f45e9c8e4f
The main changes are: * The entry point is how `Http`, the implementation of `ServerProto`. This type has a `new` constructor as well as builder methods to configure it. * A high-level entry point of `Http::bind` was added which returns a `Server`. Binding a protocol to a port requires a socket address (where to bind) as well as the instance of `NewService`. Internally this creates a core and a TCP listener. * The returned `Server` has a few methods to learn about itself, e.g. `local_addr` and `handle`, but mainly has two methods: `run` and `run_until`. * The `Server::run` entry point will execute a server infinitely, never having it exit. * The `Server::run_until` method is intended as a graceful shutdown mechanism. When the provided future resolves the server stops accepting connections immediately and then waits for a fixed period of time for all active connections to get torn down, after which the whole server is torn down anyway. * Finally a `Http::bind_connection` method exists as a low-level entry point to spawning a server connection. This is used by `Server::run` as is intended for external use in other event loops if necessary or otherwise low-level needs. BREAKING CHANGE: `Server` is no longer the pimary entry point. Instead, an `Http` type is created and then either `bind` to receiver a `Server`, or it can be passed to other Tokio things.
55 lines
1.5 KiB
Rust
55 lines
1.5 KiB
Rust
//#![deny(warnings)]
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extern crate futures;
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extern crate hyper;
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extern crate pretty_env_logger;
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#[macro_use]
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extern crate log;
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use hyper::{Get, Post, StatusCode};
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use hyper::header::ContentLength;
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use hyper::server::{Http, Service, Request, Response};
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static INDEX: &'static [u8] = b"Try POST /echo";
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#[derive(Clone, Copy)]
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struct Echo;
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impl Service for Echo {
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type Request = Request;
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type Response = Response;
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type Error = hyper::Error;
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type Future = ::futures::Finished<Response, hyper::Error>;
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fn call(&self, req: Request) -> Self::Future {
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::futures::finished(match (req.method(), req.path()) {
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(&Get, "/") | (&Get, "/echo") => {
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Response::new()
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.with_header(ContentLength(INDEX.len() as u64))
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.with_body(INDEX)
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},
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(&Post, "/echo") => {
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let mut res = Response::new();
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if let Some(len) = req.headers().get::<ContentLength>() {
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res.headers_mut().set(len.clone());
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}
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res.with_body(req.body())
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},
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_ => {
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Response::new()
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.with_status(StatusCode::NotFound)
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}
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})
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}
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}
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fn main() {
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pretty_env_logger::init().unwrap();
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let addr = "127.0.0.1:1337".parse().unwrap();
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let server = Http::new().bind(&addr, || Ok(Echo)).unwrap();
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println!("Listening on http://{}", server.local_addr().unwrap());
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server.run().unwrap();
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}
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