The Composable Architecture
A Swift library for building applications with a focus on composition, testing, and ergonomics using a unidirectional data flow architecture.
What is The Composable Architecture?
The Composable Architecture (TCA) is a Swift library for building applications using a unidirectional data flow pattern. It provides tools for managing state, handling side effects, and composing features in a way that prioritizes testability and maintainability. It solves the problem of scattered logic and unpredictable state mutations in complex apps by enforcing a consistent structure.
Swift developers building applications for iOS, macOS, iPadOS, visionOS, tvOS, or watchOS who need a scalable and testable architecture for medium to large projects.
Developers choose TCA for its strong emphasis on testing, seamless composition of features, and ergonomic API that reduces boilerplate. Its integration with Swift's concurrency model and dependency management system makes it a robust choice for production apps.
Overview
A library for building applications in a consistent and understandable way, with composition, testing, and ergonomics in mind.
Use Cases
Best For
- Building scalable iOS/macOS apps with complex state management needs
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