288 lines
9.9 KiB
JavaScript
288 lines
9.9 KiB
JavaScript
'use strict';
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// ---------------------------------------------------------------------------
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const Exchange = require ('./base/Exchange');
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const { ExchangeError } = require ('./base/errors');
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// ---------------------------------------------------------------------------
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module.exports = class lakebtc extends Exchange {
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describe () {
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return this.deepExtend (super.describe (), {
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'id': 'lakebtc',
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'name': 'LakeBTC',
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'countries': [ 'US' ],
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'version': 'api_v2',
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'has': {
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'CORS': true,
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'createMarketOrder': false,
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'fetchTickers': true,
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},
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'urls': {
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'logo': 'https://user-images.githubusercontent.com/1294454/28074120-72b7c38a-6660-11e7-92d9-d9027502281d.jpg',
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'api': 'https://api.lakebtc.com',
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'www': 'https://www.lakebtc.com',
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'doc': [
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'https://www.lakebtc.com/s/api_v2',
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'https://www.lakebtc.com/s/api',
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],
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},
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'api': {
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'public': {
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'get': [
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'bcorderbook',
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'bctrades',
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'ticker',
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],
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},
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'private': {
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'post': [
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'buyOrder',
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'cancelOrders',
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'getAccountInfo',
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'getExternalAccounts',
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'getOrders',
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'getTrades',
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'openOrders',
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'sellOrder',
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],
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},
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},
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'fees': {
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'trading': {
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'maker': 0.15 / 100,
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'taker': 0.2 / 100,
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},
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},
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});
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}
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async fetchMarkets (params = {}) {
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const response = await this.publicGetTicker (params);
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const result = [];
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const keys = Object.keys (response);
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for (let i = 0; i < keys.length; i++) {
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const id = keys[i];
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const market = response[id];
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const baseId = id.slice (0, 3);
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const quoteId = id.slice (3, 6);
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const base = baseId.toUpperCase ();
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const quote = quoteId.toUpperCase ();
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const symbol = base + '/' + quote;
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result.push ({
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'id': id,
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'symbol': symbol,
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'base': base,
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'quote': quote,
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'baseId': baseId,
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'quoteId': quoteId,
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'info': market,
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'active': undefined,
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'precision': this.precision,
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'limits': this.limits,
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});
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}
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return result;
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}
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async fetchBalance (params = {}) {
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await this.loadMarkets ();
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const response = await this.privatePostGetAccountInfo (params);
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const balances = this.safeValue (response, 'balance', {});
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const result = { 'info': response };
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const currencyIds = Object.keys (balances);
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for (let i = 0; i < currencyIds.length; i++) {
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const currencyId = currencyIds[i];
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const code = this.safeCurrencyCode (currencyId);
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const account = this.account ();
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account['total'] = this.safeFloat (balances, currencyId);
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result[code] = account;
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}
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return this.parseBalance (result);
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}
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async fetchOrderBook (symbol, limit = undefined, params = {}) {
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await this.loadMarkets ();
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const request = {
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'symbol': this.marketId (symbol),
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};
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const response = await this.publicGetBcorderbook (this.extend (request, params));
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return this.parseOrderBook (response);
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}
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parseTicker (ticker, market = undefined) {
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const timestamp = this.milliseconds ();
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let symbol = undefined;
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if (market !== undefined) {
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symbol = market['symbol'];
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}
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const last = this.safeFloat (ticker, 'last');
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return {
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'symbol': symbol,
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'timestamp': timestamp,
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'datetime': this.iso8601 (timestamp),
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'high': this.safeFloat (ticker, 'high'),
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'low': this.safeFloat (ticker, 'low'),
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'bid': this.safeFloat (ticker, 'bid'),
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'bidVolume': undefined,
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'ask': this.safeFloat (ticker, 'ask'),
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'askVolume': undefined,
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'vwap': undefined,
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'open': undefined,
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'close': last,
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'last': last,
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'previousClose': undefined,
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'change': undefined,
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'percentage': undefined,
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'average': undefined,
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'baseVolume': this.safeFloat (ticker, 'volume'),
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'quoteVolume': undefined,
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'info': ticker,
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};
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}
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async fetchTickers (symbols = undefined, params = {}) {
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await this.loadMarkets ();
