chapter7/

README

Chapter 7 - Out of the box features

This is based on the work done in chapter6 folder.

This folder shows how more advanced features that comes out of the box with gRPC (error handling, interceptors, load balancing, ...). The main code for the implementations can be found in the following files:

• client/main.go
• client/interceptors.go
• server/impl.go
• server/interceptors.go

Running the code

Server

go run

$ buf generate proto # or with protoc (see chapter4/README.md)
$ go run ./server 0.0.0.0:50051

bazel run

$ bazel run //server:server 0.0.0.0:50051

Client

go run

# if not done before `buf generate proto` or with protoc (see chapter4/README.md)
$ go run ./client 0.0.0.0:50051

bazel run

$ bazel run //client:client 0.0.0.0:50051

Kubernetes (k8s)

In order to show the load balancing effects, this folder introduces configurations for deploying the server and client to Kubernetes.

A Kubernetes is required in order to make the following command work. If you have kind installed, you can run the following command to quickly spin up a cluster: kind create cluster --config k8s/kind.yaml.

Server

$ kubectl apply -f k8s/server.yaml

Client

$ kubectl apply -f k8s/client.yaml