478 lines
18 KiB
JavaScript
478 lines
18 KiB
JavaScript
'use strict';
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// ---------------------------------------------------------------------------
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const Exchange = require ('./base/Exchange');
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const { ExchangeError, ArgumentsRequired } = require ('./base/errors');
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// ---------------------------------------------------------------------------
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module.exports = class luno extends Exchange {
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describe () {
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return this.deepExtend (super.describe (), {
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'id': 'luno',
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'name': 'luno',
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'countries': [ 'GB', 'SG', 'ZA' ],
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'rateLimit': 1000,
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'version': '1',
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'has': {
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'CORS': false,
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'fetchTickers': true,
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'fetchOrder': true,
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'fetchOrders': true,
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'fetchOpenOrders': true,
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'fetchClosedOrders': true,
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'fetchMyTrades': true,
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'fetchTradingFee': true,
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'fetchTradingFees': true,
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},
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'urls': {
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'referral': 'https://www.luno.com/invite/44893A',
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'logo': 'https://user-images.githubusercontent.com/1294454/27766607-8c1a69d8-5ede-11e7-930c-540b5eb9be24.jpg',
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'api': 'https://api.mybitx.com/api',
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'www': 'https://www.luno.com',
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'doc': [
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'https://www.luno.com/en/api',
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'https://npmjs.org/package/bitx',
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'https://github.com/bausmeier/node-bitx',
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],
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},
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'api': {
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'public': {
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'get': [
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'orderbook',
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'orderbook_top',
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'ticker',
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'tickers',
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'trades',
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],
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},
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'private': {
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'get': [
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'accounts/{id}/pending',
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'accounts/{id}/transactions',
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'balance',
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'fee_info',
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'funding_address',
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'listorders',
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'listtrades',
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'orders/{id}',
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'quotes/{id}',
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'withdrawals',
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'withdrawals/{id}',
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],
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'post': [
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'accounts',
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'postorder',
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'marketorder',
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'stoporder',
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'funding_address',
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'withdrawals',
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'send',
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'quotes',
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'oauth2/grant',
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],
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'put': [
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'quotes/{id}',
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],
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'delete': [
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'quotes/{id}',
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'withdrawals/{id}',
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],
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},
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},
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});
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}
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async fetchMarkets (params = {}) {
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const response = await this.publicGetTickers (params);
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const result = [];
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for (let i = 0; i < response['tickers'].length; i++) {
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const market = response['tickers'][i];
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const id = market['pair'];
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const baseId = id.slice (0, 3);
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const quoteId = id.slice (3, 6);
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const base = this.safeCurrencyCode (baseId);
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const quote = this.safeCurrencyCode (quoteId);
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const symbol = base + '/' + quote;
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result.push ({
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'id': id,
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'symbol': symbol,
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'base': base,
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'quote': quote,
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'baseId': baseId,
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'quoteId': quoteId,
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'info': market,
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'active': undefined,
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'precision': this.precision,
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'limits': this.limits,
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});
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}
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return result;
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}
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async fetchBalance (params = {}) {
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await this.loadMarkets ();
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const response = await this.privateGetBalance (params);
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const wallets = this.safeValue (response, 'balance', []);
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const result = { 'info': response };
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for (let i = 0; i < wallets.length; i++) {
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const wallet = wallets[i];
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const currencyId = this.safeString (wallet, 'asset');
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const code = this.safeCurrencyCode (currencyId);
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const reserved = this.safeFloat (wallet, 'reserved');
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const unconfirmed = this.safeFloat (wallet, 'unconfirmed');
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const balance = this.safeFloat (wallet, 'balance');
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const account = this.account ();
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account['used'] = this.sum (reserved, unconfirmed);
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account['total'] = this.sum (balance, unconfirmed);
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result[code] = account;
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}
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return this.parseBalance (result);
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}
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async fetchOrderBook (symbol, limit = undefined, params = {}) {
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await this.loadMarkets ();
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let method = 'publicGetOrderbook';
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if (limit !== undefined) {
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if (limit <= 100) {
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method += 'Top'; // get just the top of the orderbook when limit is low
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}
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}
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const request = {
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'pair': this.marketId (symbol),
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};
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const response = await this[method] (this.extend (request, params));
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const timestamp = this.safeInteger (response, 'timestamp');
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return this.parseOrderBook (response, timestamp, 'bids', 'asks', 'price', 'volume');
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}
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parseOrder (order, market = undefined) {
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//
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// {
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// "base": "string",
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// "completed_timestamp": "string",
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// "counter": "string",
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// "creation_timestamp": "string",
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// "expiration_timestamp": "string",
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// "fee_base": "string",
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// "fee_counter": "string",
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// "limit_price": "string",
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// "limit_volume": "string",
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// "order_id": "string",
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// "pair": "string",
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// "state": "PENDING",
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// "type": "BID"
