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use hyper::service::{make_service_fn, service_fn};
use hyper::{Body, Request, Response, Server};
use std::convert::Infallible;
use std::net::SocketAddr;
#[tokio::main]
async fn main() {
// We'll bind to 127.0.0.1:3000
let addr = SocketAddr::from(([127, 0, 0, 1], 3000));
// A `Service` is needed for every connection, so this
// creates one from our `hello_world` function.
let make_svc = make_service_fn(|_conn| async {
// service_fn converts our function into a `Service`
Ok::<_, Infallible>(service_fn(hello_world))
});
// And construct the `Server` like normal...
let server = Server::bind(&addr).serve(make_svc);
// And now add a graceful shutdown signal...
let graceful = server.with_graceful_shutdown(shutdown_signal());
// Run this server for... forever!
if let Err(e) = graceful.await {
eprintln!("server error: {}", e);
}
}
async fn hello_world(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
Ok(Response::new("Hello, World".into()))
}
async fn shutdown_signal() {
// Wait for the CTRL+C signal
tokio::signal::ctrl_c()
.await
.expect("failed to install CTRL+C signal handler");
}
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