What is the correct way to resubscribe to a socket to protect against breaks?

Question

JavaScript

I use the socketIo library .
This is how I connect to the socket and listen:

socketIo.emit('subscribe', 'message');
socketIo.on('message', function (data) {
//
});

In the event of a disconnection, after reconnecting, subscriptions no longer occur. Of
course, you can cure it like this:

socketIo.on('connect', function (data) {
     socketIo.emit('subscribe', 'message');
});
socketIo.emit('subscribe', 'message');
socketIo.on('message', function (data) {
//
});

But it's kind of a crutch. Everywhere you have to prescribe the same thing twice.
How can I make sure that all subscriptions are automatically renewed at the moment of connection?
Please tell me a good implementation

Answer 1

Make a wrapper and add your "crutch". SocketIO (like sockjs) does not offer such a solution out of the box, so everyone adds on as needed.

Answer 2

Maybe so?

socketIo.on('disconnect', function () {
     socketIo.on('connect', function (data) {
         socketIo.emit('subscribe', 'message');
     });
});