public static string GetSession ( string apiKey , string secret , string authToken ) { string host = "https://api.facebook.com/restserver.php" ; string _signature = "api_key=" + apiKey + "auth_token=" + authToken + "method=Auth.getSession" + "v=1.0" + secret ; MD5 md5 = MD5 . ToString ( "X2" )); } Dictionary < string , string > parameters = new Dictionary < string , string >(); parameters . ToString ( "X2" )); } Dictionary < string , string > parameters = new Dictionary < string , string >(); parameters .