pub fn create_app(
app_state: Data<AppState>,
) -> App<impl ServiceFactory<ServiceRequest, Config = (), Response = ServiceResponse<impl MessageBody<Error = impl Display + Debug>>, Error = Error, InitError = ()>>
pub fn create_app(
app_state: Data<AppState>,
) -> App<impl ServiceFactory<ServiceRequest, Config = (), Response = ServiceResponse<impl MessageBody<Error = impl Display + Debug>>, Error = Error, InitError = ()>>