actix-website/examples/getting-started/src/main.rs

// <setup>
extern crate actix_web;
use actix_web::{server, App, HttpRequest};

fn index(_req: HttpRequest) -> &'static str {
    "Hello world!"
}
// </setup>
// <main>
fn main() {
    server::new(|| App::new().resource("/", |r| r.f(index)))
        .bind("127.0.0.1:8088")
        .unwrap()
        .run();
}
// </main>