warp 0.1.7

serve the web at warp speeds
Documentation 
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#![deny(warnings)]
extern crate warp;
extern crate hyper;
extern crate handlebars;
#[macro_use]
extern crate serde_json;
extern crate serde;

use std::error::Error;
use std::sync::Arc;

use warp::Filter;
use handlebars::Handlebars;
use serde::Serialize;

struct WithTemplate<T: Serialize> {
    name: &'static str,
    value: T,
}

fn render<T>(template: WithTemplate<T>, hbs: Arc<Handlebars>) -> impl warp::Reply where T: Serialize {
    hbs.render(template.name, &template.value).unwrap_or_else(|err| {
        err.description().to_owned()
    })
}

fn main() {
    let template = "<!DOCTYPE html>
                    <html>
                      <head>
                        <title>Warp Handlebars template example</title>
                      </head>
                      <body>
                        <h1>Hello {{user}}!</h1>
                      </body>
                    </html>";

    let mut hb = Handlebars::new();
    // register the template
    hb.register_template_string("template.html", template).unwrap();

    // Turn Handlebars instance into a Filter so we can combine it
    // easily with others...
    let hb = Arc::new(hb);

    // Create a reusable closure to render template
    let handlebars = move |with_template| {
        render(with_template, hb.clone())
    };

    //GET /
    let route = warp::get2()
        .and(warp::index())
        .map(|| {
            WithTemplate {
                name: "template.html",
                value: json!({"user" : "Warp"})
            }
        })
        .map(handlebars);

    warp::serve(route).run(([127, 0, 0, 1], 3030));
}