[Solved] Slim 4 skeleton logging to app.log

try so

<?php declare(strict_types=1); 

use Psr\Http\Message\ResponseInterface as Response; 
use Psr\Http\Message\ServerRequestInterface as Request; 
use Slim\App; 

return function (App $app) { 
    $app->get('/', function (Request $request, Response $response) use ($app) {

        // Here I want to log something to app.log 
        $logger = $app->getContainer()->get('LoggerInterface::class');
        $logger->info('message');

        $response->getBody()->write('Hello world!'); 
        return $response; 
    });
};