Bangular socket usage example

home.controller.js

angular.module('test')
  .controller('HomeCtrl', function ($scope, $http, Socket) {

    var vm = this;

    vm.items = [];
    vm.lastMsg = '';

    $http.get('/api/items').success(function (res) {
      vm.items = res;
      Socket.syncModel('Item', vm.items);
    });

    vm.add = function () {
      $http.post('/api/items', { name: 'Some random name' });
    };

    vm.delete = function (id) {
      $http.delete('/api/items/' + id);
    };
    
    Socket.on('msg', function (msg) {
      vm.lastMsg = msg;
    });

    $scope.$on('$destroy', function () {
      Socket.unsyncModel('Item');
      Socket.clean();
    });

  });

Line 22 ?
Socket.unsyncModel('Item');

Thank you 😄