public async Task <IActionResult> Get(string city)
        {
            if (string.IsNullOrEmpty(city))
            {
                return(BadRequest());
            }

            var entity = await _repo.FetchWeatherForecast(city);

            if (entity == null)
            {
                return(NotFound());
            }

            await _repo.SaveWeatherForecast(entity);

            return(Ok(MapHelper.MapToViewModel(entity)));
        }