/// <summary>
/// 获取企业号的永久授权码
/// 该API用于使用临时授权码换取授权方的永久授权码，并换取授权信息、企业access_token。
/// </summary>
/// <param name="helper"></param>
/// <param name="request"></param>
/// <returns></returns>
public static GetPermanentCodeResult GetPermanentCode(this IQyHelper helper, GetPermanentCodeRequest request, string suiteAccessToken)
{
string url = string.Format("{0}service/get_permanent_code?suite_access_token={1}", baseUrl, suiteAccessToken);
return(HttpHelper.HttpPost.GetJsonResult <GetPermanentCodeRequest, GetPermanentCodeResult>(request, url));
}
