Websafe encoding of hashed string in nodejs

Question

I am creating a re-director of sorts in nodejs. I have a few values like userid // superid

these I would like to hash to prevent users from retrieving the url and fakin

Answer 1

You could use a so called URL safe variant of Base64. The most common variant, described in RFC 4648, uses - and _ instead of + and / respectively, and omits padding characters (=).

Most implementations of Base64 support this URL safe variant too, though if yours doesn't, it's easy enough to do manually.