sfccxt
Version:
A JavaScript / Python / PHP cryptocurrency trading library with support for 130+ exchanges
830 lines (800 loc) • 34.1 kB
JavaScript
'use strict';
// ---------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { ExchangeError, AuthenticationError, DDoSProtection, InvalidOrder, InsufficientFunds } = require ('./base/errors');
const { TICK_SIZE } = require ('./base/functions/number');
const Precise = require ('./base/Precise');
// ---------------------------------------------------------------------------
module.exports = class btcalpha extends Exchange {
describe () {
return this.deepExtend (super.describe (), {
'id': 'btcalpha',
'name': 'BTC-Alpha',
'countries': [ 'US' ],
'version': 'v1',
'has': {
'CORS': undefined,
'spot': true,
'margin': false,
'swap': false,
'future': false,
'option': false,
'addMargin': false,
'cancelOrder': true,
'createOrder': true,
'createReduceOnlyOrder': false,
'createStopLimitOrder': false,
'createStopMarketOrder': false,
'createStopOrder': false,
'fetchBalance': true,
'fetchBorrowRate': false,
'fetchBorrowRateHistories': false,
'fetchBorrowRateHistory': false,
'fetchBorrowRates': false,
'fetchBorrowRatesPerSymbol': false,
'fetchClosedOrders': true,
'fetchDeposit': false,
'fetchDeposits': true,
'fetchFundingHistory': false,
'fetchFundingRate': false,
'fetchFundingRateHistory': false,
'fetchFundingRates': false,
'fetchIndexOHLCV': false,
'fetchL2OrderBook': true,
'fetchLeverage': false,
'fetchMarginMode': false,
'fetchMarkets': true,
'fetchMarkOHLCV': false,
'fetchMyTrades': true,
'fetchOHLCV': true,
'fetchOpenInterestHistory': false,
'fetchOpenOrders': true,
'fetchOrder': true,
'fetchOrderBook': true,
'fetchOrders': true,
'fetchPosition': false,
'fetchPositionMode': false,
'fetchPositions': false,
'fetchPositionsRisk': false,
'fetchPremiumIndexOHLCV': false,
'fetchTicker': undefined,
'fetchTrades': true,
'fetchTradingFee': false,
'fetchTradingFees': false,
'fetchTransfer': false,
'fetchTransfers': false,
'fetchWithdrawal': false,
'fetchWithdrawals': true,
'reduceMargin': false,
'setLeverage': false,
'setMarginMode': false,
'setPositionMode': false,
'transfer': false,
'withdraw': false,
},
'timeframes': {
'5m': '5',
'15m': '15',
'30m': '30',
'1h': '60',
'4h': '240',
'1d': 'D',
},
'urls': {
'logo': 'https://user-images.githubusercontent.com/1294454/42625213-dabaa5da-85cf-11e8-8f99-aa8f8f7699f0.jpg',
'api': {
'rest': 'https://btc-alpha.com/api',
},
'www': 'https://btc-alpha.com',
'doc': 'https://btc-alpha.github.io/api-docs',
'fees': 'https://btc-alpha.com/fees/',
'referral': 'https://btc-alpha.com/?r=123788',
},
'api': {
'public': {
'get': [
'currencies/',
'pairs/',
'orderbook/{pair_name}',
'exchanges/',
'charts/{pair}/{type}/chart/',
],
},
'private': {
'get': [
'wallets/',
'orders/own/',
'order/{id}/',
'exchanges/own/',
'deposits/',
'withdraws/',
],
'post': [
'order/',
'order-cancel/',
],
},
},
'fees': {
'trading': {
'maker': this.parseNumber ('0.002'),
'taker': this.parseNumber ('0.002'),
},
'funding': {
'withdraw': {},
},
},
'commonCurrencies': {
'CBC': 'Cashbery',
},
'precisionMode': TICK_SIZE,
'exceptions': {
'exact': {},
'broad': {
'Out of balance': InsufficientFunds, // {"date":1570599531.4814300537,"error":"Out of balance -9.99243661 BTC"}
},
},
});
}
async fetchMarkets (params = {}) {
/**
* @method
* @name btcalpha#fetchMarkets
* @description retrieves data on all markets for btcalpha
* @param {object} params extra parameters specific to the exchange api endpoint
* @returns {[object]} an array of objects representing market data
*/
const response = await this.publicGetPairs (params);
//
// [
// {
// "name": "1INCH_USDT",
// "currency1": "1INCH",
// "currency2": "USDT",
// "price_precision": 4,
// "amount_precision": 2,
// "minimum_order_size": "0.01000000",
// "maximum_order_size": "900000.00000000",
// "minimum_order_value": "10.00000000",
// "liquidity_type": 10
// },
// ]
//
const result = [];
for (let i = 0; i < response.length; i++) {
const market = response[i];
