code: protected String getFinalResponseEventId(final WebApplicationService service, final Response response, final RequestContext requestContext) {
          val eventId = response.getResponseType().name().toLowerCase();
          LOGGER.debug("Signaling flow to redirect to service [{}] via event [{}]", service, eventId);
          return eventId;
      }
docs: Gets final response event id.
  
  @param service        the service
  @param response       the response
  @param requestContext the request context
  @return the final response event id