Question: How to set audience

[fredrik-jansson-se]

Hi and thank you for maintaining this library, it's excellent!

I'm porting some old code and I can't figure out how to set the audience for the authorization call.

In our old code we do:

      let req = client
          .get(format!("{}/authorize", env_info.domain))
          .query(&[
              ("response_type", "code"),
              ("code_challenge", code_challenge),
              ("code_challenge_method", "S256"),
              ("client_id", env_info.client_id),
              ("redirect_uri", REDIRECT_URI),
              (
                  "scope",
                  "...
              ),
              ("audience", env_info.audience),
              ("state", state),
          ])
          .build()?;

I can't figure out how to do this using the oauth2 library. Any help is greatly appreciated.

[fredrik-jansson-se]

I found that I could do .add_extra_param("audience", env_info.audience).

Not sure if setting audience is common enough to merit a helper function, if not, please feel free to close this issue.