import { PubSub, EMIT_GLOBAL } from 'pub-sub';
const pubsub = new PubSub();
const unsubscribeChat = pubsub.on('chat/message', (message) => {
...
});
const dialogHandler = (payload) => { ... };
pubsub.on('dialog/opened', dialogHandler);
pubsub.emit('chat/message', 'Hello');
/* Emit event to every subscriber */
pubsub.emit(EMIT_GLOBAL, '[System error]');
/* Remove subscriptions */
unsubscribeChat();
pubsub.off('dialog/opened', dialogHandler);
/* or remove all subscribers of specific event */
pubsub.off('dialog/opened');