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A JavaScript / Python / PHP cryptocurrency trading library with support for 90+ exchanges

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"use strict"; // --------------------------------------------------------------------------- var _keys = require('babel-runtime/core-js/object/keys'); var _keys2 = _interopRequireDefault(_keys); var _asyncToGenerator2 = require('babel-runtime/helpers/asyncToGenerator'); var _asyncToGenerator3 = _interopRequireDefault(_asyncToGenerator2); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } const Exchange = require('./base/Exchange'); const { ExchangeError } = require('./base/errors'); // --------------------------------------------------------------------------- module.exports = class nova extends Exchange { describe() { return this.deepExtend(super.describe(), { 'id': 'nova', 'name': 'Novaexchange', 'countries': 'TZ', // Tanzania 'rateLimit': 2000, 'version': 'v2', 'hasCORS': false, 'urls': { 'logo': 'https://user-images.githubusercontent.com/1294454/30518571-78ca0bca-9b8a-11e7-8840-64b83a4a94b2.jpg', 'api': 'https://novaexchange.com/remote', 'www': 'https://novaexchange.com', 'doc': 'https://novaexchange.com/remote/faq' }, 'api': { 'public': { 'get': ['markets/', 'markets/{basecurrency}/', 'market/info/{pair}/', 'market/orderhistory/{pair}/', 'market/openorders/{pair}/buy/', 'market/openorders/{pair}/sell/', 'market/openorders/{pair}/both/', 'market/openorders/{pair}/{ordertype}/'] }, 'private': { 'post': ['getbalances/', 'getbalance/{currency}/', 'getdeposits/', 'getwithdrawals/', 'getnewdepositaddress/{currency}/', 'getdepositaddress/{currency}/', 'myopenorders/', 'myopenorders_market/{pair}/', 'cancelorder/{orderid}/', 'withdraw/{currency}/', 'trade/{pair}/', 'tradehistory/', 'getdeposithistory/', 'getwithdrawalhistory/', 'walletstatus/', 'walletstatus/{currency}/'] } } }); } fetchMarkets() { var _this = this; return (0, _asyncToGenerator3.default)(function* () { let response = yield _this.publicGetMarkets(); let markets = response['markets']; let result = []; for (let i = 0; i < markets.length; i++) { let market = markets[i]; if (!market['disabled']) { let id = market['marketname']; let [quote, base] = id.split('_'); let symbol = base + '/' + quote; result.push({ 'id': id, 'symbol': symbol, 'base': base, 'quote': quote, 'info': market }); } } return result; })(); } fetchOrderBook(symbol, params = {}) { var _this2 = this; return (0, _asyncToGenerator3.default)(function* () { yield _this2.loadMarkets(); let orderbook = yield _this2.publicGetMarketOpenordersPairBoth(_this2.extend({ 'pair': _this2.marketId(symbol) }, params)); return _this2.parseOrderBook(orderbook, undefined, 'buyorders', 'sellorders', 'price', 'amount'); })(); } fetchTicker(symbol, params = {}) { var _this3 = this; return (0, _asyncToGenerator3.default)(function* () { yield _this3.loadMarkets(); let response = yield _this3.publicGetMarketInfoPair(_this3.extend({ 'pair': _this3.marketId(symbol) }, params)); let ticker = response['markets'][0]; let timestamp = _this3.milliseconds(); return { 'symbol': symbol, 'timestamp': timestamp, 'datetime': _this3.iso8601(timestamp), 'high': parseFloat(ticker['high24h']), 'low': parseFloat(ticker['low24h']), 'bid': _this3.safeFloat(ticker, 'bid'), 'ask': _this3.safeFloat(ticker, 'ask'), 'vwap': undefined, 'open': undefined, 'close': undefined, 'first': undefined, 'last': parseFloat(ticker['last_price']), 'change': parseFloat(ticker['change24h']), 'percentage': undefined, 'average': undefined, 'baseVolume': undefined, 'quoteVolume': parseFloat(ticker['volume24h']), 'info': ticker }; })(); } parseTrade(trade, market) { let timestamp = trade['unix_t_datestamp'] * 1000; return { 'info': trade, 'timestamp': timestamp, 'datetime': this.iso8601(timestamp), 'symbol': market['symbol'], 'id': undefined, 'order': undefined, 'type': undefined, 'side': trade['tradetype'].toLowerCase(), 'price': parseFloat(trade['price']), 'amount': parseFloat(trade['amount']) }; } fetchTrades(symbol, since = undefined, limit = undefined, params = {}) { var _this4 = this; return (0, _asyncToGenerator3.default)(function* () { yield _this4.loadMarkets(); let market = _this4.market(symbol); let response = yield _this4.publicGetMarketOrderhistoryPair(_this4.extend({ 'pair': market['id'] }, params)); return _this4.parseTrades(response['items'], market, since, limit); })(); } fetchBalance(params = {}) { var _this5 = this; return (0, _asyncToGenerator3.default)(function* () { yield _this5.loadMarkets(); let response = yield _this5.privatePostGetbalances(); let balances = response['balances']; let result = { 'info': response }; for (let b = 0; b < balances.length; b++) { let balance = balances[b]; let currency = balance['currency']; let lockbox = parseFloat(balance['amount_lockbox']); let trades = parseFloat(balance['amount_trades']); let account = { 'free': parseFloat(balance['amount']), 'used': _this5.sum(lockbox, trades), 'total': parseFloat(balance['amount_total']) }; result[currency] = account; } return _this5.parseBalance(result); })(); } createOrder(symbol, type, side, amount, price = undefined, params = {}) { var _this6 = this; return (0, _asyncToGenerator3.default)(function* () { if (type == 'market') throw new ExchangeError(_this6.id + ' allows limit orders only'); yield _this6.loadMarkets(); amount = amount.toString(); price = price.toString(); let market = _this6.market(symbol); let order = { 'tradetype': side.toUpperCase(), 'tradeamount': amount, 'tradeprice': price, 'tradebase': 1, 'pair': market['id'] }; let response = yield _this6.privatePostTradePair(_this6.extend(order, params)); return { 'info': response, 'id': undefined }; })(); } cancelOrder(id, symbol = undefined, params = {}) { var _this7 = this; return (0, _asyncToGenerator3.default)(function* () { return yield _this7.privatePostCancelorder(_this7.extend({ 'orderid': id }, params)); })(); } sign(path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) { let url = this.urls['api'] + '/' + this.version + '/'; if (api == 'private') url += api + '/'; url += this.implodeParams(path, params); let query = this.omit(params, this.extractParams(path)); if (api == 'public') { if ((0, _keys2.default)(query).length) url += '?' + this.urlencode(query); } else { this.checkRequiredCredentials(); let nonce = this.nonce().toString(); url += '?' + this.urlencode({ 'nonce': nonce }); let signature = this.hmac(this.encode(url), this.encode(this.secret), 'sha512', 'base64'); body = this.urlencode(this.extend({ 'apikey': this.apiKey, 'signature': signature }, query)); headers = { 'Content-Type': 'application/x-www-form-urlencoded' }; } return { 'url': url, 'method': method, 'body': body, 'headers': headers }; } request(path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) { var _this8 = this; return (0, _asyncToGenerator3.default)(function* () { let response = yield _this8.fetch2(path, api, method, params, headers, body); if ('status' in response) if (response['status'] != 'success') throw new ExchangeError(_this8.id + ' ' + _this8.json(response)); return response; })(); } };