Socket IO on Event Sub?

[Dist]

https://socket.io/docs/v4

What Socket.IO is not​

CAUTION

Socket.IO is NOT a WebSocket implementation.

Although Socket.IO indeed uses WebSocket for transport when possible, it adds additional metadata to each packet. That is why a WebSocket client will not be able to successfully connect to a Socket.IO server, and a Socket.IO client will not be able to connect to a plain WebSocket server either.

If you want to use EventSub with Websockets, you have to do it with a Websocket client, not socket.io as that’s not a websocket client.