Introduce actix web template

Signed-off-by: jinhai <haijin.chn@gmail.com>

Cargo.toml

@@ -6,5 +6,9 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-actix = "0.13.1"
+actix-web = "4.3.1"
+actix-rt = "2.8.0"
 postgres = "0.19.7"
+
+[[bin]]
+name = "doc_gpt"

src/main.rs

@@ -1,3 +1,19 @@
-fn main() {
-    println!("Hello, world!");
+use actix_web::{get, web, App, HttpServer, Responder};
+
+#[get("/")]
+async fn index() -> impl Responder {
+    "Hello, World!"
+}
+
+#[get("/{name}")]
+async fn hello(name: web::Path<String>) -> impl Responder {
+    format!("Hello {}!", &name)
+}
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    HttpServer::new(|| App::new().service(index).service(hello))
+        .bind(("127.0.0.1", 9090))?
+        .run()
+        .await
 }