public async Task <string> GetDarkSkyWeatherApi(string latitude = "21.028511", string longitude = "105.804817")
        {
            var username = "******";

            try
            {
                username = Environment.MachineName;
            }
            catch (InvalidOperationException ex)
            {
                _logger.LogError($"GetDarkSkyWeatherApi -> InvalidOperationException -> Error: Cannot get Computer Name -> {ex.Message}");
            }
            catch (Exception ex)
            {
                _logger.LogError($"GetDarkSkyWeatherApi -> Exception -> Error: Cannot get Computer Name -> {ex.Message}");
            }

            _logger.LogInformation($"GetDarkSkyWeatherApi username: {username}");

            var apiKey  = ApiSettings.DarkSkyApiKey;
            var hostUri = ApiSettings.DarkSkyApiHostUrl;

            var uriString = $"{hostUri}forecast/{apiKey}/{latitude},{longitude}?units=si&lang=vi";

            var responseString = await HttpClientHelpers.GetHttpClientHelper(uriString);

            if (responseString == null)
            {
                _logger.LogError("Error: GetDarkSkyWeatherApi cannot get api result from DarkSky");
                return("False");
            }

            if (responseString.Contains("Error"))
            {
                _logger.LogError($"Error: GetDarkSkyWeatherApi {responseString}");
                return("False");
            }

            var apiResult = JsonConvert.DeserializeObject <DarkSkyWeatherApiResult>(responseString);

            var latitudeResult  = apiResult.latitude;
            var longitudeResult = apiResult.longitude;
            var timezoneResult  = apiResult.timezone;

            // DarkSky Current Weathers
            await AddOrUpdateDarkSkyWeather(TodayType.Currently, apiResult.currently.time, latitudeResult, longitudeResult, timezoneResult,
                                            apiResult.currently.summary, apiResult.currently.icon, apiResult.currently.temperature, apiResult.currently.apparentTemperature, username);

            // DarkSky Hourly Weathers
            var hourlyDatas = apiResult.hourly.data;

            foreach (var hourlyData in hourlyDatas)
            {
                await AddOrUpdateDarkSkyWeather(TodayType.Hourly, hourlyData.time, latitudeResult, longitudeResult, timezoneResult,
                                                hourlyData.summary, hourlyData.icon, hourlyData.temperature, hourlyData.apparentTemperature, username);
            }

            // DarkSky Daily Weathers
            var dailyData = apiResult.daily.data;

            foreach (var item in dailyData)
            {
                var darkSkyDailyWeather = await _context.DarkSkyDailyWeathers
                                          .FirstOrDefaultAsync(m => m.latitude == latitudeResult && m.longitude == longitudeResult &&
                                                               m.time == item.time);

                if (darkSkyDailyWeather == null)
                {
                    darkSkyDailyWeather = new DarkSkyDailyWeather()
                    {
                        latitude  = latitudeResult,
                        longitude = longitudeResult,
                        timezone  = timezoneResult,

                        time           = item.time,
                        summary        = item.summary,
                        icon           = item.icon,
                        temperatureMax = item.temperatureMax,
                        temperatureMin = item.temperatureMin,

                        DateCreated  = DateTime.Now,
                        DateModified = DateTime.Now,
                        UserCreated  = username,
                        UserModified = username,
                    };

                    await _context.DarkSkyDailyWeathers.AddAsync(darkSkyDailyWeather);

                    await _context.SaveChangesAsync();
                }
                else
                {
                    darkSkyDailyWeather.time           = item.time;
                    darkSkyDailyWeather.summary        = item.summary;
                    darkSkyDailyWeather.icon           = item.icon;
                    darkSkyDailyWeather.temperatureMax = item.temperatureMax;
                    darkSkyDailyWeather.temperatureMin = item.temperatureMin;

                    darkSkyDailyWeather.DateModified = DateTime.Now;
                    darkSkyDailyWeather.UserModified = username;
                }
            }

            return("Success");
        }