Styjun

I have one weird issue right now. I am using DispatchGroup() to verify in-app subscriptions on load. It works only if I have already authenticated with apple id.

 let dispatchGroup = DispatchGroup()

 var index = 0 // <--- Just For test
 for a in inAppPurchaseIds 
 index = index + 1
 print("INDEX ENTER --> (index)")
 dispatchGroup.enter() // <<---

 MPInAppPurchases.verifySubscription(a) [weak self] status, data, error, expDate in
 print("LOOP COUNT --> YES")

 guard let me = self else 
 print("INDEX LEAVE ME --> (a)")

 dispatchGroup.leave()
 return
 

 print("DATA ---- (String(describing: data))")

 print("INDEX LEAVE --> (a)")

 dispatchGroup.leave()
 
 

 dispatchGroup.notify(queue: .main) 
 print("NOTIFY")
 

Function that verifies receipt

 static func verifySubscription(_ id: String, completion: purchaseHandler?) 
 let appleValidator = AppleReceiptValidator(service: .production, sharedSecret: sharedSecret)
 SwiftyStoreKit.verifyReceipt(using: appleValidator) result in
 switch result 
 case .success(let receipt):
 // Verify the purchase of a Subscription
 let purchaseResult = SwiftyStoreKit.verifySubscription(
 ofType: .autoRenewable, // or .nonRenewing (see below)
 productId: id,
 inReceipt: receipt)

 switch purchaseResult 
 case .purchased(let expiryDate, _):
 print("(id) is valid until (expiryDate)")
 completion?(true, "Product Purchased", nil, expiryDate)
 case .expired(let expiryDate, _):
 print("(id) is expired since (expiryDate)")
 completion?(false, "Product Expired", nil, expiryDate)
 case .notPurchased:
 print("The user has never purchased (id)")
 completion?(false, "Product Not Purchased", nil, nil)
 

 case .error(let error):
 print("Receipt verification failed: (error)")
 completion?(false, "Receipt verification failed", error.localizedDescription, nil)
 
 

LOG

INDEX ENTER --> 1
INDEX ENTER --> 2
INDEX ENTER --> 3

LOOP COUNT --> YES
DATA ---- Optional("Product Not Purchased")
INDEX LEAVE --> kr.co.proPackage

The function returns data on completion but here I am unable to get any data from the function and only once it leaves the group. Any idea why this happens? This does happens only when I am not logged in with my apple id in my device. Once its done, it works perfectly.

Steps to reproduce the issue

Log out from my apple id > remove an app from my device > relaunch the app.