consequunturatque
Version:
A JavaScript / Python / PHP cryptocurrency trading library with support for 130+ exchanges
428 lines (410 loc) • 18.9 kB
JavaScript
'use strict';
// ---------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { BadSymbol, ExchangeError } = require ('./base/errors');
const Precise = require ('./base/Precise');
// ---------------------------------------------------------------------------
module.exports = class coincheck extends Exchange {
describe () {
return this.deepExtend (super.describe (), {
'id': 'coincheck',
'name': 'coincheck',
'countries': [ 'JP', 'ID' ],
'rateLimit': 1500,
'has': {
'cancelOrder': true,
'CORS': false,
'createOrder': true,
'fetchBalance': true,
'fetchMyTrades': true,
'fetchOrderBook': true,
'fetchOpenOrders': true,
'fetchTicker': true,
'fetchTrades': true,
},
'urls': {
'logo': 'https://user-images.githubusercontent.com/51840849/87182088-1d6d6380-c2ec-11ea-9c64-8ab9f9b289f5.jpg',
'api': 'https://coincheck.com/api',
'www': 'https://coincheck.com',
'doc': 'https://coincheck.com/documents/exchange/api',
'fees': [
'https://coincheck.com/exchange/fee',
'https://coincheck.com/info/fee',
],
},
'api': {
'public': {
'get': [
'exchange/orders/rate',
'order_books',
'rate/{pair}',
'ticker',
'trades',
],
},
'private': {
'get': [
'accounts',
'accounts/balance',
'accounts/leverage_balance',
'bank_accounts',
'deposit_money',
'exchange/orders/opens',
'exchange/orders/transactions',
'exchange/orders/transactions_pagination',
'exchange/leverage/positions',
'lending/borrows/matches',
'send_money',
'withdraws',
],
'post': [
'bank_accounts',
'deposit_money/{id}/fast',
'exchange/orders',
'exchange/transfers/to_leverage',
'exchange/transfers/from_leverage',
'lending/borrows',
'lending/borrows/{id}/repay',
'send_money',
'withdraws',
],
'delete': [
'bank_accounts/{id}',
'exchange/orders/{id}',
'withdraws/{id}',
],
},
},
'markets': {
'BTC/JPY': { 'id': 'btc_jpy', 'symbol': 'BTC/JPY', 'base': 'BTC', 'quote': 'JPY', 'baseId': 'btc', 'quoteId': 'jpy' }, // the only real pair
// 'ETH/JPY': { 'id': 'eth_jpy', 'symbol': 'ETH/JPY', 'base': 'ETH', 'quote': 'JPY', 'baseId': 'eth', 'quoteId': 'jpy' },
'ETC/JPY': { 'id': 'etc_jpy', 'symbol': 'ETC/JPY', 'base': 'ETC', 'quote': 'JPY', 'baseId': 'etc', 'quoteId': 'jpy' },
// 'DAO/JPY': { 'id': 'dao_jpy', 'symbol': 'DAO/JPY', 'base': 'DAO', 'quote': 'JPY', 'baseId': 'dao', 'quoteId': 'jpy' },
// 'LSK/JPY': { 'id': 'lsk_jpy', 'symbol': 'LSK/JPY', 'base': 'LSK', 'quote': 'JPY', 'baseId': 'lsk', 'quoteId': 'jpy' },
'FCT/JPY': { 'id': 'fct_jpy', 'symbol': 'FCT/JPY', 'base': 'FCT', 'quote': 'JPY', 'baseId': 'fct', 'quoteId': 'jpy' },
'MONA/JPY': { 'id': 'mona_jpy', 'symbol': 'MONA/JPY', 'base': 'MONA', 'quote': 'JPY', 'baseId': 'mona', 'quoteId': 'jpy' },
// 'XMR/JPY': { 'id': 'xmr_jpy', 'symbol': 'XMR/JPY', 'base': 'XMR', 'quote': 'JPY', 'baseId': 'xmr', 'quoteId': 'jpy' },
// 'REP/JPY': { 'id': 'rep_jpy', 'symbol': 'REP/JPY', 'base': 'REP', 'quote': 'JPY', 'baseId': 'rep', 'quoteId': 'jpy' },
// 'XRP/JPY': { 'id': 'xrp_jpy', 'symbol': 'XRP/JPY', 'base': 'XRP', 'quote': 'JPY', 'baseId': 'xrp', 'quoteId': 'jpy' },
// 'ZEC/JPY': { 'id': 'zec_jpy', 'symbol': 'ZEC/JPY', 'base': 'ZEC', 'quote': 'JPY', 'baseId': 'zec', 'quoteId': 'jpy' },
// 'XEM/JPY': { 'id': 'xem_jpy', 'symbol': 'XEM/JPY', 'base': 'XEM', 'quote': 'JPY', 'baseId': 'xem', 'quoteId': 'jpy' },
