Download the binaries from the following link

 https://github.com/protocolbuffers/protobuf/releases/tag/v3.11.4 

Add the bin folder to the path

 export PATH={path_to_protoc}:$PATH

Add GOPATH to the path aswell

export PATH=$GOPATH:$PATH

Download the protoc-gen-go

go get -u github.com/golang/protobuf/protoc-gen-go

Install the protoc-gen-go using the make command.

Example to generate the go output:

protoc -I=/Users/apple/Desktop/go_understanding/src/github.com/srikanthbhandary/go_protobuf_example/proto --go_out=. /Users/apple/Desktop/go_understanding/src/github.com/srikanthbhandary/go_protobuf_example/proto/address.proto

How to Run?

go run main.go addressbook.data

How to add data?

go run add_person.go addressbook.data       

Second example handles the octate stream of protobuf int he server. Where client.py sends the binary content through octate stream, and the go server.py receives and prints the message.