ccxt-bybit
Version:
A JavaScript / Python / PHP cryptocurrency trading library with support for 130+ exchanges
450 lines (430 loc) • 18 kB
JavaScript
'use strict';
// ---------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { ExchangeError, ExchangeNotAvailable, AuthenticationError, BadRequest, PermissionDenied, InvalidAddress } = 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://apidocs.bithumb.com',
'fees': 'https://en.bithumb.com/customer_support/info_fee',
},
'api': {
'public': {
'get': [
'ticker/{currency}',
'ticker/all',
'orderbook/{currency}',
'orderbook/all',
'transaction_history/{currency}',
'transaction_history/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': 0.25 / 100,
'taker': 0.25 / 100,
},
},
'exceptions': {
'Bad Request(SSL)': BadRequest,
'Bad Request(Bad Method)': BadRequest,
'Bad Request.(Auth Data)': AuthenticationError, // { "status": "5100", "message": "Bad Request.(Auth Data)" }
'Not Member': AuthenticationError,
'Invalid Apikey': AuthenticationError, // {"status":"5300","message":"Invalid Apikey"}
'Method Not Allowed.(Access IP)': PermissionDenied,
'Method Not Allowed.(BTC Adress)': InvalidAddress,
'Method Not Allowed.(Access)': PermissionDenied,
'Database Fail': ExchangeNotAvailable,
'Invalid Parameter': BadRequest,
'5600': ExchangeError,
'Unknown Error': ExchangeError,
'After May 23th, recent_transactions is no longer, hence users will not be able to connect to recent_transactions': ExchangeError, // {"status":"5100","message":"After May 23th, recent_transactions is no longer, hence users will not be able to connect to recent_transactions"}
},
});
}
async fetchMarkets (params = {}) {
const response = await this.publicGetTickerAll (params);
const data = this.safeValue (response, 'data');
const currencyIds = Object.keys (data);
const result = [];
for (let i = 0; i < currencyIds.length; i++) {
const currencyId = currencyIds[i];
if (currencyId === 'date') {
continue;
}
const market = data[currencyId];
const base = currencyId;
const quote = 'KRW';
const symbol = currencyId + '/' + quote;
let active = true;
if (Array.isArray (market)) {
const numElements = market.length;
if (numElements === 0) {
active = false;
}
}
result.push ({
'id': currencyId,
'symbol': symbol,
'base': base,
'quote': quote,
'info': market,
'active': active,
'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 ();
const request = {
'currency': 'ALL',
};
const response = await this.privatePostInfoBalance (this.extend (request, params));
const result = { 'info': response };
const balances = this.safeValue (response, 'data');
const codes = Object.keys (this.currencies);
for (let i = 0; i < codes.length; i++) {
const code = codes[i];
const account = this.account ();
const currency = this.currency (code);
const lowerCurrencyId = this.safeStringLower (currency, 'id');
account['total'] = this.safeFloat (balances, 'total_' + lowerCurrencyId);
account['used'] = this.safeFloat (balances, 'in_use_' + lowerCurrencyId);
account['free'] = this.safeFloat (balances, 'available_' + lowerCurrencyId);
result[code] = account;
}
return this.parseBalance (result);
}
async fetchOrderBook (symbol, limit = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'currency': market['base'],
};
if (limit !== undefined) {
request['count'] = limit; // max = 50
}
const response = await this.publicGetOrderbookCurrency (this.extend (request, params));
const orderbook = this.safeValue (response, 'data');
const timestamp = this.safeInteger (orderbook, 'timestamp');
return this.parseOrderBook (orderbook, timestamp, 'bids', 'asks', 'price', 'quantity');
}
parseTicker (ticker, market = undefined) {
const timestamp = this.safeInteger (ticker, 'date');
let symbol = undefined;
if (market !== undefined) {
symbol = market['symbol'];
}
const open = this.safeFloat (ticker, 'opening_price');
const close = this.safeFloat (ticker, 'closing_price');
let change = undefined;
let percentage = undefined;
let average = undefined;
if ((close !== undefined) && (open !== undefined)) {
change = close - open;
if (open > 0) {
percentage = change / open * 100;
}
average = this.sum (open, close) / 2;
}
const baseVolume = this.safeFloat (ticker, 'units_traded_24H');
const quoteVolume = this.safeFloat (ticker, 'acc_trade_value_24H');
let vwap = undefined;
if (quoteVolume !== undefined && baseVolume !== undefined) {
vwap = quoteVolume / baseVolume;
}
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': percentage,
'average': average,
'baseVolume': baseVolume,
'quoteVolume': quoteVolume,
'info': ticker,
};
}
async fetchTickers (symbols = undefined, params = {}) {
await this.loadMarkets ();
