Actix

use actix_web::{web, App, HttpServer, HttpResponse, Responder};
use serde::{Deserialize, Serialize};

// 1. JSON 요청/응답을 위한 구조체 정의
#[derive(Deserialize)]
struct CreateUser {
    name: String,
    email: String,
}

#[derive(Serialize)]
struct User {
    id: u64,
    name: String,
    email: String,
}

// 2. 핸들러 함수 정의
async fn hello() -> impl Responder {
    HttpResponse::Ok().body("안녕하세요! Actix-web입니다.")
}

async fn create_user(user: web::Json<CreateUser>) -> impl Responder {
    let new_user = User {
        id: 1,
        name: user.name.clone(),
        email: user.email.clone(),
    };
    HttpResponse::Created().json(new_user)
}

async fn get_user(path: web::Path<u64>) -> impl Responder {
    let user_id = path.into_inner();
    let user = User {
        id: user_id,
        name: "홍길동".to_string(),
        email: "hong@example.com".to_string(),
    };
    HttpResponse::Ok().json(user)
}

// 3. 서버 시작
#[actix_web::main]
async fn main() -> std::io::Result<()> {
    println!("서버 시작: http://127.0.0.1:8080");

    HttpServer::new(|| {
        App::new()
            .route("/", web::get().to(hello))
            .route("/users", web::post().to(create_user))
            .route("/users/{id}", web::get().to(get_user))
    })
    .bind("127.0.0.1:8080")?
    .run()
    .await
}