4.x not possible to get list if payment methods (list of nonces)

General information

• SDK/Library version: 4.7.0 / 4.8.0
• Environment: any
• Android Version and Device: any
• Braintree dependencies:

    braintreeVersion = "4.8.0"
// Braintree
    // https://github.com/braintree/braintree_android/releases

    // https://github.com/braintree/braintree-android-drop-in/releases
    implementation "com.braintreepayments.api:drop-in:6.0.0-beta2"

    // to offer card payments
    implementation "com.braintreepayments.api:card:$braintreeVersion"
    // to collect device data
    implementation "com.braintreepayments.api:data-collector:$braintreeVersion"
    // to offer PayPal
    implementation "com.braintreepayments.api:paypal:$braintreeVersion"
    // to offer local payments
    implementation "com.braintreepayments.api:local-payment:$braintreeVersion"
    // to offer Google Pay
    implementation "com.braintreepayments.api:google-pay:$braintreeVersion"
    // to perform 3DS verification
    // https://developer.paypal.com/braintree/docs/guides/3d-secure/client-side/android/v4
    implementation "com.braintreepayments.api:three-d-secure:$braintreeVersion"

Issue description

I need to get a list of all available payment methods for user to show custom payment list. In v3 we uses PaymentMethodNoncesUpdatedListener but with v4 methods to get list DropInClient.getPaymentMethodNonces is private. PaymentMethodClient is private too, so how I should get list of nonces?

[mtrakal]

Hi @sarahkoop for me/our company (as the author of this issue) should be fine when you create these two methods public. It would be nice and solve our issues with the integration of v4 😍🙏. We use Drop-in, so I’m ok with this quick-fix solution.

[sarahkoop]

Hi @dlitvik and @josemifever - Thanks for your patience on this. We are trying to determine the best approach to provide this functionality in a way that is compatible with our existing SDKs and that meets your needs.

Like Steven mentioned previously, this functionality was moved to our Braintree Android Drop-in SDK and made non-public, since it is used primarily by our internal SDK. It is my understanding that you need the ability to fetch vaulted payment methods and delete vaulted payment methods, correct?

Would adding methods to DropInClient to invoke PaymentMethodClient.getPaymentMethodNonces and PaymentMethodClient.deletePaymentMethod be an acceptable solution for your integrations? This would require you to pull in the com.braintreepayments.api:drop-in library and instantiate a DropInClient, in addition to the using the core SDK libraries.