add actix example

Cargo.toml

@@ -5,4 +5,5 @@ edition = "2024"
 
 [dependencies]
 actix = "0.13"
-tokio = { version = "1.44", features = ["full"] }
+actix-web = "4.10"
+#tokio = { version = "1.44", features = ["full"] } maybe

src/main.rs

@@ -1,5 +1,28 @@
-#[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    println!("Hello, world!");
-    Ok(())
+use actix_web::{get, post, web, App, HttpResponse, HttpServer, Responder};
+
+#[get("/")]
+async fn hello() -> impl Responder {
+    HttpResponse::Ok().body("Hello world!")
+}
+
+#[post("/echo")]
+async fn echo(req_body: String) -> impl Responder {
+    HttpResponse::Ok().body(req_body)
+}
+
+async fn manual_hello() -> impl Responder {
+    HttpResponse::Ok().body("Hey there!")
+}
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    HttpServer::new(|| {
+        App::new()
+            .service(hello)
+            .service(echo)
+            .route("/hey", web::get().to(manual_hello))
+    })
+    .bind(("127.0.0.1", 8080))?
+    .run()
+    .await
 }