Javascript module for shortening URLs using Bitly

pdogs-urlshortener-bitly.js

(function($,window) {
"use strict";

window.pdogs = window.pdogs || {};
pdogs.urlshortener = function() {
   var
      _bitlyAccessToken = '<YOUR BITLY ACCESS_TOKEN HERE>',
      _bitlyShortDomain = 'j.mp',
      _module = { shorten: shorten };
   return _module;

   function shorten(longUrl, sync) {
      var p = $.Deferred();
      if (typeof longUrl === 'undefined' || !longUrl || !longUrl.length) { 
         p.reject({ error: 'Invalid/Empty URI' }); 
         return p.promise();
      }

      var
         encodedLongUrl = encodeURIComponent(decodeURIComponent(longUrl)),
         params = 'access_token=' + _bitlyAccessToken 
                  + '&longUrl=' + encodedLongUrl 
                  + '&domain=' + _bitlyShortDomain 
                  + '&format=json',
         r = {
            type: 'GET',
            url: 'https://api-ssl.bitly.com/v3/shorten?' + params,
            headers: { 
               'Accept': 'application/json' 
            },
            async: !sync
         };
      jQuery.support.cors = true;
      $.ajax(r)
         .done(function(response) { 
            if (response.status_code != 200) p.reject({ error: response.status_txt }); 
            else p.resolve({ shortUrl: response.data.url, shortUrlImg: response.data.url + '.qrcode' }); 
         })
         .fail(function(xhr,textStatus, error) { 
            var m = error.message ? error.message : error;
            p.reject({ error: 'bitly] ' + textStatus + ': ' + m }); 
         });
      return p.promise();
   }
}();

})(jQuery,window);