public async Task <ClientAuthenticationResponse> AuthenticateClient(string _clientId, string _clientSecret, bool isLive = false)
{
var client = HttpConnection.CallClient(isLive);
var bodyKeyValues = new List <KeyValuePair <string, string> >();
bodyKeyValues.Add(new KeyValuePair <string, string>("client_id", _clientId));
bodyKeyValues.Add(new KeyValuePair <string, string>("client_secret", _clientSecret));
bodyKeyValues.Add(new KeyValuePair <string, string>("grant_type", "client_credentials"));
var formContent = new FormUrlEncodedContent(bodyKeyValues);
var response = await client.PostAsync("/connect/token", formContent);
var responseJson = await response.Content.ReadAsStringAsync();
return(JsonConvert.DeserializeObject <ClientAuthenticationResponse>(responseJson));
}