ccxt-js
Version:
The node.js portion of original ccxt cryptocurrency trading library with support for 100+ exchanges. It reduces the size of the library from 40MB to 8MB
672 lines (644 loc) • 26 kB
JavaScript
'use strict';
// ---------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { ExchangeError, AuthenticationError, NotSupported, InvalidOrder, OrderNotFound, ExchangeNotAvailable, DDoSProtection, InsufficientFunds } = require ('./base/errors');
// ---------------------------------------------------------------------------
module.exports = class livecoin extends Exchange {
describe () {
return this.deepExtend (super.describe (), {
'id': 'livecoin',
'name': 'LiveCoin',
'countries': [ 'US', 'UK', 'RU' ],
'rateLimit': 1000,
'userAgent': this.userAgents['chrome'],
'has': {
'fetchDepositAddress': true,
'CORS': false,
'fetchTickers': true,
'fetchCurrencies': true,
'fetchTradingFees': true,
'fetchOrders': true,
'fetchOrder': true,
'fetchOpenOrders': true,
'fetchClosedOrders': true,
'withdraw': true,
},
'urls': {
'logo': 'https://user-images.githubusercontent.com/1294454/27980768-f22fc424-638a-11e7-89c9-6010a54ff9be.jpg',
'api': 'https://api.livecoin.net',
'www': 'https://www.livecoin.net',
'doc': 'https://www.livecoin.net/api?lang=en',
},
'api': {
'public': {
'get': [
'exchange/all/order_book',
'exchange/last_trades',
'exchange/maxbid_minask',
'exchange/order_book',
'exchange/restrictions',
'exchange/ticker', // omit params to get all tickers at once
'info/coinInfo',
],
},
'private': {
'get': [
'exchange/client_orders',
'exchange/order',
'exchange/trades',
'exchange/commission',
'exchange/commissionCommonInfo',
'payment/balances',
'payment/balance',
'payment/get/address',
'payment/history/size',
'payment/history/transactions',
],
'post': [
'exchange/buylimit',
'exchange/buymarket',
'exchange/cancellimit',
'exchange/selllimit',
'exchange/sellmarket',
'payment/out/capitalist',
'payment/out/card',
'payment/out/coin',
'payment/out/okpay',
'payment/out/payeer',
'payment/out/perfectmoney',
'payment/voucher/amount',
'payment/voucher/make',
'payment/voucher/redeem',
],
},
},
'fees': {
'trading': {
'tierBased': false,
'percentage': true,
'maker': 0.18 / 100,
'taker': 0.18 / 100,
},
},
'commonCurrencies': {
'CPC': 'CapriCoin',
'CRC': 'CryCash',
'EDR': 'E-Dinar Coin', // conflicts with EDR for Endor Protocol and EDRCoin
'eETT': 'EETT',
'FirstBlood': '1ST',
'FORTYTWO': '42',
'ORE': 'Orectic',
'RUR': 'RUB',
'SCT': 'SpaceCoin',
'TPI': 'ThaneCoin',
'wETT': 'WETT',
'XBT': 'Bricktox',
},
'exceptions': {
'1': ExchangeError,
'10': AuthenticationError,
'100': ExchangeError, // invalid parameters
'101': AuthenticationError,
'102': AuthenticationError,
'103': InvalidOrder, // invalid currency
'104': InvalidOrder, // invalid amount
'105': InvalidOrder, // unable to block funds
'11': AuthenticationError,
'12': AuthenticationError,
'2': AuthenticationError, // "User not found"
'20': AuthenticationError,
'30': AuthenticationError,
'31': NotSupported,
'32': ExchangeError,
'429': DDoSProtection,
'503': ExchangeNotAvailable,
},
});
}
async fetchMarkets () {
let markets = await this.publicGetExchangeTicker ();
let restrictions = await this.publicGetExchangeRestrictions ();
let restrictionsById = this.indexBy (restrictions['restrictions'], 'currencyPair');
let result = [];
for (let p = 0; p < markets.length; p++) {
let market = markets[p];
let id = market['symbol'];
let symbol = id;
let [ baseId, quoteId ] = symbol.split ('/');
let base = this.commonCurrencyCode (baseId);
let quote = this.commonCurrencyCode (quoteId);
let coinRestrictions = this.safeValue (restrictionsById, symbol);
let precision = {
