consequunturatque
Version:
A JavaScript / Python / PHP cryptocurrency trading library with support for 130+ exchanges
461 lines (440 loc) • 16.7 kB
JavaScript
'use strict';
// ---------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { ExchangeError, AuthenticationError, ExchangeNotAvailable, ArgumentsRequired } = require ('./base/errors');
const Precise = require ('./base/Precise');
// ---------------------------------------------------------------------------
module.exports = class exx extends Exchange {
describe () {
return this.deepExtend (super.describe (), {
'id': 'exx',
'name': 'EXX',
'countries': [ 'CN' ],
'rateLimit': 1000 / 10,
'userAgent': this.userAgents['chrome'],
'has': {
'cancelOrder': true,
'createOrder': true,
'fetchBalance': true,
'fetchMarkets': true,
'fetchOpenOrders': true,
'fetchOrder': true,
'fetchOrderBook': true,
'fetchTicker': true,
'fetchTickers': true,
'fetchTrades': true,
},
'urls': {
'logo': 'https://user-images.githubusercontent.com/1294454/37770292-fbf613d0-2de4-11e8-9f79-f2dc451b8ccb.jpg',
'api': {
'public': 'https://api.exx.com/data/v1',
'private': 'https://trade.exx.com/api',
},
'www': 'https://www.exx.com/',
'doc': 'https://www.exx.com/help/restApi',
'fees': 'https://www.exx.com/help/rate',
'referral': 'https://www.exx.com/r/fde4260159e53ab8a58cc9186d35501f?recommQd=1',
},
'api': {
'public': {
'get': [
'markets',
'tickers',
'ticker',
'depth',
'trades',
],
},
'private': {
'get': [
'order',
'cancel',
'getOrder',
'getOpenOrders',
'getBalance',
],
},
},
'fees': {
'trading': {
'maker': 0.1 / 100,
'taker': 0.1 / 100,
},
'funding': {
'withdraw': {
'BCC': 0.0003,
'BCD': 0.0,
'BOT': 10.0,
'BTC': 0.001,
'BTG': 0.0,
'BTM': 25.0,
'BTS': 3.0,
'EOS': 1.0,
'ETC': 0.01,
'ETH': 0.01,
'ETP': 0.012,
'HPY': 0.0,
'HSR': 0.001,
'INK': 20.0,
'LTC': 0.005,
'MCO': 0.6,
'MONA': 0.01,
'QASH': 5.0,
'QCASH': 5.0,
'QTUM': 0.01,
'USDT': 5.0,
},
},
},
'commonCurrencies': {
'DOS': 'DEMOS',
'TV': 'TIV', // Ti-Value
},
'exceptions': {
'103': AuthenticationError,
},
});
}
async fetchMarkets (params = {}) {
const response = await this.publicGetMarkets (params);
const ids = Object.keys (response);
const result = [];
for (let i = 0; i < ids.length; i++) {
const id = ids[i];
const market = response[id];
const [ baseId, quoteId ] = id.split ('_');
const base = this.safeCurrencyCode (baseId);
const quote = this.safeCurrencyCode (quoteId);
const symbol = base + '/' + quote;
const active = market['isOpen'] === true;
const precision = {
'amount': parseInt (market['amountScale']),
'price': parseInt (market['priceScale']),
};
result.push ({
'id': id,
'symbol': symbol,
'base': base,
'quote': quote,
'baseId': baseId,
'quoteId': quoteId,
'active': active,
'precision': precision,
'limits': {
'amount': {
'min': Math.pow (10, -precision['amount']),
'max': Math.pow (10, precision['amount']),
},
'price': {
'min': Math.pow (10, -precision['price']),
'max': Math.pow (10, precision['price']),
},
'cost': {
'min': undefined,
'max': undefined,
},
},
'info': market,
});
}
return result;
}
parseTicker (ticker, market = undefined) {
const symbol = market['symbol'];
const timestamp = this.safeInteger (ticker, 'date');
ticker = ticker['ticker'];
const last = this.safeNumber (ticker, 'last');
return {
'symbol': symbol,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'high': this.safeNumber (ticker, 'high'),
'low': this.safeNumber (ticker, 'low'),
'bid': this.safeNumber (ticker, 'buy'),
'bidVolume': undefined,
'ask': this.safeNumber (ticker, 'sell'),
'askVolume': undefined,
'vwap': undefined,
'open': undefined,
'close': last,
'last': last,
'previousClose': undefined,
'change': this.safeNumber (ticker, 'riseRate'),
'percentage': undefined,
'average': undefined,
'baseVolume': this.safeNumber (ticker, 'vol'),
'quoteVolume': undefined,
'info': ticker,
};
}
async fetchTicker (symbol, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'currency': market['id'],
};
const response = await this.publicGetTicker (this.extend (request, params));
return this.parseTicker (response, market);
}
async fetchTickers (symbols = undefined, params = {}) {
await this.loadMarkets ();
const response = await this.publicGetTickers (params);
const result = {};
const timestamp = this.milliseconds ();
const ids = Object.keys (response);
for (let i = 0; i < ids.length; i++) {
const id = ids[i];
if (!(id in this.marketsById)) {
continue;
}
const market = this.marketsById[id];
const symbol = market['symbol'];
const ticker = {
'date': timestamp,
'ticker': response[id],
};
result[symbol] = this.parseTicker (ticker, market);
}
return this.filterByArray (result, 'symbol', symbols);
}
async fetchOrderBook (symbol, limit = undefined, params = {}) {
await this.loadMarkets ();
const request = {
'currency': this.marketId (symbol),
};
const response = await this.publicGetDepth (this.extend (request, params));
const timestamp = this.safeTimestamp (response, 'timestamp');
return this.parseOrderBook (response, symbol, timestamp);
}
parseTrade (trade, market = undefined) {
const timestamp = this.safeTimestamp (trade, 'date');
const priceString = this.safeString (trade, 'price');
const amountString = this.safeString (trade, 'amount');
