feat: Implement basic RESTful API endpoints for user management (#1)

Cargo.toml

@@ -6,3 +6,6 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+rayon = "1.5"
+tokio = { version = "1", features = ["full"] }
+actix-web = "4"

src/day16_to_day18/mod.rs

@@ -0,0 +1,6 @@
+mod web_development;
+
+pub fn run() {
+    println!("Days 16-18: Web Development");
+    web_development::examples();
+}

src/day16_to_day18/web_development.rs

@@ -0,0 +1,46 @@
+use actix_web::{web, App, HttpResponse, HttpServer, Responder};
+use serde::{Deserialize, Serialize};
+
+// định nghĩa user
+#[derive(Serialize, Deserialize)]
+struct User {
+    id: u32,
+    name: String,
+}
+
+// hàm req GET để lấy danh sách user
+async fn get_users() -> impl Responder {
+    let users = vec![
+        User { id: 1, name: "Alice".to_string() },
+        User { id: 2, name: "Bob".to_string() },
+    ];
+    HttpResponse::Ok().json(users)
+}
+
+// hàm req GET để get thông tin một detail của user
+async fn get_user(path: web::Path<u32>) -> impl Responder {
+    let user_id = path.into_inner();
+    let user = User { id: user_id, name: format!("User {}", user_id) };
+    HttpResponse::Ok().json(user)
+}
+
+// hàm req POST để tạo user mới
+async fn create_user(user: web::Json<User>) -> impl Responder {
+    HttpResponse::Created().json(user.into_inner())
+}
+
+// server
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    println!("Khởi động máy chủ web tại http://127.0.0.1:8080");
+
+    HttpServer::new(|| {
+        App::new()
+            .route("/users", web::get().to(get_users))
+            .route("/users/{id}", web::get().to(get_user))
+            .route("/users", web::post().to(create_user))
+    })
+    .bind("127.0.0.1:8080")?
+    .run()
+    .await
+}

src/main.rs

@@ -10,14 +10,18 @@ pub mod day07_to_day09;
 //Day 10 to day 12
 pub mod day10_to_day12;
 
+//Day 13 to day 15
+pub mod day13_to_day15;
 
-mod day13_to_day15;
+//Day 16 to day 18
+pub mod day16_to_day18;
 
 fn main() {
     // day01_to_day03::run();
     // day04_to_day06::run();
     // day07_to_day09::run();
     // day10_to_day12::run();
-    day13_to_day15::run();
+    // day13_to_day15::run();
+    day16_to_day18::run();
 
 }