const id = this.safeString (market, 'name');
const baseId = this.safeString (market, 'currency1');
const quoteId = this.safeString (market, 'currency2');
const base = this.safeCurrencyCode (baseId);
const quote = this.safeCurrencyCode (quoteId);
const pricePrecision = this.safeString (market, 'price_precision');
const priceLimit = this.parsePrecision (pricePrecision);
const amountLimit = this.safeString (market, 'minimum_order_size');
result.push ({
'id': id,
'symbol': base + '/' + quote,
'base': base,
'quote': quote,
'settle': undefined,
'baseId': baseId,
'quoteId': quoteId,
'settleId': undefined,
'type': 'spot',
'spot': true,
'margin': false,
'swap': false,
'future': false,
'option': false,
'active': true,
'contract': false,
'linear': undefined,
'inverse': undefined,
'contractSize': undefined,
'expiry': undefined,
'expiryDatetime': undefined,
'strike': undefined,
'optionType': undefined,
'precision': {
'amount': this.parseNumber (this.parsePrecision (this.safeString (market, 'amount_precision'))),
'price': this.parseNumber (this.parsePrecision ((pricePrecision))),
},
'limits': {
'leverage': {
'min': undefined,
'max': undefined,
},
'amount': {
'min': this.parseNumber (amountLimit),
'max': this.safeNumber (market, 'maximum_order_size'),
},
'price': {
'min': this.parseNumber (priceLimit),
'max': undefined,
},
'cost': {
'min': this.parseNumber (Precise.stringMul (priceLimit, amountLimit)),
'max': undefined,
},
},
'info': market,
});
}
return result;
}
async fetchOrderBook (symbol, limit = undefined, params = {}) {
/**
* @method
* @name btcalpha#fetchOrderBook
* @description fetches information on open orders with bid (buy) and ask (sell) prices, volumes and other data
* @param {string} symbol unified symbol of the market to fetch the order book for
* @param {int|undefined} limit the maximum amount of order book entries to return
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {object} A dictionary of [order book structures]{@link https://docs.ccxt.com/en/latest/manual.html#order-book-structure} indexed by market symbols
*/
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'pair_name': market['id'],
};
if (limit) {
request['limit_sell'] = limit;
request['limit_buy'] = limit;
}
const response = await this.publicGetOrderbookPairName (this.extend (request, params));
return this.parseOrderBook (response, market['symbol'], undefined, 'buy', 'sell', 'price', 'amount');
}
parseBidsAsks (bidasks, priceKey = 0, amountKey = 1) {
const result = [];
for (let i = 0; i < bidasks.length; i++) {
const bidask = bidasks[i];
if (bidask) {
result.push (this.parseBidAsk (bidask, priceKey, amountKey));
}
}
return result;
}
parseTrade (trade, market = undefined) {
//
// fetchTrades (public)
//
// {
// "id": "202203440",
// "timestamp": "1637856276.264215",
// "pair": "AAVE_USDT",
// "price": "320.79900000",
// "amount": "0.05000000",
// "type": "buy"
// }
//
// fetchMyTrades (private)
//
// {
// "id": "202203440",
// "timestamp": "1637856276.264215",
// "pair": "AAVE_USDT",
// "price": "320.79900000",
// "amount": "0.05000000",
// "type": "buy",
// "my_side": "buy"
// }
//
const marketId = this.safeString (trade, 'pair');
market = this.safeMarket (marketId, market, '_');
const timestampRaw = this.safeString (trade, 'timestamp');
const timestamp = this.parseNumber (Precise.stringMul (timestampRaw, '1000000'));
const priceString = this.safeString (trade, 'price');
const amountString = this.safeString (trade, 'amount');
const id = this.safeString (trade, 'id');
const side = this.safeString2 (trade, 'my_side', 'type');
return this.safeTrade ({
'id': id,
'info': trade,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'symbol': market['symbol'],
'order': id,
'type': 'limit',
'side': side,
'takerOrMaker': undefined,
'price': priceString,
'amount': amountString,
'cost': undefined,
'fee': undefined,
}, market);
}
async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
/**
* @method
* @name btcalpha#fetchTrades
* @description get the list of most recent trades for a particular symbol
