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Say you are creating a facebook style app for the app engine. How would you handle user profile pics?
As far as I know, you would have to either store the images in the datastore or blobstore. Which means every fetch to a picture would require going through a dynamic handler and using up at least 20ms cputime.
Is there an efficient way to do this? Or is this just something the app engine can’t currently handle?
You don’t have this issue anymore, since get_serving_url() doesn’t use any of your CPU quota (only outgoing bandwidth and storage). Plus it gives you scaling and cropping for free.