PaymentRequest Type

[klase]

The object returned by canMakePayment only allows us to detect if the paymentRequest is an Apple Pay request. If the request is not Apple Pay, how can we determine the type (Google Pay, Microsoft or browser saved card)?

[hofman-stripe]

@klase sorry for the delayed response. Currently if not Apple Pay, Stripe's PaymentRequest object simply wraps the browser's PaymentRequest API. Because browsers have strict rate limiting in place to prevent fingerprinting, we can only determine if the browser has any of Google Pay or basic card (including "Microsoft Pay") configured, but not which one. This is something we're working with Google and standards groups to improve.

See https://chromestatus.com/feature/6014793655779328

[klase]

@hofman-stripe If you are able to determine that the source is Google Pay, how is this exposed in stripe-js? We use the "applePay" flag to customise the payment button according to Apple's guidelines, so it would be really helpful from a UX standpoint to also have this ability for Google Pay while we wait for the standards to improve.

[hofman-stripe]

Sorry maybe I wasn't clear. We are not currently able to differentiate between GPay and basic card using the browser PaymentRequest API, only that "at least one" is available. That's also the reason the PaymentRequestButton doesn't have any dedicated branding for GPay. We are looking at different ways to improve this situation, but that's unfortunately a limitation of browser APIs.