app-dev/python-frameworks-cloudrun/tornado-native/app.py

#!/usr/bin/env python
#
# Copyright 2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os

import tornado.ioloop
import tornado.web

port = os.environ.get("PORT", 8080)


class MainHandler(tornado.web.RequestHandler):
    def get(self):
        self.write("👋 Hello tornado")


def make_app():
    return tornado.web.Application(
        [
            (r"/", MainHandler),
        ]
    )


if __name__ == "__main__":
    app = make_app()
    app.listen(port)
    tornado.ioloop.IOLoop.current().start()