hello_world.rs

//Include macros to be able to use `insert_routes!`.
#[macro_use]
extern crate log;
extern crate env_logger;

extern crate rustful;

use std::error::Error;

use rustful::{Server, Context, Response, DefaultRouter};

fn say_hello(context: Context, response: Response) {
    //Get the value of the path variable `:person`, from below.
    let person = match context.variables.get("person") {
        Some(name) => name,
        None => "stranger".into()
    };

    //Use the name from the path variable to say hello.
    response.send(format!("Hello, {}!", person));
}

fn main() {
    env_logger::init();

    println!("Visit http://localhost:8080 or http://localhost:8080/Olivia (if your name is Olivia) to try this example.");

    //Create a DefaultRouter and fill it with handlers.
    let mut router = DefaultRouter::<fn(Context, Response)>::new();
    router.build().many(|node| {
        //Handle requests for root...
        node.then().on_get(say_hello);

        //...and one level below.
        //`:person` is a path variable and it will be accessible in the handler.
        node.path(":person").then().on_get(say_hello);
    });

    //Build and run the server.
    let server_result = Server {
        handlers: router,

        //Turn a port number into an IPV4 host address (0.0.0.0:8080 in this case).
        host: 8080.into(),

        //Use default values for everything else.
        ..Server::default()
    }.run();

    match server_result {
        Ok(_server) => {},
        Err(e) => error!("could not start server: {}", e.description())
    }
}