AngularJS : factory $http service

Question

I am trying to understand the concept of factory and service in Angular. I have the following code under the controller

init();

    function init(){
                


        

Answer 1

The first answer is great but maybe you can understand this:

studentApp.factory('studentSessionFactory', function($http){
    var factory = {};

    factory.getSessions = function(){
        return $http.post('/services', {type :'getSource',ID :'TP001'});
    };

    return factory;
});

Then:

studentApp.controller('studentMenu',function($scope, studentSessionFactory){
      $scope.variableName = [];

      init();

      function init(){
          studentSessionFactory.getSessions().success(function(data, status){
              $scope.variableName = data;
          });
          console.log($scope.variableName);
     };
 });