无法使用OAuth2为AdWords账户生成刷新令牌

Question

我在用Python生成AdWords API的刷新令牌时遇到了一些麻烦，需要一些帮助。以下是我的情况：

我有一个AdWords客户，我想通过AdWords API为他们拉取报告（我们现在有开发者令牌了）。假设在AdWords中，客户的账户是521-314-0974（这是我随便编的）。我在这里有点困惑：

下面是我正在尝试让它工作的生成刷新令牌的代码片段：

"""Generates a refresh token for use with AdWords."""

__author__ = 'Nathaniel Payne'

import sys
import urllib2

from oauthlib import oauth2

# Your OAuth 2.0 Client ID and Secret. If you do not have an ID and Secret yet,
# please go to https://console.developers.google.com and create a set.
CLIENT_ID = 'INSERT_CLIENT_ID_HERE'
CLIENT_SECRET = 'INSERT_CLIENT_SECRET_HERE'

# You may optionally provide an HTTPS proxy.
HTTPS_PROXY = None

# The AdWords API OAuth 2.0 scope.
SCOPE = u'https://adwords.google.com/api/adwords'
# This callback URL will allow you to copy the token from the success screen.
CALLBACK_URL = 'urn:ietf:wg:oauth:2.0:oob'
# The HTTP headers needed on OAuth 2.0 refresh requests.
OAUTH2_REFRESH_HEADERS = {'content-type':
                          'application/x-www-form-urlencoded'}
# The web address for generating new OAuth 2.0 credentials at Google.
GOOGLE_OAUTH2_AUTH_ENDPOINT = 'https://accounts.google.com/o/oauth2/auth'
GOOGLE_OAUTH2_GEN_ENDPOINT = 'https://accounts.google.com/o/oauth2/token'


def main():
  oauthlib_client = oauth2.WebApplicationClient(CLIENT_ID)

  authorize_url = oauthlib_client.prepare_request_uri(
      GOOGLE_OAUTH2_AUTH_ENDPOINT, redirect_uri=CALLBACK_URL, scope=SCOPE)
  print ('Log in to your AdWords account and open the following URL: \n%s\n' %
         authorize_url)
  print 'After approving the token enter the verification code (if specified).'
  code = raw_input('Code: ').strip()

  post_body = oauthlib_client.prepare_request_body(
      client_secret=CLIENT_SECRET, code=code, redirect_uri=CALLBACK_URL)
  if sys.version_info[0] == 3:
    post_body = bytes(post_body, 'utf8')
  request = urllib2.Request(GOOGLE_OAUTH2_GEN_ENDPOINT, post_body,
                            OAUTH2_REFRESH_HEADERS)
  if HTTPS_PROXY:
    request.set_proxy(HTTPS_PROXY, 'https')
  raw_response = urllib2.urlopen(request).read().decode()
  oauth2_credentials = oauthlib_client.parse_request_body_response(raw_response)

  print ('Your access token is %s and your refresh token is %s'
         % (oauth2_credentials['access_token'],
            oauth2_credentials['refresh_token']))
  print ('You can cache these credentials into a yaml file with the '
         'following keys:\nadwords:\n  client_id: %s\n  client_secret: %s\n'
         '  refresh_token: %s\n'
         % (CLIENT_ID, CLIENT_SECRET, oauth2_credentials['refresh_token']))


if __name__ == '__main__':
  main()

我有几个问题：

我是否需要为每个AdWords客户在console.developers.google.com上设置一个特别的项目，以便从AdWords报告API中拉取数据？还是说，我只需要提供一个通用账户的客户端密钥和ID就可以了？
接着，能不能有人确认一下在下面的Python代码块中，client_ID和Client_Secret应该填什么？我的意思是，我之前使用的是来自https://console.developers.google.com的客户端ID和客户端密钥……这是我们已经设置了账单的分析账户（我之前也用过BigQuery API）。这样做对吗？我不太明白这和这个客户的AdWords账户是怎么关联的。
在同意屏幕中，我填了我自己的邮箱，因为我是这个项目的拥有者。不过，当我运行代码时，我得到了一个需要运行的URL链接来生成代码。但是，当我运行这个代码片段时：
```
print ('Log in to your AdWords account and open the following URL: \n%s\n' %
             authorize_url)
      print 'After approving the token enter the verification code (if specified).'
      code = raw_input('Code: ').strip()
```
我收到了一个错误。这是我收到的错误信息：
```
Error: redirect_uri_mismatch
The redirect URI in the request: urn:ietf:wg:oauth:2.0:oob did not match a registered redirect URI

Learn more
    Request Details
    cookie_policy_enforce=false
    scope=https://adwords.google.com/api/adwords
    response_type=code
    access_type=online
    redirect_uri=urn:ietf:wg:oauth:2.0:oob
    display=page
    client_id=XXXXXXXXX.apps.googleusercontent.com
```
我对此感到困惑。有些人建议我在同意屏幕中更改邮箱地址（我确实这样做了……但没有成功）。总之，我的简单目标是能够通过AdWords API从这个客户那里拉取一份报告（等我搞定了再扩展）。任何帮助都会很感激。谢谢。

oauth2 刷新令牌 adwords api 客户端密钥客户账户开发者令牌同意屏幕报告拉取

无法使用OAuth2为AdWords账户生成刷新令牌

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