Building a Simple Web Server

Building a Simple Web Server\n\nUse the hyper crate to create an HTTP server.\n\ntoml\n[dependencies]\nhyper = { version = \"0.14\", features = [\"full\"] }\n\n\nrust\nuse hyper::{Body, Request, Response, Server};\nuse hyper::service::{make_service_fn, service_fn};\nuse std::convert::Infallible;\n\nasync fn hello(_req: Request<Body>) -> Result<Response<Body>, Infallible> {\n Ok(Response::new(Body::from(\"Hello, Rust!\")))\n}\n\n#[tokio::main]\nasync fn main() {\n let make_svc = make_service_fn(|_conn| async { Ok::<_, Infallible>(service_fn(hello)) });\n let addr = \"127.0.0.1:3000\".parse().unwrap();\n let server = Server::bind(&addr).serve(make_svc);\n println!(\"Listening on http://{}\", addr);\n if let Err(e) = server.await {\n eprintln!(\"server error: {}\", e);\n }\n}\n\n