protected override void SetIdentityInformations(ClaimsIdentity identity, string claimedID, IDictionary <string, string> attributeExchangeProperties) { var accountIDMatch = _accountIDRegex.Match(claimedID); if (!accountIDMatch.Success) { return; } var accountID = accountIDMatch.Groups[1].Value; var getUserInfoTask = HTTPClient.GetStringAsync(string.Format(UserInfoUri, Options.AppId, accountID)); getUserInfoTask.Wait(); var userInfoRaw = getUserInfoTask.Result; dynamic userInfo = JsonConvert.DeserializeObject(userInfoRaw); identity.AddClaim(new Claim(ClaimTypes.Name, (string)userInfo["data"][accountID].nickname, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType)); }