private async void button1_Click(object sender, EventArgs e)
        {
            try
            {
                CognitoHelper cognitoHelper = new CognitoHelper();
                cognitoUser = await cognitoHelper.ValidateUser(txtusername.Text, txtpassword.Text);

                Console.WriteLine(cognitoUser.Username);
                string bucketsforuser = await cognitoHelper.GetS3BucketsAsync(cognitoUser);

                MessageBox.Show(bucketsforuser, "Buckets for the users");
            }
            catch (Exception exp)
            {
                Console.WriteLine(exp);
                MessageBox.Show("Unable to validate the username and password");
            }
        }