Creating a server for the game. How to break it into rooms according to the cs: go principle?

Question

Node.js

Hello toasters!
I am writing a browser-based online game and I want to divide the server into many "channels" for two players. (I write the server on node.js)
I want to make the principle of separation using the example of match-making in counter strike: global offensive, where there is a search for 10 players for whom a room is created.
The question is how to split the server into similar rooms and please share your ideas and experience.