Swift Concurrency in ProductionConcurrency by Default, Isolation by Design
You're shipping async code at Swift 6.2. You need the mental model, the patterns, and the debugging skills to survive production. This isn't another async/await tutorial. It's what a Lead Engineer would teach you.
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What You'll Learn
All chapters written the way a Lead iOS Engineer would mentor you in a code review, opinionated, example-driven, and grounded in production code.
The Mental Model Shift
Stop thinking in threads. Learn why MainActor-by-default and structured concurrency aren't constraints, they're guardrails that prevent production crashes.
Actors and Data Races
Understand how isolation works and why Sendable matters. See the data races that only show up in production and how to debug them.
The async/await Patterns
Master structured concurrency, task trees, and cancellation that actually works. Learn the memory management pitfalls that burn production apps.
Migrating Real Codebases
A systematic playbook for converting GCD and completion handlers to structured concurrency. Enable strict concurrency checking without losing your mind.
Production-Ready Patterns
Networking with proper cancellation. Persistence under load. State management that doesn't race. Learn patterns that actually ship.
Debugging Concurrency Failures
Read Thread Sanitizer output, profile task overhead, and trace crashes back to their source. This is what other books skip.
Chapters Included
Around 20 chapters, each grounded in real production code, war stories, and the kind of judgment calls you only learn from shipping.
Why Concurrency Matters
The MainActor Revolution
Your First async/await
Tasks and Task Trees
Cancellation That Works
Continuations Explained
Understanding Actors
Data Races and Isolation
Sendable Types
MainActor and Global Actors
AsyncSequence and Streams
SwiftUI Concurrency
Networking and Persistence
Real-World Patterns
Testing Async Code
Debugging Failures
Performance and Profiling
Migrating to Swift 6
Safe Architecture
Common Errors and Solutions
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