How to update list item in redis?

Question

JavaScript

In my redis, tokens are stored in a list (lpush user1 token1, token2, etc.).
Each of the tokens is for a user session.
I need to regenerate some token, for example token2.
There is a lset user1 index command, where user1 is the name of the list, index(yfxbyftncz c 0) is the index of the list element.
How do I find out in redis the index of a list element by its value?
Or maybe there is some other way to update the value of a list element based on the value of this element?

Answer 1

Store tokens with keys