Laravel Custom Middleware Class

AdminMiddleware.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Symfony\Component\HttpFoundation\Response;

class AdminMiddleware
{
    /**
     * Handle an incoming request.
     *
     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
     */
    public function handle(Request $request, Closure $next): Response
    {
        // Check if the user is logged in
        if (Auth::check()) {
            // Check if the user's role is admin
            if (Auth::user()->role === 'admin') {
                // User is admin, allow access
                return $next($request);
            }
        }

        // If not admin, redirect or return error as needed
        return redirect()->route('login')->with('error', 'Unauthorized access');
    }
}

kernel.php

<?php

namespace App\Http;

use Illuminate\Foundation\Http\Kernel as HttpKernel;

class Kernel extends HttpKernel
{
    /**
     * The application's global HTTP middleware stack.
     *
     * These middleware are run during every request to your application.
     *
     * @var array<int, class-string|string>
     */
    protected $middleware = [
        // \App\Http\Middleware\TrustHosts::class,
        \App\Http\Middleware\TrustProxies::class,
        \Illuminate\Http\Middleware\HandleCors::class,
        \App\Http\Middleware\PreventRequestsDuringMaintenance::class,
        \Illuminate\Foundation\Http\Middleware\ValidatePostSize::class,
        \App\Http\Middleware\TrimStrings::class,
        \Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull::class,
    ];

    /**
     * The application's route middleware groups.
     *
     * @var array<string, array<int, class-string|string>>
     */
    protected $middlewareGroups = [
        'web' => [
            \App\Http\Middleware\EncryptCookies::class,
            \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
            \Illuminate\Session\Middleware\StartSession::class,
            \Illuminate\View\Middleware\ShareErrorsFromSession::class,
            \App\Http\Middleware\VerifyCsrfToken::class,
            \Illuminate\Routing\Middleware\SubstituteBindings::class,
            // 'admin' => \App\Http\Middleware\AdminMiddleware::class,
            // 'user' => \App\Http\Middleware\UserMiddleware::class,
        ],

        'api' => [
            // \Laravel\Sanctum\Http\Middleware\EnsureFrontendRequestsAreStateful::class,
            \Illuminate\Routing\Middleware\ThrottleRequests::class.':api',
            \Illuminate\Routing\Middleware\SubstituteBindings::class,
        ],
    ];

    /**
     * The application's middleware aliases.
     *
     * Aliases may be used to conveniently assign middleware to routes and groups.
     *
     * @var array<string, class-string|string>
     */
    protected $middlewareAliases = [
        'auth' => \App\Http\Middleware\Authenticate::class,
        'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
        'auth.session' => \Illuminate\Session\Middleware\AuthenticateSession::class,
        'cache.headers' => \Illuminate\Http\Middleware\SetCacheHeaders::class,
        'can' => \Illuminate\Auth\Middleware\Authorize::class,
        'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
        'password.confirm' => \Illuminate\Auth\Middleware\RequirePassword::class,
        'signed' => \App\Http\Middleware\ValidateSignature::class,
        'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,
        'verified' => \Illuminate\Auth\Middleware\EnsureEmailIsVerified::class,
         // Custom Middleware
        'admin' => \App\Http\Middleware\AdminMiddleware::class,
        'user' => \App\Http\Middleware\UserMiddleware::class,
    ];
}

UserMiddleware.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Symfony\Component\HttpFoundation\Response;

class UserMiddleware
{
    /**
     * Handle an incoming request.
     *
     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
     */
    public function handle(Request $request, Closure $next): Response
    {
        if (Auth::check()) {
            // Check if the user's role is user
            if (Auth::user()->role === 'user') {
                // User is user, allow access
                return $next($request);
            }
        }

        // If not user, redirect or return error as needed
        return redirect()->route('login')->with('error', 'Unauthorized access');
    }
}

web.php

<?php

use App\Http\Controllers\Admin\CategoryController;
use App\Http\Controllers\Admin\DashboardController;
use App\Http\Controllers\Admin\UserProfileController;
use App\Http\Controllers\admin\ProductController;
use App\Http\Controllers\LoginController;
use App\Http\Controllers\RegisterController;
use Illuminate\Support\Facades\Route;


Route::get('/', function () {
    return view('welcome');
});

// Applied Custom Middleware
Route::get('/admin-dashboard', [DashboardController::class, 'index'])->name('admin.dashboard')->middleware('admin');
Route::get('/user-profile', [UserProfileController::class, 'index'])->name('user.profile')->middleware('user');