build: finished following tonic tutorial

.gitignore

@@ -1 +1,3 @@
 /target
+
+Cargo.lock

src/client.rs

@@ -1,13 +1,21 @@
-use tonic::{transport::Server, Request, Response, Status};
-
 pub mod proto_core {
 	tonic::include_proto!("core");
 }
 
-use proto_core::session_server::{Session, SessionServer};
-use proto_core::{SessionRequest, SessionResponse};
+use proto_core::session_client::SessionClient;
+use proto_core::SessionRequest;
 
-pub fn main() {
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+	let mut client = SessionClient::connect("http://[::1]:50051").await?;
 
+	let request = tonic::Request::new(SessionRequest {
+		session_id: 0,
+	});
 
+	let response = client.create(request).await?;
+
+	println!("RESPONSE={:?}", response);
+
+	Ok(())
 }

src/server.rs

@@ -1,13 +1,40 @@
 use tonic::{transport::Server, Request, Response, Status};
 
+use proto_core::session_server::{Session, SessionServer};
+use proto_core::{SessionRequest, SessionResponse};
+
 pub mod proto_core {
 	tonic::include_proto!("core");
 }
 
-use proto_core::session_server::{Session, SessionServer};
-use proto_core::{SessionRequest, SessionResponse};
+#[derive(Debug, Default)]
+pub struct TestSession {}
 
-pub fn main() {
+#[tonic::async_trait]
+impl Session for TestSession {
+	async fn create(
+		&self,
+		request: Request<SessionRequest>,
+	) -> Result<Response<SessionResponse>, Status> {
+		println!("Got a request: {:?}", request);
 
+		let reply = proto_core::SessionResponse {
+			session_id: request.into_inner().session_id,
+		};
 
+		Ok(Response::new(reply))
+	}
+}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+	let addr = "[::1]:50051".parse()?;
+	let greeter = TestSession::default();
+
+	Server::builder()
+		.add_service(SessionServer::new(greeter))
+		.serve(addr)
+		.await?;
+
+	Ok(())
 }