* @param {string} symbol unified symbol of the market to fetch trades for
* @param {int|undefined} since timestamp in ms of the earliest trade to fetch
* @param {int|undefined} limit the maximum amount of trades to fetch
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {[object]} a list of [trade structures]{@link https://docs.ccxt.com/en/latest/manual.html?#public-trades}
*/
await this.loadMarkets ();
let market = undefined;
const request = {};
if (symbol !== undefined) {
market = this.market (symbol);
request['pair'] = market['id'];
}
if (limit !== undefined) {
request['limit'] = limit;
}
const trades = await this.publicGetExchanges (this.extend (request, params));
return this.parseTrades (trades, market, since, limit);
}
async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
/**
* @method
* @name btcalpha#fetchDeposits
* @description fetch all deposits made to an account
* @param {string|undefined} code unified currency code
* @param {int|undefined} since the earliest time in ms to fetch deposits for
* @param {int|undefined} limit the maximum number of deposits structures to retrieve
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {[object]} a list of [transaction structures]{@link https://docs.ccxt.com/en/latest/manual.html#transaction-structure}
*/
await this.loadMarkets ();
let currency = undefined;
if (code !== undefined) {
currency = this.currency (code);
}
const response = await this.privateGetDeposits (params);
//
// [
// {
// "timestamp": 1485363039.18359,
// "id": 317,
// "currency": "BTC",
// "amount": 530.00000000
// }
// ]
//
return this.parseTransactions (response, currency, since, limit, { 'type': 'deposit' });
}
async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
/**
* @method
* @name btcalpha#fetchWithdrawals
* @description fetch all withdrawals made from an account
* @param {string|undefined} code unified currency code
* @param {int|undefined} since the earliest time in ms to fetch withdrawals for
* @param {int|undefined} limit the maximum number of withdrawals structures to retrieve
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {[object]} a list of [transaction structures]{@link https://docs.ccxt.com/en/latest/manual.html#transaction-structure}
*/
await this.loadMarkets ();
let currency = undefined;
const request = {};
if (code !== undefined) {
currency = this.currency (code);
request['currency_id'] = currency['id'];
}
const response = await this.privateGetWithdraws (this.extend (request, params));
//
// [
// {
// "id": 403,
// "timestamp": 1485363466.868539,
// "currency": "BTC",
// "amount": 0.53000000,
// "status": 20
// }
// ]
//
return this.parseTransactions (response, currency, since, limit, { 'type': 'withdrawal' });
}
parseTransaction (transaction, currency = undefined) {
//
// deposit
// {
// "timestamp": 1485363039.18359,
// "id": 317,
// "currency": "BTC",
// "amount": 530.00000000
// }
//
// withdrawal
// {
// "id": 403,
// "timestamp": 1485363466.868539,
// "currency": "BTC",
// "amount": 0.53000000,
// "status": 20
// }
//
const timestamp = this.safeTimestamp (transaction, 'timestamp');
const currencyId = this.safeString (transaction, 'currency');
const statusId = this.safeString (transaction, 'status');
return {
'id': this.safeString (transaction, 'id'),
'info': transaction,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'network': undefined,
'address': undefined,
'addressTo': undefined,
'addressFrom': undefined,
'tag': undefined,
'tagTo': undefined,
'tagFrom': undefined,
'currency': this.safeCurrencyCode (currencyId, currency),
'amount': this.safeNumber (transaction, 'amount'),
'txid': undefined,
'type': undefined,
'status': this.parseTransactionStatus (statusId),
'comment': undefined,
'fee': undefined,
'updated': undefined,
};
}
parseTransactionStatus (status) {
const statuses = {
'10': 'pending', // New
'20': 'pending', // Verified, waiting for approving
'30': 'ok', // Approved by moderator
'40': 'failed', // Refused by moderator. See your email for more details
