public/js/index.js

@@ -108,6 +108,15 @@ if (userId && instanceUri) {
 	socket.addEventListener("message", (event) => {
 		const payload = JSON.parse(event.data);
 
+		if (payload.op === 1) {
+			setInterval(() => {
+				socket.send(
+					JSON.stringify({
+						op: 3
+					}))
+			}, payload.d.heartbeat_interval);
+		}
+
 		if (payload.t === "INIT_STATE" || payload.t === "PRESENCE_UPDATE") {
 			updatePresence(payload.d);
 			requestAnimationFrame(() => updateElapsedAndProgress());