You can ban (invalidate) `http://images.com/123.jpg` everytime `http://fancyprocessing.com/processimage?http://images.com/123.jpg` is fetched from the backend (I believe).
I've never had to do this personally, but the documentation on bans might be of use. https://www.varnish-cache.org/docs/trunk/tutorial/purging.html ~Paul On Thu, Mar 22, 2012 at 11:25:07AM -0700, Rares Vernica wrote: > Hello, > > I am new to Varnish so so the question might me a bit poorly stated. I am > trying to configure Varnish so that serving an URL from cache depends on > the freshness of another URL given as argument to the original URL. > > For example, the original URL might look like: > > http://fancyprocessing.com/processimage?http://images.com/123.jpg > > If I have seen this URL before and cached its result, I would like > Varnish to use the cached data only if: > > http://images.com/123.jpg > > has not changed since the result was cached. > > Any pointers would be greatly appreciated. > > Thanks! > Rares > > > _______________________________________________ > varnish-misc mailing list > [email protected] > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc ________________________________ This message may contain confidential or privileged information. If you are not the intended recipient, please advise us immediately and delete this message. See http://www.datapipe.com/legal/email_disclaimer/ for further information on confidentiality and the risks of non-secure electronic communication. If you cannot access these links, please notify us by reply message and we will send the contents to you. _______________________________________________ varnish-misc mailing list [email protected] https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