'50': 'canceled', // Cancelled by user
};
return this.safeString (statuses, status, status);
}
parseOHLCV (ohlcv, market = undefined) {
//
// {
// "time":1591296000,
// "open":0.024746,
// "close":0.024728,
// "low":0.024728,
// "high":0.024753,
// "volume":16.624
// }
//
return [
this.safeTimestamp (ohlcv, 'time'),
this.safeNumber (ohlcv, 'open'),
this.safeNumber (ohlcv, 'high'),
this.safeNumber (ohlcv, 'low'),
this.safeNumber (ohlcv, 'close'),
this.safeNumber (ohlcv, 'volume'),
];
}
async fetchOHLCV (symbol, timeframe = '5m', since = undefined, limit = undefined, params = {}) {
/**
* @method
* @name btcalpha#fetchOHLCV
* @description fetches historical candlestick data containing the open, high, low, and close price, and the volume of a market
* @param {string} symbol unified symbol of the market to fetch OHLCV data for
* @param {string} timeframe the length of time each candle represents
* @param {int|undefined} since timestamp in ms of the earliest candle to fetch
* @param {int|undefined} limit the maximum amount of candles to fetch
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {[[int]]} A list of candles ordered as timestamp, open, high, low, close, volume
*/
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'pair': market['id'],
'type': this.timeframes[timeframe],
};
if (limit !== undefined) {
request['limit'] = limit;
}
if (since !== undefined) {
request['since'] = parseInt (since / 1000);
}
const response = await this.publicGetChartsPairTypeChart (this.extend (request, params));
//
// [
// {"time":1591296000,"open":0.024746,"close":0.024728,"low":0.024728,"high":0.024753,"volume":16.624},
// {"time":1591295700,"open":0.024718,"close":0.02475,"low":0.024711,"high":0.02475,"volume":31.645},
// {"time":1591295400,"open":0.024721,"close":0.024717,"low":0.024711,"high":0.02473,"volume":65.071}
// ]
//
return this.parseOHLCVs (response, market, timeframe, since, limit);
}
parseBalance (response) {
const result = { 'info': response };
for (let i = 0; i < response.length; i++) {
const balance = response[i];
const currencyId = this.safeString (balance, 'currency');
const code = this.safeCurrencyCode (currencyId);
const account = this.account ();
account['used'] = this.safeString (balance, 'reserve');
account['total'] = this.safeString (balance, 'balance');
result[code] = account;
}
return this.safeBalance (result);
}
async fetchBalance (params = {}) {
/**
* @method
* @name btcalpha#fetchBalance
* @description query for balance and get the amount of funds available for trading or funds locked in orders
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {object} a [balance structure]{@link https://docs.ccxt.com/en/latest/manual.html?#balance-structure}
*/
await this.loadMarkets ();
const response = await this.privateGetWallets (params);
return this.parseBalance (response);
}
parseOrderStatus (status) {
const statuses = {
'1': 'open',
'2': 'canceled',
'3': 'closed',
};
return this.safeString (statuses, status, status);
}
parseOrder (order, market = undefined) {
//
// fetchClosedOrders / fetchOrder
// {
// "id": "923763073",
// "date": "1635451090368",
// "type": "sell",
// "pair": "XRP_USDT",
// "price": "1.00000000",
// "amount": "0.00000000",
// "status": "3",
// "amount_filled": "10.00000000",
// "amount_original": "10.0"
// "trades": [],
// }
//
// createOrder
// {
// "success": true,
// "date": "1635451754.497541",
// "type": "sell",
// "oid": "923776755",
// "price": "1.0",
// "amount": "10.0",
// "amount_filled": "0.0",
// "amount_original": "10.0",
// "trades": []
// }
//
const marketId = this.safeString (order, 'pair');
market = this.safeMarket (marketId, market, '_');
const symbol = market['symbol'];
const success = this.safeValue (order, 'success', false);
let timestamp = undefined;
if (success) {
timestamp = this.safeTimestamp (order, 'date');
} else {
timestamp = this.safeInteger (order, 'date');
}
const price = this.safeString (order, 'price');
const remaining = this.safeString (order, 'amount');
