#![feature(async_await)] #![deny(warnings)] use hyper::{Body, Request, Response, Server}; use hyper::service::{make_service_fn, service_fn}; async fn hello(_: Request) -> Result, hyper::Error> { Ok(Response::new(Body::from("Hello World!"))) } #[hyper::rt::main] pub async fn main() -> Result<(), Box> { pretty_env_logger::init(); let addr = ([127, 0, 0, 1], 3000).into(); let server = Server::bind(&addr) .serve(make_service_fn(|_| { // This is the `Service` that will handle the connection. // `service_fn` is a helper to convert a function that // returns a Response into a `Service`. async { Ok::<_, hyper::Error>(service_fn(hello)) } })); println!("Listening on http://{}", addr); server.await?; Ok(()) }