Blob store that will read from a remote blob store and cache it to a local one.
npm install skim-blob-store
var skim = require('skim-blob-store')
var blobs = skim(localBlobStore, remoteBlobStore)
blobs.createReadStream({key: 'some-key'})
.pipe(process.stdout)
In the above example if some-key is already in localBlobStore it will
just be read from that one. If not it will try and copy it from remoteBlobStore
MIT