Simple response! macro for Iron with example.

iron_response_macro.rs

extern crate iron;

use iron::prelude::*;

macro_rules! response {
    ( $( $x:expr ),* ) => {
        {
            Ok(Response::with(($(
                $x,
            )*)))
        }
    };
}

fn hello_world(_: &mut Request) -> IronResult<Response> {
    response!(iron::status::Ok, "Hello World")
}

fn main() {
    Iron::new(hello_world).http("localhost:3000").unwrap();
}