[Solved] Slim 4 skeleton logging to app.log

1

I am sorry, but I am a newbie to Slim 4 and I have a simple question to logging something to the default logfile app.log. I created a new sample project with composer and got the following app in routes.php which is running fine:

<?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) { // Here I want to log something to app.log $response->getBody()->write('Hello world!'); return $response; }); }; As I saw there is a logging ContainerBuilder function prepared for this in dependencies.php but I dont know how to use that in my apps route functions. I want to log a string into app.log at the point marked with a comment in the app above. Can anyone point me to the solution for this please? Regards, Tom
2

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; 
    });
};
3

Thx for you fast reponse Mikalay. When I add the 2 lines to my app, I get a server error 500 with the message “Call to a member function getContainer() on null”.

4

in route.php

<?php
declare(strict_types=1);

use App\Application\Actions\User\ListUsersAction;
use App\Application\Actions\User\ViewUserAction;
use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Psr\Log\LoggerInterface;
use Slim\App;
use Slim\Interfaces\RouteCollectorProxyInterface as Group;

return function (App $app) {
    $container = $app->getContainer();

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

    	// Here I want to log something to app.log 
    	$logger = $container->get(LoggerInterface::class);
    	$logger->info('message123');
    	
        $response->getBody()->write('Hello world!');
        return $response;
    });

    $app->group('/users', function (Group $group) use ($container) {
        $group->get('', ListUsersAction::class);
        $group->get('/{id}', ViewUserAction::class);
    });
};
5

Cool - thats exactly what I needed!

Thanky you very much Mikalay!