ccxt
Version:
764 lines (761 loc) • 33.2 kB
JavaScript
// ----------------------------------------------------------------------------
// PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
// https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
// EDIT THE CORRESPONDENT .ts FILE INSTEAD
// ---------------------------------------------------------------------------
import okcoinRest from '../okcoin.js';
import { ArgumentsRequired, AuthenticationError } from '../base/errors.js';
import { ArrayCache, ArrayCacheByTimestamp, ArrayCacheBySymbolById } from '../base/ws/Cache.js';
import { sha256 } from '../static_dependencies/noble-hashes/sha256.js';
// ---------------------------------------------------------------------------
export default class okcoin extends okcoinRest {
describe() {
return this.deepExtend(super.describe(), {
'has': {
'ws': true,
'watchTicker': true,
'watchTickers': false,
'watchOrderBook': true,
'watchOrders': true,
'watchTrades': true,
'watchTradesForSymbols': false,
'watchBalance': true,
'watchOHLCV': true,
},
'urls': {
'api': {
'ws': 'wss://real.okcoin.com:8443/ws/v3',
},
'logo': 'https://user-images.githubusercontent.com/1294454/27766791-89ffb502-5ee5-11e7-8a5b-c5950b68ac65.jpg',
'www': 'https://www.okcoin.com',
'doc': 'https://www.okcoin.com/docs/en/',
'fees': 'https://www.okcoin.com/coin-fees',
'referral': 'https://www.okcoin.com/account/register?flag=activity&channelId=600001513',
},
'options': {
'fetchMarkets': ['spot'],
'watchOrders': 'order',
'watchOrderBook': {
'limit': 400,
'type': 'spot',
'depth': 'depth_l2_tbt', // depth5, depth
},
'watchBalance': 'spot',
'ws': {
'inflate': true,
},
},
'streaming': {
// okex does not support built-in ws protocol-level ping-pong
// instead it requires a custom text-based ping-pong
'ping': this.ping,
'keepAlive': 20000,
},
});
}
async subscribe(channel, symbol, params = {}) {
await this.loadMarkets();
const market = this.market(symbol);
const url = this.urls['api']['ws'];
const messageHash = market['type'] + '/' + channel + ':' + market['id'];
const request = {
'op': 'subscribe',
'args': [messageHash],
};
return await this.watch(url, messageHash, this.deepExtend(request, params), messageHash);
}
/**
* @method
* @name okcoin#watchTrades
* @description get the list of most recent trades for a particular symbol
* @see https://www.okcoin.com/docs-v5/en/#websocket-api-public-channel-trades-channel
* @param {string} symbol unified symbol of the market to fetch trades for
* @param {int} [since] timestamp in ms of the earliest trade to fetch
* @param {int} [limit] the maximum amount of trades to fetch
* @param {object} [params] extra parameters specific to the exchange API endpoint
* @returns {object[]} a list of [trade structures]{@link https://docs.ccxt.com/#/?id=public-trades}
*/
async watchTrades(symbol, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets();
symbol = this.symbol(symbol);
const trades = await this.subscribe('trade', symbol, params);
if (this.newUpdates) {
limit = trades.getLimit(symbol, limit);
}
return this.filterBySinceLimit(trades, since, limit, 'timestamp', true);
}
/**
* @method
* @name okcoin#watchOrders
* @description watches information on multiple orders made by the user
* @see https://www.okcoin.com/docs-v5/en/#websocket-api-private-channel-order-channel
* @param {string} symbol unified market symbol of the market orders were made in
* @param {int} [since] the earliest time in ms to fetch orders for
* @param {int} [limit] the maximum number of order structures to retrieve
* @param {object} [params] extra parameters specific to the exchange API endpoint
* @returns {object[]} a list of [order structures]{@link https://docs.ccxt.com/#/?id=order-structure}
*/
async watchOrders(symbol = undefined, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets();
await this.authenticate();
if (symbol !== undefined) {
symbol = this.symbol(symbol);
}
