make my heartbeat

[stephen-dahl]

the readme says

on(event: 'heartbeat', listener: (lsn: string, timestamp: number, shouldRespond: boolean) => Promise<void> | void)
A heartbeat check signal has been received from the server. You may need to run service.acknowledge().

Do I need to handle this event?
Other than shouldRespond, when should I acknowledge or not?
What happens if I don't acknowledge a heartbeat?

[stephen-dahl]

service.on("heartbeat", async (lsn, ts, shouldRespond) => {
  if(shouldRespond) await service.acknowledge(lsn);
});

[nick-allen]

service.on("heartbeat", async (lsn, ts, shouldRespond) => {
  if(shouldRespond) await service.acknowledge(lsn);
});

Just spent several hours tracking down why I was getting connection terminated unexpectedly, and this manual acknowledge in the heartbeat handler wound up being the fix. The acknowledge options in service instantiation appear to be meaningless, and this is basically undocumented, would be great if this was in the basic setup docs if it's intentionally required and not a bug.