'price': 5,
'amount': 8,
'cost': 8,
};
let limits = {
'amount': {
'min': Math.pow (10, -precision['amount']),
'max': Math.pow (10, precision['amount']),
},
};
if (coinRestrictions) {
precision['price'] = this.safeInteger (coinRestrictions, 'priceScale', 5);
limits['amount']['min'] = this.safeFloat (coinRestrictions, 'minLimitQuantity', limits['amount']['min']);
}
limits['price'] = {
'min': Math.pow (10, -precision['price']),
'max': Math.pow (10, precision['price']),
};
result.push ({
'id': id,
'symbol': symbol,
'base': base,
'quote': quote,
'baseId': baseId,
'quoteId': quoteId,
'active': true,
'precision': precision,
'limits': limits,
'info': market,
});
}
return result;
}
async fetchCurrencies (params = {}) {
let response = await this.publicGetInfoCoinInfo (params);
let currencies = response['info'];
let result = {};
for (let i = 0; i < currencies.length; i++) {
let currency = currencies[i];
let id = currency['symbol'];
// todo: will need to rethink the fees
// to add support for multiple withdrawal/deposit methods and
// differentiated fees for each particular method
let code = this.commonCurrencyCode (id);
let precision = 8; // default precision, todo: fix "magic constants"
let active = (currency['walletStatus'] === 'normal');
result[code] = {
'id': id,
'code': code,
'info': currency,
'name': currency['name'],
'active': active,
'fee': currency['withdrawFee'], // todo: redesign
'precision': precision,
'limits': {
'amount': {
'min': currency['minOrderAmount'],
'max': Math.pow (10, precision),
},
'price': {
'min': Math.pow (10, -precision),
'max': Math.pow (10, precision),
},
'cost': {
'min': currency['minOrderAmount'],
'max': undefined,
},
'withdraw': {
'min': currency['minWithdrawAmount'],
'max': Math.pow (10, precision),
},
'deposit': {
'min': currency['minDepositAmount'],
'max': undefined,
},
},
};
}
result = this.appendFiatCurrencies (result);
return result;
}
appendFiatCurrencies (result) {
let precision = 8;
let defaults = {
'info': undefined,
'active': true,
'fee': undefined,
'precision': precision,
'limits': {
'withdraw': { 'min': undefined, 'max': undefined },
'deposit': { 'min': undefined, 'max': undefined },
'amount': { 'min': undefined, 'max': undefined },
'cost': { 'min': undefined, 'max': undefined },
'price': {
'min': Math.pow (10, -precision),
'max': Math.pow (10, precision),
},
},
};
let currencies = [
{ 'id': 'USD', 'code': 'USD', 'name': 'US Dollar' },
{ 'id': 'EUR', 'code': 'EUR', 'name': 'Euro' },
// { 'id': 'RUR', 'code': 'RUB', 'name': 'Russian ruble' },
];
currencies.push ({
'id': 'RUR',
'code': this.commonCurrencyCode ('RUR'),
'name': 'Russian ruble',
});
for (let i = 0; i < currencies.length; i++) {
let currency = currencies[i];
let code = currency['code'];
result[code] = this.extend (defaults, currency);
}
return result;
}
async fetchBalance (params = {}) {
await this.loadMarkets ();
let balances = await this.privateGetPaymentBalances ();
let result = { 'info': balances };
for (let b = 0; b < balances.length; b++) {
let balance = balances[b];
let currency = balance['currency'];
let account = undefined;
if (currency in result)
account = result[currency];
else
account = this.account ();
if (balance['type'] === 'total')
account['total'] = parseFloat (balance['value']);
if (balance['type'] === 'available')
account['free'] = parseFloat (balance['value']);
if (balance['type'] === 'trade')
account['used'] = parseFloat (balance['value']);
result[currency] = account;
}
return this.parseBalance (result);
}
async fetchTradingFees (params = {}) {
await this.loadMarkets ();
let response = await this.privateGetExchangeCommissionCommonInfo (params);
