extern crate hyper; use std::io::net::ip::Ipv4Addr; use hyper::server::{Request, Response}; static PHRASE: &'static [u8] = b"Hello World!"; fn hello(_: Request, res: Response) { let mut res = res.start().unwrap(); res.write(PHRASE).unwrap(); res.end().unwrap(); } fn main() { hyper::Server::http(Ipv4Addr(127, 0, 0, 1), 3000).listen(hello).unwrap(); }