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//! Asynchronous Services
//!
//! A [`Service`](Service) is a trait representing an asynchronous
//! function of a request to a response. It's similar to
//! `async fn(Request) -> Result<Response, Error>`.
//!
//! The argument and return value isn't strictly required to be for HTTP.
//! Therefore, hyper uses several "trait aliases" to reduce clutter around
//! bounds. These are:
//!
//! - `HttpService`: This is blanketly implemented for all types that
//!   implement `Service<http::Request<B1>, Response = http::Response<B2>>`.
//!
//! # HttpService
//!
//! In hyper, especially in the server setting, a `Service` is usually bound
//! to a single connection. It defines how to respond to **all** requests that
//! connection will receive.
//!
//! The helper [`service_fn`](service_fn) should be sufficient for most cases, but
//! if you need to implement `Service` for a type manually, you can follow the example
//! in `service_struct_impl.rs`.

mod http;
mod service;
mod util;

#[cfg(all(any(feature = "http1", feature = "http2"), feature = "server"))]
pub use self::http::HttpService;
#[cfg(all(
    any(feature = "http1", feature = "http2"),
    any(feature = "server", feature = "client")
))]
pub use self::service::Service;

pub use self::util::service_fn;