const orderType = this.safeString(this.options, 'watchOrders', 'order');
const trades = await this.subscribe(orderType, symbol, params);
if (this.newUpdates) {
limit = trades.getLimit(symbol, limit);
}
return this.filterBySinceLimit(trades, since, limit, 'timestamp', true);
}
handleOrders(client, message, subscription = undefined) {
//
// {
// "table": "spot/order",
// "data": [
// {
// "client_oid": '',
// "created_at": "2022-03-04T16:44:58.530Z",
// "event_code": "0",
// "event_message": '',
// "fee": '',
// "fee_currency": '',
// "filled_notional": "0",
// "filled_size": "0",
// "instrument_id": "LTC-USD",
// "last_amend_result": '',
// "last_fill_id": "0",
// "last_fill_px": "0",
// "last_fill_qty": "0",
// "last_fill_time": "1970-01-01T00:00:00.000Z",
// "last_request_id": '',
// "margin_trading": "1",
// "notional": '',
// "order_id": "8629537900471296",
// "order_type": "0",
// "price": "1500",
// "rebate": '',
// "rebate_currency": '',
// "side": "sell",
// "size": "0.0133",
// "state": "0",
// "status": "open",
// "timestamp": "2022-03-04T16:44:58.530Z",
// "type": "limit"
// }
// ]
// }
//
const table = this.safeString(message, 'table');
const orders = this.safeValue(message, 'data', []);
const ordersLength = orders.length;
if (ordersLength > 0) {
const limit = this.safeInteger(this.options, 'ordersLimit', 1000);
if (this.orders === undefined) {
this.orders = new ArrayCacheBySymbolById(limit);
}
const stored = this.orders;
const marketIds = {};
const parsed = this.parseOrders(orders);
for (let i = 0; i < parsed.length; i++) {
const order = parsed[i];
stored.append(order);
const symbol = order['symbol'];
const market = this.market(symbol);
marketIds[market['id']] = true;
}
const keys = Object.keys(marketIds);
for (let i = 0; i < keys.length; i++) {
const messageHash = table + ':' + keys[i];
client.resolve(this.orders, messageHash);
}
}
}
/**
* @method
* @name okcoin#watchTicker
* @description watches a price ticker, a statistical calculation with the information calculated over the past 24 hours for a specific market
* @see https://www.okcoin.com/docs-v5/en/#websocket-api-public-channel-tickers-channel
* @param {string} symbol unified symbol of the market to fetch the ticker for
* @param {object} [params] extra parameters specific to the exchange API endpoint
* @returns {object} a [ticker structure]{@link https://docs.ccxt.com/#/?id=ticker-structure}
*/
async watchTicker(symbol, params = {}) {
return await this.subscribe('ticker', symbol, params);
}
handleTrade(client, message) {
//
// {
// "table": "spot/trade",
// "data": [
// {
// "side": "buy",
// "trade_id": "30770973",
// "price": "4665.4",
// "size": "0.019",
// "instrument_id": "BTC-USDT",
// "timestamp": "2020-03-16T13:41:46.526Z"
// }
// ]
// }
//
const table = this.safeString(message, 'table');
const data = this.safeValue(message, 'data', []);
const tradesLimit = this.safeInteger(this.options, 'tradesLimit', 1000);
for (let i = 0; i < data.length; i++) {
const trade = this.parseTrade(data[i]);
const symbol = trade['symbol'];
const marketId = this.safeString(trade['info'], 'instrument_id');
const messageHash = table + ':' + marketId;
let stored = this.safeValue(this.trades, symbol);
if (stored === undefined) {
stored = new ArrayCache(tradesLimit);
this.trades[symbol] = stored;
}
stored.append(trade);
client.resolve(stored, messageHash);
}
return message;
}
handleTicker(client, message) {
//
// {
// "table": "spot/ticker",
// "data": [
// {
// "last": "4634.1",
// "open_24h": "5305.6",
// "best_bid": "4631.6",
// "high_24h": "5950",
// "low_24h": "4448.8",
// "base_volume_24h": "147913.11435388",
// "quote_volume_24h": "756850119.99108082",
// "best_ask": "4631.7",
// "instrument_id": "BTC-USDT",
// "timestamp": "2020-03-16T13:16:25.677Z",
// "best_bid_size": "0.12348942",
// "best_ask_size": "0.00100014",
// "last_qty": "0.00331822"
// }
// ]
// }
//
const table = this.safeString(message, 'table');