const filled = this.safeString (order, 'amount_filled');
const amount = this.safeString (order, 'amount_original');
const status = this.parseOrderStatus (this.safeString (order, 'status'));
const id = this.safeString2 (order, 'oid', 'id');
const trades = this.safeValue (order, 'trades');
const side = this.safeString2 (order, 'my_side', 'type');
return this.safeOrder ({
'id': id,
'clientOrderId': undefined,
'datetime': this.iso8601 (timestamp),
'timestamp': timestamp,
'status': status,
'symbol': symbol,
'type': 'limit',
'timeInForce': undefined,
'postOnly': undefined,
'side': side,
'price': price,
'stopPrice': undefined,
'cost': undefined,
'amount': amount,
'filled': filled,
'remaining': remaining,
'trades': trades,
'fee': undefined,
'info': order,
'lastTradeTimestamp': undefined,
'average': undefined,
}, market);
}
async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
/**
* @method
* @name btcalpha#createOrder
* @description create a trade order
* @param {string} symbol unified symbol of the market to create an order in
* @param {string} type 'market' or 'limit'
* @param {string} side 'buy' or 'sell'
* @param {float} amount how much of currency you want to trade in units of base currency
* @param {float|undefined} price the price at which the order is to be fullfilled, in units of the quote currency, ignored in market orders
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {object} an [order structure]{@link https://docs.ccxt.com/en/latest/manual.html#order-structure}
*/
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'pair': market['id'],
'type': side,
'amount': amount,
'price': this.priceToPrecision (symbol, price),
};
const response = await this.privatePostOrder (this.extend (request, params));
if (!response['success']) {
throw new InvalidOrder (this.id + ' ' + this.json (response));
}
const order = this.parseOrder (response, market);
const orderAmount = order['amount'].toString ();
amount = Precise.stringGt (orderAmount, '0') ? order['amount'] : amount;
return this.extend (order, {
'amount': this.parseNumber (amount),
});
}
async cancelOrder (id, symbol = undefined, params = {}) {
/**
* @method
* @name btcalpha#cancelOrder
* @description cancels an open order
* @param {string} id order id
* @param {string|undefined} symbol unified symbol of the market the order was made in
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {object} An [order structure]{@link https://docs.ccxt.com/en/latest/manual.html#order-structure}
*/
const request = {
'order': id,
};
const response = await this.privatePostOrderCancel (this.extend (request, params));
return response;
}
async fetchOrder (id, symbol = undefined, params = {}) {
/**
* @method
* @name btcalpha#fetchOrder
* @description fetches information on an order made by the user
* @param {string|undefined} symbol not used by btcalpha fetchOrder
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {object} An [order structure]{@link https://docs.ccxt.com/en/latest/manual.html#order-structure}
*/
await this.loadMarkets ();
const request = {
'id': id,
};
const order = await this.privateGetOrderId (this.extend (request, params));
return this.parseOrder (order);
}
async fetchOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
/**
* @method
* @name btcalpha#fetchOrders
* @description fetches information on multiple orders made by the user
* @param {string|undefined} symbol unified market symbol of the market orders were made in
* @param {int|undefined} since the earliest time in ms to fetch orders for
* @param {int|undefined} limit the maximum number of orde structures to retrieve
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {[object]} a list of [order structures]{@link https://docs.ccxt.com/en/latest/manual.html#order-structure}
*/
await this.loadMarkets ();
const request = {};
let market = undefined;
if (symbol !== undefined) {
market = this.market (symbol);
request['pair'] = market['id'];
}
if (limit !== undefined) {
request['limit'] = limit;
}
const orders = await this.privateGetOrdersOwn (this.extend (request, params));
