How does Walgreen's Reward card use NFC on iOS via Apple Pay?

I was able to find documentation: Every Apple Wallet "pass" has a pass.json file in which developers store information that Apple Wallet will read so to better provide User relevance. read more

I was able to find documentation: Every Apple Wallet "pass" has a pass.json file in which developers store information that Apple Wallet will read so to better provide User relevance. read more

At wwdc, Apple announced that a total of 6 retailers; Walgreens, Kohl’s, Coca-Cola, Dunkin’ Donuts, Panera Bread, and Wegmans, would have NFC enabled loyalty cards that integrated with Apple Pay upon the release of Apple Wallet. read more

Walgreens announced this morning that support for accepting its rewards card in stores through Apple Pay is now live. Loyalty cards have long been supported using QR cards with scannable barcodes, but iOS 9 enabled the ability to use loyalty cards with NFC just like Apple Pay payments. read more