consequunturatque
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A JavaScript / Python / PHP cryptocurrency trading library with support for 130+ exchanges
442 lines (419 loc) • 16.7 kB
JavaScript
'use strict';
// ---------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { ExchangeError, AuthenticationError, RateLimitExceeded, ArgumentsRequired } = require ('./base/errors');
const Precise = require ('./base/Precise');
// ---------------------------------------------------------------------------
module.exports = class coinfalcon extends Exchange {
describe () {
return this.deepExtend (super.describe (), {
'id': 'coinfalcon',
'name': 'CoinFalcon',
'countries': [ 'GB' ],
'rateLimit': 1000,
'version': 'v1',
'has': {
'cancelOrder': true,
'createOrder': true,
'fetchBalance': true,
'fetchMarkets': true,
'fetchMyTrades': true,
'fetchOpenOrders': true,
'fetchOrder': true,
'fetchOrderBook': true,
'fetchTicker': true,
'fetchTickers': true,
'fetchTrades': true,
},
'urls': {
'logo': 'https://user-images.githubusercontent.com/1294454/41822275-ed982188-77f5-11e8-92bb-496bcd14ca52.jpg',
'api': 'https://coinfalcon.com',
'www': 'https://coinfalcon.com',
'doc': 'https://docs.coinfalcon.com',
'fees': 'https://coinfalcon.com/fees',
'referral': 'https://coinfalcon.com/?ref=CFJSVGTUPASB',
},
'api': {
'public': {
'get': [
'markets',
'markets/{market}/orders',
'markets/{market}/trades',
],
},
'private': {
'get': [
'user/accounts',
'user/orders',
'user/orders/{id}',
'user/trades',
],
'post': [
'user/orders',
],
'delete': [
'user/orders/{id}',
],
},
},
'fees': {
'trading': {
'tierBased': true,
'maker': 0.0,
'taker': 0.002, // tiered fee starts at 0.2%
},
},
'precision': {
'amount': 8,
'price': 8,
},
});
}
async fetchMarkets (params = {}) {
const response = await this.publicGetMarkets (params);
const markets = this.safeValue (response, 'data');
const result = [];
for (let i = 0; i < markets.length; i++) {
const market = markets[i];
const [ baseId, quoteId ] = market['name'].split ('-');
const base = this.safeCurrencyCode (baseId);
const quote = this.safeCurrencyCode (quoteId);
const symbol = base + '/' + quote;
const precision = {
'amount': this.safeInteger (market, 'size_precision'),
'price': this.safeInteger (market, 'price_precision'),
};
result.push ({
'id': market['name'],
'symbol': symbol,
'base': base,
'quote': quote,
'baseId': baseId,
'quoteId': quoteId,
'active': true,
'precision': precision,
'limits': {
'amount': {
'min': Math.pow (10, -precision['amount']),
'max': undefined,
},
'price': {
'min': Math.pow (10, -precision['price']),
'max': undefined,
},
'cost': {
'min': undefined,
'max': undefined,
},
},
'info': market,
});
}
return result;
}
parseTicker (ticker, market = undefined) {
const marketId = this.safeString (ticker, 'name');
const symbol = this.safeSymbol (marketId, market, '-');
const timestamp = this.milliseconds ();
const last = parseFloat (ticker['last_price']);
return {
'symbol': symbol,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'high': undefined,
'low': undefined,
'bid': undefined,
'bidVolume': undefined,
'ask': undefined,
'askVolume': undefined,
'vwap': undefined,
'open': undefined,
'close': last,
'last': last,
'previousClose': undefined,
'change': this.safeNumber (ticker, 'change_in_24h'),
'percentage': undefined,
'average': undefined,
'baseVolume': undefined,
'quoteVolume': this.safeNumber (ticker, 'volume'),
'info': ticker,
};
}
async fetchTicker (symbol, params = {}) {
await this.loadMarkets ();
const tickers = await this.fetchTickers (params);
return tickers[symbol];
}
async fetchTickers (symbols = undefined, params = {}) {
await this.loadMarkets ();
const response = await this.publicGetMarkets (params);
const tickers = this.safeValue (response, 'data');
const result = {};
for (let i = 0; i < tickers.length; i++) {
const ticker = this.parseTicker (tickers[i]);
const symbol = ticker['symbol'];
result[symbol] = ticker;
}
