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coinex.js
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'use strict';
// ---------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { ExchangeError, ArgumentsRequired, InsufficientFunds, OrderNotFound, InvalidOrder, AuthenticationError } = require ('./base/errors');
// ---------------------------------------------------------------------------
module.exports = class coinex extends Exchange {
describe () {
return this.deepExtend (super.describe (), {
'id': 'coinex',
'name': 'CoinEx',
'version': 'v1',
'countries': [ 'CN' ],
'rateLimit': 1000,
'has': {
'fetchTickers': true,
'fetchOHLCV': true,
'fetchOrder': true,
'fetchOpenOrders': true,
'fetchClosedOrders': true,
'fetchMyTrades': true,
'withdraw': true,
'fetchDeposits': true,
'fetchWithdrawals': true,
},
'timeframes': {
'1m': '1min',
'3m': '3min',
'5m': '5min',
'15m': '15min',
'30m': '30min',
'1h': '1hour',
'2h': '2hour',
'4h': '4hour',
'6h': '6hour',
'12h': '12hour',
'1d': '1day',
'3d': '3day',
'1w': '1week',
},
'urls': {
'logo': 'https://user-images.githubusercontent.com/1294454/38046312-0b450aac-32c8-11e8-99ab-bc6b136b6cc7.jpg',
'api': 'https://api.coinex.com',
'www': 'https://www.coinex.com',
'doc': 'https://github.com/coinexcom/coinex_exchange_api/wiki',
'fees': 'https://www.coinex.com/fees',
'referral': 'https://www.coinex.com/register?refer_code=yw5fz',
},
'api': {
'public': {
'get': [
'common/currency/rate',
'common/asset/config',
'market/info',
'market/list',
'market/ticker',
'market/ticker/all',
'market/depth',
'market/deals',
'market/kline',
],
},
'private': {
'get': [
'balance/coin/deposit',
'balance/coin/withdraw',
'balance/info',
'future/account',
'future/config',
'future/limitprice',
'future/loan/history',
'future/market',
'margin/account',
'margin/config',
'margin/loan/history',
'margin/market',
'order',
'order/deals',
'order/finished',
'order/finished/{id}',
'order/pending',
'order/status',
'order/status/batch',
'order/user/deals',
],
'post': [
'balance/coin/withdraw',
'future/flat',
'future/loan',
'future/transfer',
'margin/flat',
'margin/loan',
'margin/transfer',
'order/batchlimit',
'order/ioc',
'order/limit',
'order/market',
'sub_account/transfer',
],
'delete': [
'balance/coin/withdraw',
'order/pending/batch',
'order/pending',
],
},
},
'fees': {
'trading': {
'maker': 0.001,
'taker': 0.001,
},
'funding': {
'withdraw': {
'BCH': 0.0,
'BTC': 0.001,
'LTC': 0.001,
'ETH': 0.001,
'ZEC': 0.0001,
'DASH': 0.0001,
},
},
},
'limits': {
'amount': {
'min': 0.001,
'max': undefined,
},
},
'precision': {
'amount': 8,
'price': 8,
},
'options': {
'createMarketBuyOrderRequiresPrice': true,
},
});
}
async fetchMarkets (params = {}) {
const response = await this.publicGetMarketInfo (params);
//
// {
// "code": 0,
// "data": {
// "WAVESBTC": {
// "name": "WAVESBTC",
// "min_amount": "1",
// "maker_fee_rate": "0.001",
// "taker_fee_rate": "0.001",
// "pricing_name": "BTC",
// "pricing_decimal": 8,
// "trading_name": "WAVES",
// "trading_decimal": 8
// }
// }
// }
//
const markets = this.safeValue (response, 'data', {});
const result = [];
const keys = Object.keys (markets);
for (let i = 0; i < keys.length; i++) {
const key = keys[i];
const market = markets[key];
const id = this.safeString (market, 'name');
const baseId = this.safeString (market, 'trading_name');
const quoteId = this.safeString (market, 'pricing_name');
const base = this.safeCurrencyCode (baseId);
const quote = this.safeCurrencyCode (quoteId);
const symbol = base + '/' + quote;
const precision = {
'amount': this.safeInteger (market, 'trading_decimal'),
'price': this.safeInteger (market, 'pricing_decimal'),
};
const active = undefined;
result.push ({
'id': id,
'symbol': symbol,
'base': base,
'quote': quote,
'baseId': baseId,
'quoteId': quoteId,
'active': active,
