use actix_http::HttpService; use actix_server::Server; use actix_service::map_config; use actix_web::{dev::AppConfig, get, App}; #[get("/")] async fn index() -> &'static str { "Hello, world. From Actix Web!" } #[tokio::main(flavor = "current_thread")] async fn main() -> std::io::Result<()> { Server::build() .bind("hello-world", "127.0.0.1:8080", || { // construct actix-web app let app = App::new().service(index); HttpService::build() // pass the app to service builder // map_config is used to map App's configuration to ServiceBuilder .finish(map_config(app, |_| AppConfig::default())) .tcp() })? .run() .await }