6.1 Introduction
Push messaging is everywhere. You can see it used in almost all of the top apps today. If you take a look at your most frequently used apps, they tend to have a couple of things in common. They almost always provide a very useful service and they typically employ push messaging to deliver the service in a timely manner.
Push implementations are not the most high-profile, visible aspect of any app, but they are critical in ensuring that our devices receive that important update, notification, or content at precisely the right moment.
In this chapter, I will cover
How push messaging works ...