const commission = this.safeFloat (response, 'commission');
return {
'info': response,
'maker': commission,
'taker': commission,
};
}
async fetchOrderBook (symbol, limit = undefined, params = {}) {
await this.loadMarkets ();
let request = {
'currencyPair': this.marketId (symbol),
'groupByPrice': 'false',
};
if (typeof limit !== 'undefined')
request['depth'] = limit; // 100
let orderbook = await this.publicGetExchangeOrderBook (this.extend (request, params));
let timestamp = orderbook['timestamp'];
return this.parseOrderBook (orderbook, timestamp);
}
parseTicker (ticker, market = undefined) {
let timestamp = this.milliseconds ();
let symbol = undefined;
if (market)
symbol = market['symbol'];
let vwap = this.safeFloat (ticker, 'vwap');
let baseVolume = this.safeFloat (ticker, 'volume');
let quoteVolume = baseVolume * vwap;
let last = this.safeFloat (ticker, 'last');
return {
'symbol': symbol,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'high': this.safeFloat (ticker, 'high'),
'low': this.safeFloat (ticker, 'low'),
'bid': this.safeFloat (ticker, 'best_bid'),
'bidVolume': undefined,
'ask': this.safeFloat (ticker, 'best_ask'),
'askVolume': undefined,
'vwap': this.safeFloat (ticker, 'vwap'),
'open': undefined,
'close': last,
'last': last,
'previousClose': undefined,
'change': undefined,
'percentage': undefined,
'average': undefined,
'baseVolume': baseVolume,
'quoteVolume': quoteVolume,
'info': ticker,
};
}
async fetchTickers (symbols = undefined, params = {}) {
await this.loadMarkets ();
let response = await this.publicGetExchangeTicker (params);
let tickers = this.indexBy (response, 'symbol');
let ids = Object.keys (tickers);
let result = {};
for (let i = 0; i < ids.length; i++) {
let id = ids[i];
let market = this.markets_by_id[id];
let symbol = market['symbol'];
let ticker = tickers[id];
result[symbol] = this.parseTicker (ticker, market);
}
return result;
}
async fetchTicker (symbol, params = {}) {
await this.loadMarkets ();
let market = this.market (symbol);
let ticker = await this.publicGetExchangeTicker (this.extend ({
'currencyPair': market['id'],
}, params));
return this.parseTicker (ticker, market);
}
parseTrade (trade, market) {
let timestamp = trade['time'] * 1000;
return {
'info': trade,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'symbol': market['symbol'],
'id': trade['id'].toString (),
'order': undefined,
'type': undefined,
'side': trade['type'].toLowerCase (),
'price': trade['price'],
'amount': trade['quantity'],
};
}
async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
let market = this.market (symbol);
let response = await this.publicGetExchangeLastTrades (this.extend ({
'currencyPair': market['id'],
}, params));
return this.parseTrades (response, market, since, limit);
}
async fetchOrder (id, symbol = undefined, params = {}) {
await this.loadMarkets ();
let request = {
'orderId': id,
};
let response = await this.privateGetExchangeOrder (this.extend (request, params));
return this.parseOrder (response);
}
parseOrderStatus (status) {
const statuses = {
'OPEN': 'open',
'PARTIALLY_FILLED': 'open',
'EXECUTED': 'closed',
'CANCELLED': 'canceled',
'PARTIALLY_FILLED_AND_CANCELLED': 'canceled',
};
if (status in statuses)
return statuses[status];
return status;
}
parseOrder (order, market = undefined) {
let timestamp = undefined;
let datetime = undefined;
if ('lastModificationTime' in order) {
timestamp = this.safeString (order, 'lastModificationTime');
if (typeof timestamp !== 'undefined') {
if (timestamp.indexOf ('T') >= 0) {
timestamp = this.parse8601 (timestamp);
} else {
timestamp = this.safeInteger (order, 'lastModificationTime');
}
}
}
if (timestamp) {
