drupal-graphql / graphql

src/EventSubscriber/SubrequestSubscriber.php

<?php

namespace Drupal\graphql\EventSubscriber;

use Symfony\Component\EventDispatcher\EventSubscriberInterface;

The type Symfony\Component\EventDispatcher\EventSubscriberInterface was not found. Maybe you did not declare it correctly or list all dependencies?

use Symfony\Component\HttpKernel\Event\RequestEvent;

The type Symfony\Component\HttpKernel\Event\RequestEvent was not found. Maybe you did not declare it correctly or list all dependencies?

use Symfony\Component\HttpKernel\KernelEvents;

The type Symfony\Component\HttpKernel\KernelEvents was not found. Maybe you did not declare it correctly or list all dependencies?

/**
 * Remap artificial requests to subrequest extraction controller.
 */
class SubrequestSubscriber implements EventSubscriberInterface {

  /**
   * Handle kernel request events.
   *
   * @param \Symfony\Component\HttpKernel\Event\RequestEvent $event
   *   The kernel event object.
   */
  public function onKernelRequest(RequestEvent $event) {
    $request = $event->getRequest();
    if ($request->attributes->has('_graphql_subrequest')) {
      $request->attributes->set('_graphql_controller', $request->attributes->get('_controller'));
      $request->attributes->set('_controller', '\Drupal\graphql\Controller\SubrequestExtractionController:extract');
    }
  }

  /**
   * {@inheritdoc}
   */
  public static function getSubscribedEvents() {
    return [KernelEvents::REQUEST => 'onKernelRequest'];
  }

}