gistfile1.js

Backbone.ajax = function(params) {
      var request_type = params.type,
          url = params.url,
          deferred = $.Deferred();

      if (request_type === "GET") {
        appAPI.request.get({
          url: url,
          onSuccess:function(response, additional_info) {
            params.success(JSON.parse(response));
            deferred.resolveWith(this, [JSON.parse(response), additional_info]);
          },
          onFailure: function(httpCode) {
            params.error(httpCode);
            deferred.rejectWith(this, [httpCode]);
          }
        });
      } else if (request_type === "POST") {
        appAPI.request.post({
          url: url,
          postData: JSON.parse(params.data),
          onSuccess: function(response) {
            params.success(JSON.parse(response));
            deferred.resolveWith(this, [JSON.parse(response)]);
          },
          onFailure: function(httpCode) {
            params.error(httpCode);
            deferred.rejectWith(this, [httpCode]);
          }
        });
      }

      return deferred;
};