code base

backend/src/middleware/upload.js

@@ -0,0 +1,24 @@
+import multer from 'multer';
+
+const storage = multer.memoryStorage();
+const upload = multer({ storage });
+
+const uploadExpenses = (req, res, next) => {
+
+  const expenseProofFields = Array.from({ length: 10 }, (_, index) => ({
+    name: `expenses[${index}].expenseProof`,
+    maxCount: 1,
+  }));  
+
+  const fields = [
+    { name: 'proofOfTravel', maxCount: 1 },
+    { name: 'proofOfAccommodation', maxCount: 1 },
+    { name: 'proofOfAttendance', maxCount: 1 },
+    ...expenseProofFields,
+  ];
+
+  upload.fields(fields)(req, res, next);
+};
+
+
+export default uploadExpenses;