@jmparsons/ccxt
Version:
A JavaScript / Python / PHP cryptocurrency trading library with support for 100+ exchanges
336 lines (316 loc) • 12.5 kB
JavaScript
'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': true,
},
'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 () {
let markets = await this.publicGetTicker ({
'market': 'all',
});
let result = [];
let keys = Object.keys (markets);
for (let p = 0; p < keys.length; p++) {
let key = keys[p];
let market = markets[key];
let parts = key.split ('_');
let id = parts[1];
let base = id.slice (0, 3);
let quote = id.slice (3, 6);
base = base.toUpperCase ();
quote = quote.toUpperCase ();
let symbol = base + '/' + quote;
result.push ({
'id': id,
'symbol': symbol,
'base': base,
'quote': quote,
'info': market,
});
}
return result;
}
async fetchBalance (params = {}) {
await this.loadMarkets ();
let response = await this.privatePostGetAccountInfo ();
let balances = response['result'];
let result = { 'info': balances };
let currencies = Object.keys (this.currencies);
for (let i = 0; i < currencies.length; i++) {
let currency = currencies[i];
let lowercase = currency.toLowerCase ();
let account = this.account ();
if (lowercase in balances['balance'])
account['total'] = parseFloat (balances['balance'][lowercase]['amount']);
if (lowercase in balances['frozen'])
account['used'] = parseFloat (balances['frozen'][lowercase]['amount']);
account['free'] = account['total'] - account['used'];
result[currency] = account;
}
return this.parseBalance (result);
}
createMarketRequest (market) {
let request = {};
let field = (market['plus']) ? 'symbol' : 'market';
request[field] = market['id'];
return request;
}
async fetchOrderBook (symbol, limit = undefined, params = {}) {
await this.loadMarkets ();
let market = this.market (symbol);
let method = market['api'] + 'GetOrderbook';
let request = this.createMarketRequest (market);
let orderbook = await this[method] (this.extend (request, params));
let timestamp = orderbook['date'] * 1000;
return this.parseOrderBook (orderbook, timestamp);
}
parseTicker (ticker, market) {
let timestamp = ticker['date'] * 1000;
let 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) {
let timestamp = ticker['Timestamp'];
let symbol = undefined;
if (market)
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 ();
let market = this.market (symbol);
let method = market['api'] + 'GetTicker';
let request = this.createMarketRequest (market);
let tickers = await this[method] (this.extend (request, params));
let ticker = tickers['ticker'];
if (market['plus'])
return this.parseTickerPlus (ticker, market);
return this.parseTicker (ticker, market);
}
parseTrade (trade, market) {
let timestamp = parseInt (trade['date']) * 1000;
return {
'id': trade['tid'],
'info': trade,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'symbol': market['symbol'],
'type': undefined,
'side': undefined,
'price': trade['price'],
'amount': trade['amount'],
};
}
parseTradePlus (trade, market) {
let timestamp = this.parse8601 (trade['timestamp']);
return {
'id': undefined,
'info': trade,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'symbol': market['symbol'],
'type': undefined,
'side': trade['side'].toLowerCase (),
'price': trade['price'],
'amount': trade['size'],
};
}
parseTradesPlus (trades, market = undefined) {
let 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 ();
let market = this.market (symbol);
let method = market['api'] + 'GetTrade';
let request = this.createMarketRequest (market);
if (market['plus']) {
let now = this.milliseconds ();
request['start_time'] = now - 86400 * 1000;
request['end_time'] = now;
} else {
method += 's'; // trades vs trade
}
let 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 ();
let market = this.market (symbol);
let method = 'privatePost' + this.capitalize (side) + 'Order2';
let order = {};
let id = market['id'].toUpperCase ();
if (type === 'market') {
order['params'] = [ undefined, amount, id ];
} else {
order['params'] = [ price, amount, id ];
}
let response = await this[method] (this.extend (order, params));
return {
'info': response,
'id': response['id'],
};
}
async cancelOrder (id, symbol = undefined, params = {}) {
await this.loadMarkets ();
let market = params['market']; // TODO fixme
return await this.privatePostCancelOrder (this.extend ({
'params': [ id, market ],
}, 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'];
let nonce = this.nonce ();
let request = {
'method': path,
'id': nonce,
'params': p,
};
p = p.join (',');
body = this.json (request);
let query = (
'tonce=' + nonce +
'&accesskey=' + this.apiKey +
'&requestmethod=' + method.toLowerCase () +
'&id=' + nonce +
'&method=' + path +
'¶ms=' + p
);
let signature = this.hmac (this.encode (query), this.encode (this.secret), 'sha1');
let 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 };
}
};