main.py

# Copyright 2016 Google Inc.
#
# 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.

# [START gae_urlfetch_requests]
import logging

from flask import Flask

# [START gae_urlfech_requests_imports]
import requests
import requests_toolbelt.adapters.appengine

# Use the App Engine Requests adapter.
# This makes sure that Requests uses URLFetch.
requests_toolbelt.adapters.appengine.monkeypatch()
# [END gae_urlfech_requests_imports]

app = Flask(__name__)


@app.route("/")
def index():
    # [START gae_urlfetch_requests_get]
    url = "http://www.google.com/humans.txt"
    response = requests.get(url)
    response.raise_for_status()
    return response.text
    # [END gae_urlfetch_requests_get]


@app.errorhandler(500)
def server_error(e):
    logging.exception("An error occurred during a request.")
    return (
        """
    An internal error occurred: <pre>{}</pre>
    See logs for full stacktrace.
    """.format(
            e
        ),
        500,
    )
# [END gae_urlfetch_requests]