feat: support for Bacs debit payments

[khzouroussama]

Summary

This PR adds support for bacs debit payments

References:

• iOS example: BacsDebitViewController
• Android example: BacsDebitPaymentMethodActivity

Motivation

The confirmPayment function was returning This paymentMethodType is not supported yet for bacs payments, this PR adds the bindings for bacs payments for the react native sdk

Testing

• I tested this manually
• I added automated tests

Note: I wasn't able to test if the payment was successful, as I kept getting this error
"Your account is not configured to allow passing 'mandate_data' directly when confirming PaymentIntents for Bacs Direct Debits. Please see https://stripe.com/docs/payments/payment-methods/bacs-debit for more information or contact [bacs-debits@stripe.com](mailto:bacs-debits@stripe.com)."
According to support Bacs mandate collection will only happen on a live payment

Documentation

Select one:

• I have added relevant documentation for my changes.
• This PR does not result in any developer-facing changes.

[CLAassistant]

All committers have signed the CLA.

[charliecruzan-stripe]

Thanks for the PR! I need to find out if accountNumber and sortNumber are safe values to transmit across the RN bridge before we add support for this

[khzouroussama]

@charliecruzan-stripe Thank you, Is this related to security concerns?

[khzouroussama]

@charliecruzan-stripe any updates on this?

[andrewoons]

hi @charliecruzan-stripe , would you have an update here for us in terms of timelines?

[andrewoons]

hi @charliecruzan-stripe , would you have an estimated timeline here?

[andrewoons]

@charliecruzan-stripe any news here?

[charliecruzan-stripe]

I believe that, although not required, it would be best for us to encrypt this information before transferring it over the Bridge

[khzouroussama]

@charliecruzan-stripe Could you please provide advice on what is the best way to do this? Also, does the new architecture remove the necessity for this?

[charliecruzan-stripe]

The new architecture would remove the necessity for this, so we should wait for that migration before working on this feature

[mayfairr]

@charliecruzan-stripe Any idea the type of timeframes for this?

[charliecruzan-stripe]

not at the moment, the new architecture is still very experimental

[hwildwood]

@charliecruzan-stripe Is there anything I can do to help get this over the line? If the new architecture isn't ready I'm happy to try and add encryption to this PR if that helps.

[hwildwood]

Any updates on this @charliecruzan-stripe ?

[hwildwood]

@khzouroussama Did you end up building a fork of the SDK and using that?

@charliecruzan-stripe The radio silence is a bit concerning, I appreciate you're probably busy and have lots on your plate but an update on why this can't be merged would be really helpful.

[khzouroussama]

@hwildwood It have been a while since I worked on this, but you can build your own package to support this (i suggest using Expo Modules since they support the new arch out of the box), or patch your existing package using the changes from this PR (although I am not sure about the security concern that @charliecruzan-stripe mentioned).

Also note that implementing the BACS payment will not be straight forward and you will have to contact stripe support to enable that for your account, and review your implementation.

https://github.com/stripe/stripe-ios/blob/7b8b320beeb54023b6c8680097a5ecfc2067f524/Example/Non-Card%20Payment%20Examples/Non-Card%20Payment%20Examples/BacsDebitViewController.swift#L14

[hwildwood]

@khzouroussama Thanks for your reply, that's really helpful! I hadn't appreciated that using the feature in this PR would still require sign off from Stripe but that makes sense.