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const response = await this.publicGetTicker (params);
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const ids = Object.keys (response);
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const result = {};
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for (let i = 0; i < ids.length; i++) {
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let symbol = ids[i];
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const ticker = response[symbol];
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let market = undefined;
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if (symbol in this.markets_by_id) {
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market = this.markets_by_id[symbol];
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symbol = market['symbol'];
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}
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result[symbol] = this.parseTicker (ticker, market);
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}
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return result;
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}
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async fetchTicker (symbol, params = {}) {
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await this.loadMarkets ();
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const market = this.market (symbol);
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const tickers = await this.publicGetTicker (params);
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return this.parseTicker (tickers[market['id']], market);
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}
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parseTrade (trade, market = undefined) {
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const timestamp = this.safeTimestamp (trade, 'date');
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const id = this.safeString (trade, 'tid');
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const price = this.safeFloat (trade, 'price');
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const amount = this.safeFloat (trade, 'amount');
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let cost = undefined;
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if (price !== undefined) {
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if (amount !== undefined) {
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cost = price * amount;
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}
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}
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let symbol = undefined;
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if (market !== undefined) {
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symbol = market['symbol'];
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}
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return {
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'id': id,
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'info': trade,
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'timestamp': timestamp,
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'datetime': this.iso8601 (timestamp),
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'symbol': symbol,
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'order': undefined,
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'type': undefined,
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'side': undefined,
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'takerOrMaker': undefined,
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'price': price,
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'amount': amount,
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'cost': cost,
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'fee': undefined,
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};
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}
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async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
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await this.loadMarkets ();
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const market = this.market (symbol);
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const request = {
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'symbol': market['id'],
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};
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const response = await this.publicGetBctrades (this.extend (request, params));
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return this.parseTrades (response, market, since, limit);
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}
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async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
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await this.loadMarkets ();
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if (type === 'market') {
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throw new ExchangeError (this.id + ' allows limit orders only');
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}
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const method = 'privatePost' + this.capitalize (side) + 'Order';
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const market = this.market (symbol);
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const order = {
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'params': [ price, amount, market['id'] ],
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};
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const response = await this[method] (this.extend (order, params));
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return {
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'info': response,
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'id': this.safeString (response, 'id'),
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};
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}
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async cancelOrder (id, symbol = undefined, params = {}) {
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await this.loadMarkets ();
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const request = {
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'params': [ id ],
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};
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return await this.privatePostCancelOrder (this.extend (request, params));
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}
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nonce () {
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return this.microseconds ();
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}
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sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
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let url = this.urls['api'] + '/' + this.version;
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if (api === 'public') {
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url += '/' + path;
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if (Object.keys (params).length) {
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url += '?' + this.urlencode (params);
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}
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} else {
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this.checkRequiredCredentials ();
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const nonce = this.nonce ();
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let queryParams = '';
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if ('params' in params) {
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const paramsList = params['params'];
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queryParams = paramsList.join (',');
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}
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const query = this.urlencode ({
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'tonce': nonce,
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'accesskey': this.apiKey,
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'requestmethod': method.toLowerCase (),
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'id': nonce,
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'method': path,
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'params': queryParams,
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});
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body = this.json ({
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'method': path,
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'params': queryParams,
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'id': nonce,
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});
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const signature = this.hmac (this.encode (query), this.encode (this.secret), 'sha1');
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const auth = this.encode (this.apiKey + ':' + signature);
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headers = {
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'Json-Rpc-Tonce': nonce.toString (),
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'Authorization': 'Basic ' + this.decode (this.stringToBase64 (auth)),
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'Content-Type': 'application/json',
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};
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}
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return { 'url': url, 'method': method, 'body': body, 'headers': headers };
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}
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async request (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
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const response = await this.fetch2 (path, api, method, params, headers, body);
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if ('error' in response) {
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throw new ExchangeError (this.id + ' ' + this.json (response));
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}
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return response;
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}
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};
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