使用 python 在 Google Appengine 上成功部署应用程序后 Web url 出错

Question

我正在尝试设置 google appengine 以读取来自 pubsub 的通知。成功部署应用程序后，它在 https://.appspot.com :

上给我错误

An internal server error occured:
name 'request' is not defined

Main.py 包含以下代码：

import logging
from flask import Flask
import os
import requests
app = Flask(__name__)

@app.route('/pubsub/push', methods=['POST'])
def pubsub_push():
    if (request.args.get('token', '') !=
            current_app.config['PUBSUB_VERIFICATION_TOKEN']):
        return 'Invalid request', 400

    envelope = json.loads(request.data.decode('utf-8'))
    payload = base64.b64decode(envelope['message']['data'])

    MESSAGES.append(payload)

    # Returning any 2xx status indicates successful receipt of the message.
    return 'OK', 200


@app.route('/', methods=['GET', 'POST'])
def index():
    if request.method == 'GET':
        return render_template('index.html', messages=MESSAGES)

    data = request.form.get('payload', 'Example payload').encode('utf-8')

    publisher = pubsub_v1.PublisherClient()
    topic_path = publisher.topic_path(
        current_app.config['PROJECT'],
        current_app.config['PUBSUB_TOPIC'])

    publisher.publish(topic_path, data=data)

    return 'OK', 200


@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


if __name__ == '__main__' :
     app.run(host='127.0.0.1',port=8080,debug=True)

非常感谢对此问题的任何帮助。

Answer 1

来自Accessing Request Data：

For web applications it’s crucial to react to the data a client sends to the server. In Flask this information is provided by the global request object.

您缺少 request 导入，您需要添加它：

from flask import request

使用 python 在 Google Appengine 上成功部署应用程序后 Web url 出错

Error on web url after successful app deployment on Google Appengine with python

python

google-app-engine

google-cloud-pubsub