grpc-go-course

This repository is meant for keeping the notes and codes for gRPC tutorial in GoLang from Udemy.

Setup

go get -u github.com/golang/protobuf/protoc-gen-go
go get -u google.golang.org/grpc
go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
brew install protobuf

Command to compile proto file

protoc greet/greetpb/greet.proto --go_out=plugins=grpc:.

Command to set GO111MODULE to auto

go env -w GO111MODULE=auto

Unary RPC

Output of server run

Greet Server!
Greet function was invoked with greeting:{first_name:"Anand" last_name:"Verma"}

Output of client run

Hello..I am a client!
Starting to do a unary RPC...
2021/09/15 20:38:49 Response from Greet service: Hello Anand

Calculator service

Output of server run

Calculator Server!
Sum function was invoked with first_num:3 second_num:10

Output of client run

Calculator client
Starting to do a Sum unary RPC...
2021/09/15 22:41:10 Response from calculator service: 13

Server Streaming

Output of server run

go run greet/greet_server/server.go
Greet Server!
GreetManyTimes function was invoked with greeting:{first_name:"Anand" last_name:"Verma"}

Output of client run

go run greet/greet_client/client.go
Hello..I am a client!
Starting to do a Server streaming RPC...
2022/02/23 11:11:29 Response from GreetManyTimes: HelloAnand number 0
2022/02/23 11:11:30 Response from GreetManyTimes: HelloAnand number 1
2022/02/23 11:11:31 Response from GreetManyTimes: HelloAnand number 2
2022/02/23 11:11:32 Response from GreetManyTimes: HelloAnand number 3
2022/02/23 11:11:33 Response from GreetManyTimes: HelloAnand number 4
2022/02/23 11:11:34 Response from GreetManyTimes: HelloAnand number 5
2022/02/23 11:11:35 Response from GreetManyTimes: HelloAnand number 6
2022/02/23 11:11:36 Response from GreetManyTimes: HelloAnand number 7
2022/02/23 11:11:37 Response from GreetManyTimes: HelloAnand number 8
2022/02/23 11:11:38 Response from GreetManyTimes: HelloAnand number 9