> POST /o/oauth2/token HTTP/1.1
> Soup-Debug-Timestamp: 1488730761
> Soup-Debug: SoupSession 1 (0xc11100), SoupMessage 1 (0x131f0d0), SoupSocket 1 (0xc29400)
> 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%2FwSlJrnFORySOLgS1wsOe6UxnX7M29DLRr78UDcg_Tfw&redirect_uri=urn%3Aietf%3Awg%3Aoauth%3A2.0%3Aoob&grant_type=authorization_code
  
< HTTP/1.1 200 OK
< Soup-Debug-Timestamp: 1488730761
< Soup-Debug: SoupMessage 1 (0x131f0d0)
< 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 16:19:21 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.GlsFBF-OmjaBxyVt07b_VA59pQBW56_qLGYrHeFJXmAwFrBWjHldsCzVM3Tu9DECD218fDB4z03cc9ueSYP3-0YbtFqkVorRzqOb0HwXAkfxFNjgJgfTjPd3_MP_",
<   "expires_in" : 3600,
<   "refresh_token" : "1/q6ANQdPdeMOZQrOI55_5rpLXO7If75scdqCvUI2YTQ8",
<   "token_type" : "Bearer"
< }