App with 2 listeners do not respond

[HosMercury]

Summary

This is main.rs
with 2 separate routes

    let listener = tokio::net::TcpListener::bind("0.0.0.0:3000").await.unwrap();
    axum::serve(listener, app).await.unwrap();

    let listener2 = tokio::net::TcpListener::bind("0.0.0.0:4000").await.unwrap();
    axum::serve(listener2, api_app).await.unwrap();

This router does not respond

  let api_app = Router::new()
      .nest("/api", api::main::router())
      .layer(session_layer.clone())
      .with_state(state.clone());

On port 4000

    pub fn router() -> Router<AppState> {
    Router::new()
        .route("/", get(self::get::main))
        .route("/test", get(self::get::test))
}

    #[axum::debug_handler]
    pub async fn test() -> &'static str {
        "hello Api"
    }

No errs but server not respond

axum version

0.7.4

[jplatte]

The await on axum::serve never returns except in the case of shutdown. You need to spawn separate async tasks (see tokio::spawn) for serving both routers concurrently.

[HosMercury]

Ty