Method before_request

dash/backends/_flask.py:158–160

(self, func: Callable[[], Any])

        )

    def before_request(self, func: Callable[[], Any]):
        # Flask expects a callable; user responsibility not to pass None
        self.server.before_request(func)

    def after_request(self, func: Callable[[Any], Any]):
        # Flask after_request expects a function(response) -> response