main.py

# Copyright 2018 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.

# [START gae_python37_app]
from flask import Flask, render_template

import logging
import jinja2
import os
import urllib.request

# If `entrypoint` is not defined in app.yaml, App Engine will look for an app
# called `app` in `main.py`.
app = Flask(__name__)
app.jinja_loader = jinja2.FileSystemLoader('app/dist')


@app.route('/hello')
def hello():
    """Return a friendly HTTP greeting."""
    return 'Hello World!'

@app.route('/', defaults={'path': ''})
@app.route('/<path:path>')
def vue_client(path):
    logging.info(path)
    if os.getenv('GAE_ENV', '').startswith('standard'):
        return render_template('index.html')
    else:
        url = 'http://localhost:3000/{0}'.format(path)
        logging.error(url)
        return urllib.request.urlopen(url).read()


@app.errorhandler(500)
def server_error(e):
    logging.exception('An error occurred during a request.')
    return 'An internal error occurred.', 500


if __name__ == '__main__':
    # This is used when running locally only. When deploying to Google App
    # Engine, a webserver process such as Gunicorn will serve the app. This
    # can be configured by adding an `entrypoint` to app.yaml.
    app.run(host='127.0.0.1', port=8080, debug=True)
# [END gae_python37_app]