Referências sobre gRPC
The complete gRPC course [Golang, Java, Protobuf]
https://youtube.com/playlist?list=PLy_6D98if3UJd5hxWNfAqKMr15HZqFnqf
imersao-fullcycle-3
https://github.com/ImGabreuw/imersao-fullcycle-3/blob/master/notes/slices-grpc.md
Iniciando com gRPC
https://medium.com/mobicareofficial/iniciando-com-grpc-c48d81774266