README.md

ActiX で Hello World

Cargo.toml

[package]
name = "actix-project"
version = "0.1.0"
edition = "2024"

[dependencies]
actix-web = "4"

src/main.rs

use actix_web::{get, App, HttpResponse, HttpServer, Responder};

#[get("/")]
async fn hello() -> impl Responder {
    HttpResponse::Ok().body("Hello World!")
}

#[actix_web::main]
async fn main() -> std::io::Result<()> {
    println!("Server running at http://127.0.0.1:8080");

    HttpServer::new(|| {
        App::new()
            .service(hello)
    })
    .bind(("127.0.0.1", 8080))?
    .run()
    .await
}