Drupal 8 - Module to redirect content type nodes to the homepage

redirect_nodes.info.yml

// redirect_nodes.info.yml
name: Redirect Nodes
type: module
description: Redirect nodes that shouldn't be accessed.
package: Custom
core: 8.x
configure: mytheme.checkForRedirection

redirect_nodes.services.yml

services:
  redirect_nodes.redirectMyContentType:
    class: Drupal\redirect_nodes\EventSubscriber\RedirectNodesSubscriber
    tags:
      - { name: event_subscriber }

RedirectNodesSubscriber.php

// file at src/EventSubscriber/RedirectNodesSubscriber.php
<?php
/**
 * @file
 * Contains \Drupal\redirect_nodes\EventSubscriber\RedirectNodesSubscriber
 */

namespace Drupal\redirect_nodes\EventSubscriber;

use Drupal\Core\Url;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\HttpKernel\KernelEvents;

class RedirectNodesSubscriber implements EventSubscriberInterface {

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

  /**
   * Redirect requests for nodes to <front>.
   *
   * @param GetResponseEvent $event
   * @return void
   */
  public function redirectMyContentTypeNode(GetResponseEvent $event) {
    $request = $event->getRequest();

    // Prevent redirecting on node's "edit", "revisions", etc. pages.
    if ($request->attributes->get('_route') !== 'entity.node.canonical') {
      return;
    }

    // Prevent redirect on all content types other than specified here.
    if ($request->attributes->get('node')->getType() !== 'content_type_1' &&
        $request->attributes->get('node')->getType() !== 'content_type_2'
    ) {
      return;
    }

    // This is where you set the destination.
    $redirect_url = Url::fromUri('internal:/');
    $response = new RedirectResponse($redirect_url->toString(), 301);
    $event->setResponse($response);
  }
}