Consume external RestAPI in ABAP via PingIdentity-Authentification?

[ETN]

Hello experts,

I already consume an external rest interface in SAP ABAP and use the class "cl_http_client" for this and set up the individual "GET" and "POST" requests as required.

The authentication was previously carried out via Basic-Auth and this connection information (endpoint; username; password) was stored once in the SM59.

QUESTION:
The rest service provider no longer allows basic authentication and wants me to call the service in ABAP using PingIdentity authentication.

I have done a lot of research but have not found anything useful.
I have read that these calls Auth-URL, token retrieval and finally retrieving the access token from PingIdentity server can be handled via SOAUTH (OpenID Connect) in SAP.

Unfortunately, I did not understand the SOAUTH2 transaction at all.

The following information is available to me from PingIdentity:
- AuthorisationURL
- RedirectURL
- TokenAuthURL
- ResponseType
- ResponseMode
- Scope
- CodeChallenge
- ClientID

How should I handle this information in the configuration of OAUTH2?
Is there any documentation on this?

And what do I have to do in the ABAP implementation?
Just query the access token and call the final rest service interface?

Thank you in advance for your support.

Best regards
Etin