Laravel - Trying to get property 'token' of non-object", exception: "ErrorException" - php

Question

I am using Angular-7 as frontend and Laravel-5.8 as backend for a web application.
ApiController.php
public function login(Request $request)
{
$request->validate([
'email' => 'required|string|email',
'password' => 'required|string',
'remember_me' => 'boolean'
]);
$credentials = request(['email', 'password']);
$credentials['active'] = 1;
$credentials['deleted_at'] = null;
if(!Auth::attempt($credentials))
return response()->json([
'message' => 'Unauthorized'
], 401);
$user = $request->user();
$res = User::with('roles')->find($user->id);
$tokenResult = $user->createToken('MyApp')->accessToken;
$token = $tokenResult->token;
if ($request->remember_me)
$token->expires_at = Carbon::now()->addWeeks(13);
$token->save();
return response()->json([
'access_token' => $tokenResult->accessToken,
'token_type' => 'Bearer',
'expires_at' => Carbon::parse($tokenResult->token->expires_at)->toDateTimeString(),
'user' => response()->json($res)->original
]);
}
From the Angular frontend, when I click on submit on the Login Page, it suppose to redirect to home page. But I got this error:
{message: "Trying to get property 'token' of non-object", exception: "ErrorException", file: "C:\xampp\htdocs\clientportal-app\backend\app\Http\Controllers\ApiController.php", line: 212, trace: Array(35)}
When I checked line 212 from Laravel ApiController from the code above, this is what I have:
$token = $tokenResult->token;
How do I resolve it?

Answer 1

Laravel Passport requires following configuration.
User model needs to use the HasApiTokens trait.
class User extends Authenticatable
{
use Notifiable, HasApiTokens;
}
Passport routes need to added to the boot() method of AuthServiceProvider
public function boot()
{
$this->registerPolicies();
Passport::routes();
}
And finally change the api driver to passport in auth config file.
'api' => [
'driver' => 'passport',
'provider' => 'users',
]
You need to migrate Passport tables
php artisan migrate
and generate encryption keys
php artisan passport:install
Clear cache with
php artisan config:cache
and serve your app
php artisan serve