I am going to add Apple Pay to one of my existing apps in the App Store. After not coding for a couple of years I have done some research on adding Apple Pay. This is what I am wondering and maybe I just missed it. If I did I aplogize. I know how to add the pay button and do the processing like creating a merchant ID and so forth, but my question is this: How do I test this when I am complete with this step? I assume I will need a third party company such as Square D, or others to handle the final purchase. Is this right? Is there a way to test all this is a sandbox environment?
Thanks