Hi all.

I'm caching for the forum use Vbulletin. I've done successfully cache for guests and do not cache for the logged user. However I am having trouble deleting the caching. Because when members logged reply topic, the response for guests is the old cache and they do not see the new topic. So I want when new members reply (identified by method POST), Nginx will automatically clear the cache and caching for that URI will be updated (i am use ngx_cache_purge).

I tried to implement but still have not found any way. Please suggest me a way that you know.

Thanks a lot!