Oxxo payment

[arekkubaczkowski]

resolves #27

[thorsten-stripe]

@bg-stripe @michelleb-stripe @mshafrir-stripe I’m having some issues with OXXO on Android:

1. the next action type enum in the Android SDK is display_oxxo_details (https://github.com/stripe/stripe-android/blob/master/stripe/src/main/java/com/stripe/android/model/StripeIntent.kt#L63) however in the API it is oxxo_dislay_details (https://stripe.com/docs/api/payment_intents/object#payment_intent_object-next_action-oxxo_display_details). Not sure if this is a recent change. I’d be happy to open a PR on stripe-android android, but there is another issue:
2. The iOS SDK automatically displays the hosted_voucher_url in the webview and when closing the webview maps the requires_action status to a succeeded handler status (https://github.com/stripe/stripe-ios/blob/master/Stripe/STPPaymentHandler.swift#L1197-L1205). While the docs claim that the Android SDK does the same (https://stripe.com/docs/payments/oxxo/accept-a-payment#android-submit-payment) that’s actually not true, and instead comes back with StripeIntent.Status.RequiresAction in stripe.onPaymentResult. Is that intentional? Are folks meant to display the voucher themselves? But if so, the behavior differs from the stripe-ios. Any idea what to do here?

[thorsten-stripe]

Android issue fixed here: stripe/stripe-android#3559