post to tumblr every time a twitter user favorites a post

twitterToTumblr.js

// -------------- SERVER.JS file ------------------

var Twit = require('twit'),
    tumblr = require('tumblr.js');

var twitterAuth = new Twit({
  consumer_key: 'your twitter key',
  consumer_secret: 'your twitter secret',
  access_token: 'your twitter token',
  access_token_secret: 'your twitter token secret'
});

var tumblrClient = new tumblr.createClient ({
    consumer_key: 'your tumblr key',
    consumer_secret: 'your tumblr secret',
    token: 'your tumblr token',
    token_secret: 'your tumblr token secret'
});

// create a twitter stream for the user whos activity you want to track
var stream = twitterAuth.stream('user', {track: 'twitter username to track'});

// when the twitter user favorites a post this is called 
stream.on('favorite', function (event) {
  
  // if the post contains an image, post it and other tweet info to tumblr
  if (event.target_object.entities.media != undefined) {
  
    tumblrClient.photo("your tumblr blog url", {
      source: event.target_object.entities.media[0].media_url, 
      caption: '<a href="http://www.twitter.com/' + event.target_object.user.screen_name
                + '">' + '@' +  event.target_object.user.screen_name + '</a>: '
                + event.target_object.text,
      }, 
      function (response){
          console.log(response);
          console.log(event);
      }
    );
  }
});

// -----------  PACKAGE.JSON file ------------------
{
  "name": "twitterToTumblr",
  "version": "1.0.0",
  "description": "post twitter favs or retweets to tumblr blog",
  "main": "server.js",

  "scripts": {
    "start": "node server.js",
    "predeploy": "npm install",
    "test": "echo \"Error: no test specified\" && exit 1"
  },

  "author": "travis irby",
  "license": "MIT",

  "dependencies": {
    "tumblr.js": "0.0.4",
    "twit": "^1.1.19",
  },

  "engines": {
  "node": "0.10.x",
  "npm": ">=1.3"
  }
}