@jmparsons/ccxt
Version:
A JavaScript / Python / PHP cryptocurrency trading library with support for 100+ exchanges
352 lines (333 loc) • 13.5 kB
JavaScript
'use strict';
// ---------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { ExchangeError } = require ('./base/errors');
// ---------------------------------------------------------------------------
module.exports = class bithumb extends Exchange {
describe () {
return this.deepExtend (super.describe (), {
'id': 'bithumb',
'name': 'Bithumb',
'countries': 'KR', // South Korea
'rateLimit': 500,
'has': {
'CORS': true,
'fetchTickers': true,
'withdraw': true,
},
'urls': {
'logo': 'https://user-images.githubusercontent.com/1294454/30597177-ea800172-9d5e-11e7-804c-b9d4fa9b56b0.jpg',
'api': {
'public': 'https://api.bithumb.com/public',
'private': 'https://api.bithumb.com',
},
'www': 'https://www.bithumb.com',
'doc': 'https://www.bithumb.com/u1/US127',
},
'api': {
'public': {
'get': [
'ticker/{currency}',
'ticker/all',
'orderbook/{currency}',
'orderbook/all',
'recent_transactions/{currency}',
'recent_transactions/all',
],
},
'private': {
'post': [
'info/account',
'info/balance',
'info/wallet_address',
'info/ticker',
'info/orders',
'info/user_transactions',
'trade/place',
'info/order_detail',
'trade/cancel',
'trade/btc_withdrawal',
'trade/krw_deposit',
'trade/krw_withdrawal',
'trade/market_buy',
'trade/market_sell',
],
},
},
'fees': {
'trading': {
'maker': 0.15 / 100,
'taker': 0.15 / 100,
},
},
});
}
async fetchMarkets () {
let markets = await this.publicGetTickerAll ();
let currencies = Object.keys (markets['data']);
let result = [];
for (let i = 0; i < currencies.length; i++) {
let id = currencies[i];
if (id !== 'date') {
let market = markets['data'][id];
let base = id;
let quote = 'KRW';
let symbol = id + '/' + quote;
result.push ({
'id': id,
'symbol': symbol,
'base': base,
'quote': quote,
'info': market,
'lot': undefined,
'active': true,
'precision': {
'amount': undefined,
'price': undefined,
},
'limits': {
'amount': {
'min': undefined,
'max': undefined,
},
'price': {
'min': undefined,
'max': undefined,
},
'cost': {
'min': undefined,
'max': undefined,
},
},
});
}
}
return result;
}
async fetchBalance (params = {}) {
await this.loadMarkets ();
let response = await this.privatePostInfoBalance (this.extend ({
'currency': 'ALL',
}, params));
let result = { 'info': response };
let balances = response['data'];
let currencies = Object.keys (this.currencies);
for (let i = 0; i < currencies.length; i++) {
let currency = currencies[i];
let account = this.account ();
let lowercase = currency.toLowerCase ();
account['total'] = this.safeFloat (balances, 'total_' + lowercase);
account['used'] = this.safeFloat (balances, 'in_use_' + lowercase);
account['free'] = this.safeFloat (balances, 'available_' + lowercase);
result[currency] = account;
}
return this.parseBalance (result);
}
async fetchOrderBook (symbol, limit = undefined, params = {}) {
await this.loadMarkets ();
let market = this.market (symbol);
let request = {
'currency': market['base'],
};
if (typeof limit !== 'undefined')
request['count'] = limit; // max = 50
let response = await this.publicGetOrderbookCurrency (this.extend (request, params));
let orderbook = response['data'];
let timestamp = parseInt (orderbook['timestamp']);
return this.parseOrderBook (orderbook, timestamp, 'bids', 'asks', 'price', 'quantity');
}
parseTicker (ticker, market = undefined) {
let timestamp = parseInt (ticker['date']);
let symbol = undefined;
if (market)
symbol = market['symbol'];
let open = this.safeFloat (ticker, 'opening_price');
let close = this.safeFloat (ticker, 'closing_price');
let change = close - open;
let vwap = this.safeFloat (ticker, 'average_price');
let baseVolume = this.safeFloat (ticker, 'volume_1day');
return {
'symbol': symbol,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'high': this.safeFloat (ticker, 'max_price'),
'low': this.safeFloat (ticker, 'min_price'),
'bid': this.safeFloat (ticker, 'buy_price'),
'bidVolume': undefined,
'ask': this.safeFloat (ticker, 'sell_price'),
'askVolume': undefined,
'vwap': vwap,
'open': open,
'close': close,
'last': close,
'previousClose': undefined,
'change': change,
'percentage': change / open * 100,
'average': this.sum (open, close) / 2,
'baseVolume': baseVolume,
'quoteVolume': baseVolume * vwap,
'info': ticker,
};
}
async fetchTickers (symbols = undefined, params = {}) {
await this.loadMarkets ();
let response = await this.publicGetTickerAll (params);
let result = {};
let timestamp = response['data']['date'];
let tickers = this.omit (response['data'], 'date');
