Mastercard Developer Hub for FDX APIs PAR+RAR Authorize API
Please refer RFC - [RFC 9126 - OAuth 2.0 Pushed Authorization Requests (ietf.org)](https://datatracker.ietf.org/doc/html/rfc9126) and [RFC 9396 - OAuth 2.0 Rich Authorization Requests (ietf.org)](https://datatracker.ietf.org/doc/html/rfc9396) for implementation.