copy example skeleton from rust async book

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diff --git a/Cargo.toml b/Cargo.toml
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+
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+#reqwest = { version = "0.10", features = ["blocking"] }
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..92d030a
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,47 @@
+
+use hyper::service::{make_service_fn, service_fn};
+use hyper::{Body, Client, Request, Response, Server, Uri};
+use std::net::SocketAddr;
+
+async fn upstream_req(req: Request<Body>) -> Result<Response<Body>, hyper::Error> {
+    println!("hit: {}", req.uri());
+    let req_uri = req.uri();
+    let upstream_uri = Uri::builder()
+        .scheme("http")
+        .authority("localhost:9200")
+        .path_and_query(req_uri.path_and_query().unwrap().as_str())
+        .build()
+        .unwrap();
+
+    let res = Client::new().get(upstream_uri).await?;
+    println!("resp!");
+    Ok(res)
+}
+
+async fn shutdown_signal() {
+    // Wait for the CTRL+C signal
+    tokio::signal::ctrl_c()
+        .await
+        .expect("failed to install CTRL+C signal handler");
+}
+
+async fn run_server(addr: SocketAddr) {
+    println!("Listening on http://{}", addr);
+
+    let serve_future = Server::bind(&addr)
+        .serve(make_service_fn(|_| async {
+            Ok::<_, hyper::Error>(service_fn(upstream_req))
+        }));
+    let graceful = serve_future.with_graceful_shutdown(shutdown_signal());
+
+    if let Err(e) = graceful.await {
+        eprintln!("server error: {}", e);
+    }
+}
+
+#[tokio::main]
+async fn main() {
+  let addr = SocketAddr::from(([127, 0, 0, 1], 3030));
+
+  run_server(addr).await;
+}