docs/apache-airflow/empty_plugin/empty_plugin.py

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"""Plugins example"""
from __future__ import annotations

from flask import Blueprint
from flask_appbuilder import BaseView, expose

from airflow.plugins_manager import AirflowPlugin
from airflow.security import permissions
from airflow.www.auth import has_access


class EmptyPluginView(BaseView):
    """Creating a Flask-AppBuilder View"""

    default_view = "index"

    @expose("/")
    @has_access(
        [
            (permissions.ACTION_CAN_READ, permissions.RESOURCE_WEBSITE),
        ]
    )
    def index(self):
        """Create default view"""
        return self.render_template("empty_plugin/index.html", name="Empty Plugin")


# Creating a flask blueprint
bp = Blueprint(
    "Empty Plugin",
    __name__,
    template_folder="templates",
    static_folder="static",
    static_url_path="/static/empty_plugin",
)


class EmptyPlugin(AirflowPlugin):
    """Defining the plugin class"""

    name = "Empty Plugin"
    flask_blueprints = [bp]
    appbuilder_views = [{"name": "Empty Plugin", "category": "Extra Views", "view": EmptyPluginView()}]