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// }
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//
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const timestamp = this.safeInteger (order, 'creation_timestamp');
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const status = (order['state'] === 'PENDING') ? 'open' : 'closed';
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const side = (order['type'] === 'ASK') ? 'sell' : 'buy';
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const marketId = this.safeString (order, 'pair');
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let symbol = undefined;
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if (marketId in this.markets_by_id) {
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market = this.markets_by_id[marketId];
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}
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if (market !== undefined) {
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symbol = market['symbol'];
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}
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const price = this.safeFloat (order, 'limit_price');
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const amount = this.safeFloat (order, 'limit_volume');
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const quoteFee = this.safeFloat (order, 'fee_counter');
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const baseFee = this.safeFloat (order, 'fee_base');
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const filled = this.safeFloat (order, 'base');
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const cost = this.safeFloat (order, 'counter');
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let remaining = undefined;
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if (amount !== undefined) {
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if (filled !== undefined) {
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remaining = Math.max (0, amount - filled);
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}
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}
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const fee = { 'currency': undefined };
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if (quoteFee) {
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fee['cost'] = quoteFee;
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if (market !== undefined) {
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fee['currency'] = market['quote'];
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}
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} else {
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fee['cost'] = baseFee;
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if (market !== undefined) {
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fee['currency'] = market['base'];
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}
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}
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const id = this.safeString (order, 'order_id');
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return {
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'id': id,
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'clientOrderId': undefined,
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'datetime': this.iso8601 (timestamp),
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'timestamp': timestamp,
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'lastTradeTimestamp': undefined,
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'status': status,
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'symbol': symbol,
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'type': undefined,
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'side': side,
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'price': price,
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'amount': amount,
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'filled': filled,
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'cost': cost,
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'remaining': remaining,
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'trades': undefined,
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'fee': fee,
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'info': order,
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'average': undefined,
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};
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}
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async fetchOrder (id, symbol = undefined, params = {}) {
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await this.loadMarkets ();
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const request = {
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'id': id,
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};
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const response = await this.privateGetOrdersId (this.extend (request, params));
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return this.parseOrder (response);
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}
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async fetchOrdersByState (state = undefined, symbol = undefined, since = undefined, limit = undefined, params = {}) {
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await this.loadMarkets ();
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const request = {};
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let market = undefined;
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if (state !== undefined) {
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request['state'] = state;
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}
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if (symbol !== undefined) {
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market = this.market (symbol);
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request['pair'] = market['id'];
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}
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const response = await this.privateGetListorders (this.extend (request, params));
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const orders = this.safeValue (response, 'orders', []);
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return this.parseOrders (orders, market, since, limit);
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}
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async fetchOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
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return await this.fetchOrdersByState (undefined, symbol, since, limit, params);
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}
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async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
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return await this.fetchOrdersByState ('PENDING', symbol, since, limit, params);
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}
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async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
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return await this.fetchOrdersByState ('COMPLETE', symbol, since, limit, params);
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}
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parseTicker (ticker, market = undefined) {
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const timestamp = this.safeInteger (ticker, 'timestamp');
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let symbol = undefined;
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if (market) {
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symbol = market['symbol'];
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}
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const last = this.safeFloat (ticker, 'last_trade');
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return {
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'symbol': symbol,
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'timestamp': timestamp,
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'datetime': this.iso8601 (timestamp),
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'high': undefined,
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'low': undefined,
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'bid': this.safeFloat (ticker, 'bid'),
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'bidVolume': undefined,
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'ask': this.safeFloat (ticker, 'ask'),
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'askVolume': undefined,
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'vwap': undefined,
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'open': undefined,
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'close': last,
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'last': last,
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'previousClose': undefined,
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'change': undefined,
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'percentage': undefined,
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'average': undefined,
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'baseVolume': this.safeFloat (ticker, 'rolling_24_hour_volume'),
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'quoteVolume': undefined,
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'info': ticker,
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};
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}
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async fetchTickers (symbols = undefined, params = {}) {
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await this.loadMarkets ();
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const response = await this.publicGetTickers (params);
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const tickers = this.indexBy (response['tickers'], 'pair');
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const ids = Object.keys (tickers);
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const result = {};
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for (let i = 0; i < ids.length; i++) {
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const id = ids[i];
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const market = this.markets_by_id[id];
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const symbol = market['symbol'];
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const ticker = tickers[id];
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result[symbol] = this.parseTicker (ticker, market);
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}
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return result;
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}
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async fetchTicker (symbol, params = {}) {
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await this.loadMarkets ();
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const market = this.market (symbol);
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const request = {
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'pair': market['id'],
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};
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const response = await this.publicGetTicker (this.extend (request, params));
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return this.parseTicker (response, market);
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}
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parseTrade (trade, market) {
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// For public trade data (is_buy === True) indicates 'buy' side but for private trade data
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// is_buy indicates maker or taker. The value of "type" (ASK/BID) indicate sell/buy side.
