use hyper::{Body, Request, Response, Server, StatusCode}; use routerify::{Router, RouterService}; use std::io; use std::net::SocketAddr; // A handler for "/" page. async fn home_handler(_: Request) -> Result, io::Error> { Ok(Response::new(Body::from("Home page"))) } // A handler for "/about" page. async fn about_handler(_: Request) -> Result, io::Error> { Ok(Response::new(Body::from("About page"))) } // Define a handler to handle any non-existent routes i.e. a 404 handler. async fn handler_404(_: Request) -> Result, io::Error> { Ok(Response::builder() .status(StatusCode::NOT_FOUND) .body(Body::from("Page Not Found")) .unwrap()) } fn router() -> Router { // Create a router and specify the the handlers. Router::builder() .get("/", home_handler) .get("/about", about_handler) // Add a route to handle 404 routes. .any(handler_404) .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); } }