> POST /o/oauth2/token HTTP/1.1
> Soup-Debug-Timestamp: 1411296439
> Soup-Debug: SoupSession 1 (0x1888240), SoupMessage 2 (0x1ace9b0), SoupSocket 2 (0x1a43330)
> Host: accounts.google.com
> Content-Type: application/x-www-form-urlencoded
> Accept-Encoding: gzip, deflate
> User-Agent: libgdata/0.16.1 - gzip
> Connection: Keep-Alive
> 
> client_id=352818697630-nqu2cmt5quqd6lr17ouoqmb684u84l1f.apps.googleusercontent.com&client_secret=-fA4pHQJxR3zJ-FyAMPQsikg&refresh_token=1%2FmIo8e1bmcRxrXd2gKfhtabh3Vvtjfc3GGJT5ODsf_t0&grant_type=refresh_token
  
< HTTP/1.1 200 OK
< Soup-Debug-Timestamp: 1411296439
< Soup-Debug: SoupMessage 2 (0x1ace9b0)
< Content-Type: application/json; charset=utf-8
< Cache-Control: no-cache, no-store, max-age=0, must-revalidate
< Pragma: no-cache
< Expires: Fri, 01 Jan 1990 00:00:00 GMT
< Date: Sun, 21 Sep 2014 10:47:19 GMT
< Content-Disposition: attachment; filename="json.txt"; filename*=UTF-8''json.txt
< Content-Encoding: gzip
< X-Content-Type-Options: nosniff
< X-Frame-Options: SAMEORIGIN
< X-XSS-Protection: 1; mode=block
< Server: GSE
< Alternate-Protocol: 443:quic,p=0.002
< Transfer-Encoding: chunked
< 
< {
<   "access_token" : "ya29.hwDtghueiadzgPMb3otq_QAWMXEVup-cyRwyiP0GQGH3iqMMtfvQMngM",
<   "token_type" : "Bearer",
<   "expires_in" : 3600
< }