From 3871efc026135d243510c88f3d4e7d1c3a86be9b Mon Sep 17 00:00:00 2001
From: Matthias Hochmeister <matthias.hochmeister@apple.com>
Date: Sat, 28 Mar 2026 19:55:57 +0100
Subject: [PATCH] fix: cast multer file type explicitly in uploadBeleg
 controller

---
 backend/src/controllers/buchhaltung.controller.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/backend/src/controllers/buchhaltung.controller.ts b/backend/src/controllers/buchhaltung.controller.ts
index 1965097..17c4769 100644
--- a/backend/src/controllers/buchhaltung.controller.ts
+++ b/backend/src/controllers/buchhaltung.controller.ts
@@ -292,7 +292,8 @@ class BuchhaltungController {
     if (isNaN(id)) { res.status(400).json({ success: false, message: 'Ungültige ID' }); return; }
     if (!req.file)  { res.status(400).json({ success: false, message: 'Keine Datei hochgeladen' }); return; }
     try {
-      const data = await buchhaltungService.uploadBeleg(id, req.file, req.user!.id);
+      const f = req.file as Express.Multer.File;
+      const data = await buchhaltungService.uploadBeleg(id, { filename: f.filename, originalname: f.originalname, mimetype: f.mimetype, size: f.size }, req.user!.id);
       res.status(201).json({ success: true, data });
     } catch (error) {
       logger.error('BuchhaltungController.uploadBeleg', { error });