refactor layout

examples/echo.rs

@@ -0,0 +1,42 @@
+use std::{env, io};
+
+use actix_http::{Error, HttpService, Request, Response};
+use actix_server::Server;
+use bytes::BytesMut;
+use futures::StreamExt;
+use http::header::HeaderValue;
+use log::info;
+
+#[actix_rt::main]
+async fn main() -> io::Result<()> {
+    env::set_var("RUST_LOG", "echo=info");
+    env_logger::init();
+
+    Server::build()
+        .bind("echo", "127.0.0.1:8080", || {
+            HttpService::build()
+                .client_timeout(1000)
+                .client_disconnect(1000)
+                .finish(|mut req: Request| {
+                    async move {
+                        let mut body = BytesMut::new();
+                        while let Some(item) = req.payload().next().await {
+                            body.extend_from_slice(&item?);
+                        }
+
+                        info!("request body: {:?}", body);
+                        Ok::<_, Error>(
+                            Response::Ok()
+                                .header(
+                                    "x-head",
+                                    HeaderValue::from_static("dummy value!"),
+                                )
+                                .body(body),
+                        )
+                    }
+                })
+                .tcp()
+        })?
+        .run()
+        .await
+}