trying to display sender username

frontend/js/chat.js

@@ -18,4 +18,5 @@ socket.on('chat message', (msg) => {
     item.textContent = msg;
     messages.appendChild(item);
     window.scrollTo(0, document.body.scrollHeight);
-});
+});
+

index.js

@@ -24,7 +24,11 @@ app.use('/socket.io', express.static('node_modules/socket.io/client-dist'));
 app.use(session({
     secret: process.env.SESSION_SECRET,
     resave: true,
-    saveUninitialized: true
+    saveUninitialized: true,
+    cookie: {
+        secure: false,
+        maxAge: 168 * 60 * 60 * 1000
+    }
 }));
 
 // auth login API
@@ -59,19 +63,18 @@ app.get('/', (req, res) => {
 // socket io connection
 io.on('connection', (socket) => {
     console.log('a user connected');
+
     // disconnect event
     socket.on('disconnect', () => {
         console.log('user disconnected');
     });
+
     // chat message event
-    socket.on('chat message', (msg) => {
-        io.emit('chat message ', msg);
-    });
-});
-io.on('connection', (socket) => {
-    socket.on('chat message', (msg) => {
-        console.log('message: ' + msg);
-        io.emit('chat message', msg);
+    socket.on('chat message', (data) => {
+        const { username, message } = data;
+        console.log(username + "sended: " + message);
+        io.emit(username + "sended: " + message);
+
     });
 });
 // run server