gRPC-Go
The Go language implementation of gRPC. HTTP/2 based RPC
...It can efficiently connect services in and across data centers with pluggable support for load balancing, tracing, health checking and authentication. It is also applicable in last mile of distributed computing to connect devices, mobile applications and browsers to backend services. Define your service using Protocol Buffers, a powerful binary serialization toolset and language. Install runtime and dev environments with a single line and also scale to millions of RPCs per second with the framework. Automatically generate idiomatic client and server stubs for your service in a variety of languages and platforms. ...