Login & Registration Module with Laravel 5.4, AngularJS 1.5.11, JWT authentication 1.0.0-beta.3v and Satellizer 0.15.5

This example is totaly responsive and can be tested on phones, tablets and desktops.

Note: when downloding this example you need to execute this command line from the project folder:

      $ composer update --no-scripts

-> In order to create the autoload files.

The implemented functions in this example:

1- Login.

2- Registration.

3- Listing users who have already signed up.

Steps

1- Install local development environment:

Install a local server:

    -WAMP: Windows,
    -LAMP: Linux,
    -MAMP: MAC,
    -XAMPP: Windows, Linux, OSx

Server requirements to start a Laravel 5.4 project:

    -php>= 5.6.4
    -OpenSSL PHP extension
    -PDO PHP extension
    -Mbstring PHP extension
    -Tokenizer PHP extension
    -XML PHP extension
    -Enable mcrypt extension

Server requirements from the Official documentation of Laravel 5.4

2- Install Composer

$ sudo apt-get update
$ curl -sS https://getcomposer.org/installer | php
$ sudo mv composer.phar /usr/local/bin/composer
$ sudo chmod +X /usr/local/bin/composer

3- Install Laravel 5.4 with Composer

$ cd /var/www/html
$ composer create-project laravel/laravel --prefer-dist authApp 5.4
$ cd authApp
$ php artisan serve

Now the laravel project is ready on http://localhost:8000

In case an Error 500 occur, then there are some permissions that need to be added:

$ sudo chmod -R 755 /var/www/html/authApp
$ sudo chmod -R 777 /var/www/html/authApp/storage
$ sudo chmod -R 777 /var/www/html/authApp/bootstrap/cache

3- Setting up the backend authentication tool: JWT

a- edit composer.json file:

          "requirement": {
              "tymon/jwt-auth": "1.0.0-beta.3",
              "nesbot/Carbon": "^1.0",
              ...
           };

b- from CLI:

          $ composer update

c- edit config/app.php:

          'providers' => [
              ...
              Tymon\JWTAuth\Providers\LaravelServiceProvider::class,
              ...
           ],
           'aliases' => [
              ...
              'JWTAuth'   => Tymon\JWTAuth\Facades\JWTAuth::class,
              'JWTFactory' => Tymon\JWTAuth\Facades\JWTFactory::class
           ]

d- from CLI:

        $ php artisan vendor:publish
        $ php arisan vendor:publish --provider="Tymon\JWTAuthProviders\LaravelServiceProvider"

e- generate a secret key:

        $ php artisan jwt:secret

-> the secret key will be automatically configured in the .env file

f- edit kernel.php file:

1- we need to remove the VerifyCsrfToken class from $middlewareGroups since JWT already do that, so we just need to comment this line:

    \App\Http\Middleware\VerifyCsrfToken::class,

2- add 'jwt.auth' and 'jwt.refresh' classes to $routeMiddleware:

    'jwt.auth' => Tymon\JWTAuth\Middleware\GetUserFromToken::class,
    'jwt.refresh' => TymonJWTAuth\Middleware\RefreshToken::class,

g- edit config/auth.php file:

since laravel will be used to develop an API and not a web app, we need to change the 'guard' value from 'web' to 'api':

          'default' => [
               'guard' => 'api',
               'passwords' => 'users',
          ];

and since we will use JWT for authentication and not token, we need to change the 'driver' value from 'token' to 'jwt':

          'guards' => [
              ...
              'api' => [
                  'driver' => 'jwt',
                  'provider' => 'users'
              ]
          ]

4- Configure the user migration table & model

a- the migration table:

just inside the up() function we add the necessary elements:

    Schema::create('users', function (Blueprint $table) {
        $table->increments('id');
        $table->string('firstName');
        $table->string('lastName');
        $table->string('Age');
        $table->string('email')->unique();
        $table->string('password');
        $table->timestamps();
    });

b- the user model:

we need to fill the fillable array:

            protected $fillable = [
              'firstName', 'lastName', 'Age', 'email', 'password'
            ];

and implement the JWT classe:

        ...
        use Tymon\JWTAuth\Contracts\JWTSubject as AuthenticatableUserContract;

        class User extends Authenticatable implements AuthenticatableUserContract {
           ...
      
           /**
           * Get the identifier that will be stored in the subject claim of the JWT
           *
           * @return mixed
           */

          public function getJWTIdentifier()
          {
              return $this->getKey();  // Eloquent model method
          }

          /**
           * Return a key value array, containing any custom claims to be added to the JWT
           *
           * @return array
           */
          public function getJWTCustomClaims()
          {
              return [];
          }
        }

5- Setting up the Front-end: AngularJS & Satellizer

a- create an Angular project:

Inside the public folder create the angular project folder:

      $ cd public
      $ mkdir FrontEndAngular

b- Install Angular 1.5.11 and the necessary dependencies:

      $ cd FrontEndAngular
      $ npm install angular@1.5.11 satellizer angular-ui-router bootstrap@3

c- create the master.php file:

This file should be placed in resources/views and it will be the base file of our template. It should contain all CSS and JS files and essentially it hosts the ui-view tag.

