init

backend/middleware/auth.js

@@ -0,0 +1,17 @@
+// trackaccess-backend/middleware/auth.js
+import jwt from 'jsonwebtoken';
+import dotenv from 'dotenv';
+dotenv.config();
+
+export function authenticateToken(req, res, next) {
+  const authHeader = req.headers['authorization'];
+  const token = authHeader && authHeader.split(' ')[1];
+  if (!token) return res.sendStatus(401);
+
+  jwt.verify(token, process.env.JWT_SECRET, (err, payload) => {
+    if (err) return res.sendStatus(403);
+    req.user = payload;
+    next();
+  });
+}
+