Reorganize project part 2

middleware/JsonMiddleware.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Grocy\Middleware;
+
+class JsonMiddleware
+{
+	public function __construct(\Slim\Container $container) {
+		$this->container = $container;
+	}
+
+	protected $container;
+
+	public function __invoke(\Slim\Http\Request $request, \Slim\Http\Response $response, callable $next)
+	{
+		$response = $next($request, $response, $next);
+		return $response->withHeader('Content-Type', 'application/json');
+	}
+}