const data = this.safeValue(message, 'data', []);
for (let i = 0; i < data.length; i++) {
const ticker = this.parseTicker(data[i]);
const symbol = ticker['symbol'];
const marketId = this.safeString(ticker['info'], 'instrument_id');
const messageHash = table + ':' + marketId;
this.tickers[symbol] = ticker;
client.resolve(ticker, messageHash);
}
return message;
}
/**
* @method
* @name okcoin#watchOHLCV
* @description watches historical candlestick data containing the open, high, low, and close price, and the volume of a market
* @see https://www.okcoin.com/docs-v5/en/#websocket-api-public-channel-candlesticks-channel
* @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} [since] timestamp in ms of the earliest candle to fetch
* @param {int} [limit] the maximum amount of candles to fetch
* @param {object} [params] extra parameters specific to the exchange API endpoint
* @returns {int[][]} A list of candles ordered as timestamp, open, high, low, close, volume
*/
async watchOHLCV(symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
await this.loadMarkets();
symbol = this.symbol(symbol);
const interval = this.safeString(this.timeframes, timeframe, timeframe);
const name = 'candle' + interval + 's';
const ohlcv = await this.subscribe(name, symbol, params);
if (this.newUpdates) {
limit = ohlcv.getLimit(symbol, limit);
}
return this.filterBySinceLimit(ohlcv, since, limit, 0, true);
}
handleOHLCV(client, message) {
//
// {
// "table": "spot/candle60s",
// "data": [
// {
// "candle": [
// "2020-03-16T14:29:00.000Z",
// "4948.3",
// "4966.7",
// "4939.1",
// "4945.3",
// "238.36021657"
// ],
// "instrument_id": "BTC-USDT"
// }
// ]
// }
//
const table = this.safeString(message, 'table');
const data = this.safeValue(message, 'data', []);
const parts = table.split('/');
const part1 = this.safeString(parts, 1);
let interval = part1.replace('candle', '');
interval = interval.replace('s', '');
// use a reverse lookup in a static map instead
const timeframe = this.findTimeframe(interval);
for (let i = 0; i < data.length; i++) {
const marketId = this.safeString(data[i], 'instrument_id');
const candle = this.safeValue(data[i], 'candle');
const market = this.safeMarket(marketId);
const symbol = market['symbol'];
const parsed = this.parseOHLCV(candle, market);
this.ohlcvs[symbol] = this.safeValue(this.ohlcvs, symbol, {});
let stored = this.safeValue(this.ohlcvs[symbol], timeframe);
if (stored === undefined) {
const limit = this.safeInteger(this.options, 'OHLCVLimit', 1000);
stored = new ArrayCacheByTimestamp(limit);
this.ohlcvs[symbol][timeframe] = stored;
}
stored.append(parsed);
const messageHash = table + ':' + marketId;
client.resolve(stored, messageHash);
}
}
/**
* @method
* @name okcoin#watchOrderBook
* @description watches information on open orders with bid (buy) and ask (sell) prices, volumes and other data
* @see https://www.okcoin.com/docs-v5/en/#websocket-api-public-channel-order-book-channel
* @param {string} symbol unified symbol of the market to fetch the order book for
* @param {int} [limit] the maximum amount of order book entries to return
* @param {object} [params] extra parameters specific to the exchange API endpoint
* @returns {object} A dictionary of [order book structures]{@link https://docs.ccxt.com/#/?id=order-book-structure} indexed by market symbols
*/
async watchOrderBook(symbol, limit = undefined, params = {}) {
const options = this.safeValue(this.options, 'watchOrderBook', {});
const depth = this.safeString(options, 'depth', 'depth_l2_tbt');
const orderbook = await this.subscribe(depth, symbol, params);
return orderbook.limit();
}
handleDelta(bookside, delta) {
const price = this.safeFloat(delta, 0);
const amount = this.safeFloat(delta, 1);
bookside.store(price, amount);
}
handleDeltas(bookside, deltas) {
for (let i = 0; i < deltas.length; i++) {
this.handleDelta(bookside, deltas[i]);
}
}
handleOrderBookMessage(client, message, orderbook) {