'taker': this.safeFloat (market, 'taker_fee_rate'),
'maker': this.safeFloat (market, 'maker_fee_rate'),
'info': market,
'precision': precision,
'limits': {
'amount': {
'min': this.safeFloat (market, 'min_amount'),
'max': undefined,
},
'price': {
'min': Math.pow (10, -precision['price']),
'max': undefined,
},
},
});
}
return result;
}
parseTicker (ticker, market = undefined) {
const timestamp = this.safeInteger (ticker, 'date');
let symbol = undefined;
if (market !== undefined) {
symbol = market['symbol'];
}
ticker = this.safeValue (ticker, 'ticker', {});
const 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, 'buy'),
'bidVolume': undefined,
'ask': this.safeFloat (ticker, 'sell'),
'askVolume': undefined,
'vwap': undefined,
'open': undefined,
'close': last,
'last': last,
'previousClose': undefined,
'change': undefined,
'percentage': undefined,
'average': undefined,
'baseVolume': this.safeFloat2 (ticker, 'vol', 'volume'),
'quoteVolume': undefined,
'info': ticker,
};
}
async fetchTicker (symbol, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'market': market['id'],
};
const response = await this.publicGetMarketTicker (this.extend (request, params));
return this.parseTicker (response['data'], market);
}
async fetchTickers (symbols = undefined, params = {}) {
await this.loadMarkets ();
const response = await this.publicGetMarketTickerAll (params);
const data = this.safeValue (response, 'data');
const timestamp = this.safeInteger (data, 'date');
const tickers = this.safeValue (data, 'ticker');
const marketIds = Object.keys (tickers);
const result = {};
for (let i = 0; i < marketIds.length; i++) {
const marketId = marketIds[i];
let symbol = marketId;
let market = undefined;
if (marketId in this.markets_by_id) {
market = this.markets_by_id[marketId];
symbol = market['symbol'];
}
const ticker = {
'date': timestamp,
'ticker': tickers[marketId],
};
result[symbol] = this.parseTicker (ticker, market);
}
return result;
}
async fetchOrderBook (symbol, limit = 20, params = {}) {
await this.loadMarkets ();
if (limit === undefined) {
limit = 20; // default
}
const request = {
'market': this.marketId (symbol),
'merge': '0.0000000001',
'limit': limit.toString (),
};
const response = await this.publicGetMarketDepth (this.extend (request, params));
return this.parseOrderBook (response['data']);
}
parseTrade (trade, market = undefined) {
// this method parses both public and private trades
let timestamp = this.safeTimestamp (trade, 'create_time');
if (timestamp === undefined) {
timestamp = this.safeInteger (trade, 'date_ms');
}
const tradeId = this.safeString (trade, 'id');
const orderId = this.safeString (trade, 'order_id');
const price = this.safeFloat (trade, 'price');
const amount = this.safeFloat (trade, 'amount');
const marketId = this.safeString (trade, 'market');
market = this.safeValue (this.markets_by_id, marketId, market);
let symbol = undefined;
if (market !== undefined) {
symbol = market['symbol'];
}
let cost = this.safeFloat (trade, 'deal_money');
if (!cost) {
cost = parseFloat (this.costToPrecision (symbol, price * amount));
}
let fee = undefined;
const feeCost = this.safeFloat (trade, 'fee');
if (feeCost !== undefined) {
const feeCurrencyId = this.safeString (trade, 'fee_asset');
const feeCurrencyCode = this.safeCurrencyCode (feeCurrencyId);
fee = {
'cost': feeCost,
'currency': feeCurrencyCode,
};
}
const takerOrMaker = this.safeString (trade, 'role');
const side = this.safeString (trade, 'type');
return {
'info': trade,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'symbol': symbol,
'id': tradeId,
'order': orderId,
'type': undefined,
'side': side,
'takerOrMaker': takerOrMaker,
'price': price,
'amount': amount,
'cost': cost,
'fee': fee,
};
}
async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'market': market['id'],
};