return this.filterByArray (result, 'symbol', symbols);
}
async fetchOrderBook (symbol, limit = undefined, params = {}) {
await this.loadMarkets ();
const request = {
'market': this.marketId (symbol),
'level': '3',
};
const response = await this.publicGetMarketsMarketOrders (this.extend (request, params));
const data = this.safeValue (response, 'data', {});
return this.parseOrderBook (data, symbol, undefined, 'bids', 'asks', 'price', 'size');
}
parseTrade (trade, market = undefined) {
const timestamp = this.parse8601 (this.safeString (trade, 'created_at'));
const priceString = this.safeString (trade, 'price');
const amountString = this.safeString (trade, 'size');
const price = this.parseNumber (priceString);
const amount = this.parseNumber (amountString);
const cost = this.parseNumber (Precise.stringMul (priceString, amountString));
const symbol = market['symbol'];
const tradeId = this.safeString (trade, 'id');
const side = this.safeString (trade, 'side');
const orderId = this.safeString (trade, 'order_id');
let fee = undefined;
const feeCost = this.safeNumber (trade, 'fee');
if (feeCost !== undefined) {
const feeCurrencyCode = this.safeString (trade, 'fee_currency_code');
fee = {
'cost': feeCost,
'currency': this.safeCurrencyCode (feeCurrencyCode),
};
}
return {
'info': trade,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'symbol': symbol,
'id': tradeId,
'order': orderId,
'type': undefined,
'side': side,
'takerOrMaker': undefined,
'price': price,
'amount': amount,
'cost': cost,
'fee': fee,
};
}
async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
if (symbol === undefined) {
throw new ArgumentsRequired (this.id + ' fetchMyTrades() requires a symbol argument');
}
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'market': market['id'],
};
if (since !== undefined) {
request['start_time'] = this.iso8601 (since);
}
if (limit !== undefined) {
request['limit'] = limit;
}
const response = await this.privateGetUserTrades (this.extend (request, params));
const data = this.safeValue (response, 'data', []);
return this.parseTrades (data, market, since, limit);
}
async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'market': market['id'],
};
if (since !== undefined) {
request['since'] = this.iso8601 (since);
}
const response = await this.publicGetMarketsMarketTrades (this.extend (request, params));
const data = this.safeValue (response, 'data', []);
return this.parseTrades (data, market, since, limit);
}
async fetchBalance (params = {}) {
await this.loadMarkets ();
const response = await this.privateGetUserAccounts (params);
const result = { 'info': response };
const balances = this.safeValue (response, 'data');
for (let i = 0; i < balances.length; i++) {
const balance = balances[i];
const currencyId = this.safeString (balance, 'currency_code');
const code = this.safeCurrencyCode (currencyId);
const account = this.account ();
account['free'] = this.safeString (balance, 'available_balance');
account['used'] = this.safeString (balance, 'hold_balance');
account['total'] = this.safeString (balance, 'balance');
result[code] = account;
}
return this.parseBalance (result, false);
}
parseOrderStatus (status) {
const statuses = {
'fulfilled': 'closed',
'canceled': 'canceled',
'pending': 'open',
'open': 'open',
'partially_filled': 'open',
};
return this.safeString (statuses, status, status);
}
parseOrder (order, market = undefined) {
//
// {
// "id":"8bdd79f4-8414-40a2-90c3-e9f4d6d1eef4"
// "market":"IOT-BTC"
// "price":"0.0000003"
// "size":"4.0"
// "size_filled":"3.0"
// "fee":"0.0075"
// "fee_currency_code":"iot"
// "funds":"0.0"
// "status":"canceled"
// "order_type":"buy"
// "post_only":false
// "operation_type":"market_order"
// "created_at":"2018-01-12T21:14:06.747828Z"
// }
//
const marketId = this.safeString (order, 'market');
const symbol = this.safeSymbol (marketId, market, '-');
const timestamp = this.parse8601 (this.safeString (order, 'created_at'));
