Factories, Builders, and Composition Roots in Swift
Published on 29 April 2026Understand factories, builders, and composition roots in Swift, and learn where each construction pattern belongs.
Practical software architecture and design for iOS engineers.
Understand factories, builders, and composition roots in Swift, and learn where each construction pattern belongs.
Learn when the Repository pattern helps Swift apps, when it becomes a wrapper, and how to design useful data boundaries.
Learn why Swift protocols are not architecture by themselves, and how to use them as meaningful boundaries.
Learn dependency injection in Swift without ceremony using initializers, factories, environment values, and composition roots.
Learn when use cases help iOS architecture, when they add noise, and how to keep them focused in Swift apps.
Learn how to refactor an iOS feature toward better architecture gradually, without rewriting the whole app.
Learn how to test architecture in Swift by focusing on behavior, boundaries, contracts, and meaningful composition.