# Source code for flask_dance.contrib.meetup

    from flask import g
    from werkzeug.local import LocalProxy

    from flask_dance.consumer import OAuth2ConsumerBlueprint

    __maintainer__ = "David Baumgold <david@davidbaumgold.com>"

    def make_meetup_blueprint(
        key=None,
        secret=None,
        *,
        scope=None,
        redirect_url=None,
        redirect_to=None,
        login_url=None,
        authorized_url=None,
        session_class=None,
        storage=None,
        rule_kwargs=None,
    ):
        """
        Make a blueprint for authenticating with Meetup using OAuth 2. This requires
        an OAuth consumer from Meetup. You should either pass the key and secret to
        this constructor, or make sure that your Flask application config defines
        them, using the variables :envvar:`MEETUP_OAUTH_CLIENT_ID` and
        :envvar:`MEETUP_OAUTH_CLIENT_SECRET`.

        Args:
            key (str): The OAuth consumer key for your application on Meetup
            secret (str): The OAuth consumer secret for your application on Meetup
            scope (str, optional): comma-separated list of scopes for the OAuth token
            redirect_url (str): the URL to redirect to after the authentication
                dance is complete
            redirect_to (str): if ``redirect_url`` is not defined, the name of the
                view to redirect to after the authentication dance is complete.
                The actual URL will be determined by :func:`flask.url_for`
            login_url (str, optional): the URL path for the ``login`` view.
                Defaults to ``/meetup``
            authorized_url (str, optional): the URL path for the ``authorized`` view.
                Defaults to ``/meetup/authorized``.
            session_class (class, optional): The class to use for creating a
                Requests session. Defaults to
                :class:`~flask_dance.consumer.requests.OAuth2Session`.
            storage: A token storage class, or an instance of a token storage
                    class, to use for this blueprint. Defaults to
                    :class:`~flask_dance.consumer.storage.session.SessionStorage`.
            rule_kwargs (dict, optional): Additional arguments that should be passed when adding
                the login and authorized routes. Defaults to ``None``.

        :rtype: :class:`~flask_dance.consumer.OAuth2ConsumerBlueprint`
        :returns: A :doc:`blueprint <flask:blueprints>` to attach to your Flask app.
        """
        scope = scope or ["basic"]
        meetup_bp = OAuth2ConsumerBlueprint(
            "meetup",
            __name__,
            client_id=key,
            client_secret=secret,
            scope=scope,
            base_url="https://api.meetup.com/2/",
            authorization_url="https://secure.meetup.com/oauth2/authorize",
            token_url="https://secure.meetup.com/oauth2/access",
            token_url_params={"include_client_id": True},
            redirect_url=redirect_url,
            redirect_to=redirect_to,
            login_url=login_url,
            authorized_url=authorized_url,
            session_class=session_class,
            storage=storage,
            rule_kwargs=rule_kwargs,
        )
        meetup_bp.from_config["client_id"] = "MEETUP_OAUTH_CLIENT_ID"
        meetup_bp.from_config["client_secret"] = "MEETUP_OAUTH_CLIENT_SECRET"

        @meetup_bp.before_app_request
        def set_applocal_session():
            g.flask_dance_meetup = meetup_bp.session

        return meetup_bp

    meetup = LocalProxy(lambda: g.flask_dance_meetup)