insomnia-node-libcurl/examples/file-upload-put.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 showing how to upload a file using PUT.
 */
var Curl = require('../lib/Curl'),
  path = require('path'),
  fs = require('fs'),
  crypto = require('crypto');

var curl = new Curl(),
  url = 'httpbin.org/put',
  fileSize = 10 * 1024, //1KB
  fileName = path.resolve(__dirname, 'upload.test');

//write random bytes to a file, this will be our upload file.
fs.writeFileSync(fileName, crypto.randomBytes(fileSize));

console.log('File: ', fs.readFileSync(fileName, 'base64'));

fs.open(fileName, 'r+', function(err, fd) {
  //enabling VERBOSE mode so we can get more details on what is going on.
  curl.setOpt(Curl.option.VERBOSE, 1);
  //set UPLOAD to a truthy value to enable PUT upload.
  curl.setOpt(Curl.option.UPLOAD, 1);
  //pass the file descriptor to the READDATA option
  // passing one invalid value here will cause an aborted by callback error.
  curl.setOpt(Curl.option.READDATA, fd);

  curl.setOpt(Curl.option.URL, url);

  curl.on('end', function(statusCode, body) {
    console.log(body);

    //remember to always close the file descriptor!
    fs.closeSync(fd);

    fs.unlinkSync(fileName);

    //the same for the curl instance, always close it when you don't need it anymore.
    this.close();
  });

  curl.on('error', function(err) {
    console.log(err);

    fs.closeSync(fd);
    fs.unlinkSync(fileName);
    this.close();
  });

  curl.perform();
});