initail

public/index.html

@@ -3,13 +3,17 @@
 <script>
     const socket = io("http://localhost:8201", {
     path: '/ws/socket.io',
-    query: 'id=channel'
+    query: 'id=1000_channel'
     });
-    socket.on('data', (arg) => {
+    socket.on('data', (arg, callback) => {
 		const doc = document.getElementById('test');
 		const div = document.createElement('div');
 		div.innerHTML = JSON.stringify(arg);
 		doc.append(div);
+
+		callback({
+			received: true
+        });
     });
 </script>