enable tower-async-http usage in hello_hyper example

tower-async-hyper/Cargo.toml

@@ -28,6 +28,7 @@ hyper-util = { version = "0.1", features = ["server", "server-auto", "tokio"] }
 tokio = { version = "1.0", features = ["full"] }
 tower-async = { path = "../tower-async", features = ["full"] }
 tower-async-http = { path = "../tower-async-http", features = ["full"] }
+tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 
 [package.metadata.docs.rs]
 all-features = true

tower-async-hyper/examples/hello_hyper.rs

@@ -5,23 +5,34 @@ use hyper::body::Incoming;
 use hyper_util::rt::{TokioExecutor, TokioIo};
 use hyper_util::server::conn::auto::Builder;
 use tokio::net::TcpListener;
-use tower_async::ServiceBuilder;
+use tracing_subscriber::filter::LevelFilter;
+use tracing_subscriber::layer::SubscriberExt;
+use tracing_subscriber::util::SubscriberInitExt;
+use tracing_subscriber::{fmt, EnvFilter};
 
+use tower_async::ServiceBuilder;
+use tower_async_http::ServiceBuilderExt;
 use tower_async_hyper::TowerHyperServiceExt;
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+    tracing_subscriber::registry()
+        .with(fmt::layer())
+        .with(
+            EnvFilter::builder()
+                .with_default_directive(LevelFilter::DEBUG.into())
+                .from_env_lossy(),
+        )
+        .init();
+
     let service = ServiceBuilder::new()
         .timeout(std::time::Duration::from_secs(5))
         .map_request(|req| req)
-        // .decompression()
-        // .compression()
+        .decompression()
+        .compression()
         // .follow_redirects()
-        // .trace_for_http()
+        .trace_for_http()
         .service_fn(|_req: Request<Incoming>| async move {
-            // req.into_body().data().await;
-            // let bytes = body::to_bytes(req.into_body()).await?;
-            // let body = String::from_utf8(bytes.to_vec()).expect("response was not valid utf-8");
             Response::builder()
                 .status(StatusCode::OK)
                 .header("content-type", "text/plain")