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use bytes::IntoBuf;
use hyper::service::{make_service_fn, service_fn};
use hyper::{Body, Method, Request, Response, Server, StatusCode};
use futures::future::Future;
use crate::error::Error;
use crate::proto::Message;
use crate::System;
/// This is our service handler. It receives a Request, routes on its
/// path, and returns a Future of a Response.
async fn echo(req: Request<Body>) -> Result<Response<Body>, Error> {
if req.method() != &Method::POST {
let mut bad_request = Response::default();
*bad_request.status_mut() = StatusCode::BAD_REQUEST;
return Ok(bad_request);
}
let whole_body = hyper::body::to_bytes(req.into_body()).await?;
let msg = rmp_serde::decode::from_read::<_, Message>(whole_body.into_buf());
let resp = Message::Ok;
Ok(Response::new(Body::from(
rmp_serde::encode::to_vec_named(&resp)?
)))
}
pub async fn run_rpc_server(sys: &System, rpc_port: u16, shutdown_signal: impl Future<Output=()>) -> Result<(), hyper::Error> {
let addr = ([0, 0, 0, 0], rpc_port).into();
let service = make_service_fn(|_| async { Ok::<_, Error>(service_fn(echo)) });
let server = Server::bind(&addr).serve(service);
let graceful = server.with_graceful_shutdown(shutdown_signal);
println!("Listening on http://{}", addr);
graceful.await
}
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