This library implements subiz long polling protocol
var Realtime = require('@subiz/wsclient')
var realtime = new Realtime('https://realtime-0.subiz.net/', {
account_id: 'ac1234',
getAccessToken: () => '333344',
user_mask: 'mask123',
})
realtime.onEvent((ev) => console.log(ev))
// subscribe events
await realtime.subscribe(['message_sent', 'user_info_updated'])
console.log(realtime.getStatus()) // 'active'
realtime.stop()