datetime = this.iso8601 (timestamp);
}
// TODO currently not supported by livecoin
// let trades = this.parseTrades (order['trades'], market, since, limit);
let trades = undefined;
let status = this.safeString (order, 'status');
status = this.safeString (order, 'orderStatus', status);
status = this.parseOrderStatus (status);
let symbol = undefined;
if (typeof market === 'undefined') {
let marketId = this.safeString (order, 'currencyPair');
marketId = this.safeString (order, 'symbol', marketId);
if (marketId in this.markets_by_id)
market = this.markets_by_id[marketId];
}
let type = undefined;
let side = undefined;
if ('type' in order) {
let lowercaseType = order['type'].toLowerCase ();
let orderType = lowercaseType.split ('_');
type = orderType[0];
side = orderType[1];
}
let price = this.safeFloat (order, 'price');
// of the next two lines the latter overrides the former, if present in the order structure
let remaining = this.safeFloat (order, 'remainingQuantity');
remaining = this.safeFloat (order, 'remaining_quantity', remaining);
let amount = this.safeFloat (order, 'quantity', remaining);
let filled = undefined;
if (typeof remaining !== 'undefined') {
filled = amount - remaining;
}
let cost = undefined;
if (typeof filled !== 'undefined' && typeof price !== 'undefined') {
cost = filled * price;
}
const feeRate = this.safeFloat (order, 'commission_rate');
let feeCost = undefined;
if (typeof cost !== 'undefined' && typeof feeRate !== 'undefined') {
feeCost = cost * feeRate;
}
let feeCurrency = undefined;
if (typeof market !== 'undefined') {
symbol = market['symbol'];
feeCurrency = market['quote'];
}
return {
'info': order,
'id': order['id'],
'timestamp': timestamp,
'datetime': datetime,
'lastTradeTimestamp': undefined,
'status': status,
'symbol': symbol,
'type': type,
'side': side,
'price': price,
'amount': amount,
'cost': cost,
'filled': filled,
'remaining': remaining,
'trades': trades,
'fee': {
'cost': feeCost,
'currency': feeCurrency,
'rate': feeRate,
},
};
}
async fetchOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
let market = undefined;
let request = {};
if (typeof symbol !== 'undefined') {
market = this.market (symbol);
request['currencyPair'] = market['id'];
}
if (typeof since !== 'undefined')
request['issuedFrom'] = parseInt (since);
if (typeof limit !== 'undefined')
request['endRow'] = limit - 1;
let response = await this.privateGetExchangeClientOrders (this.extend (request, params));
let result = [];
let rawOrders = [];
if (response['data'])
rawOrders = response['data'];
for (let i = 0; i < rawOrders.length; i++) {
let order = rawOrders[i];
result.push (this.parseOrder (order, market));
}
return result;
}
async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
let result = await this.fetchOrders (symbol, since, limit, this.extend ({
'openClosed': 'OPEN',
}, params));
return result;
}
async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
let result = await this.fetchOrders (symbol, since, limit, this.extend ({
'openClosed': 'CLOSED',
}, params));
return result;
}
async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
await this.loadMarkets ();
let method = 'privatePostExchange' + this.capitalize (side) + type;
let market = this.market (symbol);
let order = {
'quantity': this.amountToPrecision (symbol, amount),
'currencyPair': market['id'],
};
if (type === 'limit')
order['price'] = this.priceToPrecision (symbol, price);
let response = await this[method] (this.extend (order, params));
const result = {
'info': response,
'id': response['orderId'].toString (),
};
const success = this.safeValue (response, 'success');
if (success) {
