httpbin 0.3.3

A httpbin reimplementation in rust. Works as a library and as a standalone webserver binary. (not affiliated to the original httpbin)
Documentation 
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extern crate tokio_core;
extern crate futures;
extern crate tk_http;
extern crate tk_listen;
extern crate httpbin;
extern crate env_logger;

use std::env;
use std::time::Duration;

use tokio_core::reactor::Core;
use tokio_core::net::{TcpListener};
use futures::{Stream, Future};

use httpbin::HttpBin;
use tk_http::server::{Config, Proto};
use tk_listen::ListenExt;


fn main() {
    if env::var("RUST_LOG").is_err() {
        env::set_var("RUST_LOG", "warn");
    }
    env_logger::init().expect("init logging");

    let mut lp = Core::new().unwrap();

    let addr = "0.0.0.0:8080".parse().unwrap();
    let listener = TcpListener::bind(&addr, &lp.handle()).unwrap();
    let cfg = Config::new().done();
    let bin = HttpBin::new();
    let h1 = lp.handle();

    let done = listener.incoming()
        .sleep_on_error(Duration::from_millis(100), &h1)
        .map(move |(socket, addr)| {
            Proto::new(socket, &cfg, bin.instantiate(addr), &h1)
            .map_err(|e| { println!("Connection error: {}", e); })
        })
        .listen(1000);

    lp.run(done).unwrap();
}