Limit bundles in jsonapi

EventSubscriber.php

<?php

namespace Drupal\my_module\EventSubscriber;

use Drupal\jsonapi\ResourceType\ResourceTypeBuildEvents;
use Drupal\jsonapi\ResourceType\ResourceTypeBuildEvent;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

/**
 * Event subscriber to disable all resource types except what we need.
 */
class ResourceTypeBuildEventSubscriber implements EventSubscriberInterface {

  /**
   * The list of allowed resources.
   *
   * @var array
   */
  protected $allowedResources = [
    'node--basic_page',
    'node--article',
  ];

  /**
   * {@inheritdoc}
   */
  public static function getSubscribedEvents() {
    return [
      ResourceTypeBuildEvents::BUILD => [
        ['disableResourceType'],
      ],
    ];
  }

  /**
   * Disables any resource types that aren't explicitly allowed.
   *
   * @param \Drupal\jsonapi\ResourceType\ResourceTypeBuildEvent $event
   *   The build event.
   */
  public function disableResourceType(ResourceTypeBuildEvent $event) {
    if (!in_array($event->getResourceTypeName(), $this->allowedResources, TRUE)) {
      $event->disableResourceType();
    }
  }

}