I wrote a post about how to set up Sentry with RedwoodJS. Sentry is a service that provides error monitoring for both the frontend and backend. They will catch exceptions and record the stacktraces with context data so that you can debug issues better. Sentry would be useful in Redwood Apps because it helps a lot in debugging issues in production. Sentry would work on the API and web sides and catch any exceptions that occur and alert you when exceptions happen.
I think Sentry is great for any production system. So you should definitely consider using it (or any of its competitors like Rollbar or Honeybadger)!
Hope it can help anybody else who wants to set up Sentry too.