Merge pull request #772 from kant003/f4

f4 Rust app

main.rs

@@ -0,0 +1,50 @@
+use actix_web::{web, App, HttpResponse, HttpServer, Responder};
+use std::sync::Mutex;
+
+struct AppState {
+    tasks: Mutex<Vec<String>>,
+}
+
+async fn index(data: web::Data<AppState>) -> impl Responder {
+    let tasks = data.tasks.lock().unwrap();
+    let mut response_html = String::from("<h1>Lista de Tareas</h1><ul>");
+
+    for task in tasks.iter() {
+        response_html.push_str(&format!("<li>{}</li>", task));
+    }
+
+    if tasks.is_empty() {
+        response_html.push_str("<li>No hay tareas pendientes.</li>");
+    }
+
+    response_html.push_str("</ul>
+        <form action=\"/add\" method=\"POST\">
+            <input type=\"text\" name=\"task\" placeholder=\"Nueva tarea\" required>
+            <button type=\"submit\">Agregar Tarea</button>
+        </form>");
+
+    HttpResponse::Ok().body(response_html)
+}
+
+async fn add_task(data: web::Data<AppState>, form: web::Form<String>) -> impl Responder {
+    let mut tasks = data.tasks.lock().unwrap();
+    tasks.push(form.into_inner());
+    HttpResponse::SeeOther().header("Location", "/").finish()
+}
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    let app_data = web::Data::new(AppState {
+        tasks: Mutex::new(Vec::new()),
+    });
+
+    HttpServer::new(move || {
+        App::new()
+            .app_data(app_data.clone())
+            .route("/", web::get().to(index))
+            .route("/add", web::post().to(add_task))
+    })
+    .bind("127.0.0.1:8080")?
+    .run()
+    .await
+}