   <div class="container">
     <div class="row">
      <div class="col-xs-10 col-sm-8 col-md-8 col-lg-6 col-xs-offset-1 col-sm-offset-2 col-md-offset-2 col-lg-offset-3">
 	<div class="panel panel-logreg">
    		<ui-view></ui-view>
 	</div>			
      </div>
     </div>
   </div>

d- create the js/app.js, templates/login.html, templates/registration.html, templates/home.html, js/LoginController.js, js/RegistrationController.js, js/HomeController.js

• app.js: this main js file will handle routing in the front-end side using ui.router ($stateProvider):

       	$stateProvider
                .state('login', {
                    url: '/login',
                    templateUrl: '/FrontEndAngular/template/login.html',
                    controller: 'LoginController',
                    controllerAs:'lg',
                })
                .state('registration', {
                    url: '/registration',
                    templateUrl: '/FrontEndAngular/template/registration.html',
                    controller: 'RegistrationController',
                    controllerAs:'rg',
                })
                .state('home', {
                    url: '/home',
                    templateUrl: '/FrontEndAngular/template/home.html',
                    controller: 'HomeController',
                    controllerAs:'hm',
                })
  

• LoginController.js: in this file we handle the login scenario

        vm.login = function() {
  
    		var credentials = {
    			email: vm.email,
    			password: vm.password
    		} 
  
    		$auth.login(credentials).then(function() {
    		  return $http.get('api/authentUser');
    		}, function(error) {
    		  vm.loginError = true;
    		  vm.loginErrorText = error.data.error;
    		}).then(function(response) {
    		  var user = JSON.stringify(response.data.user);
    		  localStorage.setItem('user', user);
    		  $rootScope.authenticated = true;
    		  $rootScope.currentUser = response.data.user;
    		  $state.go('home');
    		}).catch(function (response) {			      
    		   console.log('Error: Login failed');
    		});
        }
  

• RegistrationController.js: in this file we handle the registration scenario

    		  vm.register = function __register() {
    		    $auth.signup({
    		      firstName: vm.user.firstname,
    		      lastName: vm.user.lastname,
    		      age: vm.user.age,
    		      email: vm.user.email,
    		      password: vm.user.password
    		    }).then(function (response) {
    		      console.log(response);
    		      $state.go('login');
    		    }).catch(function (response) {
    		      vm.regError = true;
    		      if (response.data.email) {
    		      	vm.errorText = response.data.email;
    		      } else if (response.data.password) {
    		      	vm.errorText = response.data.password;
    		      } else if (response.data.firstName) {
    		      	vm.errorText = response.data.firstName;
    		      } else if (response.data.lastName) {
    		      	vm.errorText = response.data.lastName;
    		      } else if (response.data.age) {
    		      	vm.errorText = response.data.age;
    		      }				      
    		      console.log(response);
    		    });
    		  };
  

• HomeController.js: in this file we handle the listing of already registered users and the logout scenarios

        vm.getAllUsers = function() {
    	  $http({
            method: 'POST',
            url: '/api/getUsers',
            data: 'currentUserEmail='+$rootScope.connectedUser.email,
            headers: {'Content-Type': 'application/x-www-form-urlencoded'}
          }).success(function(response){
            vm.users = response;
          }).error(function(error){
          	vm.error = error;
          });
        }
         vm.logout = function() {
  
              $auth.logout().then(function() {
                
                    // Remove the authenticated user from local storage
                    localStorage.removeItem('user');
  
                    // Flip authenticated to false so that we no longer
                    // show UI elements dependant on the user being logged in
                    $rootScope.authenticated = false;
  
                    // Remove the current user info from rootscope
                    $rootScope.currentUser = null;
                    $state.go('login');
              });
         }
  

6- Create the AuthenticationController.php for the server side development which contain the Login, Registration and extracting users data functions

public function register(RegistrationRequest $request) {
	$password = $request->get('password');
	$newUser = $this->user->create([
					'firstName' => $request->get('firstName'),
					'lastName' => $request->get('lastName'),
					'Age' => $request->get('age'),
					'email' => $request->get('email'),
					'password' => bcrypt($password)
				]);
	if (!$newUser) {
      return response()->json(['failed_to_create_new_user'], 500);
    }
    return response()->json([
        'token' => JWTAuth::fromUser($newUser)
    ]);

}
public function login(LoginRequest $request) {
    $credentials = $request->only('email', 'password');
    try {
        // verify the credentials and create a token for the user
        if (! $token = JWTAuth::attempt($credentials)) {
            return response()->json(['error' => 'invalid credentials'], 401);
        }
    } catch (JWTException $e) {
        // something went wrong
        return response()->json(['error' => 'could_not_create_token'], 500);
    }

    // if no errors are encountered we can return a JWT
    return response()->json(compact('token'));
}
public function getAuthenticatedUser() {
      try {

        if (! $user = JWTAuth::parseToken()->authenticate()) {
            return response()->json(['user_not_found'], 404);
        }

      } catch (Tymon\JWTAuth\Exceptions\TokenExpiredException $e) {

        return response()->json(['token_expired'], $e->getStatusCode());

      } catch (Tymon\JWTAuth\Exceptions\TokenInvalidException $e) {

        return response()->json(['token_invalid'], $e->getStatusCode());

      } catch (Tymon\JWTAuth\Exceptions\JWTException $e) {

        return response()->json(['token_absent'], $e->getStatusCode());

      }

      // the token is valid and we have found the user via the sub claim
      return response()->json(compact('user'));
}
public function getAllUsers(Request $request) {
    $currentUser = $request->get('currentUserEmail');
    $otherUsers = User::where('email', '<>', $currentUser)
    					->orderBy('firstName')
    					->get();
    return $otherUsers;
}

7- configure routes in routes/api.php

Route::post('/getUsers', 'AuthenticateController@getAllUsers');
Route::post('/register', 'AuthenticateController@register');
Route::post('/login', 'AuthenticateController@login');
Route::get('/authentUser', 'AuthenticateController@getAuthenticatedUser');

Testing

1- Login, Registration and Listing data from server

2- Error handling