How to use flask app context when using decorators

@article_manager.route('/', '/')
class GetArticle(Resource):

    @auth_token_required
    def get(self, title=None, id=None):
        pass

@article_manager.route('/', '/')
class GetArticle(Resource):

    @auth_required("token")
    def get(self, title=None, id=None):
        pass