How do I apply The Composable Architecture (TCA)?

The Composable Architecture (TCA) is a Swift-based architecture framework for building applications in a modular way, promoting a clear separation of concerns and reuse of components. It emphasizes the use of state management, reducers, and side effects, enabling you to manage your application's functionality in a predictable and testable manner.

Here's a simple example of how to apply TCA in your Swift application:


        struct AppState: Equatable {
            var count = 0
        }

        enum AppAction {
            case increment
            case decrement
        }

        struct AppEnvironment {}

        let appReducer = Reducer { state, action, environment in
            switch action {
            case .increment:
                state.count += 1
                return .none
            case .decrement:
                state.count -= 1
                return .none
            }
        }

        struct ContentView: View {
            let store: Store
            
            var body: some View {
                WithViewStore(store) { viewStore in
                    VStack {
                        Text("Count: \(viewStore.count)")
                        HStack {
                            Button("Increment") { viewStore.send(.increment) }
                            Button("Decrement") { viewStore.send(.decrement) }
                        }
                    }
                }
            }
        }

How do I apply The Composable Architecture (TCA)?

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How do I apply The Composable Architecture (TCA)?

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