const response = await this.publicGetTickerAll (params);
const result = {};
const timestamp = this.safeInteger (response['data'], 'date');
const tickers = this.omit (response['data'], 'date');
const ids = Object.keys (tickers);
for (let i = 0; i < ids.length; i++) {
const 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'];
}
const ticker = tickers[id];
const isArray = Array.isArray (ticker);
if (!isArray) {
ticker['date'] = timestamp;
result[symbol] = this.parseTicker (ticker, market);
}
}
return result;
}
async fetchTicker (symbol, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'currency': market['base'],
};
const response = await this.publicGetTickerCurrency (this.extend (request, params));
return this.parseTicker (response['data'], market);
}
parseTrade (trade, market = undefined) {
// a workaround for their bug in date format, hours are not 0-padded
const parts = trade['transaction_date'].split (' ');
const transaction_date = parts[0];
let transaction_time = parts[1];
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)
const type = undefined;
let side = this.safeString (trade, 'type');
side = (side === 'ask') ? 'sell' : 'buy';
const id = this.safeString (trade, 'cont_no');
let symbol = undefined;
if (market !== undefined) {
symbol = market['symbol'];
}
const price = this.safeFloat (trade, 'price');
const amount = this.safeFloat (trade, 'units_traded');
let cost = undefined;
if (amount !== undefined) {
if (price !== undefined) {
cost = price * amount;
}
}
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['base'],
};
if (limit === undefined) {
request['count'] = limit; // default 20, max 100
}
const response = await this.publicGetTransactionHistoryCurrency (this.extend (request, params));
return this.parseTrades (response['data'], market, since, limit);
}
async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
await this.loadMarkets ();
const 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);
}
const response = await this[method] (this.extend (request, params));
const id = this.safeString (response, 'order_id');
return {
'info': response,
'id': id,
};
}
async cancelOrder (id, symbol = undefined, params = {}) {
const 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');
}
const currency = this.safeString (params, 'currency');
if (currency === undefined) {
throw new ExchangeError (this.id + ' cancelOrder requires a `currency` parameter (a currency id)');
}
const side = (params['side'] === 'buy') ? 'bid' : 'ask';
params = this.omit (params, [ 'side', 'currency' ]);
const request = {
'order_id': id,
'type': side,
'currency': currency,
};
return await this.privatePostTradeCancel (this.extend (request, params));
}
async withdraw (code, amount, address, tag = undefined, params = {}) {
this.checkAddress (address);
await this.loadMarkets ();
const currency = this.currency (code);
const request = {
'units': amount,
'address': address,
'currency': currency['id'],
};
if (currency === 'XRP' || currency === 'XMR') {
const destination = this.safeString (params, 'destination');
if ((tag === undefined) && (destination === undefined)) {
throw new ExchangeError (this.id + ' ' + code + ' withdraw() requires a tag argument or an extra destination param');
} else if (tag !== undefined) {
request['destination'] = tag;
}
}
const 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) {
const endpoint = '/' + this.implodeParams (path, params);
let url = this.urls['api'][api] + endpoint;
const 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));
const nonce = this.nonce ().toString ();
const auth = endpoint + "\0" + body + "\0" + nonce; // eslint-disable-line quotes
const signature = this.hmac (this.encode (auth), this.encode (this.secret), 'sha512');
const 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 };
}
handleErrors (httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody) {
if (response === undefined) {
return; // fallback to default error handler
}
if ('status' in response) {
//
// {"status":"5100","message":"After May 23th, recent_transactions is no longer, hence users will not be able to connect to recent_transactions"}
//
const status = this.safeString (response, 'status');
const message = this.safeString (response, 'message');
if (status !== undefined) {
if (status === '0000') {
return; // no error
}
const feedback = this.id + ' ' + body;
this.throwExactlyMatchedException (this.exceptions, status, feedback);
this.throwExactlyMatchedException (this.exceptions, message, feedback);
throw new ExchangeError (feedback);
}
}
}
async request (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
const 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;
}
};