Usually restful services are behind a loadbalancer/reverse proxy. This proxy could also handle things like security, logging, cache invalidation (the service be

Usually restful services are behind a loadbalancer/reverse proxy. This proxy could also handle things like security, logging, cache invalidation (the service behind the proxy) and service registration (other downstream services). Marking APIs as immutable/up or down (for rollback) state migrations etc. Is really important from a platform perspective, so it also makes sense for APIs to have a cache hook as well. The proxy can then manage the platform state wrt change propagation.