Separated laravel app to its own folder (#540)

api/app/Http/Controllers/Content/FileUploadController.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Http\Controllers\Content;
+
+use App\Http\Controllers\Controller;
+use App\Http\Controllers\Forms\PublicFormController;
+use Illuminate\Http\Request;
+use Illuminate\Support\Str;
+
+class FileUploadController extends Controller
+{
+    /**
+     * Upload file to local temp
+     *
+     * @return \Illuminate\Http\JsonResponse
+     */
+    public function upload(Request $request)
+    {
+        $request->validate(['file' => 'required|file']);
+        $uuid = (string) Str::uuid();
+        $path = $request->file('file')->storeAs(PublicFormController::TMP_FILE_UPLOAD_PATH, $uuid);
+
+        return response()->json([
+            'uuid' => $uuid,
+            'key' => $path,
+        ], 201);
+    }
+}