// 'LTC/JPY': { 'id': 'ltc_jpy', 'symbol': 'LTC/JPY', 'base': 'LTC', 'quote': 'JPY', 'baseId': 'ltc', 'quoteId': 'jpy' },
// 'DASH/JPY': { 'id': 'dash_jpy', 'symbol': 'DASH/JPY', 'base': 'DASH', 'quote': 'JPY', 'baseId': 'dash', 'quoteId': 'jpy' },
// 'ETH/BTC': { 'id': 'eth_btc', 'symbol': 'ETH/BTC', 'base': 'ETH', 'quote': 'BTC', 'baseId': 'eth', 'quoteId': 'btc' },
'ETC/BTC': { 'id': 'etc_btc', 'symbol': 'ETC/BTC', 'base': 'ETC', 'quote': 'BTC', 'baseId': 'etc', 'quoteId': 'btc' },
// 'LSK/BTC': { 'id': 'lsk_btc', 'symbol': 'LSK/BTC', 'base': 'LSK', 'quote': 'BTC', 'baseId': 'lsk', 'quoteId': 'btc' },
// 'FCT/BTC': { 'id': 'fct_btc', 'symbol': 'FCT/BTC', 'base': 'FCT', 'quote': 'BTC', 'baseId': 'fct', 'quoteId': 'btc' },
// 'XMR/BTC': { 'id': 'xmr_btc', 'symbol': 'XMR/BTC', 'base': 'XMR', 'quote': 'BTC', 'baseId': 'xmr', 'quoteId': 'btc' },
// 'REP/BTC': { 'id': 'rep_btc', 'symbol': 'REP/BTC', 'base': 'REP', 'quote': 'BTC', 'baseId': 'rep', 'quoteId': 'btc' },
// 'XRP/BTC': { 'id': 'xrp_btc', 'symbol': 'XRP/BTC', 'base': 'XRP', 'quote': 'BTC', 'baseId': 'xrp', 'quoteId': 'btc' },
// 'ZEC/BTC': { 'id': 'zec_btc', 'symbol': 'ZEC/BTC', 'base': 'ZEC', 'quote': 'BTC', 'baseId': 'zec', 'quoteId': 'btc' },
// 'XEM/BTC': { 'id': 'xem_btc', 'symbol': 'XEM/BTC', 'base': 'XEM', 'quote': 'BTC', 'baseId': 'xem', 'quoteId': 'btc' },
// 'LTC/BTC': { 'id': 'ltc_btc', 'symbol': 'LTC/BTC', 'base': 'LTC', 'quote': 'BTC', 'baseId': 'ltc', 'quoteId': 'btc' },
// 'DASH/BTC': { 'id': 'dash_btc', 'symbol': 'DASH/BTC', 'base': 'DASH', 'quote': 'BTC', 'baseId': 'dash', 'quoteId': 'btc' },
},
'fees': {
'trading': {
'tierBased': false,
'percentage': true,
'maker': 0,
'taker': 0,
},
},
});
}
async fetchBalance (params = {}) {
await this.loadMarkets ();
const balances = await this.privateGetAccountsBalance (params);
const result = { 'info': balances };
const codes = Object.keys (this.currencies);
for (let i = 0; i < codes.length; i++) {
const code = codes[i];
const currencyId = this.currencyId (code);
if (currencyId in balances) {
const account = this.account ();
const reserved = currencyId + '_reserved';
account['free'] = this.safeString (balances, currencyId);
account['used'] = this.safeString (balances, reserved);
result[code] = account;
}
}
return this.parseBalance (result, false);
}
async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
// Only BTC/JPY is meaningful
let market = undefined;
if (symbol !== undefined) {
market = this.market (symbol);
}
const response = await this.privateGetExchangeOrdersOpens (params);
const rawOrders = this.safeValue (response, 'orders', []);
const parsedOrders = this.parseOrders (rawOrders, market, since, limit);
const result = [];
for (let i = 0; i < parsedOrders.length; i++) {
result.push (this.extend (parsedOrders[i], { 'status': 'open' }));
}
return result;
}
parseOrder (order, market = undefined) {
//
// fetchOpenOrders
//
// { id: 202835,
// order_type: "buy",
// rate: 26890,
// pair: "btc_jpy",
// pending_amount: "0.5527",
// pending_market_buy_amount: null,
// stop_loss_rate: null,
// created_at: "2015-01-10T05:55:38.000Z" }
//
// todo: add formats for fetchOrder, fetchClosedOrders here
//
const id = this.safeString (order, 'id');
const side = this.safeString (order, 'order_type');
