Update http2

Author: JohnTitor

content/docs/http2.md

@@ -13,11 +13,11 @@ weight: 250
 > Currently, only `rust-openssl` has support.
 
 `alpn` negotiation requires enabling the feature. When enabled, `HttpServer` provides the
-[bind_ssl][bindssl] method.
+[bind_openssl][bindopenssl] method.
 
 ```toml
 [dependencies]
-actix-web = { version = "{{< actix-version "actix-web" >}}", features = ["ssl"] }
+actix-web = { version = "{{< actix-version "actix-web" >}}", features = ["openssl"] }
 openssl = { version = "0.10", features = ["v110"] }
 ```
 {{< include-example example="http2" file="main.rs" section="main" >}}
@@ -30,6 +30,6 @@ connection and tls connection. [rfc section 3.4][rfcsection34].
 
 [rfcsection32]: https://http2.github.io/http2-spec/#rfc.section.3.2
 [rfcsection34]: https://http2.github.io/http2-spec/#rfc.section.3.4
-[bindssl]: https://docs.rs/actix-web/1.0.2/actix_web/struct.HttpServer.html#method.bind_ssl
+[bindopenssl]: https://docs.rs/actix-web/2/actix_web/struct.HttpServer.html#method.bind_openssl
 [tlsalpn]: https://tools.ietf.org/html/rfc7301
 [examples]: https://github.com/actix/examples/tree/master/tls

examples/http2/Cargo.toml

@@ -4,5 +4,6 @@ version = "1.0.0"
 edition = "2018"
 
 [dependencies]
-actix-web = { version = "1.0", features = ["ssl"] }
+actix-web = { version = "2.0", features = ["openssl"] }
+actix-rt = "1.0"
 openssl = { version = "0.10", features = ["v110"] }

examples/http2/src/main.rs

@@ -2,11 +2,12 @@
 use actix_web::{web, App, HttpRequest, HttpServer, Responder};
 use openssl::ssl::{SslAcceptor, SslFiletype, SslMethod};
 
-fn index(_req: HttpRequest) -> impl Responder {
+async fn index(_req: HttpRequest) -> impl Responder {
     "Hello."
 }
 
-fn main() {
+#[actix_rt::main]
+async fn main() -> std::io::Result<()> {
     // load ssl keys
     // to create a self-signed temporary cert for testing:
     // `openssl req -x509 -newkey rsa:4096 -nodes -keyout key.pem -out cert.pem -days 365 -subj '/CN=localhost'`
@@ -17,9 +18,8 @@ fn main() {
     builder.set_certificate_chain_file("cert.pem").unwrap();
 
     HttpServer::new(|| App::new().route("/", web::get().to(index)))
-        .bind_ssl("127.0.0.1:8088", builder)
-        .unwrap()
+        .bind_openssl("127.0.0.1:8088", builder)?
         .run()
-        .unwrap();
+        .await
 }
 // </main>