Amazon Cognito support?

[space55]

Hello,

I just had a quick question. Are there any plans to provide support for Amazon Cognito?

They have an "oddity" with how they accept the client ID & secret on the TOKEN route: https://docs.aws.amazon.com/cognito/latest/developerguide/token-endpoint.html

If the client was issued a secret, the client must pass its client_id and client_secret in the authorization header through Basic HTTP authorization. The secret is Basic Base64Encode(client_id:client_secret).

Last I checked, this wasn't standard, but it's also possible I'm completely misremembering the RFC.

Are there any plans to support this in the library? I can write a PR if needed.

Thanks!

[jtroussard]

Please feel free to submit PR