From a40a5a500ed6a5a85c0c3845bcae9ae46548d2df Mon Sep 17 00:00:00 2001
From: Michael SCHAL <michaelschal@gmail.com>
Date: Wed, 25 Mar 2026 11:14:17 +0100
Subject: [PATCH] fix: read logo file from disk before uploading (multer uses
 diskStorage)
MIME-Version: 1.0
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req.file.buffer is undefined with diskStorage — must read the temp file
from req.file.path using fs.readFileSync instead.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 server/routes.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/server/routes.ts b/server/routes.ts
index cf33b69..d2d0469 100644
--- a/server/routes.ts
+++ b/server/routes.ts
@@ -1726,9 +1726,12 @@ export async function registerRoutes(app: Express): Promise<Server> {
         }
       }
 
-      // Upload new logo to Cloudinary
+      // Read from disk (multer uses diskStorage, not memoryStorage)
+      const logoBuffer = await fs.promises.readFile(req.file.path);
+      await fs.promises.unlink(req.file.path).catch(() => {});
+
       const uploadResult = await cloudinaryService.uploadLogo(
-        req.file.buffer,
+        logoBuffer,
         req.file.originalname
       );