I know about the new super-fast image serving API for images stored in
the blobstore - it's awesome and greatly simplifies image resizing..

However I still want to resize the original image to a smaller size
before handling it with the image serving API.. So if a user uploads a
5MB Image I want to resize it say to 1000x1000 and then serve using
the Image Service.

My question is how to resize an image from blobstore and put it back
to blobstore after the resize? The resize API returns the modified
image as a byte array, but can somebody provide an example of how to
put that byte array back into the blobstore? I know we are supposed to
POST it to blobstore, but i couldn't get this thing to work - while
handling the POST for original upload, I transform the Image and
supposed to Invoke yet another POST? An working example would be
great!

Thanks!

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