This example demonstrates basic RPC error handling in gRPC.

Run the server, which returns an error if the RPC request's Name field is empty.

$ go run ./server/main.go

Then run the client in another terminal, which does two requests: one with an empty Name field and one with it populated with the current username provided by os/user.

$ go run ./client/main.go

It should print the status codes it received from the server.