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docs(server): add bigger example to server module (#2539)

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It can sometimes be tricky to discover where to use `move` closures,
`async move {}`, and `.clone()` when creating a server. This adds a
slightly more bigger example that will hopefully help some.

Fixes https://github.com/hyperium/hyper/issues/2446
This commit is contained in:
David Pedersen
2021-05-12 01:56:01 +02:00
committed by GitHub
parent e79d09396d
commit 8a05f8eec1
1 changed files with 62 additions and 1 deletions
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63
src/server/mod.rs
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@@ -16,7 +16,7 @@
//!
//! [`Server`](Server) accepts connections in both HTTP1 and HTTP2 by default.
//!
//! ## Example
//! ## Examples
//!
//! ```no_run
//! use std::convert::Infallible;
@@ -84,6 +84,67 @@
//! # fn main() {}
//! ```
//!
//! Passing data to your request handler can be done like so:
//!
//! ```no_run
//! use std::convert::Infallible;
//! use std::net::SocketAddr;
//! use hyper::{Body, Request, Response, Server};
//! use hyper::service::{make_service_fn, service_fn};
//! use hyper::server::conn::AddrStream;
//!
//! #[derive(Clone)]
//! struct AppContext {
//! // Whatever data your application needs can go here
//! }
//!
//! async fn handle(
//! context: AppContext,
//! addr: SocketAddr,
//! req: Request<Body>
//! ) -> Result<Response<Body>, Infallible> {
//! Ok(Response::new(Body::from("Hello World")))
//! }
//!
//! # #[cfg(feature = "runtime")]
//! #[tokio::main]
//! async fn main() {
//! let context = AppContext {
//! // ...
//! };
//!
//! // A `MakeService` that produces a `Service` to handle each connection.
//! let make_service = make_service_fn(move |conn: &AddrStream| {
//! // We have to clone the context to share it with each invocation of
//! // `make_service`. If your data doesn't implement `Clone` consider using
//! // an `std::sync::Arc`.
//! let context = context.clone();
//!
//! // You can grab the address of the incoming connection like so.
//! let addr = conn.remote_addr();
//!
//! // Create a `Service` for responding to the request.
//! let service = service_fn(move |req| {
//! handle(context.clone(), addr, req)
//! });
//!
//! // Return the service to hyper.
//! async move { Ok::<_, Infallible>(service) }
//! });
//!
//! // Run the server like above...
//! let addr = SocketAddr::from(([127, 0, 0, 1], 3000));
//!
//! let server = Server::bind(&addr).serve(make_service);
//!
//! if let Err(e) = server.await {
//! eprintln!("server error: {}", e);
//! }
//! }
//! # #[cfg(not(feature = "runtime"))]
//! # fn main() {}
//! ```
//!
//! [`tower::make::Shared`]: https://docs.rs/tower/latest/tower/make/struct.Shared.html
pub mod accept;