How do I migrate from legacy code with StoreKit 2 in Swift?

When migrating from legacy code using StoreKit 1 to StoreKit 2 in Swift, it is essential to take advantage of the new features and functionalities introduced in StoreKit 2. Below are the steps for a smooth transition and an example of how to implement the new features.

StoreKit 2 offers asynchronous APIs, improved receipt validation, and better user experience with handling in-app purchases. The migration process may involve updating your purchasing logic to work with the new APIs while ensuring backward compatibility when necessary.


        // Example of retrieving products with StoreKit 2
        
        import StoreKit
        
        struct ProductListView: View {
            @State private var products: [Product] = []
            @State private var purchaseStatus: String = ""

            var body: some View {
                List(products) { product in
                    VStack(alignment: .leading) {
                        Text(product.displayName)
                        Button("Buy for \(product.displayPrice)") {
                            purchase(product)
                        }
                    }
                }
                .task {
                    await loadProducts()
                }
            }

            private func loadProducts() async {
                do {
                    products = try await Product.products(for: ["your_product_id_1", "your_product_id_2"])
                } catch {
                    purchaseStatus = "Failed to load products: \(error.localizedDescription)"
                }
            }

            private func purchase(_ product: Product) {
                Task {
                    do {
                        let result = try await product.purchase()
                        // Handle purchase result
                    } catch {
                        purchaseStatus = "Purchase failed: \(error.localizedDescription)"
                    }
                }
            }
        }

How do I migrate from legacy code with StoreKit 2 in Swift?

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How do I migrate from legacy code with StoreKit 2 in Swift?

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