blocke
Version:
Command-line tool to query the blockchain for a variety of cryptos. View blocks, transactions, and accounts (where applicable).
50 lines (41 loc) • 1.68 kB
JavaScript
/*
Copyright (C) 2017 BikBikBikBikBik
This file is part of blocke.
blocke is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
blocke is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with blocke. If not, see <http://www.gnu.org/licenses/>.
*/
const request = require('request-promise');
const resources = require('./resources');
class ApiClientBase {
constructor(apiBaseAddress) {
this._apiBaseAddress = apiBaseAddress;
}
executeRequest(uriSuffix, objectName) {
const requestOptions = {
json: true,
timeout: 15 * 1000,
uri: `${this._apiBaseAddress}${uriSuffix}`
};
return request(requestOptions).catch((err) => {
if ([ 400, 404 ].includes(err.statusCode)) {
return Promise.reject(resources.generateObjectNotFoundMessage(objectName));
}
if (err.statusCode === 429) {
return Promise.reject(resources.tooManyRequestsMessage);
}
if (err.statusCode === undefined && typeof(err.error) === 'object' && [ 'ESOCKETTIMEDOUT', 'ETIMEDOUT' ].includes(err.error.code)) {
return Promise.reject(err.error.connect === true ? resources.connectionTimeoutMessage : resources.readTimeoutMessage);
}
return Promise.reject(resources.generateGenericObjectErrorMessage(objectName));
});
}
}
module.exports = ApiClientBase;