How does Symfony inject a Request into a controller if it is given as a parameter?

Question

symfony

if you write like this

public function indexAction(<b>Request $request</b>)
{

}

the request will be available in the method
how to make if the
indexAction(Request $request, MyService $ms) method
so that my service instance is automatically fired and available inside the method?
and how good practice is it to inject into a method and not into a constructor?

Answer 1

Great practice. And automatic injection is done by autowire.