Update index.js

index.js

@@ -159,7 +159,7 @@ app.post('/v1/generate-key', async (req, res) => {
     const existingUser = await collection.findOne({ owner: userIdNumber });
 
     if (existingUser) {
-      return res.status(200).json({ apiKey: existingUser.key });
+      return res.status(200).json({ apiKey: existingUser.key, createdAt: existingUser.createdAt });
     }
     const userDocument = {
       key: newKey,