Empty IOS Project With Auto Subscription And Cancellation Check

Hi there , i want you to create an empty ios project that only makes auto subscription to something when button clicked and shows another page . And also after i cancel auto subscription from my app store account you have to check wheter i canceled or not . ** Project must be in Swift 4 ** I do not provide any developer account , you should be test with your account , and provide me code The reason i want this is i have problem with checking cancelations on my own app so that i want to learn how to do it from your code