Function server 

pub fn server<F, I, Sf>(factory: F) -> HttpServer<NoConfig, F, I, Sf>
where
    F: AsyncFn(&()) -> I + Send + Clone + 'static,
    I: IntoServiceFactory<Sf, (), Request>,
    Sf: ServiceFactory<(), Request> + 'static,
    Sf::Res: Into<Response>,
    Sf::Error: ResponseError,
    Sf::InitError: IntoFailure,

Create new http server with application factory.

use ntex::{web, SharedCfg};

#[ntex::main]
async fn main() -> std::io::Result<()> {
    web::server(async |_| {
        web::App::new()
            .service(web::resource("/").to(async || { web::HttpResponse::Ok() }))
        })
        .bind("127.0.0.1:59090", SharedCfg::default())?
        .run()
        .await
}