Update server.js

server.js

@@ -35,7 +35,7 @@ function authenticateProxyKey(req, res, next) {
 }
 
 // Define routes
-app.post('/upload', upload.single('file'), async (req, res) => {
+app.post('/upload', authenticateProxyKey, upload.single('file'), async (req, res) => {
   try {
     // Extract the uploaded file and other form data
     const fileData = req.file;