Best way to manage Chat channels in Firebase

Question

In my main page I have a list of users and i\'d like to choose and open a channel to chat with one of them.

I am thinking if use the id is the best way and control a

Answer 1

We decided on hashing users uid's, which means you can look up any existing conversation,if you know the other persons uid.

Each conversation also stores a list of the uids for their security rules, so even if you can guess the hash, you are protected.