When should I call the await httpTerminator.terminate();

[Ruben Rajkowski]

I assume I have to wrap this in a async method or callback like process.on('SIGTERM', callback).
When do you recommend I run the await httpTerminator.terminate() call?

Thanks Ruben

[Gajus Kuizinas]

You'd usually use it either because some error occurred that requires you to terminate the service or because you've received an external signal (such as SIGTERM example you gave).

I use http-terminator in combination with https://github.com/gajus/lightship to terminate my services when Kubernetes instructs to shutdown the service.

[Rohit Roy Chowdhury]

@gajus Is this the correct way?

const server = app.listen(process.env.PORT, () => {
  console.log(`Listening on localhost:${process.env.PORT}`);
});

const httpTerminator = createHttpTerminator({
  server
});

process.on('SIGTERM', async () => {
  console.log("Shutting down server.");
  await httpTerminator.terminate();
  process.exit(0);
});