1 files changed, 75 insertions, 0 deletions
diff --git a/third_party/rust/h2/examples/akamai.rs b/third_party/rust/h2/examples/akamai.rs
new file mode 100644
index 0000000000..29d8a93474
--- /dev/null
+++ b/third_party/rust/h2/examples/akamai.rs
@@ -0,0 +1,75 @@
+use h2::client;
+use http::{Method, Request};
+use tokio::net::TcpStream;
+use tokio_rustls::TlsConnector;
+
+use rustls::Session;
+use webpki::DNSNameRef;
+
+use std::error::Error;
+use std::net::ToSocketAddrs;
+
+const ALPN_H2: &str = "h2";
+
+#[tokio::main]
+pub async fn main() -> Result<(), Box<dyn Error>> {
+    let _ = env_logger::try_init();
+
+    let tls_client_config = std::sync::Arc::new({
+        let mut c = rustls::ClientConfig::new();
+        c.root_store
+            .add_server_trust_anchors(&webpki_roots::TLS_SERVER_ROOTS);
+        c.alpn_protocols.push(ALPN_H2.as_bytes().to_owned());
+        c
+    });
+
+    // Sync DNS resolution.
+    let addr = "http2.akamai.com:443"
+        .to_socket_addrs()
+        .unwrap()
+        .next()
+        .unwrap();
+
+    println!("ADDR: {:?}", addr);
+
+    let tcp = TcpStream::connect(&addr).await?;
+    let dns_name = DNSNameRef::try_from_ascii_str("http2.akamai.com").unwrap();
+    let connector = TlsConnector::from(tls_client_config);
+    let res = connector.connect(dns_name, tcp).await;
+    let tls = res.unwrap();
+    {
+        let (_, session) = tls.get_ref();
+        let negotiated_protocol = session.get_alpn_protocol();
+        assert_eq!(
+            Some(ALPN_H2.as_bytes()),
+            negotiated_protocol.as_ref().map(|x| &**x)
+        );
+    }
+
+    println!("Starting client handshake");
+    let (mut client, h2) = client::handshake(tls).await?;
+
+    println!("building request");
+    let request = Request::builder()
+        .method(Method::GET)
+        .uri("https://http2.akamai.com/")
+        .body(())
+        .unwrap();
+
+    println!("sending request");
+    let (response, other) = client.send_request(request, true).unwrap();
+
+    tokio::spawn(async move {
+        if let Err(e) = h2.await {
+            println!("GOT ERR={:?}", e);
+        }
+    });
+
+    println!("waiting on response : {:?}", other);
+    let (_, mut body) = response.await?.into_parts();
+    println!("processing body");
+    while let Some(chunk) = body.data().await {
+        println!("RX: {:?}", chunk?);
+    }
+    Ok(())
+}