One of the great features of S3 is that it has an arbitrary prefix index on keys! And the list API paginates on batches of 1000 which is useful. You can retrie

One of the great features of S3 is that it has an arbitrary prefix index on keys! And the list API paginates on batches of 1000 which is useful. You can retrieve all objects with a given prefix, which is great for storing content-addressed files, and being able to iterate on them. You can also partition on arbitrary prefixes too.