private static void SaveToCache(BestStoryInfo bestStoryInfo)
{
try
{
var objectAsString = JsonConvert.SerializeObject(bestStoryInfo);
_cacheDB?.StringSet(bestStoryInfo.Id.ToString(), objectAsString);
}
catch (Exception ex)
{
Log.Error($"Error attempting to save a story to the cache for story {bestStoryInfo.Id}", ex);
}
}
/// <summary>
/// This pulls the data for the passed ID. It intentionally ignores if there was an error attempting to pull from or write to cache
/// Also if there was a problem attempting to pull the item from the actual source, this error is ignored as well as TBD the reason, so a stub
/// object will be created in its place
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public static async Task <BestStoryInfo> GetBestStoryInfo(int id)
{
try
{
var result = GetFromCache(id);
if (result != null)
{
return(result);
}
var dataApi = new HackerNewsAPI.HackerNewsDataAPI(new Uri(HackerNewsDataAPI));
var item = await dataApi.GetItemAsync(id);
var bestStoryInfo = new BestStoryInfo
{
Id = item.ID.GetValueOrDefault(0),
By = item.By,
Title = item.Title
};
SaveToCache(bestStoryInfo);
return(bestStoryInfo);
}
catch (Exception ex)
{
Log.Error($"Error attempting to read information from Hacker News for the item {id}", ex);
var bestStoryInfo = new BestStoryInfo
{
Id = id,
By = "<unknown>",
Title = "<Problem encountered attempting to read informtion from Hacker News>"
};
return(bestStoryInfo);
}
}
