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update to latest tower and tower-hyper updates #1

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update to latest tower and tower-hyper updates #1

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31 changes: 11 additions & 20 deletions src/http-client.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,10 +4,11 @@ use hyper::{
Request, Response, Uri,
};
use std::time::Duration;
use tower::{builder::ServiceBuilder, reconnect::Reconnect, Service, ServiceExt};
use tower::{MakeService, Service};
use tower::builder::ServiceBuilder;
use tower_hyper::{
Body,
client::{Builder, Connect},
retry::{Body, RetryPolicy},
util::Connector,
};

Expand All @@ -24,40 +25,30 @@ fn request() -> impl Future<Item = Response<hyper::Body>, Error = ()> {
let connector = Connector::new(HttpConnector::new(1));
let hyper = Connect::new(connector, Builder::new());

// RetryPolicy is a very simple policy that retries `n` times
// if the response has a 500 status code. Here, `n` is 5.
let policy = RetryPolicy::new(5);
// We're calling the tower/examples/server.rs.
let dst = Destination::try_from_uri(Uri::from_static("http://127.0.0.1:3000")).unwrap();

// Now, to build the service! We use two BufferLayers in order to:
// - provide backpressure for the RateLimitLayer, and ConcurrencyLimitLayer
// - meet `RetryLayer`'s requirement that our service implement `Service + Clone`
// - ..and to provide cheap clones on the service.
let maker = ServiceBuilder::new()
// Now, to build the service!
let mut maker = ServiceBuilder::new()
.buffer(5)
.rate_limit(5, Duration::from_secs(1))
.concurrency_limit(5)
.retry(policy)
.buffer(5)
.make_service(hyper);
.service(hyper);

// `Reconnect` accepts a destination and a MakeService, creating a new service
// any time the connection encounters an error.
let client = Reconnect::new(maker, dst);
let client = maker
.make_service(dst)
.map_err(|err| eprintln!("Connect Error {:?}", err));

let request = Request::builder()
.method("GET")
.body(Body::from(Vec::new()))
.body(Vec::new())
.unwrap();

// we check to see if the client is ready to accept requests.
client
.ready()
.map_err(|e| panic!("Service is not ready: {:?}", e))
.and_then(|mut c| {
c.call(request)
.map(|res| res.map(|b| b.into_inner()))
.map(|res| res.map(Body::into_inner))
.map_err(|e| panic!("{:?}", e))
})
}
14 changes: 7 additions & 7 deletions src/http-server.rs
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
use futures::{future, Future, Poll, Stream};
use hyper::{self, Body, Request, Response};
use hyper::{self, Request, Response};
use tokio::net::TcpListener;
use tower::{builder::ServiceBuilder, Service};
use tower_hyper::{body::LiftBody, server::Server};
use tower_hyper::{Body, server::Server};

fn main() {
hyper::rt::run(future::lazy(|| {
Expand All @@ -13,7 +13,7 @@ fn main() {

let maker = ServiceBuilder::new()
.concurrency_limit(5)
.make_service(MakeSvc);
.service(MakeSvc);

let server = Server::new(maker);

Expand All @@ -37,17 +37,17 @@ fn main() {
}

struct Svc;
impl Service<Request<LiftBody<Body>>> for Svc {
type Response = Response<&'static str>;
impl Service<Request<Body>> for Svc {
type Response = Response<Body>;
type Error = hyper::Error;
type Future = future::FutureResult<Self::Response, Self::Error>;

fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(().into())
}

fn call(&mut self, _req: Request<LiftBody<Body>>) -> Self::Future {
let res = Response::new("Hello World!");
fn call(&mut self, _req: Request<Body>) -> Self::Future {
let res = Response::new(Body::from(hyper::Body::from("Hello World!")));
future::ok(res)
}
}
Expand Down