Go Protocol Buffer

Install

brew install protobuf && \
brew install protoc-gen-go

Summary

• Protocol Buffers data format (improvement over XML and JSON). Invented by Google.
• Define a protobuf schema in the .proto file
• Compile using the protoc binary

protoc --go_out=. *.proto

• Rename person.pb.go package from __ to main

go run main.go person.pb.go
-- OUTPUT --
[10 6 69 108 108 105 111 116 16 24]
24
Elliot

Nested fields

part of our .proto file:

message SocialFollowers {
    int32 youtube = 1;
    int32 x = 2;
}

message Person {
    string name = 1;
    int32 age = 2;
    SocialFollowers socialFollowers = 3;
}

Go gRPC Client and Server

Install

brew install protoc-gen-go-grpc

Summary

Making a local chat Go module and compiling with a special option to avoid unimplemented server errors.

protoc --go_out=./chat --go-grpc_out=require_unimplemented_servers=false:./chat ./chat/chat.proto

Client and server .go files added. Registers a service with two rpcs and client sends and receives modified data to and from the server.