Beta 7 with some repo names changed.

Client/node_modules/eth-lib/src/provider.js

@@ -0,0 +1,87 @@
+const njsp = require("nano-json-stream-parser");
+const request = require("xhr-request-promise");
+
+const EthereumProvider = (url, intercept) => {
+  intercept = intercept || (() => {});
+
+  let api = {};
+  let onResponse = {}; 
+  let callbacks = {};
+  let nextId = 0;
+  let send;
+
+  const makeSender = send => {
+    const P = fn => (...args) => new Promise((resolve, reject) =>
+      fn(...args.concat((err,res) => err ? reject(err) : resolve(res))));
+    const sender = intercept => (method, params, callback) => {
+      const intercepted = intercept(method, params, P(sender(() => {})));
+      if (intercepted) {
+        intercepted.then(response => callback(null, response));
+      } else {
+        send(method, params, callback);
+      }
+    }
+    return sender(intercept);
+  };
+
+  const parseResponse = njsp(json => {
+    onResponse[json.id] && onResponse[json.id](null, json.result);
+  });
+
+  const genPayload = (method, params) => ({
+    jsonrpc: "2.0",
+    id: ++nextId,
+    method: method,
+    params: params
+  });
+
+  api.on = (name, callback) => {
+    callbacks[name] = callback;
+  }
+
+  if (/^ws/.test(url)) {
+    const WebSocket = require("w"+"s");
+    const ws = new WebSocket(url);
+    api.send = makeSender((method, params, callback) => {
+      const intercepted = intercept(method, params, P(send(() => {})));
+      if (intercepted) {
+        intercepted.then(response => callback(null, response));
+      } else {
+        const payload = genPayload(method, params);
+        onResponse[payload.id] = callback;
+        ws.send(JSON.stringify(payload));
+      }
+    });
+    ws.on("message", parseResponse);
+    ws.on("open", () => callbacks.connect && callbacks.connect(eth));
+    ws.on("close", () => callbacks.disconnect && callbacks.disconnect());
+    
+  } else if (/^http/.test(url)) {
+    api.send = makeSender((method, params, callback) => {
+      request(url, {
+        method: "POST",
+        contentType: "application/json-rpc",
+        body: JSON.stringify(genPayload(method,params))})
+        .then(answer => {
+          var resp = JSON.parse(answer);
+          if (resp.error) {
+            callback(resp.error.message);
+          } else {
+            callback(null, resp.result)
+          }
+        })
+        .catch(err => callback("Couldn't connect to Ethereum node."));
+    });
+
+    setTimeout(() => {
+      callbacks.connect && callbacks.connect();
+    }, 1);
+
+  } else {
+    throw "IPC not supported yet.";
+  }
+
+  return api;
+};
+
+module.exports = EthereumProvider;