const response = await this.publicGetMarketDeals (this.extend (request, params));
return this.parseTrades (response['data'], market, since, limit);
}
parseOHLCV (ohlcv, market = undefined, timeframe = '5m', since = undefined, limit = undefined) {
return [
ohlcv[0] * 1000,
parseFloat (ohlcv[1]),
parseFloat (ohlcv[3]),
parseFloat (ohlcv[4]),
parseFloat (ohlcv[2]),
parseFloat (ohlcv[5]),
];
}
async fetchOHLCV (symbol, timeframe = '5m', since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'market': market['id'],
'type': this.timeframes[timeframe],
};
const response = await this.publicGetMarketKline (this.extend (request, params));
return this.parseOHLCVs (response['data'], market, timeframe, since, limit);
}
async fetchBalance (params = {}) {
await this.loadMarkets ();
const response = await this.privateGetBalanceInfo (params);
//
// {
// "code": 0,
// "data": {
// "BCH": { # BCH account
// "available": "13.60109", # Available BCH
// "frozen": "0.00000" # Frozen BCH
// },
// "BTC": { # BTC account
// "available": "32590.16", # Available BTC
// "frozen": "7000.00" # Frozen BTC
// },
// "ETH": { # ETH account
// "available": "5.06000", # Available ETH
// "frozen": "0.00000" # Frozen ETH
// }
// },
// "message": "Ok"
// }
//
const result = { 'info': response };
const balances = this.safeValue (response, 'data');
const currencyIds = Object.keys (balances);
for (let i = 0; i < currencyIds.length; i++) {
const currencyId = currencyIds[i];
const code = this.safeCurrencyCode (currencyId);
const balance = this.safeValue (balances, currencyId, {});
const account = this.account ();
account['free'] = this.safeFloat (balance, 'available');
account['used'] = this.safeFloat (balance, 'frozen');
result[code] = account;
}
return this.parseBalance (result);
}
parseOrderStatus (status) {
const statuses = {
'not_deal': 'open',
'part_deal': 'open',
'done': 'closed',
'cancel': 'canceled',
};
return this.safeString (statuses, status, status);
}
parseOrder (order, market = undefined) {
//
// fetchOrder
//
// {
// "amount": "0.1",
// "asset_fee": "0.22736197736197736197",
// "avg_price": "196.85000000000000000000",
// "create_time": 1537270135,
// "deal_amount": "0.1",
// "deal_fee": "0",
// "deal_money": "19.685",
// "fee_asset": "CET",
// "fee_discount": "0.5",
// "id": 1788259447,
// "left": "0",
// "maker_fee_rate": "0",
// "market": "ETHUSDT",
// "order_type": "limit",
// "price": "170.00000000",
// "status": "done",
// "taker_fee_rate": "0.0005",
// "type": "sell",
// }
//
const timestamp = this.safeTimestamp (order, 'create_time');
const price = this.safeFloat (order, 'price');
const cost = this.safeFloat (order, 'deal_money');
const amount = this.safeFloat (order, 'amount');
const filled = this.safeFloat (order, 'deal_amount');
const average = this.safeFloat (order, 'avg_price');
let symbol = undefined;
const marketId = this.safeString (order, 'market');
market = this.safeValue (this.markets_by_id, marketId);
const feeCurrencyId = this.safeString (order, 'fee_asset');
let feeCurrency = this.safeCurrencyCode (feeCurrencyId);
if (market !== undefined) {
symbol = market['symbol'];
if (feeCurrency === undefined) {
feeCurrency = market['quote'];
}
}
const remaining = this.safeFloat (order, 'left');
const status = this.parseOrderStatus (this.safeString (order, 'status'));
const type = this.safeString (order, 'order_type');
const side = this.safeString (order, 'type');
return {
'id': this.safeString (order, 'id'),
'datetime': this.iso8601 (timestamp),
'timestamp': timestamp,
'lastTradeTimestamp': undefined,
'status': status,
'symbol': symbol,
'type': type,
'side': side,
'price': price,
'cost': cost,
'average': average,
'amount': amount,
'filled': filled,
'remaining': remaining,
'trades': undefined,
'fee': {
'currency': feeCurrency,
'cost': this.safeFloat (order, 'deal_fee'),
},
