I have a question about the chat implemented by socket.io.

Currently, most of the messenger functions have been completed, but the problem is that they are bringing the most recent conversation together by distributing the list of chat rooms. (ex. Kakao Talk)

The problem is that when someone sends a message in the chat room, you need to update the message you received recently and re-mark it on the list

            setInterval(function() {
                socket.emit('rooms', id);
            }, 1000);

Should I keep bringing up the list of rooms in this form...? If so, the list shown will keep blinking and the server will be burdened...

What should I do?