@jmparsons/ccxt
Version:
A JavaScript / Python / PHP cryptocurrency trading library with support for 100+ exchanges
217 lines (203 loc) • 8.3 kB
JavaScript
'use strict';
// ---------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { ExchangeError } = require ('./base/errors');
// ---------------------------------------------------------------------------
module.exports = class coinmate extends Exchange {
describe () {
return this.deepExtend (super.describe (), {
'id': 'coinmate',
'name': 'CoinMate',
'countries': [ 'GB', 'CZ', 'EU' ], // UK, Czech Republic
'rateLimit': 1000,
'has': {
'CORS': true,
},
'urls': {
'logo': 'https://user-images.githubusercontent.com/1294454/27811229-c1efb510-606c-11e7-9a36-84ba2ce412d8.jpg',
'api': 'https://coinmate.io/api',
'www': 'https://coinmate.io',
'doc': [
'http://docs.coinmate.apiary.io',
'https://coinmate.io/developers',
],
},
'requiredCredentials': {
'apiKey': true,
'secret': true,
'uid': true,
},
'api': {
'public': {
'get': [
'orderBook',
'ticker',
'transactions',
],
},
'private': {
'post': [
'balances',
'bitcoinWithdrawal',
'bitcoinDepositAddresses',
'buyInstant',
'buyLimit',
'cancelOrder',
'cancelOrderWithInfo',
'createVoucher',
'openOrders',
'redeemVoucher',
'sellInstant',
'sellLimit',
'transactionHistory',
'unconfirmedBitcoinDeposits',
],
},
},
'markets': {
'BTC/EUR': { 'id': 'BTC_EUR', 'symbol': 'BTC/EUR', 'base': 'BTC', 'quote': 'EUR', 'precision': { 'amount': 4, 'price': 2 }},
'BTC/CZK': { 'id': 'BTC_CZK', 'symbol': 'BTC/CZK', 'base': 'BTC', 'quote': 'CZK', 'precision': { 'amount': 4, 'price': 2 }},
'LTC/BTC': { 'id': 'LTC_BTC', 'symbol': 'LTC/BTC', 'base': 'LTC', 'quote': 'BTC', 'precision': { 'amount': 4, 'price': 5 }},
},
'fees': {
'trading': {
'maker': 0.0005,
'taker': 0.0035,
},
},
});
}
async fetchBalance (params = {}) {
let response = await this.privatePostBalances ();
let balances = response['data'];
let result = { 'info': balances };
let currencies = Object.keys (this.currencies);
for (let i = 0; i < currencies.length; i++) {
let currency = currencies[i];
let account = this.account ();
if (currency in balances) {
account['free'] = balances[currency]['available'];
account['used'] = balances[currency]['reserved'];
account['total'] = balances[currency]['balance'];
}
result[currency] = account;
}
return this.parseBalance (result);
}
async fetchOrderBook (symbol, limit = undefined, params = {}) {
let response = await this.publicGetOrderBook (this.extend ({
'currencyPair': this.marketId (symbol),
'groupByPriceLimit': 'False',
}, params));
let orderbook = response['data'];
let timestamp = orderbook['timestamp'] * 1000;
return this.parseOrderBook (orderbook, timestamp, 'bids', 'asks', 'price', 'amount');
}
async fetchTicker (symbol, params = {}) {
let response = await this.publicGetTicker (this.extend ({
'currencyPair': this.marketId (symbol),
}, params));
let ticker = response['data'];
let timestamp = ticker['timestamp'] * 1000;
let 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'),
'vwap': undefined,
'askVolume': undefined,
'open': undefined,
'close': last,
'last': last,
'previousClose': undefined,
'change': undefined,
'percentage': undefined,
'average': undefined,
'baseVolume': this.safeFloat (ticker, 'amount'),
'quoteVolume': undefined,
'info': ticker,
};
}
parseTrade (trade, market = undefined) {
if (!market)
market = this.markets_by_id[trade['currencyPair']];
return {
'id': trade['transactionId'],
'info': trade,
'timestamp': trade['timestamp'],
'datetime': this.iso8601 (trade['timestamp']),
'symbol': market['symbol'],
'type': undefined,
'side': undefined,
'price': trade['price'],
'amount': trade['amount'],
};
}
async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
let market = this.market (symbol);
let response = await this.publicGetTransactions (this.extend ({
'currencyPair': market['id'],
'minutesIntoHistory': 10,
}, params));
return this.parseTrades (response['data'], market, since, limit);
}
async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
let method = 'privatePost' + this.capitalize (side);
let order = {
'currencyPair': this.marketId (symbol),
};
if (type === 'market') {
if (side === 'buy')
order['total'] = amount; // amount in fiat
else
order['amount'] = amount; // amount in fiat
method += 'Instant';
} else {
order['amount'] = amount; // amount in crypto
order['price'] = price;
method += this.capitalize (type);
}
let response = await this[method] (this.extend (order, params));
return {
'info': response,
'id': response['data'].toString (),
};
}
async cancelOrder (id, symbol = undefined, params = {}) {
return await this.privatePostCancelOrder ({ 'orderId': id });
}
sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
let url = this.urls['api'] + '/' + path;
if (api === 'public') {
if (Object.keys (params).length)
url += '?' + this.urlencode (params);
} else {
this.checkRequiredCredentials ();
let nonce = this.nonce ().toString ();
let auth = nonce + this.uid + this.apiKey;
let signature = this.hmac (this.encode (auth), this.encode (this.secret));
body = this.urlencode (this.extend ({
'clientId': this.uid,
'nonce': nonce,
'publicKey': this.apiKey,
'signature': signature.toUpperCase (),
}, params));
headers = {
'Content-Type': 'application/x-www-form-urlencoded',
};
}
return { 'url': url, 'method': method, 'body': body, 'headers': headers };
}
async request (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
let 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));
return response;
}
};