Laravel 8: Route login not defined after redirection back from auth middleware

Question

I just added this route group to web.php :

Route::middleware('auth')->group(function() {
    Route::get('profile' , [ProfileController::class, 'index'])->name('profile');
});

As you can see I have used the middleware auth so if I'm not logged in, it should be showing me the login page.

And I had also defined authentication routes manually:

Route::prefix('auth')->namespace('Auth')->middleware('guest')->group(function() {
    Route::get('login' , [LoginController::class, 'showLogin'])->name('auth.login');
    Route::post('login' , [LoginController::class, 'login']);
    Route::get('register' , [RegisterController::class, 'showRegister'])->name('auth.register');
    Route::post('register' , [RegisterController::class, 'register']);
});

So the route name of the login page is auth.login and I just added it to Authenticate middleware which is set to auth at kernel.php :

'auth' => \App\Http\Middleware\Authenticate::class,

Authenticate.php :

protected function redirectTo($request)
    {
        if (! $request->expectsJson()) {
            return route('auth.login');
        }
    }

Now, the problem is whenever it should showing me the login page when not signed in, I get this error message:

Symfony\Component\Routing\Exception\RouteNotFoundException Route [login] not defined.

So what's going wrong here, how can I fix this error?

Answer 1

In app\Exceptions\Handler.php

use Illuminate\Auth\AuthenticationException;

protected function unauthenticated($request, AuthenticationException $exception)
{
    if ($request->expectsJson()) {
        return response()->json(['error' => 'Unauthenticated.'], 401);
    }

    return redirect()->guest(route('auth.login'));
}

Answer 2

Just change this

Route::get('login' , [LoginController::class, 'showLogin'])->name('auth.login');

to this

Route::get('login' , [LoginController::class, 'showLogin'])->name('login');

This sounds ridiculous but true. The reason is when you call login you call it with auth.login but Laravel knows only login . I had a similar issue and able to sort it by defining another route(GET).

Answer 3

Laravel uses login route somewhere for example in \app\Http\Handler.php therefore it's necessary to have login route. You can change your route name as Abdulla Nilam said before or If you don't want to change it, add this:

Route::get('/login/redirect', function () {
     return redirect(route('auth.login'));
})->name('login');

Answer 4

( Laravel 8 ) In App\Http\Middleware\Authenticate.php

    <?php

namespace App\Http\Middleware;

use Illuminate\Auth\Middleware\Authenticate as Middleware;

class Authenticate extends Middleware
{
    /**
     * Get the path the user should be redirected to when they are not authenticated.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return string|null
     */
    protected function redirectTo($request)
    {
        if (! $request->expectsJson()) {
            return route('auth.login');
        }
    }
}

you can easily change " login " to " auth.login " !