Implement a caching mechanism

src/Controller/NewController.php

@@ -14,11 +14,15 @@ final class NewController extends BaseController
     #[Route('/new', name: 'app_new')]
     public function __invoke(): Response
     {
+        if($this->cache->getItem('list_new')->isHit()) {
+            return $this->render('productList.html.twig', ['listType' => 'new']);
+        }
+
         $products = Product::where('created_at', '>', now()->modify('-30 days')->format('Y-m-d'))
             ->orderByDesc('starred')
             ->orderByDesc('created_by')
             ->with(['currentPrice'])
             ->get();
-        return $this->render('productList.html.twig', ['products' => $products]);
+        return $this->render('productList.html.twig', ['products' => $products, 'listType' => 'new']);
     }
 }