result['status'] = 'open';
}
return result;
}
async cancelOrder (id, symbol = undefined, params = {}) {
if (typeof symbol === 'undefined')
throw new ExchangeError (this.id + ' cancelOrder requires a symbol argument');
await this.loadMarkets ();
let market = this.market (symbol);
let currencyPair = market['id'];
let response = await this.privatePostExchangeCancellimit (this.extend ({
'orderId': id,
'currencyPair': currencyPair,
}, params));
let message = this.safeString (response, 'message', this.json (response));
if ('success' in response) {
if (!response['success']) {
throw new InvalidOrder (message);
} else if ('cancelled' in response) {
if (response['cancelled']) {
return {
'status': 'canceled',
'info': response,
};
} else {
throw new OrderNotFound (message);
}
}
}
throw new ExchangeError (this.id + ' cancelOrder() failed: ' + this.json (response));
}
async withdraw (currency, amount, address, tag = undefined, params = {}) {
// Sometimes the response with be { key: null } for all keys.
// An example is if you attempt to withdraw more than is allowed when withdrawal fees are considered.
await this.loadMarkets ();
this.checkAddress (address);
let wallet = address;
if (typeof tag !== 'undefined')
wallet += '::' + tag;
let withdrawal = {
'amount': this.truncate (amount, this.currencies[currency]['precision']), // throws an error when amount is too precise
'currency': this.commonCurrencyCode (currency),
'wallet': wallet,
};
let response = await this.privatePostPaymentOutCoin (this.extend (withdrawal, params));
let id = this.safeInteger (response, 'id');
if (typeof id === 'undefined')
throw new InsufficientFunds (this.id + ' insufficient funds to cover requested withdrawal amount post fees ' + this.json (response));
return {
'info': response,
'id': id,
};
}
async fetchDepositAddress (currency, params = {}) {
let request = {
'currency': currency,
};
let response = await this.privateGetPaymentGetAddress (this.extend (request, params));
let address = this.safeString (response, 'wallet');
let tag = undefined;
if (address.indexOf (':') >= 0) {
let parts = address.split (':');
address = parts[0];
tag = parts[2];
}
this.checkAddress (address);
return {
'currency': currency,
'address': address,
'tag': tag,
'info': response,
};
}
sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
let url = this.urls['api'] + '/' + path;
let query = this.urlencode (this.keysort (params));
if (method === 'GET') {
if (Object.keys (params).length) {
url += '?' + query;
}
}
if (api === 'private') {
this.checkRequiredCredentials ();
if (method === 'POST')
body = query;
let signature = this.hmac (this.encode (query), this.encode (this.secret), 'sha256');
headers = {
'Api-Key': this.apiKey,
'Sign': signature.toUpperCase (),
'Content-Type': 'application/x-www-form-urlencoded',
};
}
return { 'url': url, 'method': method, 'body': body, 'headers': headers };
}
handleErrors (code, reason, url, method, headers, body) {
if (typeof body !== 'string')
return;
if (body[0] === '{') {
let response = JSON.parse (body);
if (code >= 300) {
let errorCode = this.safeString (response, 'errorCode');
if (errorCode in this.exceptions) {
let ExceptionClass = this.exceptions[errorCode];
throw new ExceptionClass (this.id + ' ' + body);
} else {
throw new ExchangeError (this.id + ' ' + body);
}
}
// returns status code 200 even if success === false
let success = this.safeValue (response, 'success', true);
if (!success) {
const message = this.safeString (response, 'message', '');
if (message.indexOf ('Cannot find order') >= 0) {
throw new OrderNotFound (this.id + ' ' + body);
}
throw new ExchangeError (this.id + ' ' + body);
}
}
}
};