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Reverse path order - Dynamic Image Transformation for Amazon CloudFront

Reverse path order

You can place filters at the end of the path rather than before the image key.

  1. Use the REWRITE_MATCH_PATTERN with a regular expression that parses the path into two groups. The solution then uses REWRITE_SUBSTITUTION to switch the order of the groups.

  2. Use a regular expression specified by REWRITE_MATCH_PATTERN to parse the path into groups for a request like https://abcd.cloudfront.net/imagekey.png/fit-in/200x200, where the image key appears before the filters. For example:

    REWRITE_MATCH_PATTERN = /^\/(.*?\..*?)\/(.+)$/gm

  3. Reverse the order of the fields with REWRITE_SUBSTITUTION to convert the request into a Thumbor style request like https://abcd.cloudfront.net/fit-in/200x200/imagekey.png, where the image key is moved to the end of the request. For example:

    REWRITE_SUBSTITUTION = /$2/$1