Just use normal caching http headers. Cache-Control and even Expires. Google will then try to honour them and use the edge-cache. But its been repeatedly said its 'best-effort' its not guaranteed to work.
Also note I beleive it only works on custom domains (ie CNAMEd to ghs.google.com) not when using a appspot.com url. (also be careful, as the Vary header is ignored - even though its meant to be used to control caching.) On Sun, Aug 28, 2011 at 7:28 AM, pdknsk <[email protected]> wrote: > I've noticed that some clients check feeds very frequently, so I'd > like to enable Google Cache to get less hits. Is there official > documentation for this? In particular I'm wondering how to ensure that > it doesn't serve old cached files when the file was updated. It's only > updated several times daily (at most) and only at every full hour, so > I'd be satisfied to just have it cached until the next full hour. > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