'info': order,
};
}
async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
amount = parseFloat (amount); // this line is deprecated
if (type === 'market') {
// for market buy it requires the amount of quote currency to spend
if (side === 'buy') {
if (this.options['createMarketBuyOrderRequiresPrice']) {
if (price === undefined) {
throw new InvalidOrder (this.id + " createOrder() requires the price argument with market buy orders to calculate total order cost (amount to spend), where cost = amount * price. Supply a price argument to createOrder() call if you want the cost to be calculated for you from price and amount, or, alternatively, add .options['createMarketBuyOrderRequiresPrice'] = false to supply the cost in the amount argument (the exchange-specific behaviour)");
} else {
price = parseFloat (price); // this line is deprecated
amount = amount * price;
}
}
}
}
await this.loadMarkets ();
const method = 'privatePostOrder' + this.capitalize (type);
const market = this.market (symbol);
const request = {
'market': market['id'],
'amount': this.amountToPrecision (symbol, amount),
'type': side,
};
if (type === 'limit') {
price = parseFloat (price); // this line is deprecated
request['price'] = this.priceToPrecision (symbol, price);
}
const response = await this[method] (this.extend (request, params));
const order = this.parseOrder (response['data'], market);
const id = order['id'];
this.orders[id] = order;
return order;
}
async cancelOrder (id, symbol = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'id': id,
'market': market['id'],
};
const response = await this.privateDeleteOrderPending (this.extend (request, params));
return this.parseOrder (response['data'], market);
}
async fetchOrder (id, symbol = undefined, params = {}) {
if (symbol === undefined) {
throw new ArgumentsRequired (this.id + ' fetchOrder requires a symbol argument');
}
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'id': id,
'market': market['id'],
};
const response = await this.privateGetOrder (this.extend (request, params));
//
// {
// "code": 0,
// "data": {
// "amount": "0.1",
// "asset_fee": "0.22736197736197736197",
// "avg_price": "196.85000000000000000000",
// "create_time": 1537270135,
// "deal_amount": "0.1",
// "deal_fee": "0",
// "deal_money": "19.685",
// "fee_asset": "CET",
// "fee_discount": "0.5",
// "id": 1788259447,
// "left": "0",
// "maker_fee_rate": "0",
// "market": "ETHUSDT",
// "order_type": "limit",
// "price": "170.00000000",
// "status": "done",
// "taker_fee_rate": "0.0005",
// "type": "sell",
// },
// "message": "Ok"
// }
//
return this.parseOrder (response['data'], market);
}
async fetchOrdersByStatus (status, symbol = undefined, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
if (limit === undefined) {
limit = 100;
}
const request = {
'page': 1,
'limit': limit,
};
let market = undefined;
if (symbol !== undefined) {
market = this.market (symbol);
request['market'] = market['id'];
}
const method = 'privateGetOrder' + this.capitalize (status);
const response = await this[method] (this.extend (request, params));
return this.parseOrders (response['data']['data'], market, since, limit);
}
async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
return await this.fetchOrdersByStatus ('pending', symbol, since, limit, params);
}
async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
return await this.fetchOrdersByStatus ('finished', symbol, since, limit, params);
}
async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
if (limit === undefined) {
limit = 100;
}
const request = {
'page': 1,
'limit': limit,
};
let market = undefined;
if (symbol !== undefined) {
market = this.market (symbol);
request['market'] = market['id'];
}
const response = await this.privateGetOrderUserDeals (this.extend (request, params));
