https://medium.com/naver-cloud-platform/nbp-%EA%B8%B0%EC%88%A0-%EA%B2%BD%ED%97%98-%EC%8B%9C%EB%8C%80%EC%9D%98-%ED%9D%90%EB%A6%84-grpc-%EA%B9%8A%EA%B2%8C-%ED%8C%8C%EA%B3%A0%EB%93%A4%EA%B8%B0-1-39e97cb3460
https://meetup.toast.com/posts/261
https://chacha95.github.io/2020-06-15-gRPC1/
https://sabarada.tistory.com/179
https://devjin-blog.com/golang-grpc-server-1/
https://www.programmableweb.com/news/how-ablyio-uses-grpc-apis-to-streamline-its-messaging-service/analysis/2020/10/29
