2dc6202fe7
This introduces the `hyper::service` module, which replaces `tokio-service`. Since the trait is specific to hyper, its associated types have been adjusted. It didn't make sense to need to define `Service<Request=http::Request>`, since we already know the context is HTTP. Instead, the request and response bodies are associated types now, and slightly stricter bounds have been placed on `Error`. The helpers `service_fn` and `service_fn_ok` should be sufficient for now to ease creating `Service`s. The `NewService` trait now allows service creation to also be asynchronous. These traits are similar to `tower` in nature, and possibly will be replaced completely by it in the future. For now, hyper defining its own allows the traits to have better context, and prevents breaking changes in `tower` from affecting hyper. Closes #1461 BREAKING CHANGE: The `Service` trait has changed: it has some changed associated types, and `call` is now bound to `&mut self`. The `NewService` trait has changed: it has some changed associated types, and `new_service` now returns a `Future`. `Client` no longer implements `Service` for now. `hyper::server::conn::Serve` now returns `Connecting` instead of `Connection`s, since `new_service` can now return a `Future`. The `Connecting` is a future wrapping the new service future, returning a `Connection` afterwards. In many cases, `Future::flatten` can be used.
45 lines
1.1 KiB
Rust
45 lines
1.1 KiB
Rust
#![deny(warnings)]
|
|
extern crate futures;
|
|
extern crate hyper;
|
|
extern crate pretty_env_logger;
|
|
extern crate tokio;
|
|
|
|
use futures::Future;
|
|
|
|
use hyper::{Body, Method, Request, Response, Server, StatusCode};
|
|
use hyper::service::service_fn_ok;
|
|
|
|
static INDEX: &'static [u8] = b"Try POST /echo";
|
|
|
|
// Using service_fn_ok, we can convert this function into a `Service`.
|
|
fn echo(req: Request<Body>) -> Response<Body> {
|
|
match (req.method(), req.uri().path()) {
|
|
(&Method::GET, "/") | (&Method::POST, "/") => {
|
|
Response::new(INDEX.into())
|
|
},
|
|
(&Method::POST, "/echo") => {
|
|
Response::new(req.into_body())
|
|
},
|
|
_ => {
|
|
let mut res = Response::new(Body::empty());
|
|
*res.status_mut() = StatusCode::NOT_FOUND;
|
|
res
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
fn main() {
|
|
pretty_env_logger::init();
|
|
|
|
let addr = ([127, 0, 0, 1], 1337).into();
|
|
|
|
let server = Server::bind(&addr)
|
|
.serve(|| service_fn_ok(echo))
|
|
.map_err(|e| eprintln!("server error: {}", e));
|
|
|
|
println!("Listening on http://{}", addr);
|
|
|
|
tokio::run(server);
|
|
}
|