twitter_update_with_media.coffee

fs = require('fs')
path = require('path')
request = require('request')

class twitter_update_with_media
	constructor: (@auth_settings) ->
		@api_url = 'https://api.twitter.com/1.1/statuses/update_with_media.json'

	post: (status, file_path, callback) ->
		r = request.post(@api_url, oauth:@auth_settings, callback)
		form = r.form()
		form.append('status', status)
		form.append('media[]', fs.createReadStream(path.normalize(file_path)))

module.exports = twitter_update_with_media

twitter_update_with_media.js

// Generated by CoffeeScript 1.6.3
(function() {
  var fs, path, request, twitter_update_with_media;

  fs = require('fs');

  path = require('path');

  request = require('request');


  twitter_update_with_media = (function() {
    function twitter_update_with_media(auth_settings) {
      this.auth_settings = auth_settings;
      this.api_url = 'https://api.twitter.com/1.1/statuses/update_with_media.json';
    }

    twitter_update_with_media.prototype.post = function(status, file_path, callback) {
      var form, r;
      r = request.post(this.api_url, {
        oauth: this.auth_settings
      }, callback);
      form = r.form();
      form.append('status', status);
      return form.append('media[]', fs.createReadStream(path.normalize(file_path)));
    };

    return twitter_update_with_media;

  })();

  module.exports = twitter_update_with_media;

}).call(this);

usage.coffee

twitter_update_with_media = require 'twitter_update_with_media'

tuwm = new twitter_update_with_media({
	consumer_key: '...'
	consumer_secret: '...'
	token: '...'
	token_secret: '...'
})

tuwm.post('This is a test', '/path_to_image.png', (err, response) ->
	console.log(err) if err
	console.log(response)
)

usage.js

var twitter_update_with_media = require('twitter_update_with_media');

var tuwm = new twitter_update_with_media({
  consumer_key: '...',
  consumer_secret: '...',
  token: '...',
  token_secret: '...'
});

tuwm.post('This is a test', '/path_to_image.png', function(err, response) {
  if (err) {
    console.log(err);
  }
  console.log(response);
});