How to properly auto wire an Interface in Symfony 4.3.x when the method requires parameters?

You still want to create a closure to pass to $server->on. You can do as such with:

$onRequest = Closure::fromCallable([$this->callback, 'request']);

and then pass it:

$server->on('request', $onRequest);

php symfony symfony-4.3

You are invoking the function where you want to pass reference to the function instead. Try this:

$server->on('request', function ($request, $response) {$this->callback->request($request, $response);});

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