const timestamp = this.parse8601 (this.safeString (order, 'created_at'));
const amount = this.safeNumber (order, 'pending_amount');
const remaining = this.safeNumber (order, 'pending_amount');
const price = this.safeNumber (order, 'rate');
const status = undefined;
const marketId = this.safeString (order, 'pair');
const symbol = this.safeSymbol (marketId, market, '_');
return this.safeOrder ({
'id': id,
'clientOrderId': undefined,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'lastTradeTimestamp': undefined,
'amount': amount,
'remaining': remaining,
'filled': undefined,
'side': side,
'type': undefined,
'timeInForce': undefined,
'postOnly': undefined,
'status': status,
'symbol': symbol,
'price': price,
'stopPrice': undefined,
'cost': undefined,
'fee': undefined,
'info': order,
'average': undefined,
'trades': undefined,
});
}
async fetchOrderBook (symbol, limit = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'pair': market['id'],
};
const response = await this.publicGetOrderBooks (this.extend (request, params));
return this.parseOrderBook (response, symbol);
}
async fetchTicker (symbol, params = {}) {
if (symbol !== 'BTC/JPY') {
throw new BadSymbol (this.id + ' fetchTicker () supports BTC/JPY only');
}
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'pair': market['id'],
};
const ticker = await this.publicGetTicker (this.extend (request, params));
const timestamp = this.safeTimestamp (ticker, 'timestamp');
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, 'bid'),
'bidVolume': undefined,
'ask': this.safeNumber (ticker, 'ask'),
'askVolume': undefined,
'vwap': undefined,
'open': undefined,
'close': last,
'last': last,
'previousClose': undefined,
'change': undefined,
'percentage': undefined,
'average': undefined,
'baseVolume': this.safeNumber (ticker, 'volume'),
'quoteVolume': undefined,
'info': ticker,
};
}
parseTrade (trade, market = undefined) {
const timestamp = this.parse8601 (this.safeString (trade, 'created_at'));
const id = this.safeString (trade, 'id');
const priceString = this.safeString (trade, 'rate');
const marketId = this.safeString (trade, 'pair');
market = this.safeValue (this.markets_by_id, marketId, market);
let symbol = undefined;
let baseId = undefined;
let quoteId = undefined;
if (marketId !== undefined) {
if (marketId in this.markets_by_id) {
market = this.markets_by_id[marketId];
baseId = market['baseId'];
quoteId = market['quoteId'];
symbol = market['symbol'];
} else {
const ids = marketId.split ('_');
baseId = ids[0];
quoteId = ids[1];
const base = this.safeCurrencyCode (baseId);
const quote = this.safeCurrencyCode (quoteId);
symbol = base + '/' + quote;
}
}
if (symbol === undefined) {
if (market !== undefined) {
symbol = market['symbol'];
}
}
let takerOrMaker = undefined;
let amountString = undefined;
let cost = undefined;
let side = undefined;
let fee = undefined;
let orderId = undefined;
if ('liquidity' in trade) {
if (this.safeString (trade, 'liquidity') === 'T') {
takerOrMaker = 'taker';
} else if (this.safeString (trade, 'liquidity') === 'M') {
takerOrMaker = 'maker';
}
const funds = this.safeValue (trade, 'funds', {});
amountString = this.safeString (funds, baseId);
cost = this.safeNumber (funds, quoteId);
fee = {
'currency': this.safeString (trade, 'fee_currency'),
'cost': this.safeNumber (trade, 'fee'),
};
