RESTful_API | 基于前后端分离使用框架 express 4.X 、数据库 Mysql 、 MVC模式 、 Swagger 、 | Runtime Evironment library

I am trying to call the http function of Factory in controller ,it does not work when I use the .then My code is as follows:

module :

var brandlistmodule = angular.module('newApp')

factory :

I am a rookie in the Restful,I want to send some variables to the viewset to response some filtering data by "GET"Now I have finished some parts ,I can get the all data,but I don't understand how to send variables to a specific function in the viewset to response some filtering data , for example I crate a new function called "get_ajax_variable() " ,How could I to send variables to the specific function ? appreciate in Advance!

This is my Serializer