proto3

https://segmentfault.com/a/1190000009157513
https://cloud.google.com/apis/design/proto3
https://landing.google.com/sre/

https://microservices.io/patterns/index.html

https://grpc.io/
https://www.cnblogs.com/liujinhong/p/8867391.html
https://github.com/davyxu/protoplus
https://www.cnblogs.com/yzg-14/p/12740370.html
http://cn.voidcc.com/question/p-qfaemnfi-by.html
https://www.jianshu.com/p/a4d77478c13d