gRPC-bidirectional-streaming-go

(tested on Linux-Ubuntu 16.04 Xenial Xerus)

• An example to implement gRPC bidirectional streaming calls using Go and Protobuf

Requirements

1. protoc (v3.x and above)
2. go (v1.16)
3. git
4. protoc plugin for go
5. go implementation of gRPC (using go get command)
6. Some additional go get commands may be required if Makefile can't resolve them.

(You can install these manually [very painful] or use the req-gRPC.sh file provided for Ubuntu 16.04)

If you want to generate proto headers for Go manually

• cd into the proto directory and enter in terminal:

protoc --go_out=. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative users.proto

Generating a go.mod file

• Enter in terminal:

go mod init <link-to-github-repo>

• This file is required else you will get a package is not part of a module error

To resolve conflicts with go modules like version:latest, upgrade, etc...

• Enter in terminal:

go mod tidy

• This formats the go.mod file

To build this example

• Enter in terminal

make all

• This command will generate proto headers, client and server executables

Running the example

1. First start the server with the command:

./ser

2. Then start the client using the command:

./cli

• As the output you will see a stream of messages with requests on server and corresponding responses on the client side as a gRPC bidirectional stream.