You can use lambda edge functions for this. They recently announced support for query string parameters. https://aws.amazon.com/about-aws/whats-new/2017/10/lam

You can use lambda edge functions for this. They recently announced support for query string parameters. https://aws.amazon.com/about-aws/whats-new/2017/10/lambda-at-edge-now-provides-access-to-query-string-parameters-country-and-device-type-headers/ https://aws.amazon.com/about-aws/whats-new/2017/10/lambda-at... I have built an image resizing service around this with go and libvips. With go libvips, s3gof3r, you can load s3 images directly into a buffer, pass to libvips, and serve without writing to disk. Basically, you can use edge functions with your origin as the above go service.