gRPC vs REST

	gRPC	REST
Full Name	Google Remote Procedure Call	REpresentational State Transfer
Payload	Protobuf	JSON(typically)
	Unreadable Binary Data	Readable Data
HTTP	HTTP/2	HTTP 1.1/HTTP/2
Performance	Faster
	Type Safe
	Cross Language	Cross Language
	Need setup a client	No need to setup a client
	Any function	GET/PUT/DELETE/POST/....

gRPC+Protobuf的方案应该会越来越多，尤其在某些内存受限的情况下，性能优势和部署需要的内存都有优势。
利用HTTP/2具有双向连接能力。

gRPC上搭建一个Nginx Proxy可以转换为REST Web Service。