public AuthenticationProvider(string id, string secret)
{
client_id = id;
client_secret = secret;
request = string.Format("grant_type=client_credentials&client_id={0}&client_secret={1}&scope=http://api.microsofttranslator.com",HttpUtility.UrlEncode(client_id), HttpUtility.UrlEncode(client_secret));
token = HttpPost();
token_timestamp = DateTime.Now;
}
public AccessToken GetAccessToken()
{
if (DateTime.Now > token_timestamp.AddMinutes(token_renewal_interval))
{
token = HttpPost();
token_timestamp = DateTime.Now;
}
return token;
}