> POST /o/oauth2/token HTTP/1.1
> Soup-Debug-Timestamp: 1488736754
> Soup-Debug: SoupSession 1 (0x688340), SoupMessage 1 (0xbdd2b0), SoupSocket 1 (0x6a0460)
> Host: accounts.google.com
> Content-Type: application/x-www-form-urlencoded
> Accept-Encoding: gzip, deflate
> User-Agent: libgdata/0.17.7 - gzip
> Connection: Keep-Alive
> 
> client_id=352818697630-nqu2cmt5quqd6lr17ouoqmb684u84l1f.apps.googleusercontent.com&client_secret=-fA4pHQJxR3zJ-FyAMPQsikg&code=4%2Fv_gXJb78sdayihZYv2RA-U7P7q4lJqzoQhSDV3F9H7U&redirect_uri=urn%3Aietf%3Awg%3Aoauth%3A2.0%3Aoob&grant_type=authorization_code
  
< HTTP/1.1 200 OK
< Soup-Debug-Timestamp: 1488736755
< Soup-Debug: SoupMessage 1 (0xbdd2b0)
< Content-Type: application/json; charset=utf-8
< X-Content-Type-Options: nosniff
< Cache-Control: no-cache, no-store, max-age=0, must-revalidate
< Pragma: no-cache
< Expires: Mon, 01 Jan 1990 00:00:00 GMT
< Date: Sun, 05 Mar 2017 17:59:15 GMT
< Content-Disposition: attachment; filename="json.txt"; filename*=UTF-8''json.txt
< Content-Encoding: gzip
< Server: ESF
< X-XSS-Protection: 1; mode=block
< X-Frame-Options: SAMEORIGIN
< Alt-Svc: quic=":443"; ma=2592000; v="36,35,34"
< Transfer-Encoding: chunked
< 
< {
<   "access_token" : "ya29.GlsFBA34dYY2-gu5C9DE4WYt6ilEBUvfPhJ6UIwj4KwqEK-uyMAhxBD-N-p3gIZ7ftYRvYxo_TPdTm89NhVfVa-YXGrdVkM1PcZMOftGEYbSVjDE-GCuhrzL2IPd",
<   "expires_in" : 3600,
<   "refresh_token" : "1/_F_QFRKDjrmwDaWi8MxGJ9ZtQcCEIm_KBbnZwmpCKFo",
<   "token_type" : "Bearer"
< }