The Angular Factory service is accurately retrieving data, but unfortunately, it is not being displayed on the user interface

Here is a link to the complete source code

angular
.module('app')
.factory('Friends', ['$http',function($http){
    return {
        get: function(){
            return $http.get('api/friends.json')
              .then(function(response){
                alert(JSON.stringify( response.data));
                return response.data;
              });
        }
    };
}])

Controller:

angular.module("app")
.controller('homeCtrl',['$scope','Friends',
    function($scope, Friends){
            $scope.title = "Welcome";
            $scope.items=["2016","2015", "2014"];
            $scope.friends = Friends.get();
            $scope.save = function(){
                $http.post('/api/friends', friends);
            }

          }])

$stateProvider
        .state('home',{
          url:'/',
          templateUrl:'templates/home.html',
          controller: 'homeCtrl',
          resolve : {
            friends:['Friends', function(Friends){
            return Friends.get();
          }]
          }
        })

When I try to alert the result:

https://i.stack.imgur.com/qarDV.jpg

The UI appears blank: https://i.stack.imgur.com/RfAhQ.jpg

*My navbar dropdown list is not functioning properly. Any tips on how to fix it?

https://i.stack.imgur.com/Ws2mH.jpg

Answer №1

When using Friends.get(), it will return a promise that requires the use of the then method :

Friends.get().then(function(data) { $scope.friends = data; }); //instead of  $scope.friends = Friends.get();

Answer №2

You might want to consider using $q for handling promises:

angular
.module('app')
.factory('Friends', ['$http', '$q' ,function($http, $q){
    var self = {};
    self.get = function() {

      var deferred = $q.defer();
      $http.get('api/friends.json')
      .success(deferred.resolve)
      .error(deferred.reject)

      return deferred.promise;
    }

   return self
}])

Using Resolve:

 resolve : {
   friends:['Friends', function(Friends){
     return Friends.get();
   }]
 }

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