Middleware

Middleware

php artisan make:middleware CheckAge

namespace AppHttpMiddleware;
use Closure;
use IlluminateHttpRequest;

class CheckAge {
    public function handle(Request $request, Closure $next, int $minAge = 18) {
        if (auth()->user()->age < $minAge) {
            abort(403, "Too young");
        }
        return $next($request); // pass to next middleware
    }
}

// Register in bootstrap/app.php (Laravel 11)
->withMiddleware(function ($m) {
    $m->alias(["check.age" => CheckAge::class]);
})

// Apply to routes
Route::get("/adult", fn() => "OK")->middleware("check.age:18");