Added a simple autocomplete mechanism for the footprint URL.

src/Controller/TypeaheadController.php

@@ -0,0 +1,69 @@
+<?php
+/**
+ *
+ * part-db version 0.1
+ * Copyright (C) 2005 Christoph Lechner
+ * http://www.cl-projects.de/
+ *
+ * part-db version 0.2+
+ * Copyright (C) 2009 K. Jacobs and others (see authors.php)
+ * http://code.google.com/p/part-db/
+ *
+ * Part-DB Version 0.4+
+ * Copyright (C) 2016 - 2019 Jan Böhmer
+ * https://github.com/jbtronics
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ *
+ */
+
+namespace App\Controller;
+
+
+use App\Services\BuiltinAttachmentsFinder;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\Routing\Annotation\Route;
+use Symfony\Component\Serializer\Encoder\JsonEncoder;
+use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
+use Symfony\Component\Serializer\Serializer;
+
+/**
+ * In this controller the endpoints for the typeaheads are collected
+ * @Route("/typeahead")
+ * @package App\Controller
+ */
+class TypeaheadController extends AbstractController
+{
+    /**
+     * @Route("/builtInRessources/search/{query}", name="typeahead_builtInRessources", requirements={"query"= ".+"})
+     */
+    public function builtInRessources(Request $request, string $query, BuiltinAttachmentsFinder $finder)
+    {
+        $array = $finder->find($query);
+
+
+        $normalizers = [
+            new ObjectNormalizer()
+        ];
+        $encoders =  [
+            new JsonEncoder()
+        ];
+        $serializer = new Serializer($normalizers, $encoders);
+        $data = $serializer->serialize($array, 'json');
+        return new JsonResponse($data, 200, [], true);
+    }
+}