So I need to send 2 separate http requests or use a redirect?
  1. Send request that creates backups
  2. Send request that extracts the latest backup name from the list of all backups and returns it to me?

Any chance db:create-backup, could return the name of the new backup instead of an empty sequence?

I'm getting a lot of lag in my applications from having to perform so many calls or redirects to get anything from the server after an update. 

Or maybe you have a better approach to propose?