Add --raw flag to output unmodified JSON token response

[dcluna]

Preserves the raw JSON bytes from the token endpoint response so that fields not modeled in TokenResponse (e.g. email, environment_id, legal_entity_name) are available when --raw is passed.

My use case for this is that one of the OAuth providers I work with returns some data in the response that is important for my application, for example, in this payload:

{
    "access_token": "token",
    "email": "me@email.com",
    "environment_id": "envid-token-here",
    "environment_name": "oauth environment",
    "expires_in": 3600,
    "family_name": "Smith",
    "given_name": "John",
    "legal_entity_id": "legal-entity-id-token-here",
    "legal_entity_name": "oauth environment provider",
    "mode": "None",
    "refresh_token": "ref-token",
    "refresh_token_expires_in": 31536000,
    "token_type": "Bearer",
    "user_id": "uid-token-here"
  }

The environment and legal_entity fields are important for my application, and they should be retrieved from this endpoint.

I'll understand if there are other concerns (I assume security must be one of them) for not including this in the CLI, but just wanted to float the idea and see the feedback.

[mbilski]

Thanks for the patch. Would #150 work for you instead? It keeps the unknown fields but doesn't require a --raw flag.

[dcluna]

Thanks for the patch. Would #150 work for you instead? It keeps the unknown fields but doesn't require a --raw flag.

@mbilski Thanks, I just tested it and it does what I expect, and does not require an extra flag. Would prefer that approach. I'll close this in favor of that PR, thanks for the quick turnaround.