User details for external connection

Hi there. I am aware that the user name of the authenticated user is available to a Shiny application using the environment variable SHINYPROXY_USERNAME but I wonder if it’s possible to get the password as well?

If I want a system that uses the same credentials to log into a database, or access a service through an API, for example, it would be nice if there was a way to do that without having to get their password again.

I hope this makes sense…