private void GetSingleUser(string userId, bool includeCustom, Dictionary <string, object> externalQueryParam, PNCallback <PNGetUserResult> callback) { if (callback == null) { throw new ArgumentException("Missing callback"); } if (string.IsNullOrEmpty(userId)) { throw new ArgumentException("Missing userId"); } IUrlRequestBuilder urlBuilder = new UrlRequestBuilder(config, jsonLibrary, unit, pubnubLog, pubnubTelemetryMgr); urlBuilder.PubnubInstanceId = (PubnubInstance != null) ? PubnubInstance.InstanceId : ""; Uri request = urlBuilder.BuildGetSingleUserRequest(userId, includeCustom, externalQueryParam); RequestState <PNGetUserResult> requestState = new RequestState <PNGetUserResult>(); requestState.ResponseType = PNOperationType.PNGetUserOperation; requestState.PubnubCallback = callback; requestState.Reconnect = false; requestState.EndPointOperation = this; string json = ""; requestState.UsePostMethod = false; json = UrlProcessRequest <PNGetUserResult>(request, requestState, false); if (!string.IsNullOrEmpty(json)) { List <object> result = ProcessJsonResponse <PNGetUserResult>(requestState, json); ProcessResponseCallbacks(result, requestState); } }