NSOperation

Operations have a reputation for being chunky, especially compared to GCD. However, once you get to know operations, you realise that they are the OOP approach to concurrency in iOS. Here, we look at how to use operations to build a networking layer by encapsulating multiple steps into one unit.

Operations are a powerful way to move work off the main thread. But just because work is undertaken on a background thread doesn't mean we don't care about it. Here, we look at how to coalesce duplicated work.

No one wants networking code scattered everywhere. Here, we look at how to utilise NSOperation to encapsulate each networking request within its own cancellable unit of work.

Sometimes, when you need to know, you need to poll. Here, we look at building a polling mechanism using `NSOperation`.

Moving work onto a background thread can be hard. Here, we look at how to keep it simple.