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This is a simple example of Authentication and/or Authorization using html5's sessionStorage with AngularJS.
// Main module declaration
var myapp = angular.module('myapp', []);
// Set some actions to be performed when running the app['$location', '$rootScope', function($location, $rootScope) {
// Register listener to watch route changes.
// We use this to make sure a user is logged in when they try to retrieve data
$rootScope.$on( "$routeChangeStart", function(event, next, current) {
// If there is no token, that means the user is not logged in.
if(sessionStorage.getItem("token") == null) {
// Redirect to login page
window.location.href = "login.html";
// A controller for the login page
myapp.controller('LoginController', ['$scope', '$http', function($scope, $http) {
// If a user has check the "remember me" box previously and the email/password is in localStorage, set the email/password
if(localStorage.getItem("email") != null && localStorage.getItem("password") != null) {
$scope.user = {
email: localStorage.getItem("email"),
password: localStorage.getItem("password"),
remember: localStorage.getItem("remember")
// Login method when the form is submitted
$scope.login = function() {
// Authenticate the user - send a restful post request to the server and if the user is authenticated successfully, a token is returned
$'', $scope.user)
.success(function(response) {
// Set a sessionStorage item we're calling "token"
sessionStorage.setItem("token", response.token);
// Redirect to wherever you want to
window.location = 'index.html';
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EhteshamMehmood commented Feb 15, 2018

You can check angular 4 login example learn angularjs 4 tutorials.

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