Swift StoreKit and In-App Purchases

How it works

Use a local StoreKit configuration or an appropriately configured sandbox to develop purchase flows. The product, account, transaction verification and entitlement policy are separate boundaries. This file only performs an explicit user-requested sync and reads verified current entitlements for a placeholder non-consumable product; it never starts a purchase.

Apple-only setup and review status

Create a separate iOS SwiftUI App learning project in a suitable Xcode version, choose an appropriate simulator/device and replace the generated app/view Swift source with this complete file. Keep one @main entry point. Widget and App Clip lessons explicitly require their own extension/clip targets instead; capability, purpose-string, entitlement and account steps in the lesson must be completed separately. No Xcode project, signing certificate, account or service was provisioned here.

Bhylu has no Swift browser runner. The JavaScript/Python editors do not run these sources; Apache, PHP and MySQL are not required. Downloads are source text, never executable teaching endpoints.

Download the complete storekit.swift · Download all source files with hash checks

For the optional collection, save download-examples.mjs in a new folder and run node download-examples.mjs. A local preview uses node download-examples.mjs http://127.0.0.1:8000/examples/swift/. It refuses an existing bhylu-swift-examples folder and installs or executes no Swift automatically. Apple-only files remain separate Xcode learning examples, not a portable Swift package target.

Example

// Apple-only learning file: iOS 17+ target with a suitable Xcode SDK.
// Not compiled or run in this Windows/Linux review.
import SwiftUI
import StoreKit


struct DemoView: View {
    @State private var notice = "No entitlement check"
    var body: some View {
        VStack(spacing: 20) {
            Button("Restore and inspect sandbox entitlements") {
                Task {
                    do {
                        try await AppStore.sync()
                        var entitled = false
                        for await result in StoreKit.Transaction.currentEntitlements {
                            switch result {
                            case let .verified(transaction):
                                if transaction.productID == "com.example.workshop.demo", transaction.revocationDate == nil { entitled = true }
                            case .unverified: continue
                            }
                        }
                        notice = entitled ? "Verified configured demo entitlement" : "No verified demo entitlement"
                    } catch { notice = "Restore/check failed" }
                }
            }
            Text(notice)
            Text("No purchase is initiated by this source.").font(.caption)
        }.padding()
    }
}

@main
struct WorkshopDemoApp: App {
    var body: some Scene { WindowGroup { DemoView() } }
}

Expected behaviour and manual checks

Manual check only in a controlled StoreKit test configuration/sandbox: inspect no entitlement, verified entitlement, unverified result, refund/revocation and account-sync failure. No purchase, account operation or entitlement verification was performed here.

A real purchase implementation must handle success verification, pending and user-cancelled outcomes, grant the correct product capability, finish appropriate transactions and monitor later updates. The read-only fixture does not claim to deliver those product workflows.