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It is not often when we need to wrap an async function with a completion handler. Typically, the reverse is what happens. This need can happen in codebases where the public interface can’t change just right now, but internally it is moving towards async-await functions. Let’s jump in and see how to wrap an async […]
async/await in Swift was introduced with iOS 15, and I would guess that at this point you probably already know how to use it. But have you ever wondered how async/await works internally? Or maybe why it looks and behaves the way it does, or even why was it even introduced in the first place? […]
Managing an app’s memory is something that tends to be especially tricky to do within the context of asynchronous code, as various objects and values often need to be captured and retained over time in order for our asynchronous calls to be performed and handled. While Swift’s relatively new async/await syntax does make many kinds […]
Writing robust and predictable unit tests for asynchronous code has always been particularly challenging, given that each test method is executed completely serially, line by line (at least when using XCTest). So when using patterns like completion handlers, delegates, or even Combine, we’d always have to find our way back to our synchronous testing context […]
Swift 5.5’s new suite of concurrency features definitely played a major role at this year’s edition of WWDC. Particularly, the newly introduced async/await pattern could not just be seen in the more Swift-focused sessions and announcements, but all over the new APIs and features that were unveiled at the conference. While async/await is very likely […]