ccxt-compiled
Version:
A JavaScript / Python / PHP cryptocurrency trading library with support for 90+ exchanges
237 lines (209 loc) • 9.05 kB
JavaScript
;
// ---------------------------------------------------------------------------
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 gemini extends Exchange {
describe() {
return this.deepExtend(super.describe(), {
'id': 'gemini',
'name': 'Gemini',
'countries': 'US',
'rateLimit': 1500, // 200 for private API
'version': 'v1',
'hasCORS': false,
'urls': {
'logo': 'https://user-images.githubusercontent.com/1294454/27816857-ce7be644-6096-11e7-82d6-3c257263229c.jpg',
'api': 'https://api.gemini.com',
'www': 'https://gemini.com',
'doc': 'https://docs.gemini.com/rest-api'
},
'api': {
'public': {
'get': ['symbols', 'pubticker/{symbol}', 'book/{symbol}', 'trades/{symbol}', 'auction/{symbol}', 'auction/{symbol}/history']
},
'private': {
'post': ['order/new', 'order/cancel', 'order/cancel/session', 'order/cancel/all', 'order/status', 'orders', 'mytrades', 'tradevolume', 'balances', 'deposit/{currency}/newAddress', 'withdraw/{currency}', 'heartbeat']
}
}
});
}
fetchMarkets() {
var _this = this;
return (0, _asyncToGenerator3.default)(function* () {
let markets = yield _this.publicGetSymbols();
let result = [];
for (let p = 0; p < markets.length; p++) {
let id = markets[p];
let market = id;
let uppercase = market.toUpperCase();
let base = uppercase.slice(0, 3);
let quote = uppercase.slice(3, 6);
let symbol = base + '/' + quote;
result.push({
'id': id,
'symbol': symbol,
'base': base,
'quote': quote,
'info': market,
'taker': 0.0025
});
}
return result;
})();
}
fetchOrderBook(symbol, params = {}) {
var _this2 = this;
return (0, _asyncToGenerator3.default)(function* () {
yield _this2.loadMarkets();
let orderbook = yield _this2.publicGetBookSymbol(_this2.extend({
'symbol': _this2.marketId(symbol)
}, params));
return _this2.parseOrderBook(orderbook, undefined, 'bids', 'asks', 'price', 'amount');
})();
}
fetchTicker(symbol, params = {}) {
var _this3 = this;
return (0, _asyncToGenerator3.default)(function* () {
yield _this3.loadMarkets();
let market = _this3.market(symbol);
let ticker = yield _this3.publicGetPubtickerSymbol(_this3.extend({
'symbol': market['id']
}, params));
let timestamp = ticker['volume']['timestamp'];
let baseVolume = market['base'];
let quoteVolume = market['quote'];
return {
'symbol': symbol,
'timestamp': timestamp,
'datetime': _this3.iso8601(timestamp),
'high': undefined,
'low': undefined,
'bid': parseFloat(ticker['bid']),
'ask': parseFloat(ticker['ask']),
'vwap': undefined,
'open': undefined,
'close': undefined,
'first': undefined,
'last': parseFloat(ticker['last']),
'change': undefined,
'percentage': undefined,
'average': undefined,
'baseVolume': parseFloat(ticker['volume'][baseVolume]),
'quoteVolume': parseFloat(ticker['volume'][quoteVolume]),
'info': ticker
};
})();
}
parseTrade(trade, market) {
let timestamp = trade['timestampms'];
return {
'id': trade['tid'].toString(),
'info': trade,
'timestamp': timestamp,
'datetime': this.iso8601(timestamp),
'symbol': market['symbol'],
'type': undefined,
'side': trade['type'],
'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.publicGetTradesSymbol(_this4.extend({
'symbol': market['id']
}, params));
return _this4.parseTrades(response, market, since, limit);
})();
}
fetchBalance(params = {}) {
var _this5 = this;
return (0, _asyncToGenerator3.default)(function* () {
yield _this5.loadMarkets();
let balances = yield _this5.privatePostBalances();
let result = { 'info': balances };
for (let b = 0; b < balances.length; b++) {
let balance = balances[b];
let currency = balance['currency'];
let account = {
'free': parseFloat(balance['available']),
'used': 0.0,
'total': parseFloat(balance['amount'])
};
account['used'] = account['total'] - account['free'];
result[currency] = account;
}
return _this5.parseBalance(result);
})();
}
createOrder(symbol, type, side, amount, price = undefined, params = {}) {
var _this6 = this;
return (0, _asyncToGenerator3.default)(function* () {
yield _this6.loadMarkets();
if (type == 'market') throw new ExchangeError(_this6.id + ' allows limit orders only');
let nonce = _this6.nonce();
let order = {
'client_order_id': nonce.toString(),
'symbol': _this6.marketId(symbol),
'amount': amount.toString(),
'price': price.toString(),
'side': side,
'type': 'exchange limit' // gemini allows limit orders only
};
let response = yield _this6.privatePostOrderNew(_this6.extend(order, params));
return {
'info': response,
'id': response['order_id']
};
})();
}
cancelOrder(id, symbol = undefined, params = {}) {
var _this7 = this;
return (0, _asyncToGenerator3.default)(function* () {
yield _this7.loadMarkets();
return yield _this7.privatePostCancelOrder({ 'order_id': id });
})();
}
sign(path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
let url = '/' + this.version + '/' + 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();
let request = this.extend({
'request': url,
'nonce': nonce
}, query);
let payload = this.json(request);
payload = this.stringToBase64(this.encode(payload));
let signature = this.hmac(payload, this.encode(this.secret), 'sha384');
headers = {
'Content-Type': 'text/plain',
'X-GEMINI-APIKEY': this.apiKey,
'X-GEMINI-PAYLOAD': this.decode(payload),
'X-GEMINI-SIGNATURE': signature
};
}
url = this.urls['api'] + url;
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 ('result' in response) if (response['result'] == 'error') throw new ExchangeError(_this8.id + ' ' + _this8.json(response));
return response;
})();
}
};