const price = this.parseNumber (priceString);
const amount = this.parseNumber (amountString);
const cost = this.parseNumber (Precise.stringMul (priceString, amountString));
let symbol = undefined;
if (market !== undefined) {
symbol = market['symbol'];
}
const type = 'limit';
const side = this.safeString (trade, 'type');
const id = this.safeString (trade, 'tid');
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 request = {
'currency': market['id'],
};
const response = await this.publicGetTrades (this.extend (request, params));
return this.parseTrades (response, market, since, limit);
}
async fetchBalance (params = {}) {
await this.loadMarkets ();
const response = await this.privateGetGetBalance (params);
const result = { 'info': response };
const balances = this.safeValue (response, 'funds');
const currencies = Object.keys (balances);
for (let i = 0; i < currencies.length; i++) {
const currencyId = currencies[i];
const balance = balances[currencyId];
const code = this.safeCurrencyCode (currencyId);
const account = this.account ();
account['free'] = this.safeString (balance, 'balance');
account['used'] = this.safeString (balance, 'freeze');
account['total'] = this.safeString (balance, 'total');
result[code] = account;
}
return this.parseBalance (result, false);
}
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.safeNumber (order, 'price');
const cost = this.safeNumber (order, 'trade_money');
const amount = this.safeNumber (order, 'total_amount');
const filled = this.safeNumber (order, 'trade_amount', 0.0);
let status = this.safeInteger (order, 'status');
if (status === 1) {
status = 'canceled';
} else if (status === 2) {
status = 'closed';
} else {
status = 'open';
}
let fee = undefined;
if ('fees' in order) {
fee = {
'cost': this.safeNumber (order, 'fees'),
'currency': market['quote'],
};
}
return this.safeOrder ({
'id': this.safeString (order, 'id'),
'clientOrderId': undefined,
'datetime': this.iso8601 (timestamp),
'timestamp': timestamp,
'lastTradeTimestamp': undefined,
'status': status,
'symbol': symbol,
'type': 'limit',
'timeInForce': undefined,
'postOnly': undefined,
'side': order['type'],
'price': price,
'stopPrice': undefined,
'cost': cost,
'amount': amount,
'filled': filled,
'remaining': undefined,
'trades': undefined,
'fee': fee,
'info': order,
'average': undefined,
});
}
async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'currency': market['id'],
'type': side,
'price': price,
'amount': amount,
};
const response = await this.privateGetOrder (this.extend (request, params));
const id = this.safeString (response, 'id');
const order = this.parseOrder ({
'id': id,
'trade_date': this.milliseconds (),
'total_amount': amount,
'price': price,
'type': side,
'info': response,
}, market);
return order;
}
async cancelOrder (id, symbol = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'id': id,
'currency': market['id'],
};
const response = await this.privateGetCancel (this.extend (request, params));
return response;
}
async fetchOrder (id, symbol = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'id': id,
'currency': market['id'],
};
const response = await this.privateGetGetOrder (this.extend (request, params));
return this.parseOrder (response, market);
}
async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
if (symbol === undefined) {
throw new ArgumentsRequired (this.id + ' fetchOpenOrders() requires a symbol argument');
}
const market = this.market (symbol);
const request = {
'currency': market['id'],
};
const response = await this.privateGetGetOpenOrders (this.extend (request, params));
if (!Array.isArray (response)) {
return [];
}
return this.parseOrders (response, market, since, limit);
}
nonce () {
return this.milliseconds ();
}
sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
let url = this.urls['api'][api] + '/' + path;
if (api === 'public') {
if (Object.keys (params).length) {
url += '?' + this.urlencode (params);
}
} else {
this.checkRequiredCredentials ();
const query = this.urlencode (this.keysort (this.extend ({
'accesskey': this.apiKey,
'nonce': this.nonce (),
}, params)));
const signed = this.hmac (this.encode (query), this.encode (this.secret), 'sha512');
url += '?' + query + '&signature=' + signed;
headers = {
'Content-Type': 'application/x-www-form-urlencoded',
};
}
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
}
//
// {"result":false,"message":"服务端忙碌"}
// ... and other formats
//
const code = this.safeString (response, 'code');
const message = this.safeString (response, 'message');
const feedback = this.id + ' ' + body;
if (code === '100') {
return;
}
if (code !== undefined) {
this.throwExactlyMatchedException (this.exceptions, code, feedback);
if (code === '308') {
// this is returned by the exchange when there are no open orders
// {"code":308,"message":"Not Found Transaction Record"}
return;
} else {
throw new ExchangeError (feedback);
}
}
const result = this.safeValue (response, 'result');
if (result !== undefined) {
if (!result) {
if (message === '服务端忙碌') {
throw new ExchangeNotAvailable (feedback);
} else {
throw new ExchangeError (feedback);
}
}
}
}
};