const price = this.safeNumber (order, 'price');
const amount = this.safeNumber (order, 'size');
const filled = this.safeNumber (order, 'size_filled');
const status = this.parseOrderStatus (this.safeString (order, 'status'));
let type = this.safeString (order, 'operation_type');
if (type !== undefined) {
type = type.split ('_');
type = type[0];
}
const side = this.safeString (order, 'order_type');
const postOnly = this.safeValue (order, 'post_only');
return this.safeOrder ({
'id': this.safeString (order, 'id'),
'clientOrderId': undefined,
'datetime': this.iso8601 (timestamp),
'timestamp': timestamp,
'status': status,
'symbol': symbol,
'type': type,
'timeInForce': undefined,
'postOnly': postOnly,
'side': side,
'price': price,
'stopPrice': undefined,
'cost': undefined,
'amount': amount,
'filled': filled,
'remaining': undefined,
'trades': undefined,
'fee': undefined,
'info': order,
'lastTradeTimestamp': undefined,
'average': undefined,
});
}
async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
// price/size must be string
const request = {
'market': market['id'],
'size': this.amountToPrecision (symbol, amount),
'order_type': side,
};
if (type === 'limit') {
price = this.priceToPrecision (symbol, price);
request['price'] = price.toString ();
}
request['operation_type'] = type + '_order';
const response = await this.privatePostUserOrders (this.extend (request, params));
const data = this.safeValue (response, 'data', {});
return this.parseOrder (data, market);
}
async cancelOrder (id, symbol = undefined, params = {}) {
await this.loadMarkets ();
const request = {
'id': id,
};
const response = await this.privateDeleteUserOrdersId (this.extend (request, params));
const market = this.market (symbol);
const data = this.safeValue (response, 'data', {});
return this.parseOrder (data, market);
}
async fetchOrder (id, symbol = undefined, params = {}) {
await this.loadMarkets ();
const request = {
'id': id,
};
const response = await this.privateGetUserOrdersId (this.extend (request, params));
const data = this.safeValue (response, 'data', {});
return this.parseOrder (data);
}
async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
const request = {};
let market = undefined;
if (symbol !== undefined) {
market = this.market (symbol);
request['market'] = market['id'];
}
if (since !== undefined) {
request['since_time'] = this.iso8601 (since);
}
// TODO: test status=all if it works for closed orders too
const response = await this.privateGetUserOrders (this.extend (request, params));
const data = this.safeValue (response, 'data', []);
const orders = this.filterByArray (data, 'status', [ 'pending', 'open', 'partially_filled' ], false);
return this.parseOrders (orders, market, since, limit);
}
nonce () {
return this.milliseconds ();
}
sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
let request = '/api/' + this.version + '/' + this.implodeParams (path, params);
const query = this.omit (params, this.extractParams (path));
if (api === 'public') {
if (Object.keys (query).length) {
request += '?' + this.urlencode (query);
}
} else {
this.checkRequiredCredentials ();
if (method === 'GET') {
if (Object.keys (query).length) {
request += '?' + this.urlencode (query);
}
} else {
body = this.json (query);
}
const seconds = this.seconds ().toString ();
let payload = [ seconds, method, request ].join ('|');
if (body) {
payload += '|' + body;
}
const signature = this.hmac (this.encode (payload), this.encode (this.secret));
headers = {
'CF-API-KEY': this.apiKey,
'CF-API-TIMESTAMP': seconds,
'CF-API-SIGNATURE': signature,
'Content-Type': 'application/json',
};
}
const url = this.urls['api'] + request;
return { 'url': url, 'method': method, 'body': body, 'headers': headers };
}
handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
if (code < 400) {
return;
}
const ErrorClass = this.safeValue ({
'401': AuthenticationError,
'429': RateLimitExceeded,
}, code, ExchangeError);
throw new ErrorClass (body);
}
};