HttpClientManagerExampleSubscriber.php in HTTP Client Manager 8.2

Namespace

Drupal\http_client_manager_example\EventSubscriber

File

modules/http_client_manager_example/src/EventSubscriber/HttpClientManagerExampleSubscriber.php

<?php

namespace Drupal\http_client_manager_example\EventSubscriber;

use Drupal\http_client_manager\Event\HttpClientEvents;
use Drupal\http_client_manager\Event\HttpClientHandlerStackEvent;
use GuzzleHttp\Middleware;
use Psr\Http\Message\RequestInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

/**
 * Class HttpClientManagerExampleSubscriber.
 */
class HttpClientManagerExampleSubscriber implements EventSubscriberInterface {

  /**
   * {@inheritdoc}
   */
  public static function getSubscribedEvents() {
    return [
      HttpClientEvents::HANDLER_STACK => [
        'onHandlerStack',
      ],
    ];
  }

  /**
   * This method is called whenever the http_client.handler_stack event is
   * dispatched.
   *
   * @param \Drupal\http_client_manager\Event\HttpClientHandlerStackEvent $event
   *   The HTTP Client Handler stack event.
   */
  public function onHandlerStack(HttpClientHandlerStackEvent $event) {
    if ($event
      ->getHttpServiceApi() != 'example_services') {
      return;
    }
    $handler = $event
      ->getHandlerStack();
    $middleware = Middleware::mapRequest([
      $this,
      'addExampleServiceHttpHeader',
    ]);
    $handler
      ->push($middleware, 'example_services');
  }

  /**
   * Add example service HTTP Header.
   *
   * @param \Psr\Http\Message\RequestInterface $request
   *   The current Request object.
   *
   * @return \Psr\Http\Message\MessageInterface
   *   Return an instance with the provided value for the specified header.
   */
  public function addExampleServiceHttpHeader(RequestInterface $request) {
    return $request
      ->withHeader('X-EXAMPLE-HTTP-HEADER', 'example_services');
  }

}

Classes

Name	Description
HttpClientManagerExampleSubscriber	Class HttpClientManagerExampleSubscriber.