Question

I am developing an application and using in-app purchases in it. i have created in-app products in iTunes Connect. till yesterday everything was working fine. but today. it started giving this error.

“Error: Payment requests are restricted to products returned as valid via Store Kit’s didRecieveResponse method.”

i have no idea what is the issue. please reply

Answer 1

Ok, This may be the smoking gun —

According to the official dataflow from the Store Kit apps, you are supposed to retrieve information about the available purchases (SKProductsRequest) before trying to make a purchase (SKPaymentQueue).

I added code to do just that, even though the localized data wasn’t being used. I made the call, verified the item was present, and just dumped an NSLOG about it.

The purchase went through, with no errors!

I then removed the code that called SKProductsRequest, and re-ran it, and got the “Payment requests are restricted…” error message.

It almost seems like the store kit framework was changed in such a way as to REQUIRE you to make a call to SKProductsRequest, in order for purchases to behave correctly when tehy are added to SKPaymentQueue.

In computer science speak, they seem to have introduced a hard dependence between the two logically related, but separate modules. This is a REALLY bad practice.

Try adding this code into your app, and call dumpProductInfo at some point prior to making “real” calls to SKPaymentQueue and see if it starts working — be sure to update the embedded string literal with your actual product identifier(s).

-(void) dumpProductInfo
{
        SKProductsRequest *request = [[SKProductsRequest alloc] initWithProductIdentifiers:[NSSet setWithObject:@"com.company.domain.app.purchase"]];
        request.delegate = self;
        [request start];
}

- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response
{
    NSArray *myProduct = response.products;
    // populate UI
    NSLog(@"Products:");
    for (int i = 0; i < [myProduct count]; i++)
    {
        SKProduct *product = [myProduct objectAtIndex:i];
        NSLog(@"Name: %@ - Price: %f   ID: %@" ,
              [product localizedTitle],
              [[product price] doubleValue], 
              [product productIdentifier]);

    }
}

Follow-up: as mentioned below, Apple Technical Note QA1691 confirms that what I thought was happening was correct — two weeks after we figured it out :p