AngularJS $interceptor example

angularjs-interceptor-example.js

// app.js
// http://djds4rce.wordpress.com/2013/08/13/understanding-angular-http-interceptors/
// http://blog.brunoscopelliti.com/http-response-interceptors


//any 404 error clean cookies and sends the user to login

var interceptor = ['$rootScope', '$q', '$location', '$cookieStore', function ($rootScope, $q, $location, $cookieStore) {

            function success(response) {
                return response;
            }

            function error(response) {
                var status = response.status;

                if (status == 401) {
                    $cookieStore.remove('user');
                    $rootScope.user = null;
                    return $location.path('/login');
                }
                // otherwise
                return $q.reject(response);

            }

            return function (promise) {
                return promise.then(success, error);
            }

        }];
        $httpProvider.responseInterceptors.push(interceptor);


	}])