Accept a payment with Revolut Pay

plugins {
    id("com.android.application")
}

android { ... }

dependencies {
  // ...

  // Stripe Android SDK
  implementation("com.stripe:stripe-android:21.19.0")
  // Include the financial connections SDK to support US bank account as a payment method
  implementation("com.stripe:financial-connections:21.19.0")
}

import com.stripe.android.PaymentConfiguration

class MyApp : Application() {
    override fun onCreate() {
        super.onCreate()
        PaymentConfiguration.init(
            applicationContext,
            
"pk_test_TYooMQauvdEDq54NiTphI7jx"
        )
    }
}

curl https://api.stripe.com/v1/payment_intents \
  -u "
sk_test_BQokikJOvBiI2HlWgH4olfQ2
:" \
  -d amount=6000 \
  -d currency=gbp \
  -d "payment_method_types[]"=revolut_pay \
  --data-urlencode return_url="payments-example://stripe-redirect"

class CheckoutActivity : AppCompatActivity() {

  private lateinit var paymentIntentClientSecret: String

  override fun onCreate(savedInstanceState: Bundle?) {
      super.onCreate(savedInstanceState)
      // ...
      startCheckout()
  }

  private fun startCheckout() {
      // Request a PaymentIntent from your server and store its client secret in paymentIntentClientSecret
      // Click View full sample to see a complete implementation
  }
}

class CheckoutActivity : AppCompatActivity() {

    // ...

    private val paymentLauncher: PaymentLauncher by lazy {
        val paymentConfiguration = PaymentConfiguration.getInstance(applicationContext)
        PaymentLauncher.create(
            activity = this,
            publishableKey = paymentConfiguration.publishableKey,
            stripeAccountId = paymentConfiguration.stripeAccountId,
            callback = ::onPaymentResult,
        )
    }

    // …

    private fun startCheckout() {
        // ...

        val revolutPayParams = PaymentMethodCreateParams.createRevolutPay()

        val confirmParams = ConfirmPaymentIntentParams
            .createWithPaymentMethodCreateParams(
                paymentMethodCreateParams = revolutPayParams,
                clientSecret = paymentIntentClientSecret,
                // Add a mandate ID or MandateDataParams if you
                // want to set this up for future use…
            )

        paymentLauncher.confirm(confirmParams)
    }

    private fun onPaymentResult(paymentResult: PaymentResult) {
        // Handle the payment result…
    }
}