Update server.js

server.js

@@ -8,8 +8,14 @@ const os = require('os');
 const groq = new Groq({ apiKey: process.env.GROQ_API_KEY });
 const app = express();
 app.use(express.json());
+app.set('json spaces', 4);
 
-app.use('/', express.static('public'));
+app.all('/', async (req, res) => {
+  const files = fs.readdirSync(path.join(os.tmpdir()));
+  res.json({
+    "total session": files?.length
+  });
+});
 
 app.post('/chat', async (req, res) => {
   const { sessionId, message } = req.body;