + requestParameters[2] + '.json', response)
-        }
-          break
-
-    case 'TradingSystems':
-        {
-            respondWithFile(process.env.TRADING_SYSTEMS_PATH + '/' + requestParameters[2] + '.json', response)
-        }
-        break
-
-    case 'SuperScripts':
-        {
-            respondWithFile(process.env.SUPER_SCRIPTS_PATH + '/' + requestParameters[2] + '.json', response)
-        }
-        break
-
-    case 'Storage':
-      {
-        respondWithFile(process.env.STORAGE_PATH + '/' + request.url.substring(9), response)
-      }
-      break
-
-    case 'GetDefinition':
-      {
-        respondWithFile(process.env.INTER_PROCESS_FILES_PATH + '/definition.json', response)
-      }
-      break
-
-    case 'SaveDefinition':
-      {
-        let fs = require('fs')
-        let body = ''
-
-        request.on('data', function (data) {
-          body += data
-          // Too much POST data
-          if (body.length > 1e6) {
-            request.connection.destroy()
-          }
-        })
-
-        request.on('end', function () {
-          try {
-            let filePath = process.env.INTER_PROCESS_FILES_PATH + '/definition.json'
-            fs.writeFile(filePath, body, onFileWrite)
-          } catch (e) {
-            console.log('[ERROR] Error writing user config.', e)
-            respondWithContent(undefined, response)
-          }
-
-          function onFileWrite (err) {
-            if (err) {
-              respondWithContent(undefined, response)
-            } else {
-              let responseContent = 'User config updated.'
-              respondWithContent(responseContent, response)
-            }
-          }
-        })
-      }
-      break
-
-    default:
-      {
-        homePage()
-      }
-  }
-
-  function homePage () {
-    if (requestParameters[1] === '') {
-      let fs = require('fs')
-      try {
-          let fileName = process.env.PATH_TO_WEB_SERVER  + 'index.html'
-        fs.readFile(fileName, onFileRead)
-
-        function onFileRead (err, file) {
-          if (CONSOLE_LOG === true) { console.log('[INFO] server -> onBrowserRequest -> onFileRead -> Entering function.') }
-
-          try {
-            let fileContent = file.toString()
-
-            fileContent = fileContent.replace('WEB_SERVER_PORT', process.env.WEB_SERVER_PORT)
-            respondWithContent(fileContent, response)
-          } catch (err) {
-            console.log('[ERROR] server -> onBrowserRequest -> File Not Found: ' + fileName + ' or Error = ' + err.stack)
-          }
-        }
-      } catch (err) {
-        console.log(err)
-      }
-    } else {
-      respondWithFile(process.env.PATH_TO_CANVAS_APP + '/' + requestParameters[1], response)
-    }
-  }
-}
-
-function respondWithFile (fileName, response) {
-  if (CONSOLE_LOG === true) { console.log('[INFO] server -> respondWithFile -> Entering function.') }
-
-  let fs = require('fs')
-  if (fileName.indexOf('undefined') > 0) {
-    console.log('[WRN] server -> respondWithFile -> Received request for undefined file. ')
-    respondWithContent(undefined, response)
-  } else {
-    try {
-      fs.readFile(fileName, onFileRead)
-
-      function onFileRead (err, file) {
-        if (CONSOLE_LOG === true) { console.log('[INFO] server -> respondWithFile -> onFileRead -> Entering function.') }
-        if (!err) {
-          respondWithContent(file.toString(), response)
-        } else {
-          respondWithContent(undefined, response)
-        }
-      }
-    } catch (err) {
-      returnEmptyArray()
-    }
-  }
-}
-
-function respondWithContent (content, response) {
-  if (CONSOLE_LOG === true) { console.log('[INFO] server -> respondWithContent -> Entering function.') }
-
-  try {
-    response.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate') // HTTP 1.1.
-    response.setHeader('Pragma', 'no-cache') // HTTP 1.0.
-    response.setHeader('Expires', '0') // Proxies.
-    response.setHeader('Access-Control-Allow-Origin', '*') // Allows to access data from other domains.
-
-    if (content !== undefined) {
-      response.writeHead(200, { 'Content-Type': 'text/html' })
-      response.write(content)
-    } else {
-      response.writeHead(404, { 'Content-Type': 'text/html' })
-      response.write('The specified key does not exist.')
-    }
-    response.end('\n')
-  } catch (err) {
-    returnEmptyArray(response)
-  }
-}
-
-function respondWithImage (fileName, response) {
-  if (CONSOLE_LOG === true) { console.log('[INFO] server -> respondWithImage -> Entering function.') }
-
-  let fs = require('fs')
-  try {
-    fs.readFile(fileName, onFileRead)
-
-    function onFileRead (err, file) {
-      if (CONSOLE_LOG === true) { console.log('[INFO] server -> respondWithImage -> onFileRead -> Entering function.') }
-
-      try {
-        response.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate') // HTTP 1.1.
-        response.setHeader('Pragma', 'no-cache') // HTTP 1.0.
-        response.setHeader('Expires', '0') // Proxies.
-        response.setHeader('Access-Control-Allow-Origin', '*') // Allows to access data from other domains.
-
-        response.writeHead(200, { 'Content-Type': 'image/png' })
-        response.end(file, 'binary')
-      } catch (err) {
-        console.log('[ERROR] server -> respondWithImage -> onFileRead -> File Not Found: ' + fileName + ' or Error = ' + err.stack)
-      }
-    }
-  } catch (err) {
-    console.log('[ERROR] server -> respondWithImage -> err = ' + err.stack)
-  }
-}
-
-function returnEmptyArray (response) {
-  try {
-    if (CONSOLE_LOG === true) { console.log('[INFO] server -> respondWithFile -> returnEmptyArray -> Entering function.') }
-
-    response.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate') // HTTP 1.1.
-    response.setHeader('Pragma', 'no-cache') // HTTP 1.0.
-    response.setHeader('Expires', '0') // Proxies.
-
-    response.writeHead(200, { 'Content-Type': 'text/html' })
-    response.write('[]')
-    response.end('\n')
-  } catch (err) {
-    console.log('[ERROR] server -> returnEmptyArray -> err.message ' + err.message)
-  }
-}
diff --git a/run.js b/run.js
index d4a1595da..5888aadb0 100644
--- a/run.js
+++ b/run.js
@@ -1,5 +1,5 @@
 const { fork } = require('child_process')
 
 fork('./BackendServers/server.js', undefined, { stdio: 'inherit' })
-fork('./WebServer/server.js', undefined, { stdio: 'inherit' })
+