In App Purchase Objective C Status from appStoreReceiptURL - ios

Question

I am new in Objective c I found
NSURL* url = [[NSBundle mainBundle] appStoreReceiptURL];
NSLog(#"receiptUrl %#",[url path]);
for check In App Purchase Status for validation or something like this.
how can I get this : as NSString ( INITIAL_BUY,CANCEL)
.INITIAL_BUY Initial purchase of the subscription.
.CANCEL Subscription was canceled by Apple customer support.
.RENEWAL Automatic renewal was successful for an expired subscription.
.INTERACTIVE_RENEWAL Customer renewed a subscription interactively after it lapsed, either by using your app’s interface or on the App Store in account settings.
.DID_CHANGE_RENEWAL_PREFERENCE Customer changed the plan that takes affect at the next subscription renewal.

Answer 1

The url you have, is just the location of the receipt, so you first need to read the receipt file:
- (NSData *)loadReceipt
{
LogMethodCall
NSURL *url = NSBundle.mainBundle.appStoreReceiptURL;
if (!url) return nil;
NSError *error;
NSData *data = [NSData dataWithContentsOfURL:url options:0 error:&error];
if (data) return data;
NSLog(#"Error loading receipt data: %#", error.localizedDescription);
return nil;
}
Now you have the receipt data, you can convert it to NSDictionary and view its contents:
NSError *error;
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:[self loadReceipt]options:0 error:&error];
if (!error) {
NSLog(#"%#", json);
} else {
NSLog(#"%#", error);
}