Classe « Flask »

Méthode flask.Flask.preprocess_request

Signature de la méthode preprocess_request

def preprocess_request(self) -> Union[ForwardRef('Response'), ~AnyStr, Dict[str, Any], Generator[~AnyStr, NoneType, NoneType], Tuple[Union[ForwardRef('Response'), ~AnyStr, Dict[str, Any], Generator[~AnyStr, NoneType, NoneType]], Union[ForwardRef('Headers'), Dict[str, Union[str, List[str], Tuple[str, ...]]], List[Tuple[str, Union[str, List[str], Tuple[str, ...]]]]]], Tuple[Union[ForwardRef('Response'), ~AnyStr, Dict[str, Any], Generator[~AnyStr, NoneType, NoneType]], int], Tuple[Union[ForwardRef('Response'), ~AnyStr, Dict[str, Any], Generator[~AnyStr, NoneType, NoneType]], int, Union[ForwardRef('Headers'), Dict[str, Union[str, List[str], Tuple[str, ...]]], List[Tuple[str, Union[str, List[str], Tuple[str, ...]]]]]], ForwardRef('WSGIApplication'), NoneType] 

Description

preprocess_request.__doc__

Called before the request is dispatched. Calls
        :attr:`url_value_preprocessors` registered with the app and the
        current blueprint (if any). Then calls :attr:`before_request_funcs`
        registered with the app and the blueprint.

        If any :meth:`before_request` handler returns a non-None value, the
        value is handled as if it was the return value from the view, and
        further request handling is stopped.