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// Private trade data includes ID field which public trade data does not.
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const orderId = this.safeString (trade, 'order_id');
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let takerOrMaker = undefined;
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let side = undefined;
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if (orderId !== undefined) {
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side = (trade['type'] === 'ASK') ? 'sell' : 'buy';
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if (side === 'sell' && trade['is_buy']) {
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takerOrMaker = 'maker';
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} else if (side === 'buy' && !trade['is_buy']) {
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takerOrMaker = 'maker';
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} else {
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takerOrMaker = 'taker';
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}
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} else {
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side = trade['is_buy'] ? 'buy' : 'sell';
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}
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const feeBase = this.safeFloat (trade, 'fee_base');
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const feeCounter = this.safeFloat (trade, 'fee_counter');
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let feeCurrency = undefined;
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let feeCost = undefined;
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if (feeBase !== undefined) {
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if (feeBase !== 0.0) {
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feeCurrency = market['base'];
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feeCost = feeBase;
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}
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} else if (feeCounter !== undefined) {
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if (feeCounter !== 0.0) {
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feeCurrency = market['quote'];
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feeCost = feeCounter;
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}
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}
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const timestamp = this.safeInteger (trade, 'timestamp');
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return {
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'info': trade,
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'id': undefined,
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'timestamp': timestamp,
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'datetime': this.iso8601 (timestamp),
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'symbol': market['symbol'],
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'order': orderId,
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'type': undefined,
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'side': side,
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'takerOrMaker': takerOrMaker,
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'price': this.safeFloat (trade, 'price'),
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'amount': this.safeFloat (trade, 'volume'),
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// Does not include potential fee costs
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'cost': this.safeFloat (trade, 'counter'),
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'fee': {
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'cost': feeCost,
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'currency': feeCurrency,
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},
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};
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}
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async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
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await this.loadMarkets ();
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const market = this.market (symbol);
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const request = {
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'pair': market['id'],
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};
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if (since !== undefined) {
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request['since'] = since;
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}
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const response = await this.publicGetTrades (this.extend (request, params));
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const trades = this.safeValue (response, 'trades', []);
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return this.parseTrades (trades, market, since, limit);
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}
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async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
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if (symbol === undefined) {
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throw new ArgumentsRequired (this.id + ' fetchMyTrades requires a symbol argument');
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}
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await this.loadMarkets ();
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const market = this.market (symbol);
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const request = {
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'pair': market['id'],
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};
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if (since !== undefined) {
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request['since'] = since;
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}
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if (limit !== undefined) {
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request['limit'] = limit;
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}
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const response = await this.privateGetListtrades (this.extend (request, params));
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const trades = this.safeValue (response, 'trades', []);
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return this.parseTrades (trades, market, since, limit);
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}
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async fetchTradingFees (params = {}) {
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await this.loadMarkets ();
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const response = await this.privateGetFeeInfo (params);
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return {
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'info': response,
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'maker': this.safeFloat (response, 'maker_fee'),
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'taker': this.safeFloat (response, 'taker_fee'),
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};
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}
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async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
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await this.loadMarkets ();
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let method = 'privatePost';
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const request = {
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'pair': this.marketId (symbol),
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};
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if (type === 'market') {
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method += 'Marketorder';
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request['type'] = side.toUpperCase ();
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if (side === 'buy') {
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request['counter_volume'] = amount;
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} else {
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request['base_volume'] = amount;
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}
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} else {
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method += 'Postorder';
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request['volume'] = amount;
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request['price'] = price;
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request['type'] = (side === 'buy') ? 'BID' : 'ASK';
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}
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const response = await this[method] (this.extend (request, params));
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return {
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'info': response,
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'id': response['order_id'],
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};
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}
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async cancelOrder (id, symbol = undefined, params = {}) {
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await this.loadMarkets ();
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const request = {
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'order_id': id,
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};
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return await this.privatePostStoporder (this.extend (request, params));
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}
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sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
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let url = this.urls['api'] + '/' + this.version + '/' + this.implodeParams (path, params);
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const query = this.omit (params, this.extractParams (path));
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if (Object.keys (query).length) {
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url += '?' + this.urlencode (query);
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}
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if (api === 'private') {
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this.checkRequiredCredentials ();
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let auth = this.encode (this.apiKey + ':' + this.secret);
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auth = this.stringToBase64 (auth);
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headers = { 'Authorization': 'Basic ' + this.decode (auth) };
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}
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return { 'url': url, 'method': method, 'body': body, 'headers': headers };
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}
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async request (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
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const response = await this.fetch2 (path, api, method, params, headers, body);
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if ('error' in response) {
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throw new ExchangeError (this.id + ' ' + this.json (response));
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}
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return response;
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}
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};
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