insomnia-node-libcurl/examples/debug-callback.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 of how to use the DEBUGFUNCTION option
 */
var Curl = require('../lib/Curl');

var curl = new Curl(),
  url = process.argv[2] || 'http://www.google.com',
  infoTypes = Curl.info.debug,
  EOL = process.platform === 'win32' ? '\r\n' : '\n';

var debugCallback = function(infoType, content) {
  var text = '';

  switch (infoType) {
    case infoTypes.TEXT:
      text = content;
      break;
    case infoTypes.DATA_IN:
      text = '-- RECEIVING DATA: ' + EOL + content;
      break;
    case infoTypes.DATA_OUT:
      text = '-- SENDING DATA: ' + EOL + content;
      break;
    case infoTypes.HEADER_IN:
      text = '-- RECEIVING HEADER: ' + EOL + content;
      break;
    case infoTypes.HEADER_OUT:
      text = '-- SENDING HEADER: ' + EOL + content;
      break;
    case infoTypes.SSL_DATA_IN:
      text = '-- RECEIVING SSL DATA: ' + EOL + content;
      break;
    case infoTypes.SSL_DATA_OUT:
      text = '-- SENDING SSL DATA: ' + EOL + content;
      break;
  }

  console.log(text);

  return 0;
};

curl.setOpt('URL', url);
curl.setOpt('VERBOSE', true);
curl.setOpt('DEBUGFUNCTION', debugCallback);

curl.on('end', curl.close.bind(curl));
curl.on('error', curl.close.bind(curl));

curl.perform();