run build docker

docker-composer up --build

create file pb

docker-composer exec grpc protoc --go_out=plugins=grpc:chat chat.proto

run server

docker-composer exec grpc go run server/main.go
2022/09/12 15:01:18 Receive message body from client: %s Hello From Client

run client

docker-composer exec grpc go run client/main.go
2022/09/12 15:01:33 Response from server: Hello From the Server!