Possibility of adding custom query params for the introspection request

[moxue1989]

I have to first say that I am loving this plugin, it made integrating with Keycloak for authentication much easier.

I have a use case where I would like to perform token introspection with a id_token or another custom token name instead of the access_token. But the identity management service I am using (Keycloak) requires that I provide a query param of token_type_hint for the introspection request or else it will default to using access_token. I haven't found an easy way of adding this in with the existing functionality.

Would it be possible to add a configurable map of query params to include as part of the introspection request? Or if there is another way of achieving the same result that would be helpful too!

Thanks!

[moxue1989]

Looks like the library that you are using https://github.com/zmartzone/lua-resty-openidc/blob/master/lib/resty/openidc.lua accepts a introspection_params as part of the options for making the OIDC request. Maybe this can be added and just passed through the schema