//
// {
// "instrument_id": "BTC-USDT",
// "asks": [
// ["4568.5", "0.49723138", "2"],
// ["4568.7", "0.5013", "1"],
// ["4569.1", "0.4398", "1"],
// ],
// "bids": [
// ["4568.4", "0.84187666", "5"],
// ["4568.3", "0.75661506", "6"],
// ["4567.8", "2.01", "2"],
// ],
// "timestamp": "2020-03-16T11:11:43.388Z",
// "checksum": 473370408
// }
//
const asks = this.safeValue(message, 'asks', []);
const bids = this.safeValue(message, 'bids', []);
this.handleDeltas(orderbook['asks'], asks);
this.handleDeltas(orderbook['bids'], bids);
const timestamp = this.parse8601(this.safeString(message, 'timestamp'));
orderbook['timestamp'] = timestamp;
orderbook['datetime'] = this.iso8601(timestamp);
return orderbook;
}
handleOrderBook(client, message) {
//
// first message (snapshot)
//
// {
// "table": "spot/depth",
// "action": "partial",
// "data": [
// {
// "instrument_id": "BTC-USDT",
// "asks": [
// ["4568.5", "0.49723138", "2"],
// ["4568.7", "0.5013", "1"],
// ["4569.1", "0.4398", "1"],
// ],
// "bids": [
// ["4568.4", "0.84187666", "5"],
// ["4568.3", "0.75661506", "6"],
// ["4567.8", "2.01", "2"],
// ],
// "timestamp": "2020-03-16T11:11:43.388Z",
// "checksum": 473370408
// }
// ]
// }
//
// subsequent updates
//
// {
// "table": "spot/depth",
// "action": "update",
// "data": [
// {
// "instrument_id": "BTC-USDT",
// "asks": [
// ["4598.8", "0", "0"],
// ["4599.1", "0", "0"],
// ["4600.3", "0", "0"],
// ],
// "bids": [
// ["4598.5", "0.08", "1"],
// ["4598.2", "0.0337323", "1"],
// ["4598.1", "0.12681801", "3"],
// ],
// "timestamp": "2020-03-16T11:20:35.139Z",
// "checksum": 740786981
// }
// ]
// }
//
const action = this.safeString(message, 'action');
const data = this.safeValue(message, 'data', []);
const table = this.safeString(message, 'table');
if (action === 'partial') {
for (let i = 0; i < data.length; i++) {
const update = data[i];
const marketId = this.safeString(update, 'instrument_id');
const market = this.safeMarket(marketId);
const symbol = market['symbol'];
const options = this.safeValue(this.options, 'watchOrderBook', {});
// default limit is 400 bidasks
const limit = this.safeInteger(options, 'limit', 400);
const orderbook = this.orderBook({}, limit);
this.orderbooks[symbol] = orderbook;
this.handleOrderBookMessage(client, update, orderbook);
const messageHash = table + ':' + marketId;
client.resolve(orderbook, messageHash);
}
}
else {
for (let i = 0; i < data.length; i++) {
const update = data[i];
const marketId = this.safeString(update, 'instrument_id');
const market = this.safeMarket(marketId);
const symbol = market['symbol'];
if (symbol in this.orderbooks) {
const orderbook = this.orderbooks[symbol];
this.handleOrderBookMessage(client, update, orderbook);
const messageHash = table + ':' + marketId;
client.resolve(orderbook, messageHash);
}
}
}
return message;
}
async authenticate(params = {}) {
this.checkRequiredCredentials();
const url = this.urls['api']['ws'];
const messageHash = 'login';
const client = this.client(url);
let future = this.safeValue(client.subscriptions, messageHash);
if (future === undefined) {
future = client.future('authenticated');
const timestamp = this.seconds().toString();
const method = 'GET';
const path = '/users/self/verify';
const auth = timestamp + method + path;
const signature = this.hmac(this.encode(auth), this.encode(this.secret), sha256, 'base64');
const request = {
'op': messageHash,
'args': [
this.apiKey,
this.password,
timestamp,
signature,
],
};
this.spawn(this.watch, url, messageHash, request, messageHash, future);
}
return await future;
}
/**
* @method
* @name okcoin#watchBalance
* @description watch balance and get the amount of funds available for trading or funds locked in orders
* @see https://www.okcoin.com/docs-v5/en/#websocket-api-private-channel-account-channel
* @param {object} [params] extra parameters specific to the exchange API endpoint
