BattlelogMobile.Core.Service.DownloadService.ResolveUserIdAndPlatform C# (CSharp) Метод

        public async Task<BattlelogUser> ResolveUserIdAndPlatform(string url, UserIdAndPlatformResolver userIdAndPlatformResolver)
        {
            BattlelogUser user = null;

            var request = WebRequest.Create(new Uri(url)) as HttpWebRequest;
            if (request == null)
                throw new ArgumentNullException();

            request.Method = Common.HttpGetMethod;
            request.Accept = Common.HttpAccept;
            request.UserAgent = Common.HttpUserAgent;
            request.CookieContainer = CookieJar;

            var task = request.GetResponseAsync();

            try
            {
                var response = (HttpWebResponse) await task.ConfigureAwait(false);
                var responseStream = response.GetResponseStream();
                user = userIdAndPlatformResolver.Resolve(responseStream);
                response.Close();
            }
            catch (WebException we)
            {
                Messenger.Default.Send(new NotificationMessage(this, we.Message));
            }
            return user;
        }