public static IOAuthToken PerformTokenExchange(string serverUrl, string oauthCallbackUrl, OAuthAuthorizationCallback callback)
{
var oauth_connection = new OAuthConnection (serverUrl);
string link_to_open_for_user = "";
link_to_open_for_user = oauth_connection.GetAuthorizationUrl (oauthCallbackUrl);
string verifier = callback (link_to_open_for_user);
bool result = oauth_connection.GetAccessAfterAuthorization (verifier);
if (result == false)
throw new UnauthorizedAccessException ();
var token = oauth_connection.AccessToken;
return token;
}
