The best way would probably to generate a datastore entity with an expiration date/time, a random key and create a URL containing that random key that forwards to the final blob URL. You'd check for expiration on a fetch and sweep expired entities with a cron job. Alternatively you can store the random key into memcache and just let the expiration mechanism handle it, the only drawback here is the potential for volatility.
On Wed, Aug 25, 2010 at 2:39 PM, John McLaughlin < [email protected]> wrote: > This is something simple that I have to believe someone has already > done and standardized. My main objective is to be able to create > virtual paths to blobstore entities allow clients to retrieve items > for only a set period of time. For example the path > > ...appspot.com/blah/timedBlob/ > ag5tYXNzLWFuaW1hdGlvbnIPCxIJVHJhbnNjb2RlGDcM/my_great_video.mp4 > > ...will be served for only 5 minutes and is inaccessible after that. > > I've already done this for some specific objects, but I need to > generalize it, so I'm wondering if there is a standard class or "best > practices" way to do this already. My searching forums and docs > hasn't turned up anything relevant. If nobody has this already I'd be > happy to generalize what I have and post it. > > Thanks, > John > > -- > 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]<google-appengine%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > > -- Ikai Lan Developer Programs Engineer, Google App Engine Blog: http://googleappengine.blogspot.com Twitter: http://twitter.com/app_engine Reddit: http://www.reddit.com/r/appengine -- 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.
