How to send messages to particular users Ratchet PHP Websocket

Question

I\'m trying to build a system where user can subscribe to a category on establishing connection to websocket server and then he will start receiving updates for that category. S

Answer 1

// SOCKET VARIABLE DECLARATION
var mySocket;

// MESSAGE
const socketMessageListener = function(event) {
    var data = JSON.parse(event.data);
};

// OPEN SOCKET
const socketOpenListener = function(event) {
    console.log('Connected');
};

// CLOSE OR DISCONNECT SOCKET
const socketCloseListener = function(event) {
    if (mySocket) {
        console.error('Disconnected.');
    }
    mySocket = new WebSocket('ws://localhost:8080');
    mySocket.addEventListener('open', socketOpenListener);
    mySocket.addEventListener('message', socketMessageListener);
    mySocket.addEventListener('close', socketCloseListener);
};

// CALL THE LISTENER
socketCloseListener();

function sendMessage(data) {
    mySocket.send(JSON.stringify(data));
}

user3049006 i found this code in my research to keep the connection persistent if fail retry the connection again.