Hi, we are implementing multiple rest clients with different auth server using multi-tenancy and ClientRequestFilter for getting tokens.

https://quarkus.io/guides/security-openid-connect-multitenancy#quarkus-oidc_quarkus.oidc.named-tenants-additional-named-tenants

Create a filter implementing ClientRequestFilter as can be found here:
https://quarkus.io/guides/security-openid-connect-client-reference#named-oidc-clients

Configure multiple tenants in application.json/application.yaml.

And finally annotate your RestClient Interfaces to use this filter:

Example:

@RegisterRestClient(configKey = "keycloak")
@RegisterProvider(KeycloakOidcClientRequestFilter.class)
@Path("/clients")
public interface KeycloakClientsResource ...

cheers luke