Symfony: Best place to catch exception (CQRS/DDD) - php

Question

I've a personal application. I use design pattern CQRS/DDD for a API.
Schema:
User --> Controller (dispatch command) --> Command handler --> some services...
In my Rest API controller
$this->dispatch($cmd);
If a throw a exception in services or specification classes for example, ok, I've a listener to catch exception and create JSON response error.
But if I want to develop an interface module with TWIG, I think I will not use my listener because I don't want a JSON response.
Should I used try/catch in my controller of my new interface module ?
SomeController extends AbstractController
{
public function getObject($id)
{
try {
$this->dispatch($cmd);
catch(SomeException $ex) {
$this->render(....)
}
}
}
Where is the best place to catch exception for TWIG ?
Thanks.
Edit:
#Cid
if (some conditions && $form->handleRequest($request)->isValid()) --> My handler don't return bool or values.
Imagine this code. Imagine I want share a service between an API and web view app.
class ApiController
{
public function register()
{
$this->dispatch($cmd);
}
}
class WebController
{
public function register()
{
$this->dispatch($cmd);
}
}
class SomeHandler implements CommandHandlerInterface
{
/** #required */
public RegisterService $service;
public function __invoke(SomeCommand $command)
{
$this->service->register($command->getEmail())
}
}
class RegisterService
{
public function register(string $email)
{
// Exception here
}
}

Answer 1

So, I think the best place to handle Exception is EventSubscriber, see here: https://symfony.com/doc/current/reference/events.html#kernel-exception
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Event\ExceptionEvent;
public function onKernelException(ExceptionEvent $event)
{
$exception = $event->getThrowable();
$response = new Response();
// setup the Response object based on the caught exception
$event->setResponse($response);
// you can alternatively set a new Exception
// $exception = new \Exception('Some special exception');
// $event->setThrowable($exception);
}