1 use tonic::{transport::Server, Request, Response, Status};
2
3 use hello_world::greeter_server::{Greeter, GreeterServer};
4 use hello_world::{HelloReply, HelloRequest};
5
6 pub mod hello_world {
7 tonic::include_proto!("helloworld");
8 }
9
10 #[derive(Default)]
11 pub struct MyGreeter {}
12
13 #[tonic::async_trait]
14 impl Greeter for MyGreeter {
say_hello( &self, request: Request<HelloRequest>, ) -> Result<Response<HelloReply>, Status>15 async fn say_hello(
16 &self,
17 request: Request<HelloRequest>,
18 ) -> Result<Response<HelloReply>, Status> {
19 println!("Got a request from {:?}", request.remote_addr());
20
21 let reply = hello_world::HelloReply {
22 message: format!("Hello {}!", request.into_inner().name),
23 };
24 Ok(Response::new(reply))
25 }
26 }
27
28 #[tokio::main]
main() -> Result<(), Box<dyn std::error::Error>>29 async fn main() -> Result<(), Box<dyn std::error::Error>> {
30 let addr = "[::1]:50051".parse().unwrap();
31 let greeter = MyGreeter::default();
32
33 println!("GreeterServer listening on {}", addr);
34
35 Server::builder()
36 .add_service(GreeterServer::new(greeter))
37 .serve(addr)
38 .await?;
39
40 Ok(())
41 }
42