public static void AddCachePrefernces(this HttpContext httpContext, CacheableQuery query)
{
if (httpContext == null)
{
throw new ArgumentNullException(nameof(httpContext));
}
if (query == null)
{
throw new ArgumentNullException(nameof(query));
}
if (!httpContext.Request.Headers.TryGetValue(HeaderNames.CacheControl, out var ccHeader))
{
return;
}
switch (ccHeader.ToString())
{
case "no-cache":
query.CacheControl = CacheControl.NoCache;
break;
case "only-if-cached":
query.CacheControl = CacheControl.OnlyIfCached;
break;
}
}
public static void AddFromCacheHeader(this HttpContext httpContext, CacheableQuery query)
{
if (httpContext == null)
{
throw new ArgumentNullException(nameof(httpContext));
}
if (query == null)
{
throw new ArgumentNullException(nameof(query));
}
if (query.CompletedFromCache)
{
httpContext.Response.Headers.Add(FromCacheHeaderName, "true");
}
}
