I understand the mechanism of OIDC in Kogito with the help of process-usertasks-with-security-oidc-quarkus example.
However, I have a question about user information. In the given example, the approved field is filled by a Query string. Is there any way to get user information in Kogito? If it doesn't have that feature, can it reflect from header to service?
The integration with the security context inside the Kogito app is something that is on the radar, see https://issues.redhat.com/browse/KOGITO-6162. That would ignore the query string and use the authenticated user. Perhaps, for now, you could create your own endpoint to retrieve the authenticated information as needed and mimic the same API call that is done in the generated endpoint.