Using async/await in SwiftUI

Learn how to use Swift's upcoming async/await feature in SwiftUI apps.

00:00 Intro
00:50 Sample App in SwiftUI
01:20 Asynchronous code
02:00 The Pyramid of Doom
03:22 Installing theCompiler Toolchain
04:44 The callback-based protocol
04:55 Implementing the asynchronous protocol
05:57 Implementing the analyser process
08:12 Asynchronous implementation of the service
11:17 Connecting to the UI
13:30 Re-run the application
13:53 The asynchronous protocol and implementation
14:20 Closure

[gangalo]

I'm so looking forward to seeing this channel grow! (no pressure :) ) Your tutorials over at firebase opened so many doors for me, especially with Combine.

[frederickjavalera]

How did you make the arrows in your closures look like actual arrows instead of -> ?

[PeterFriese]

Hey everyone, and thanks for all the great feedback on this video! Async/await is now a part of Swift 5.5 (available in Xcode 13), so it's a lot easier to get started with this new feature (no more downloading and installing a custom compiler toolchain!). I've started a new series about using Swift Concurrency in SwiftUI, and the first video is an updated version of this one.

it is difficult for me to understand right now, but I hope I will understand in the future.

[BigCarso]

The "pyramid of doom" is a mythical problem. It's a consequence of doing too much in one function. It's very easy to use callbacks and avoid the pyramid. I've never seen a pyramid in the wild. It's always brought up as a drawback of callbacks, but it's not the real drawback. These are: inability to transform data easily because there is no return type of the function, no cancellation support