static void Main(string[] args) { string consumer_key = "IGWZ6nY3v3cHBh0yfj6RJw"; string consumer_secret = "zfwTlwwjGSAKChGwJi5DpJSBsIlZ7HE3ZCMUfelCk"; Class1 cls = new Class1(); Console.WriteLine(cls.GetAccessToken(consumer_key , consumer_secret)); }