Interesting! I think a 1 second downtime when deploying a new version of the backend is tolerable if the app is a single-page application, because the app can

Interesting! I think a 1 second downtime when deploying a new version of the backend is tolerable if the app is a single-page application, because the app can implement a retry logic client-side. This is possible only if the backend can be stopped and restarted really quickly. Otherwise, a rolling update or green-bue deployment is necessary. Another question: do you expose your Node service directly to the Internet, or is it behind a reverse proxy?