python - Heroku 上的 Flask 应用程序无法检测到另一个文件进行身份验证

Question

我正在尝试为使用 Google Calendar API 设置约会的 Dialogflow 创建一个 webhook。因此 webhook 应该从 DialogFlow 获取 JSON 请求，放入 Google API 所需的格式并调用 Google API。我为此使用了服务器到服务器的身份验证。

我的问题是我不断收到错误 500（“webhook 调用失败”）。从错误日志看来，它找不到包含身份验证密钥的 JSON 文件。我不明白为什么，因为它位于包含 webhook 的同一个 Github 存储库中（它称为 g_calendar2.py）。插入到 python 文件中的路径是我在 Github 上打开 JSON 并单击“复制路径”时得到的路径。不过，当我在本地运行它时，身份验证很好。

有人知道吗？谢谢！

g_calendar2.py

from google.oauth2 import service_account
import googleapiclient.discovery
import datetime
from httplib2 import Http
from oauth2client import file, client, tools
from flask import Flask, request, abort, make_response
import json 
import re 
import os


app=Flask(__name__)

@app.route('/webhook', methods=['POST'])

def webhook():

    req = request.get_json(silent=True, force=True)

    print(json.dumps(req, indent=4))

    res = processRequest(req)

    res = json.dumps(res, indent=4)

    r = make_response(res)

    r.headers['Content-Type'] = 'application/json'

    return r

def processRequest(req):

    info=req.get("queryResult").get("parameters")

    datetime=info.get("date-time")

    data=datetime

    def getEmails(str):

        email_address=info.get("email")

        str = str(email_address)

        regex = r'([\w0-9._-]+@[\w0-9._-]+\.[\w0-9_-]+)'

        return re.findall(regex, str, re.M|re.I)

    emails=getEmails(str)


    SCOPES = ['https://www.googleapis.com/auth/calendar']

    SERVICE_ACCOUNT_FILE = '**Reponamedummy**/**filenamedummy**.json'

    credentials = service_account.Credentials.from_service_account_file(SERVICE_ACCOUNT_FILE, scopes=SCOPES)

    service = googleapiclient.discovery.build('calendar', 'v3', credentials=credentials)

    event = {
        'start': {
        'dateTime': data,
        'timeZone': 'Asia/Kuala_Lumpur',
        },
        'end': {
        'dateTime': '2018-09-06T14:10:14+08:00',
        'timeZone': 'Asia/Kuala_Lumpur',
        },
        'attendees': 
         [{'email': str(emails[0])}]
        }
    response = service.events().insert(calendarId='[e-mail]', body=event).execute()
return 'Event has been created.'


if __name__ == '__main__':

    port = int(os.getenv('PORT', 5000))

    print("Starting app on port %d" % port)

    app.run(debug=False, port=port, host='0.0.0.0')

错误日志

    2018-08-31T08:20:19.704681+00:00 heroku[web.1]: State changed from starting to up

    2018-08-31T08:21:04.742356+00:00 app[web.1]: {

    2018-08-31T08:21:04.742402+00:00 app[web.1]:     "responseId": "bd0ed761-466a-463a-b01f-41d664e4e5bf",

    2018-08-31T08:21:04.742404+00:00 app[web.1]:     "queryResult": {

    2018-08-31T08:21:04.742408+00:00 app[web.1]:         "queryText": "Slot for the 3rd of September, 3 p.m. [e-mail]",

    2018-08-31T08:21:04.742409+00:00 app[web.1]:         "parameters": {

    2018-08-31T08:21:04.742411+00:00 app[web.1]:             "email": "[e-mail]",

    2018-08-31T08:21:04.742413+00:00 app[web.1]:             "date": "",

    2018-08-31T08:21:04.742414+00:00 app[web.1]:             "date-time":          "2018-09-03T12:00:00+08:00"

    2018-08-31T08:21:04.742415+00:00 app[web.1]:         },

    2018-08-31T08:21:04.742417+00:00 app[web.1]:         "allRequiredParamsPresent": true,

    2018-08-31T08:21:04.742419+00:00 app[web.1]:         "fulfillmentText": "Alright, you want to book for this date and time?",

    2018-08-31T08:21:04.742420+00:00 app[web.1]:         "fulfillmentMessages": [

    2018-08-31T08:21:04.742421+00:00 app[web.1]:             {

    2018-08-31T08:21:04.742423+00:00 app[web.1]:                 "text": {

    2018-08-31T08:21:04.742424+00:00 app[web.1]:                     "text": [

    2018-08-31T08:21:04.742425+00:00 app[web.1]:                         "Alright, you want to book for this date and time?"

