Create event to modify response

@dgaspara @nsalves, any hope that we can see this (or something similar) in the Webform REST module in the near future? It will make an excellent module even better.

Hey everyone,
Had to do a couple of changes to make the patch work, some new responses were sent and there was need to change the order of the arguments in the dispatch method to support newer versions of Symfony. Nevertheless looks good and committed to the dev branch. A new release will be issue soon

Automatically closed - issue fixed for 2 weeks with no activity.

By using "Drupal\Component\EventDispatcher\Event" minimum version requirement should not be "^8.7.7 || ^9 || ^10" but "^9.1 || ^10".

Or we can introduce similar apporach as web/modules/contrib/commerce/src/EventBase.php commerce module took:

<?php

namespace Drupal\commerce;

// Drupal\Component\EventDispatcher\Event was introduced in Drupal core 9.1 to
// assist with deprecations and the transition to Symfony 5.
// @todo Remove this when core 9.1 is the lowest supported version.
// @see https://www.drupal.org/project/commerce/issues/3192056
if (!class_exists('Drupal\Component\EventDispatcher\Event')) {
  class_alias('Symfony\Component\EventDispatcher\Event', 'Drupal\Component\EventDispatcher\Event');
}

use Drupal\Component\EventDispatcher\Event;

/**
 * Provides a base event class for Commerce events.
 */
class EventBase extends Event {}