* @returns {object} a [balance structure]{@link https://docs.ccxt.com/#/?id=balance-structure}
*/
async watchBalance(params = {}) {
const defaultType = this.safeString2(this.options, 'watchBalance', 'defaultType');
const type = this.safeString(params, 'type', defaultType);
if (type === undefined) {
throw new ArgumentsRequired(this.id + " watchBalance requires a type parameter (one of 'spot', 'margin', 'futures', 'swap')");
}
// const query = this.omit (params, 'type');
const negotiation = await this.authenticate();
return await this.subscribeToUserAccount(negotiation, params);
}
async subscribeToUserAccount(negotiation, params = {}) {
const defaultType = this.safeString2(this.options, 'watchBalance', 'defaultType');
const type = this.safeString(params, 'type', defaultType);
if (type === undefined) {
throw new ArgumentsRequired(this.id + " watchBalance requires a type parameter (one of 'spot', 'margin', 'futures', 'swap')");
}
await this.loadMarkets();
const currencyId = this.safeString(params, 'currency');
const code = this.safeString(params, 'code', this.safeCurrencyCode(currencyId));
let currency = undefined;
if (code !== undefined) {
currency = this.currency(code);
}
const symbol = this.safeString(params, 'symbol');
const market = this.market(symbol);
const marketUndefined = (market === undefined);
const currencyUndefined = (currency === undefined);
if (type === 'spot') {
if (currencyUndefined) {
throw new ArgumentsRequired(this.id + " watchBalance requires a 'currency' (id) or a unified 'code' parameter for " + type + ' accounts');
}
}
else if ((type === 'margin') || (type === 'swap') || (type === 'option')) {
if (marketUndefined) {
throw new ArgumentsRequired(this.id + " watchBalance requires a 'instrument_id' (id) or a unified 'symbol' parameter for " + type + ' accounts');
}
}
else if (type === 'futures') {
if (currencyUndefined && marketUndefined) {
throw new ArgumentsRequired(this.id + " watchBalance requires a 'currency' (id), or unified 'code', or 'instrument_id' (id), or unified 'symbol' parameter for " + type + ' accounts');
}
}
let suffix = undefined;
if (!currencyUndefined) {
suffix = currency['id'];
}
else if (!marketUndefined) {
suffix = market['id'];
}
const accountType = (type === 'margin') ? 'spot' : type;
const account = (type === 'margin') ? 'margin_account' : 'account';
const messageHash = accountType + '/' + account;
const subscriptionHash = messageHash + ':' + suffix;
const url = this.urls['api']['ws'];
const request = {
'op': 'subscribe',
'args': [subscriptionHash],
};
const query = this.omit(params, ['currency', 'code', 'instrument_id', 'symbol', 'type']);
return await this.watch(url, messageHash, this.deepExtend(request, query), subscriptionHash);
}
handleBalance(client, message) {
//
// spot
//
// {
// "table": "spot/account",
// "data": [
// {
// "available": "11.044827320825",
// "currency": "USDT",
// "id": '',
// "balance": "11.044827320825",
// "hold": "0"
// }
// ]
// }
//
// margin
//
// {
// "table": "spot/margin_account",
// "data": [
// {
// "maint_margin_ratio": "0.08",
// "liquidation_price": "0",
// "currency:USDT": { available: "0", balance: "0", borrowed: "0", hold: "0", lending_fee: "0" },
// "tiers": "1",
// "instrument_id": "ETH-USDT",
// "currency:ETH": { available: "0", balance: "0", borrowed: "0", hold: "0", lending_fee: "0" }
// }
// ]
// }
//
const table = this.safeString(message, 'table');
const parts = table.split('/');
const data = this.safeValue(message, 'data', []);
this.balance['info'] = data;
let type = this.safeString(parts, 0);
if (type === 'spot') {
const part1 = this.safeString(parts, 1);
if (part1 === 'margin_account') {
type = 'margin';
}
}
for (let i = 0; i < data.length; i++) {
const balance = this.parseBalanceByType(type, data);
const oldBalance = this.safeValue(this.balance, type, {});
const newBalance = this.deepExtend(oldBalance, balance);
this.balance[type] = this.safeBalance(newBalance);
client.resolve(this.balance[type], table);
