Scriptrunner rest call example

[Matthew Via]

There are things not exposed via the Stash Java API (specifically default reviewers) that *are* accessible via the rest api.  I see how to make generic rest calls with the groovy scripting that Scriptrunner provides, but whats the best way to do it using authentication -- such as using the current user?  I don't want to hardcode passwords or service accounts into my Scriptrunner scripts if possible.

Are there any helpers in Scriptrunner to do this?