// <urlencoded>
use actix_web::{post, web, HttpResponse};
use serde::Deserialize;

#[derive(Deserialize)]
struct FormData {
    username: String,
}

#[post("/")]
async fn index(form: web::Form<FormData>) -> HttpResponse {
    HttpResponse::Ok().body(format!("username: {}", form.username))
}
// </urlencoded>

#[actix_web::main]
async fn main() -> std::io::Result<()> {
    use actix_web::{App, HttpServer};

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