private async System.Threading.Tasks.Task UpdateRequestListAsync(bool refresh)
        {
            if (refresh)
            {
                HttpClient client = await HttpUtil.GetAuthorizedHttpClientAsync();

                foreach (RequestInfo request in RequestStorage.FindAll())
                {
                    var requestInfoResponse = client.GetAsync($"{Startup.Configuration["Api:SignApi:Url"]}/request/{request.Id}?includeDocs=true").Result;
                    if (requestInfoResponse.IsSuccessStatusCode)
                    {
                        string requestInfoBody = await requestInfoResponse.Content.ReadAsStringAsync();

                        RequestStorage.Upsert(JsonConvert.DeserializeObject <RequestInfo>(requestInfoBody));
                    }
                }
            }
            SignRequest = RequestStorage.FindAll();
        }