* refactored with entity service, so the code can be tested

src/App/Action/HomePageAction.php

@@ -2,9 +2,6 @@
 
 namespace App\Action;
 
-use App\Entity\User;
-use Doctrine\ORM\EntityManager;
-use Doctrine\ORM\Query;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
 use Zend\Diactoros\Response\JsonResponse;
@@ -12,32 +9,10 @@ use Zend\Diactoros\Response\JsonResponse;
 class HomePageAction
 {
 
-    /**
-     * @var EntityManager 
-     */
-    private $em;
-
-    public function __construct(EntityManager $em)
-    {
-        $this->em = $em;
-    }
-
     public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next = null)
     {
-        $qb   = $this->em->createQueryBuilder();
-        $user = $qb->select('u, a, ac, uc')
-            ->from(User::class, 'u')
-            ->leftJoin('u.comments', 'uc')
-            ->leftJoin('u.articles', 'a')
-            ->leftJoin('a.comments', 'ac')
-            ->where('u.id = :uid')
-            ->setParameter('uid', 1)
-            ->getQuery()
-            ->getSingleResult(Query::HYDRATE_ARRAY);
-
         return new JsonResponse([
             'welcome' => 'Congratulations! You have reached our API endpoint.',
-            'user'    => $user,
         ]);
     }
-}
+}