notifier.js

// Initialization
// by providing channels, subscription could be automatic
var notifiers = AeroGear.Notifier([
    {
        type: "vertx",
        name: "appNotifications",
        settings: {
            connectURL: "someURL",
            channels: [
                {
                    name: "channel1",
                    callback: function(){}
                },
                {
                    name: "channel2",
                    callback: function(){}
                }
            ]
        }
    },
    {
        type: "atmosphere",
        name: "stockTicker",
        settings: {
            connectURL: "someURL",
            channels: [
                {
                    name: "channel1",
                    callback: function(){}
                }
            ]
        }
    }
]).clients; // Or what ever name we want to call these

// Usage
notifiers.appNotifications.channel1.publish( messageObject );
notifiers.stockTicker.channel1.unsubscribe();
...

base/core API: https://gist.github.com/matzew/bd4f3c41e1114c225eb1