public static async Task <JsonResult> PostYammer(string msg, IFormFile formFile)
{
AuthenticationConfig config = AuthenticationConfig.ReadFromJsonFile("appsettings.json");
var httpClient = new HttpClient();
var apiCaller = new APIHelper(httpClient);
var getUrl = config.YammerPostGroupMessages;// string.Format(config.YammerGetGroupMessages, config.YammerGroupID);
var response = await apiCaller.CallYammerPostResultASync(getUrl, config.YammerUploadGroupID, config.YammerTocken, Display, msg, formFile);
return(response);
// await apiCaller.CallWebApiAndProcessResultASync($"{config.ApiUrl}v1.0/users", result.AccessToken, Display);
}