working on new login sign up flow

backend/middleware/auth.js

@@ -11,7 +11,14 @@ const authenticateToken = async (req, res, next) => {
 
   try {
     const decoded = jwt.verify(token, process.env.JWT_SECRET);
-    const user = await User.findByPk(decoded.userId);
+    // Handle both 'userId' and 'id' for backward compatibility
+    const userId = decoded.userId || decoded.id;
+    
+    if (!userId) {
+      return res.status(401).json({ error: 'Invalid token format' });
+    }
+    
+    const user = await User.findByPk(userId);
     
     if (!user) {
       return res.status(401).json({ error: 'User not found' });
@@ -20,6 +27,7 @@ const authenticateToken = async (req, res, next) => {
     req.user = user;
     next();
   } catch (error) {
+    console.error('Auth middleware error:', error);
     return res.status(403).json({ error: 'Invalid or expired token' });
   }
 };