Async/await in Swift
summary
Async/await is available in Swift 5.5+ (Xcode 13/14) and converts nested completion-handler code into straightline calls, demonstrated by a URLSession article fetch, JSON decoding and image extraction that become simple await/try returns. Xcode offers a refactor to convert callbacks to async, and legacy callbacks are wrapped with checkedContinuation to bridge APIs. SwiftUI uses the task view modifier and Task contexts to call async methods and Firebase functions map to async automatically via Swift Evolution 0297.
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chapters (7)
- 0:00Intro
- 1:14Asynchronous code is everywhere
- 4:10Let's add some error handling...
- 8:22Let's convert a callback-based function!
- 11:47Sometimes, it's more complicated, though
- 15:23await: only from within async context
- 19:53Firebase and async/await
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