gRPC Showcase

This is a gRPC best practise repo, which contains:

• Google API design for gRPC and HTTP REST service
• protocol buffers code gen via docker image, so you don't need to install all the toolchain
• best practise for writing a gRPC service
• multi-stage docker build with distroless image
• runs on Kubernetes and Istio
• integrates gRPC health probe protocol
• gRPC-JSON transcoder in Istio envoy sidecar, so you can call gRPC service via HTTP REST JSON requests
• cutting edge technology
• automation all the workflows

Up and Running

You must have a working Kubernetes and Istio environment and config its ingress, simply run,

$ make deploy

Then test the gRPC client(requires Go),

$ go build -o cli ./cmd/cli
$ ./cli -addr=localhost:80 -name=World # replace with your server address
2020/05/05 13:35:48 Greeting: Hello World

Or just play with curl,

$ curl -d '{"name": "World"}' "localhost/v1/say" # replace with your server address
{
 "message": "Hello World"
}

TODO

• sending arbitrary http request body in addition to JSON
• replying arbitrary http response body in addition to JSON
• rich google error status
• custom error
• request params validation
• testing
• other gRPC features, like api listing, interceptor, etc.

If you have any questions or contributions feel free to file an issue.

Have fun!