public async Task <OneCallWeatherForecast> GetWeatherForecastAsync()
{
OneCallWeatherForecast forecast = await _weatherForecastService.GetOneCallForecastAsync();
WeatherForecast = forecast;
RaiseOnChangeEvent();
return(forecast);
}
public async Task <OneCallWeatherForecast> GetOneCallForecastAsync()
{
if (_cache.TryGetValue("weather", out OneCallWeatherForecast currentWeather))
{
_logger.LogInformation("[CACHE] Got weather forecast from cache");
return(currentWeather);
}
// icons: https://openweathermap.org/weather-conditions
string apiCall = $"https://api.openweathermap.org/data/2.5/onecall" +
$"?lat={_configuration.Lat}" +
$"&lon={_configuration.Lon}" +
$"&appid={_configuration.ApiKey}" +
$"&units={_configuration.Unit}" +
$"&lang={_configuration.Language}";
HttpResponseMessage response = await _httpClient.GetAsync(apiCall);
if (!response.IsSuccessStatusCode)
{
_logger.LogError("Error getting weather forecast: {statusCode}", response.StatusCode);
return(new OneCallWeatherForecast());
}
string responseObj = await response.Content.ReadAsStringAsync();
JsonSerializerOptions options = new JsonSerializerOptions()
{
PropertyNameCaseInsensitive = true
};
OneCallWeatherForecast oneCallWeatherForecast = JsonSerializer.Deserialize <OneCallWeatherForecast>(responseObj, options);
if (oneCallWeatherForecast?.Current == null)
{
_logger.LogError("Error getting weather forecast, response is null");
return(new OneCallWeatherForecast());
}
_cache.Set("weather", oneCallWeatherForecast, new DistributedCacheEntryOptions
{
AbsoluteExpirationRelativeToNow = TimeSpan.FromMinutes(60)
});
_logger.LogInformation("Got weather forecast");
return(oneCallWeatherForecast);
}