Yeah I'm still wondering if I should gzip to whole thing (I'm already base64 encoding anyway). However the duplication overhead would only be really paying off

Yeah I'm still wondering if I should gzip to whole thing (I'm already base64 encoding anyway). However the duplication overhead would only be really paying off with a large number of objects. By the redis reference, I suppose you refer to a uniquely created key each time a user request a possible combination. Something like /short-url/abcd, where abcd would be a key matching {:project-id "505a125e44ae42e05a750c97"... ? That's what I was thinking when talking about a shortening url scheme. It requires more work, but the final URL would indeed be more sexy. Thank you for the input, I appreciate it!