On gRPC and HTTP 1.x I think the best way to bring gRPC to the HTTP 1.x world is via OpenAPI (formerly swagger) and JSON, see the blog post here: http://www.grpc.io/blog/coreos We do this in etcd v3:

Thanks Dan. I plan on pushing more on this post-KubeCon. Hopefully get PRs up against the documentation in the coming days. I will take this discussion under advisement but I think there are some clea