I was trying to write OAuth2 plugin for Camunda , I followed the interface
org.camunda.bpm.engine.impl.identity.ReadOnlyIdentityProvider
and I followed the process for LDAP, to replace the auth and get user list from Oauth2 provider and also the groups.
https://docs.camunda.org/manual/7.7/user-guide/process-engine/identity-service/
Is there any implantation is there for Camunda OAuth2 ?