insomnia-node-libcurl/examples/duplicate-handle.js

Node bindings for libcurl. Based on the work from node-curl.

/**
 * @author Jonathan Cardoso Machado
 * @license MIT
 * @copyright 2015, Jonathan Cardoso Machado
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do
 * so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

/**
 * Example just showing how to use the dupHandle method
 * to keep requesting the same stuff again and again but using new
 * instances instead of the same.
 */
var Curl = require('../lib/Curl'),
  querystring = require('querystring'),
  url = 'http://localhost/',
  data = { 'Hi!': 'This was sent using node-libcurl <3!' },
  curl,
  count = 0,
  iterations = 1e4,
  handles = [],
  shouldCopyCallbacks = true,
  shouldCopyEventListeners = true;

curl = new Curl();
curl.handleNumber = 0; //just so we know which handle is running
handles.push(curl);

//you can use a string as option
curl.setOpt('URL', url);
curl.setOpt('CONNECTTIMEOUT', 5);
curl.setOpt('FOLLOWLOCATION', true);
curl.setOpt('HTTPHEADER', ['User-Agent: node-libcurl/1.0']);
curl.setOpt('POSTFIELDS', querystring.stringify(data));

curl.on('end', function(statusCode, body, headers) {
  ++count;

  console.log('Handle #' + this.handleNumber + ' finished');

  console.log('Headers: ', headers);
  console.log('Status Code: ', statusCode);
  console.log('Body: ', body);

  if (count < iterations) {
    console.log('Duplicating handle #' + this.handleNumber);

    var duplicatedHandle = this.dupHandle(shouldCopyCallbacks, shouldCopyEventListeners);
    duplicatedHandle.handleNumber = count;
    handles.push(duplicatedHandle);

    console.log('Running handle #' + count);
    handles[count].perform();
  }

  console.log('Closing handle #' + this.handleNumber);
  this.close();
  handles[count - 1] = null;
});

curl.on('error', function(err, curlErrCode) {
  console.error('Err: ', err);
  console.error('Code: ', curlErrCode);

  this.close();
});

console.log('Running handle #' + count);
curl.perform();