Function default_fallback

pub async fn default_fallback(allowed_methods: &AllowedMethods) -> Response

The default fallback handler for incoming requests that don’t match any of the routes you registered.

It returns a 404 Not Found response if the path doesn’t match any of the registered route paths.
It returns a 405 Method Not Allowed response if the path matches a registered route path but the method doesn’t match any of its associated handlers.

It also returns a 404 Not Found response if the path allows all HTTP methods, including custom ones.