    2018-08-31T08:21:04.742426+00:00 app[web.1]:                     ]

    2018-08-31T08:21:04.742427+00:00 app[web.1]:                 }

    2018-08-31T08:21:04.742429+00:00 app[web.1]:             }

    2018-08-31T08:21:04.742430+00:00 app[web.1]:         ],

    2018-08-31T08:21:04.742431+00:00 app[web.1]:         "intent": {

    2018-08-31T08:21:04.742437+00:00 app[web.1]:             "name": "projects/linibot-9070f/agent/intents/5cb9cdd4-502c-4306-86a8-73e03e263d8f",

    2018-08-31T08:21:04.742438+00:00 app[web.1]:             "displayName": "Appointment Booking"

    2018-08-31T08:21:04.742439+00:00 app[web.1]:         },

    2018-08-31T08:21:04.742441+00:00 app[web.1]:         "intentDetectionConfidence": 1.0,

    2018-08-31T08:21:04.742442+00:00 app[web.1]:         "languageCode": "en"

    2018-08-31T08:21:04.742443+00:00 app[web.1]:     },

    2018-08-31T08:21:04.742444+00:00 app[web.1]:     "originalDetectIntentRequest": {

    2018-08-31T08:21:04.742445+00:00 app[web.1]:         "payload": {}

    2018-08-31T08:21:04.742446+00:00 app[web.1]:     },

    2018-08-31T08:21:04.742448+00:00 app[web.1]:     "session": "projects/linibot-9070f/agent/sessions/483fa518-f3ee-e3e3-805d-35187044d201"

    2018-08-31T08:21:04.742449+00:00 app[web.1]: }

    2018-08-31T08:21:04.744563+00:00 app[web.1]: [2018-08-31 08:21:04,742] ERROR in app: Exception on /webhook [POST]

    2018-08-31T08:21:04.744566+00:00 app[web.1]: Traceback (most recent call last):

    2018-08-31T08:21:04.744567+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.7/site-packages/flask/app.py", line 2292, in wsgi_app

    2018-08-31T08:21:04.744568+00:00 app[web.1]:     response = self.full_dispatch_request()

    2018-08-31T08:21:04.744570+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.7/site-packages/flask/app.py", line 1815, in full_dispatch_request

    2018-08-31T08:21:04.744571+00:00 app[web.1]:     rv = self.handle_user_exception(e)

    2018-08-31T08:21:04.744572+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.7/site-packages/flask/app.py", line 1718, in handle_user_exception

    2018-08-31T08:21:04.744573+00:00 app[web.1]:     reraise(exc_type, exc_value, tb)

    2018-08-31T08:21:04.744575+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.7/site-packages/flask/_compat.py", line 35, in reraise

    2018-08-31T08:21:04.744576+00:00 app[web.1]:     raise value

    2018-08-31T08:21:04.744577+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.7/site-packages/flask/app.py", line 1813, in full_dispatch_request

    2018-08-31T08:21:04.744579+00:00 app[web.1]:     rv = self.dispatch_request()

    2018-08-31T08:21:04.744580+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.7/site-packages/flask/app.py", line 1799, in dispatch_request

    2018-08-31T08:21:04.744581+00:00 app[web.1]:     return self.view_functions[rule.endpoint](**req.view_args)

    2018-08-31T08:21:04.744582+00:00 app[web.1]:   File "/app/g_calendar2.py", line 22, in webhook

    2018-08-31T08:21:04.744584+00:00 app[web.1]:     res = processRequest(req)

    2018-08-31T08:21:04.744585+00:00 app[web.1]:   File "/app/g_calendar2.py", line 57, in processRequest

    2018-08-31T08:21:04.744586+00:00 app[web.1]:     credentials = service_account.Credentials.from_service_account_file(SERVICE_ACCOUNT_FILE, scopes=SCOPES)

    2018-08-31T08:21:04.744590+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.7/site-packages/google/oauth2/service_account.py", line 209, in from_service_account_file

    2018-08-31T08:21:04.744591+00:00 app[web.1]:     filename, require=['client_email', 'token_uri'])

    2018-08-31T08:21:04.744597+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.7/site-packages/google/auth/_service_account_info.py", line 71, in from_filename

    2018-08-31T08:21:04.744599+00:00 app[web.1]:     with io.open(filename, 'r', encoding='utf-8') as json_file:

    2018-08-31T08:21:04.744605+00:00 app[web.1]: FileNotFoundError: [Errno 2] No such file or directory: '**Reponamedummy**/**filenamedummy**.json'

    2018-08-31T08:21:04.745327+00:00 app[web.1]: 10.103.217.221 - - [31/Aug/2018:08:21:04 +0000] "POST /webhook HTTP/1.1" 500 291 "-" "Apache-HttpClient/4.5.4 (Java/1.8.0_181)"

    2018-08-31T08:21:04.743647+00:00 heroku[router]: at=info method=POST path="/webhook" host=saloon-bot2.herokuapp.com request_id=676b00bc-5840-4c39-a5c2-b29ea62980bb fwd="35.193.216.215" dyno=web.1 connect=0ms service=4ms status=500 bytes=456 protocol=https

标签： pythonherokugoogle-apigoogle-oauthdialogflow-es