How to activate trial subscription of monthly subscription (auto-renewing)? - ios

Question

I created a monthly subscription (auto-renewing) and installed a trial of 14 days for it in the App Store Connect. How to activate it now? I want that immediately after registering the user in the application a window appears with a proposal to purchase a monthly subscription or take advantage of the 14-day free version. How to use it in code?

Answer 1

It doesn't matter whether or not your subscription has introductory period. You need to implement:
1. products fetching using SKProductsRequest:
func loadProducts(){
let request = SKProductsRequest.init(productIdentifiers: productIds)
request.delegate = self
request.start()
}
func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {
products = response.products
}
initiate payment process of that product using SKPaymentQueue:
let payment = SKPayment(product: product)
SKPaymentQueue.default().add(payment)
Handle each switch-case in updated transactions method:
func paymentQueue(_ queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) {
for transaction in transactions {
switch (transaction.transactionState) {
case .purchased:
SKPaymentQueue.default().finishTransaction(transaction)
// handle here
break
case .failed:
SKPaymentQueue.default().finishTransaction(transaction)
// handle here
break
case .restored:
SKPaymentQueue.default().finishTransaction(transaction)
// handle here
break
case .deferred, .purchasing:
break
default:
break
}
}
More details you can read in my article: https://blog.apphud.com/swift-tutorial-subscriptions/
You can also use the SwiftyStoreKit library.