class SecurityController extends Controller {
/**
         * @Route("/login", name="login_form")
         */
        public function loginAction(Request $request) {
            $session = $request->getSession();
            // get the login error if there is one
            $error = $session->get(Security::AUTHENTICATION_ERROR);
            $session->remove(Security::AUTHENTICATION_ERROR);

            return new JsonResponse($session);
        }

var cardCollectionControllers = angular.module('cardCollectionControllers');cardCollectionControllers.controller('LoginCtrl', ['$scope', '$http',
function($scope, $http) {
    $scope.user = {};
    $scope.login = function() {
        $http({
            method  : 'POST',
            url     : 'http://localhost:8080/card_collection_backend/web/app_dev.php/login',
            data    : encodeURIComponent('username=' + $scope.username +'&password=' + $scope.password),
            headers : {'Content-Type': 'application/x-www-form-urlencoded'}
        })
            .success(function(data) {
                //what to do here?
            });
    };}]);