How do I bind middleware to ONLY the `default_service`?

[curiousdev]

The web::resource provides wrap_fn ability to bind middleware to a specific route.

What method should be used to bind middlware to ONLY app.default_service()?

[tmbobbins]

You can use Resource within default_service() see here.

App::new()
    .wrap(Logger::default())
    .default_service(
        web::resource("/404")
            .wrap_fn(|req, srv| {
                println!("Hi from start. You requested: {}", req.path());
                srv.call(req).map(|res| {
                    println!("Hi from response");
                    res
                })
            })
            .to(HttpResponse::NotFound)
    )