Sample gRPC client & server in Rust

This is a simple example to illustrate how to implement a gRPC client and server in Rust.

The protobuf file proto/helloworld.proto defines a simple service with one method, SayHello, which takes a HelloRequest and returns a HelloReply.
The build script build.rs generates the needed Rust code from the protobuf file.

The server (src/bin/server) listens on port 50051 and the client (src/bin/client) sends a request to the server waiting for a reply.

Usage

First, you need to run the server:

cargo run --bin server

Then, you can run the client:

cargo run --bin client <name>