side = this.safeString (trade, 'side');
orderId = this.safeString (trade, 'order_id');
} else {
amountString = this.safeString (trade, 'amount');
side = this.safeString (trade, 'order_type');
}
const price = this.parseNumber (priceString);
const amount = this.parseNumber (amountString);
if (cost === undefined) {
cost = this.parseNumber (Precise.stringMul (priceString, amountString));
}
return {
'id': id,
'info': trade,
'datetime': this.iso8601 (timestamp),
'timestamp': timestamp,
'symbol': symbol,
'type': undefined,
'side': side,
'order': orderId,
'takerOrMaker': takerOrMaker,
'price': price,
'amount': amount,
'cost': cost,
'fee': fee,
};
}
async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const response = await this.privateGetExchangeOrdersTransactions (this.extend ({}, params));
const transactions = this.safeValue (response, 'transactions', []);
return this.parseTrades (transactions, market, since, limit);
}
async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'pair': market['id'],
};
if (limit !== undefined) {
request['limit'] = limit;
}
const response = await this.publicGetTrades (this.extend (request, params));
const data = this.safeValue (response, 'data', []);
return this.parseTrades (data, market, since, limit);
}
async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
await this.loadMarkets ();
const request = {
'pair': this.marketId (symbol),
};
if (type === 'market') {
const order_type = type + '_' + side;
request['order_type'] = order_type;
const prefix = (side === 'buy') ? (order_type + '_') : '';
request[prefix + 'amount'] = amount;
} else {
request['order_type'] = side;
request['rate'] = price;
request['amount'] = amount;
}
const response = await this.privatePostExchangeOrders (this.extend (request, params));
const id = this.safeString (response, 'id');
return {
'info': response,
'id': id,
};
}
async cancelOrder (id, symbol = undefined, params = {}) {
const request = {
'id': id,
};
return await this.privateDeleteExchangeOrdersId (this.extend (request, params));
}
nonce () {
return this.milliseconds ();
}
sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
let url = this.urls['api'] + '/' + this.implodeParams (path, params);
const query = this.omit (params, this.extractParams (path));
if (api === 'public') {
if (Object.keys (query).length) {
url += '?' + this.urlencode (query);
}
} else {
this.checkRequiredCredentials ();
const nonce = this.nonce ().toString ();
let queryString = '';
if (method === 'GET') {
if (Object.keys (query).length) {
url += '?' + this.urlencode (this.keysort (query));
}
} else {
if (Object.keys (query).length) {
body = this.urlencode (this.keysort (query));
queryString = body;
}
}
const auth = nonce + url + queryString;
headers = {
'Content-Type': 'application/x-www-form-urlencoded',
'ACCESS-KEY': this.apiKey,
'ACCESS-NONCE': nonce,
'ACCESS-SIGNATURE': this.hmac (this.encode (auth), this.encode (this.secret)),
};
}
return { 'url': url, 'method': method, 'body': body, 'headers': headers };
}
async request (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
const response = await this.fetch2 (path, api, method, params, headers, body);
if (api === 'public') {
return response;
}
if ('success' in response) {
if (response['success']) {
return response;
}
}
throw new ExchangeError (this.id + ' ' + this.json (response));
}
};