[keycloak-user] Keycloak - Spring-Security-adapter: Call method after authentication

I develop a rest based api application with spring security and keycloak. I'd like to execute custom code when users are log in in to my application in any rest controller, I try with my filter putting in the last position of filter chain, but the KeycloakPrincipal in the request is null (seems that Keycloak value was set after that) How can I execute custom code when users are login in the right way? Thanx