/// <summary>
/// Save response from url to cache.
/// </summary>
/// <param name="requestUrl"></param>
/// <param name="response"></param>
void SaveToCache(IApiRequest request, IApiResponse response)
{
var entryOptions = new MemoryCacheEntryOptions()
{
Size = 1,
// Add one minute so event manager has time to pull old request before it is removed
AbsoluteExpiration = response.Expired + new TimeSpan(0, 1, 0)
};
cache.Set(request.GetHashCode(), response, entryOptions);
}
/// <summary>
/// Tries to retrive an eTag from a response.
/// </summary>
/// <param name="request"></param>
/// <param name="index"></param>
/// <param name="eTag"></param>
/// <returns></returns>
bool TryGetETag(IApiRequest request, out string eTag)
{
if (cache.TryGetValue(request.GetHashCode(), out IApiResponse response))
{
eTag = response.ETag;
return(true);
}
eTag = "";
return(false);
}
/// <summary>
/// Check if request has been cached. And not expired
/// </summary>
/// <param name="request"></param>
/// <param name="response"></param>
/// <returns></returns>
public bool TryHitCache(IApiRequest request, bool validateTime, out IApiResponse response)
{
return(cache.TryGetValue(request.GetHashCode(), out response) && (!validateTime || DateTime.Now < response.Expired));
}