let ids = Object.keys (tickers);
for (let i = 0; i < ids.length; i++) {
let id = ids[i];
let symbol = id;
let market = undefined;
if (id in this.markets_by_id) {
market = this.markets_by_id[id];
symbol = market['symbol'];
}
let ticker = tickers[id];
ticker['date'] = timestamp;
result[symbol] = this.parseTicker (ticker, market);
}
return result;
}
async fetchTicker (symbol, params = {}) {
await this.loadMarkets ();
let market = this.market (symbol);
let response = await this.publicGetTickerCurrency (this.extend ({
'currency': market['base'],
}, params));
return this.parseTicker (response['data'], market);
}
parseTrade (trade, market) {
// a workaround for their bug in date format, hours are not 0-padded
let [ transaction_date, transaction_time ] = trade['transaction_date'].split (' ');
if (transaction_time.length < 8)
transaction_time = '0' + transaction_time;
let timestamp = this.parse8601 (transaction_date + ' ' + transaction_time);
timestamp -= 9 * 3600000; // they report UTC + 9 hours (server in Korean timezone)
let side = (trade['type'] === 'ask') ? 'sell' : 'buy';
return {
'id': undefined,
'info': trade,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'symbol': market['symbol'],
'order': undefined,
'type': undefined,
'side': side,
'price': this.safeFloat (trade, 'price'),
'amount': this.safeFloat (trade, 'units_traded'),
};
}
async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
let market = this.market (symbol);
let response = await this.publicGetRecentTransactionsCurrency (this.extend ({
'currency': market['base'],
'count': 100, // max = 100
}, params));
return this.parseTrades (response['data'], market, since, limit);
}
async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
await this.loadMarkets ();
let market = this.market (symbol);
let request = undefined;
let method = 'privatePostTrade';
if (type === 'limit') {
request = {
'order_currency': market['id'],
'Payment_currency': market['quote'],
'units': amount,
'price': price,
'type': (side === 'buy') ? 'bid' : 'ask',
};
method += 'Place';
} else if (type === 'market') {
request = {
'currency': market['id'],
'units': amount,
};
method += 'Market' + this.capitalize (side);
}
let response = await this[method] (this.extend (request, params));
let id = undefined;
if ('order_id' in response) {
if (response['order_id'])
id = response['order_id'].toString ();
}
return {
'info': response,
'id': id,
};
}
async cancelOrder (id, symbol = undefined, params = {}) {
let side_in_params = ('side' in params);
if (!side_in_params)
throw new ExchangeError (this.id + ' cancelOrder requires a side parameter (sell or buy) and a currency parameter');
let currency = ('currency' in params);
if (!currency)
throw new ExchangeError (this.id + ' cancelOrder requires a currency parameter');
let side = (params['side'] === 'buy') ? 'bid' : 'ask';
return await this.privatePostTradeCancel ({
'order_id': id,
'type': side,
'currency': params['currency'],
});
}
async withdraw (currency, amount, address, tag = undefined, params = {}) {
this.checkAddress (address);
let request = {
'units': amount,
'address': address,
'currency': currency,
};
if (currency === 'XRP' || currency === 'XMR') {
let destination = ('destination' in params);
if (!destination)
throw new ExchangeError (this.id + ' ' + currency + ' withdraw requires an extra destination param');
}
let response = await this.privatePostTradeBtcWithdrawal (this.extend (request, params));
return {
'info': response,
'id': undefined,
};
}
nonce () {
return this.milliseconds ();
}
sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
let endpoint = '/' + this.implodeParams (path, params);
let url = this.urls['api'][api] + endpoint;
let query = this.omit (params, this.extractParams (path));
if (api === 'public') {
if (Object.keys (query).length)
url += '?' + this.urlencode (query);
} else {
this.checkRequiredCredentials ();
body = this.urlencode (this.extend ({
'endpoint': endpoint,
}, query));
let nonce = this.nonce ().toString ();
let auth = endpoint + '\0' + body + '\0' + nonce;
let signature = this.hmac (this.encode (auth), this.encode (this.secret), 'sha512');
let signature64 = this.decode (this.stringToBase64 (this.encode (signature)));
headers = {
'Accept': 'application/json',
'Content-Type': 'application/x-www-form-urlencoded',
'Api-Key': this.apiKey,
'Api-Sign': signature64.toString (),
'Api-Nonce': nonce,
};
}
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 ('status' in response) {
if (response['status'] === '0000')
return response;
throw new ExchangeError (this.id + ' ' + this.json (response));
}
return response;
}
};