spring-boot microservice with gRPC starter and protobuf3 and eureka. It can efficiently connect services in and across data centers with pluggable support for load balancing, tracing, health checking, and authentication.

spring-boot with eureka. when a client registers with Eureka, it provides meta-data about itself such as host, port, health indicator URL, home page, and other details. Eureka receives heartbeat messages from each instance belonging to a service