private void MaybeCacheObject(ActionExecutedContext context)
{
if (!(context.Result is OkObjectResult result))
{
return;
}
var body = result.Value;
var cacheKey = context.HttpContext.Request.GetDisplayUrl();
var json = JsonSerializer.Serialize(body, _options);
var etag = _generator.GenerateFromBuffer(Encoding.UTF8.GetBytes(json));
context.HttpContext.Response.Headers.Add(HeaderNames.ETag, new[] { etag });
_cache.Save(cacheKey, etag);
var members = AccessorMembers.Create(body, AccessorMemberTypes.Properties, AccessorMemberScope.Public);
foreach (var member in members)
{
if (member.HasAttribute <CacheTimestampAttribute>())
{
var accessor = ReadAccessor.Create(body);
if (accessor.TryGetValue(body, member.Name, out var lastModifiedDate))
{
switch (lastModifiedDate)
{
case DateTimeOffset timestamp:
context.HttpContext.Response.Headers.Add(HeaderNames.LastModified,
timestamp.ToString("R"));
_cache.Save(cacheKey, timestamp);
break;
case DateTime timestamp:
context.HttpContext.Response.Headers.Add(HeaderNames.LastModified,
timestamp.ToString("R"));
_cache.Save(cacheKey, timestamp);
break;
}
}
}
}
}
private void MaybeCacheObject(ActionExecutedContext context)
{
if (!(context.Result is OkObjectResult result))
{
return;
}
var cacheKey = context.HttpContext.Request.GetDisplayUrl();
var json = JsonConvert.SerializeObject(result.Value, _settings);
var etag = _generator.GenerateFromBuffer(Encoding.UTF8.GetBytes(json));
context.HttpContext.Response.Headers.Add(Constants.HttpHeaders.ETag, new[] { etag });
_cache.Save(cacheKey, etag);
// HQ.Data.Contracts: auto-enrich results with Last-Modified.
if (result.Value is IObject resource)
{
var lastModifiedDate = resource.CreatedAt;
context.HttpContext.Response.Headers.Add(Constants.HttpHeaders.LastModified,
lastModifiedDate.ToString("R"));
_cache.Save(cacheKey, lastModifiedDate);
}
}