return this.parseTrades (response['data']['data'], market, since, limit);
}
async withdraw (code, amount, address, tag = undefined, params = {}) {
this.checkAddress (address);
await this.loadMarkets ();
const currency = this.currency (code);
if (tag) {
address = address + ':' + tag;
}
const request = {
'coin_type': currency['id'],
'coin_address': address, // must be authorized, inter-user transfer by a registered mobile phone number or an email address is supported
'actual_amount': parseFloat (amount), // the actual amount without fees, https://www.coinex.com/fees
'transfer_method': '1', // '1' = normal onchain transfer, '2' = internal local transfer from one user to another
};
const response = await this.privatePostBalanceCoinWithdraw (this.extend (request, params));
//
// {
// "code": 0,
// "data": {
// "actual_amount": "1.00000000",
// "amount": "1.00000000",
// "coin_address": "1KAv3pazbTk2JnQ5xTo6fpKK7p1it2RzD4",
// "coin_type": "BCH",
// "coin_withdraw_id": 206,
// "confirmations": 0,
// "create_time": 1524228297,
// "status": "audit",
// "tx_fee": "0",
// "tx_id": ""
// },
// "message": "Ok"
// }
//
const transaction = this.safeValue (response, 'data', {});
return this.parseTransaction (transaction, currency);
}
parseTransactionStatus (status) {
const statuses = {
'audit': 'pending',
'pass': 'pending',
'processing': 'pending',
'confirming': 'pending',
'not_pass': 'failed',
'cancel': 'canceled',
'finish': 'ok',
'fail': 'failed',
};
return this.safeString (statuses, status, status);
}
parseTransaction (transaction, currency = undefined) {
//
// fetchDeposits
//
// {
// "actual_amount": "120.00000000",
// "actual_amount_display": "120",
// "add_explorer": "XXX",
// "amount": "120.00000000",
// "amount_display": "120",
// "coin_address": "XXXXXXXX",
// "coin_address_display": "XXXXXXXX",
// "coin_deposit_id": 1866,
// "coin_type": "USDT",
// "confirmations": 0,
// "create_time": 1539595701,
// "explorer": "",
// "remark": "",
// "status": "finish",
// "status_display": "finish",
// "transfer_method": "local",
// "tx_id": "",
// "tx_id_display": "XXXXXXXXXX"
// }
//
// fetchWithdrawals
//
// {
// "actual_amount": "0.10000000",
// "amount": "0.10000000",
// "coin_address": "15sr1VdyXQ6sVLqeJUJ1uPzLpmQtgUeBSB",
// "coin_type": "BCH",
// "coin_withdraw_id": 203,
// "confirmations": 11,
// "create_time": 1515806440,
// "status": "finish",
// "tx_fee": "0",
// "tx_id": "896371d0e23d64d1cac65a0b7c9e9093d835affb572fec89dd4547277fbdd2f6"
// }
//
const id = this.safeString2 (transaction, 'coin_withdraw_id', 'coin_deposit_id');
const address = this.safeString (transaction, 'coin_address');
let tag = this.safeString (transaction, 'remark'); // set but unused
if (tag !== undefined) {
if (tag.length < 1) {
tag = undefined;
}
}
let txid = this.safeValue (transaction, 'tx_id');
if (txid !== undefined) {
if (txid.length < 1) {
txid = undefined;
}
}
const currencyId = this.safeString (transaction, 'coin_type');
const code = this.safeCurrencyCode (currencyId, currency);
const timestamp = this.safeTimestamp (transaction, 'create_time');
const type = ('coin_withdraw_id' in transaction) ? 'withdraw' : 'deposit';
const status = this.parseTransactionStatus (this.safeString (transaction, 'status'), type);
const amount = this.safeFloat (transaction, 'amount');
let feeCost = this.safeFloat (transaction, 'tx_fee');
if (type === 'deposit') {
feeCost = 0;
}
const fee = {
'cost': feeCost,
'currency': code,
};
return {
'info': transaction,
'id': id,
'txid': txid,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'address': address,
'tag': tag,
'type': type,
'amount': amount,
'currency': code,
'status': status,
'updated': undefined,
'fee': fee,
};
}
async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
if (code === undefined) {
throw new ArgumentsRequired (this.id + ' fetchWithdrawals requires a currency code argument');
