Asyncsequence

Using AsyncSequence in Swift

Published on September 1, 2021

• This article is part of my Modern Concurrency in Swift Article Series.*

Table of Contents

1. Modern Concurrency in Swift: Introduction
2. Understanding async/await in Swift
3. Converting closure-based code into async/await in Swift
4. Structured Concurrency in Swift: Using async let
5. Structured Concurrency With Group Tasks in Swift
6. Introduction to Unstructured Concurrency in Swift
7. Unstructured Concurrency With Detached Tasks in Swift
8. Understanding Actors in the New Concurrency Model in Swift
9. @MainActor and Global Actors in Swift
10. Sharing Data Across Tasks with the @TaskLocal property wrapper in the new Swift Concurrency Model
11. Using AsyncSequence in Swift
12. Modern Swift Concurrency Summary, Cheatsheet, and Thanks

Along the new concurrency APIs introduced in Swift at WWDC2021, we have AsyncSequence. AsyncSequence is a collection protocol that allow us to receive data in loops and even top higher order functions - such as filter, map and reduce - asynchronously, being able to await for new data as it becomes available.