return this.parseOrders (orders, market, since, limit);
}
async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
/**
* @method
* @name btcalpha#fetchOpenOrders
* @description fetch all unfilled currently open orders
* @param {string|undefined} symbol unified market symbol
* @param {int|undefined} since the earliest time in ms to fetch open orders for
* @param {int|undefined} limit the maximum number of open orders structures to retrieve
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {[object]} a list of [order structures]{@link https://docs.ccxt.com/en/latest/manual.html#order-structure}
*/
const request = {
'status': '1',
};
return await this.fetchOrders (symbol, since, limit, this.extend (request, params));
}
async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
/**
* @method
* @name btcalpha#fetchClosedOrders
* @description fetches information on multiple closed orders made by the user
* @param {string|undefined} symbol unified market symbol of the market orders were made in
* @param {int|undefined} since the earliest time in ms to fetch orders for
* @param {int|undefined} limit the maximum number of orde structures to retrieve
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {[object]} a list of [order structures]{@link https://docs.ccxt.com/en/latest/manual.html#order-structure}
*/
const request = {
'status': '3',
};
return await this.fetchOrders (symbol, since, limit, this.extend (request, params));
}
async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
/**
* @method
* @name btcalpha#fetchMyTrades
* @description fetch all trades made by the user
* @param {string|undefined} symbol unified market symbol
* @param {int|undefined} since the earliest time in ms to fetch trades for
* @param {int|undefined} limit the maximum number of trades structures to retrieve
* @param {object} params extra parameters specific to the btcalpha api endpoint
* @returns {[object]} a list of [trade structures]{@link https://docs.ccxt.com/en/latest/manual.html#trade-structure}
*/
await this.loadMarkets ();
const request = {};
if (symbol !== undefined) {
const market = this.market (symbol);
request['pair'] = market['id'];
}
if (limit !== undefined) {
request['limit'] = limit;
}
const trades = await this.privateGetExchangesOwn (this.extend (request, params));
return this.parseTrades (trades, undefined, since, limit);
}
nonce () {
return this.milliseconds ();
}
sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
const query = this.urlencode (this.keysort (this.omit (params, this.extractParams (path))));
let url = this.urls['api']['rest'] + '/';
if (path !== 'charts/{pair}/{type}/chart/') {
url += 'v1/';
}
url += this.implodeParams (path, params);
headers = { 'Accept': 'application/json' };
if (api === 'public') {
if (query.length) {
url += '?' + query;
}
} else {
this.checkRequiredCredentials ();
let payload = this.apiKey;
if (method === 'POST') {
headers['Content-Type'] = 'application/x-www-form-urlencoded';
body = query;
payload += body;
} else if (query.length) {
url += '?' + query;
}
headers['X-KEY'] = this.apiKey;
headers['X-SIGN'] = this.hmac (this.encode (payload), this.encode (this.secret));
headers['X-NONCE'] = this.nonce ().toString ();
}
return { 'url': url, 'method': method, 'body': body, 'headers': headers };
}
handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
if (response === undefined) {
return; // fallback to default error handler
}
//
// {"date":1570599531.4814300537,"error":"Out of balance -9.99243661 BTC"}
//
const error = this.safeString (response, 'error');
const feedback = this.id + ' ' + body;
if (error !== undefined) {
this.throwExactlyMatchedException (this.exceptions['exact'], error, feedback);
this.throwBroadlyMatchedException (this.exceptions['broad'], error, feedback);
}
if (code === 401 || code === 403) {
throw new AuthenticationError (feedback);
} else if (code === 429) {
throw new DDoSProtection (feedback);
}
if (code < 400) {
return;
}
throw new ExchangeError (feedback);
}
};