Converted middlewares definition array to a Collection

app/config/container.php

@@ -4,6 +4,8 @@ use App\Factories;
 use App\Middlewares;
 use App\SortMethods;
 use App\ViewFunctions;
+use Middlewares as HttpMiddlewares;
+use Psr\Container\ContainerInterface;
 use Tightenco\Collect\Support\Collection;
 
 return [
@@ -20,10 +22,13 @@ return [
     /** Array of application files (to be hidden) */
     'app_files' => ['app', 'index.php', '.hidden'],
 
-    /** Array of application middlewares */
-    'middlewares' => [
-        Middlewares\WhoopsMiddleware::class
-    ],
+    /** Collection of application middlewares */
+    'middlewares' => function (ContainerInterface $container): Collection {
+        return Collection::make([
+            Middlewares\WhoopsMiddleware::class,
+            new HttpMiddlewares\Expires($container->get('http_expires')),
+        ]);
+    },
 
     /** Array of sort options mapped to their respective classes */
     'sort_methods' => [

app/src/Bootstrap/MiddlewareManager.php

@@ -2,11 +2,8 @@
 
 namespace App\Bootstrap;
 
-use App\Middlewares;
 use DI\Container;
-use Middlewares as HttpMiddlewares;
 use Slim\App;
-use Tightenco\Collect\Support\Collection;
 
 class MiddlewareManager
 {
@@ -33,16 +30,12 @@ class MiddlewareManager
      *
      * @return void
      */
-    public function __invoke()
+    public function __invoke(): void
     {
-        Collection::make($this->container->get('middlewares'))->each(
-            function (string $middleware): void {
+        $this->container->get('middlewares')->each(
+            function ($middleware): void {
                 $this->app->add($middleware);
             }
         );
-
-        $this->app->add(new HttpMiddlewares\Expires(
-            $this->container->get('http_expires')
-        ));
     }
 }