socket.io emit to everyone except for some certain clients

Question

In my Node.js server, I have an array of client IDs, and I have a socket that I want to send to all connected clients except for the clients I have in that array, so I want to emit to all clients excluding some clients that i have defined by id, is that possible?

Answer 1

Answering my own question after some research.

One thing you could do is to add the clients you want to exclude inside of a Scoket.io room and then emit to everyone except for that room, like shown below:

io.except("room1").emit(/* ... */); // to all clients except the ones in "room1"

Note that this feature was implemented in version [email protected]. here is documentation for it