use hyper::{Body, Request, Response, Server}; // Import the routerify prelude traits. use routerify::prelude::*; use routerify::{Middleware, Router, RouterService}; use std::{convert::Infallible, net::SocketAddr}; // A handler for "/" page. async fn home_handler(_: Request) -> Result, Infallible> { Ok(Response::new(Body::from("Home page"))) } // A handler for "/about" page. async fn about_handler(_: Request) -> Result, Infallible> { Ok(Response::new(Body::from("About page"))) } // A middleware which logs an http request. async fn logger(req: Request) -> Result, Infallible> { println!("{} {} {}", req.remote_addr(), req.method(), req.uri().path()); Ok(req) } fn router() -> Router { // Create a router and specify the logger middleware and the handlers. // Here, "Middleware::pre" means we're adding a pre middleware which will be executed // before any route handlers. Router::builder() .middleware(Middleware::pre(logger)) .get("/", home_handler) .get("/about", about_handler) .build() .unwrap() } #[tokio::main] async fn main() { let router = router(); // Create a Service from the router above to handle incoming requests. let service = RouterService::new(router).unwrap(); // The address on which the server will be listening. let addr = SocketAddr::from(([127, 0, 0, 1], 3001)); // Create a server by passing the created service to `.serve` method. let server = Server::bind(&addr).serve(service); println!("App is running on: {}", addr); if let Err(err) = server.await { eprintln!("Server error: {}", err); } }