}
}
handleSubscriptionStatus(client, message) {
//
// {"event":"subscribe","channel":"spot/depth:BTC-USDT"}
//
// const channel = this.safeString (message, 'channel');
// client.subscriptions[channel] = message;
return message;
}
handleAuthenticate(client, message) {
//
// { event: "login", success: true }
//
client.resolve(message, 'authenticated');
return message;
}
ping(client) {
// okex does not support built-in ws protocol-level ping-pong
// instead it requires custom text-based ping-pong
return 'ping';
}
handlePong(client, message) {
client.lastPong = this.milliseconds();
return message;
}
handleErrorMessage(client, message) {
//
// { event: "error", message: "Invalid sign", errorCode: 30013 }
// {"event":"error","message":"Unrecognized request: {\"event\":\"subscribe\",\"channel\":\"spot/depth:BTC-USDT\"}","errorCode":30039}
// { event: "error", message: "Channel spot/order doesn't exist", errorCode: 30040 }
//
const errorCode = this.safeString(message, 'errorCode');
try {
if (errorCode !== undefined) {
const feedback = this.id + ' ' + this.json(message);
this.throwExactlyMatchedException(this.exceptions['exact'], errorCode, feedback);
const messageString = this.safeValue(message, 'message');
if (messageString !== undefined) {
this.throwBroadlyMatchedException(this.exceptions['broad'], messageString, feedback);
}
}
}
catch (e) {
if (e instanceof AuthenticationError) {
client.reject(e, 'authenticated');
const method = 'login';
if (method in client.subscriptions) {
delete client.subscriptions[method];
}
return false;
}
}
return message;
}
handleMessage(client, message) {
if (!this.handleErrorMessage(client, message)) {
return;
}
//
// {"event":"error","message":"Unrecognized request: {\"event\":\"subscribe\",\"channel\":\"spot/depth:BTC-USDT\"}","errorCode":30039}
// {"event":"subscribe","channel":"spot/depth:BTC-USDT"}
// {
// "table": "spot/depth",
// "action": "partial",
// "data": [
// {
// "instrument_id": "BTC-USDT",
// "asks": [
// ["5301.8", "0.03763319", "1"],
// ["5302.4", "0.00305", "2"],
// ],
// "bids": [
// ["5301.7", "0.58911427", "6"],
// ["5301.6", "0.01222922", "4"],
// ],
// "timestamp": "2020-03-16T03:25:00.440Z",
// "checksum": -2088736623
// }
// ]
// }
// {
// "table":"spot/order",
// "data":[
// {
// "client_oid":"",
// "filled_notional":"0",
// "filled_size":"0",
// "instrument_id":"ETC-USDT",
// "last_fill_px":"0",
// "last_fill_qty":"0",
// "last_fill_time":"1970-01-01T00:00:00.000Z",
// "margin_trading":"1",
// "notional":"",
// "order_id":"3576398568830976",
// "order_type":"0",
// "price":"5.826",
// "side":"buy",
// "size":"0.1",
// "state":"0",
// "status":"open",
// "fee_currency":"ETC",
// "fee":"-0.01",
// "rebate_currency":"open",
// "rebate":"0.05",
// "timestamp":"2019-09-24T06:45:11.394Z",
// "type":"limit",
// "created_at":"2019-09-24T06:45:11.394Z"
// }
// ]
// }
//
if (message === 'pong') {
this.handlePong(client, message);
return;
}
const table = this.safeString(message, 'table');
if (table === undefined) {
const event = this.safeString(message, 'event');
if (event !== undefined) {
const methods = {
// 'info': this.handleSystemStatus,
// 'book': 'handleOrderBook',
'login': this.handleAuthenticate,
'subscribe': this.handleSubscriptionStatus,
};
const method = this.safeValue(methods, event);
if (method !== undefined) {
method.call(this, client, message);
}
}
}
else {
const parts = table.split('/');
const name = this.safeString(parts, 1);
const methods = {
'depth': this.handleOrderBook,
'depth5': this.handleOrderBook,
'depth_l2_tbt': this.handleOrderBook,
'ticker': this.handleTicker,
'trade': this.handleTrade,
'account': this.handleBalance,
'margin_account': this.handleBalance,
'order': this.handleOrders,
// ...
};
let method = this.safeValue(methods, name);
if (name.indexOf('candle') >= 0) {
method = this.handleOHLCV;
}
if (method !== undefined) {
method.call(this, client, message);
}
}
}
}