Summary

In this chapter, you learned about the online payment process followed by merchants to obtain card-based payments. The chapter introduced general online payment concepts to describe how an app uses Apple Pay to perform a similar function but more securely. Finally, you learned how to create the Apple Pay merchant identifier and merchant certificate to enable Apple Pay payment in your apps.

The next chapter focuses on the payment request workflow, where you present the Apple Pay button when Apple Pay is available on the device, create the payment request, and present the payment sheet based on that request.