Building search into your view controllers is rather simple in an iOS application. In this lesson, we'll be utilizing the UISearchController to add in a search bar at the top of our AppsSearchController. With this search bar now available, we can hook it up to our searching function inside of our Service layer. At the end of the lesson, I'll briefly go over throttling so that searches aren't executed so aggressively. This will be done using a Timer object which is pretty easy to set up.