I can't find IdOAuth2Bearer.pas in this current version of INDY

[MGUERRA2019]

I uninstalled the version that comes with my Embarcadero 12.1 and installed the Indy version that is available. But when I go to use OAuth2 authentication, I try to add the IdOAuth2Bearer.pas to use in the process. What do I do to use this unit? Does it no longer exist in this version? Or is there another way?

[rlebeau]

There has never been an IdOAuth2Bearer.pas unit in Indy. You were likely using a 3rd party unit.

If you want to use OAuth2 authentication with TIdPOP3, TIdSMTP, TIdIMAP4, or TIdDICT, then you need to use the TIdSASLOAuth... classes available in the IdSASLOAuth.pas unit:
https://www.indyproject.org/2024/10/20/sasl-oauth-support-finally-added-to-master/

If you want to use OAuth2 authentication with HTTP/S, that is not implemented at this time, but I do have a work-in-progress TIdBearerAuthentication class in an IdAuthenticationBearer.pas unit, if you want to try that.

[MGUERRA2019]

but which unit do I find the reference for these classes? TIdSASLOAuth10A, TIdSASLOAuth2Bearer and TIdSASLXOAuth2.

[rlebeau]

As I told you in my previous reply, they are in the IdSASLOAuth.pas unit
https://github.com/IndySockets/Indy/blob/master/Lib/Protocols/IdSASLOAuth.pas