FYI lumen does not restrict/register routes by domain - solution

[macropay-solutions]

This will work on any domain pointing to the app not just on APP_URL. It is just FYI, not a bug.

$router->group(
    [
        'domain' => (string)\env('APP_URL'),
    ],
    function (Router $router): void {
        $router->post('/login', 'Auth\AuthController@login');
    }
);

To test it you can put:

$router->group(
    [
        'domain' => 'https://example.com', // call it on https://yourwebsite.com/login and it will work (in laravel it will not).
    ],
    function (Router $router): void {
        $router->post('/login', 'Auth\AuthController@login');
    }
);

and it will work.

laravel/lumen-framework#99

[macropay-solutions]

Solution for domains to work

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;

class DomainMiddleware
{
    public function handle(Request $request, Closure $next, string $url): mixed
    {
        if ((\parse_url($url)['host'] ?? '*') === \strtok($_SERVER['HTTP_HOST'] ?? '*', ':')) {
            return $next($request);
        }

        return \response(status: 404);
    }
}


// bootstrap/app.php

$app->routeMiddleware([
    'domain' => \App\Http\Middleware\DomainMiddleware::class,
]);

// routes/web.php

$router->group(
    [
        'middleware' => ['domain:' . \env('APP_URL')],
    ],
    function (Router $router): void {
        $router->post('/login', 'Auth\AuthController@login');
    }
);

Avoid declaring same URI on multiple domains!

[macropay-solutions]

For multiple domains with same URI see macropay-solutions/laravel-crud-wizard-free#15 (comment)