}
await this.loadMarkets ();
const currency = this.currency (code);
const request = {
'coin_type': currency['id'],
};
if (limit !== undefined) {
request['Limit'] = limit;
}
const response = await this.privateGetBalanceCoinWithdraw (this.extend (request, params));
//
// {
// "code": 0,
// "data": [
// {
// "actual_amount": "1.00000000",
// "amount": "1.00000000",
// "coin_address": "1KAv3pazbTk2JnQ5xTo6fpKK7p1it2RzD4",
// "coin_type": "BCH",
// "coin_withdraw_id": 206,
// "confirmations": 0,
// "create_time": 1524228297,
// "status": "audit",
// "tx_fee": "0",
// "tx_id": ""
// },
// {
// "actual_amount": "0.10000000",
// "amount": "0.10000000",
// "coin_address": "15sr1VdyXQ6sVLqeJUJ1uPzLpmQtgUeBSB",
// "coin_type": "BCH",
// "coin_withdraw_id": 203,
// "confirmations": 11,
// "create_time": 1515806440,
// "status": "finish",
// "tx_fee": "0",
// "tx_id": "896371d0e23d64d1cac65a0b7c9e9093d835affb572fec89dd4547277fbdd2f6"
// },
// {
// "actual_amount": "0.00100000",
// "amount": "0.00100000",
// "coin_address": "1GVVx5UBddLKrckTprNi4VhHSymeQ8tsLF",
// "coin_type": "BCH",
// "coin_withdraw_id": 27,
// "confirmations": 0,
// "create_time": 1513933541,
// "status": "cancel",
// "tx_fee": "0",
// "tx_id": ""
// }
// ],
// "message": "Ok"
// }
//
return this.parseTransactions (response['data'], currency, since, limit);
}
async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
if (code === undefined) {
throw new ArgumentsRequired (this.id + ' fetchDeposits requires a currency code argument');
}
await this.loadMarkets ();
const currency = this.currency (code);
const request = {
'coin_type': currency['id'],
};
if (limit !== undefined) {
request['Limit'] = limit;
}
const response = await this.privateGetBalanceCoinDeposit (this.extend (request, params));
// {
// "code": 0,
// "data": [
// {
// "actual_amount": "4.65397682",
// "actual_amount_display": "4.65397682",
// "add_explorer": "https://etherscan.io/address/0x361XXXXXX",
// "amount": "4.65397682",
// "amount_display": "4.65397682",
// "coin_address": "0x36dabcdXXXXXX",
// "coin_address_display": "0x361X*****XXXXX",
// "coin_deposit_id": 966191,
// "coin_type": "ETH",
// "confirmations": 30,
// "create_time": 1531661445,
// "explorer": "https://etherscan.io/tx/0x361XXXXXX",
// "remark": "",
// "status": "finish",
// "status_display": "finish",
// "transfer_method": "onchain",
// "tx_id": "0x361XXXXXX",
// "tx_id_display": "0x361XXXXXX"
// }
// ],
// "message": "Ok"
// }
//
return this.parseTransactions (response['data'], currency, since, limit);
}
nonce () {
return this.milliseconds ();
}
sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
path = this.implodeParams (path, params);
let url = this.urls['api'] + '/' + this.version + '/' + path;
let 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 ();
query = this.extend ({
'access_id': this.apiKey,
'tonce': nonce.toString (),
}, query);
query = this.keysort (query);
const urlencoded = this.urlencode (query);
const signature = this.hash (this.encode (urlencoded + '&secret_key=' + this.secret));
headers = {
'Authorization': signature.toUpperCase (),
'Content-Type': 'application/json',
};
if ((method === 'GET') || (method === 'DELETE')) {
url += '?' + urlencoded;
} else {
body = this.json (query);
}
}
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);
const code = this.safeString (response, 'code');
const data = this.safeValue (response, 'data');
if (code !== '0' || !data) {
const responseCodes = {
'24': AuthenticationError,
'25': AuthenticationError,
'107': InsufficientFunds,
'600': OrderNotFound,
'601': InvalidOrder,
'602': InvalidOrder,
'606': InvalidOrder,
};
const ErrorClass = this.safeValue (responseCodes, code, ExchangeError);
throw new ErrorClass (response['message']);
}
return response;
}
};