Auth::user() returns null - php

Question

I use Laravel 5.2 and have a problem with middleware.
There is the code in the routes.php
use Illuminate\Contracts\Auth\Access\Gate;
Route::group(['middleware' => 'web'], function () {
Route::auth();
Route::get('/', 'HomeController#index');
});
Route::group(['prefix'=>'admin', 'middleware' => 'admin'], function(){
Route::get('/', function(){
return view('admin.index');
});
Route::get('/user', function(){
return view('admin.user');
});
});
Kernel.php:
protected $routeMiddleware = [
...
'admin' => \App\Http\Middleware\AdminPanel::class,
];
AdminPanel.php
namespace App\Http\Middleware;
use Closure;
use Illuminate\Support\Facades\Auth;
use App\Role;
class AdminPanel
{
public function handle($request, Closure $next)
{
$user = Auth::user();
dd($user);
if($user){
$role = Role::whereName('admin')->first();
if($user->hasRole($role)){
return $next($request);
}
}
return redirect('/');
}
So, $user = Auth::user() always return null.
Thanks for suggestions!

Answer 1

I faced a situation where Auth::user() always returns null, it was because I was trying to get the User in a controller's constructor.
I realized that you can't access the authenticated user in your controller's constructor because the middleware has not run yet.
As an alternative, you can define a Closure based middleware directly in your controller's constructor.
namespace App\Http\Controllers;
use App\User;
use Illuminate\Support\Facades\Auth;
use App\Http\Controllers\Controller;
class ProjectController extends Controller
{
protected $user;
/**
* Create a new controller instance.
*
* #return void
*/
public function __construct()
{
$this->middleware(function ($request, $next) {
$this->user = Auth::user();
return $next($request);
});
}
}

Answer 2

Any route that uses Auth() must be encapsulated in the web middleware. You're close, just move your Route::group(['prefix' => 'admin'], ...) into the group above.
Route::group(['middleware' => 'web'], function () {
Route::auth();
Route::get('/', 'HomeController#index');
// Moving here will ensure that sessions, csrf, etc. is included in all these routes
Route::group(['prefix'=>'admin', 'middleware' => 'admin'], function(){
Route::get('/', function(){
return view('admin.index');
});
Route::get('/user', function(){
return view('admin.user');
});
});
});

Answer 3

Define middleware in the constructer of your controller and it will do the trick here
public function __construct()
{
$this->middleware('auth:api');
}

Answer 4

I had the same problem because i did not set the table name.
/**
* The table associated with the model.
*
* #var string
*/
protected $table = 'users';

Answer 5

I found a solution in an old code
function getAuth($guard, $get)
{
return auth($guard)->user()->$get;
}
add this ^ as a helper function and use it wherever you want
ex:
getAuth('user', 'id');

Answer 6

just include your authentication middleware in call
$user = auth('middleware')->user()

Answer 7

Route::middleware('auth:api')->group(function () {
Route::get('/details', 'UserController#details');
});

Answer 8

My Auth::user() return null in view when
I don't have users table in database
I don't have id field as primary key of table users