How do I handle errors and retries with StoreKit 2 in Swift?

In Swift, handling errors and implementing retry logic when dealing with StoreKit 2 can enhance the user experience when transactions do not proceed as expected. StoreKit 2 provides a modern approach to managing in-app purchases, and leveraging error handling effectively can lead to smoother workflows.

Here's a basic example demonstrating how to handle errors and implement retries when attempting to fetch products with StoreKit 2:

import StoreKit func fetchProducts(withIdentifiers identifiers: [String]) async throws -> [Product] { var retryCount = 0 let maxRetries = 3 while retryCount < maxRetries { do { let products = try await Product.products(for: identifiers) return products } catch { retryCount += 1 print("Error fetching products: \(error.localizedDescription). Retrying \(retryCount)/\(maxRetries)...") // Introduce a short delay before retrying try await Task.sleep(nanoseconds: 1_000_000_000) // 1 second } } throw NSError(domain: "ProductFetchError", code: 400, userInfo: [NSLocalizedDescriptionKey: "Unable to fetch products after \(maxRetries) attempts."]) }

Swift StoreKit 2 error handling retries in-app purchases

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