private async Task <IEnumerable <GetTask> > GetUserTasksInternalAsync(GetUserTasksRequest request) { const string endpoint = "/api/v3/tasks/user"; NameValueCollection queryParameters = new NameValueCollection(); if (request.TaskType.HasValue) { queryParameters.Add("type", request.TaskType.Value.ToString("G")); } if (request.DueDate.HasValue) { queryParameters.Add("dueDate", request.DueDate.Value.ToString("o", DateTimeFormatInfo.InvariantInfo)); } string path = endpoint + queryParameters.ToQueryString(); Uri uri = path.ToUri(); var res = await client.GetAsync(uri).Safe(); return(res.UnwrapHabiticaResponse <IEnumerable <GetTask> >()); }