tlab-trading-toolkit
Version:
A trading toolkit for building advanced trading bots on the GDAX platform
46 lines (45 loc) • 2.66 kB
JavaScript
;
/***************************************************************************************************************************
* @license *
* Copyright 2017 Coinbase, Inc. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance *
* with the License. You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on *
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the *
* License for the specific language governing permissions and limitations under the License. *
***************************************************************************************************************************/
Object.defineProperty(exports, "__esModule", { value: true });
const crypto = require("crypto");
/**
* A generic API response handler.
* @param req A superagent request object
* @param meta
* @returns {Promise<Response>}
*/
function handleResponse(req, meta) {
return req.then((res) => {
if (res.status >= 200 && res.status < 300) {
return Promise.resolve(res.body);
}
const err = new Error(res.body.message);
err.details = res.body;
return Promise.reject(err);
}).catch((err) => {
const reason = err.response.body;
const error = Object.assign(new Error('An API request failed. ' + reason.message), meta);
error.reason = reason;
return Promise.reject(error);
});
}
exports.handleResponse = handleResponse;
function getSignature(auth, payload, algorithm = 'sha256') {
return crypto
.createHmac(algorithm, auth.secret)
.update(payload)
.digest('hex');
}
exports.getSignature = getSignature;