Api 自动刷新LinkedIn访问令牌

我正在尝试在应用程序的后台自动刷新访问令牌。我读了这篇博文（），但我还是不明白

当我尝试用这个POST请求刷新令牌（其中XXXXXXXXX被我先前获得的请求令牌替换）时，如上面博客文章中所述，我得到一个空的访问令牌

我在Python中执行以下步骤

request_token_url = 'https://api.linkedin.com/uas/oauth/requestToken?scope=r_fullprofile+rw_groups'
authorize_url = 'https://www.linkedin.com/uas/oauth/authenticate'

consumer = oauth.Consumer(consumer_key, consumer_secret)
client = oauth.Client(consumer)

# fetch a request token
resp, content = client.request(request_token_url, "POST")

request_token = dict(urlparse.parse_qsl(content))

# send a request to refresh an access token
resp, content = client.request("%s?oauth_token=%s" % (authorize_url, request_token['oauth_token']), "POST")
print resp,content

那么，resp是

{'-content-encoding': 'gzip',
 'age': '1',
 'connection': 'keep-alive',
 'content-language': 'en-US',
 'content-length': '0',
 'date': 'Sun, 03 Mar 2013 13:11:05 GMT',
 'location': 'https://www.linkedin.com/uas/oauth/authorize?oauth_token=9e8c5d13-208f-405d-885f-3365e7098fc1&state=',
 'p3p': 'CP="CAO DSP COR CUR ADMi DEVi TAIi PSAi PSDi IVAi IVDi CONi OUR DELi SAMi UNRi PUBi OTRi IND PHY ONL UNI PUR FIN COM NAV INT DEM CNT POL PRE"',
 'server': 'Apache-Coyote/1.1',
 'set-cookie': '_lipt=deleteMe; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/, bcookie="v=2&2b52692f-de6c-4ba5-9a2c-62e020790a41"; Version=1; Domain=linkedin.com; Max-Age=63072000; Expires=Tue, 03-Mar-2015 13:11:06 GMT; Path=/, leo_auth_token="GST:9isMS9qbt9c-2XNJU0diaae-LMc-uie4STjVn5qiIk_JtnNvbbPKMS:1362316266:d50e8735b56508fda71b68bd9a5395176e9e603d"; Version=1; Max-Age=1799; Expires=Sun, 03-Mar-2013 13:41:05 GMT; Path=/, sl="delete me"; Version=1; Max-Age=0; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/, s_leo_auth_token="delete me"; Version=1; Max-Age=0; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/, JSESSIONID="ajax:2593452035081810950"; Version=1; Path=/, visit="v=1&G"; Version=1; Max-Age=63072000; Expires=Tue, 03-Mar-2015 13:11:06 GMT; Path=/, lang="v=2&lang=en-us"; Version=1; Domain=linkedin.com; Path=/, X-LI-IDC=C1',
 'status': '302',
 'vary': 'Accept-Encoding',
 'x-li-uuid': 'TxiUiruqZNIVm5J4ldUQ0w=='}

内容为空，但应包含刷新的访问令牌

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我做错了什么？

我认为您实际上应该将用户重定向（例如a 302）到第二个端点，而不是向其发布消息