Google and Apple Pay

Hi, we are planning to implement apple and google pay in our mobile app and are currently having some issues with doing this without using the @stripe/react-native-stripe package. We already have apple and google pay setup for our web applications so have the whole payment flow in place so all we really need to be able to do is expose the google and apple pay buttons, payment sheet and the functionality to check that they are available on the device.

Is there any documentation we can use to do this or does anyone have any advice on how to carry this out. We are currently using expo SDK 47

Any help will be greatly appreciated