Payment Initiation

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Good to know: payment initiation is responsible for bank and card payment support.
Implement invocation function in native module
In order to configure kevin. SDK payment initiation module, you will need to add configurations into the native platform specific components.
Android
KevinModule.kt
class KevinModule internal constructor(context: ReactApplicationContext?) :
    ReactContextBaseJavaModule(context) {
​
    private var callback: Callback? = null
​
    //...
​
    @ReactMethod
    fun openKevinBankPayment(state: String, callback: Callback) {
        try {
            val paymentConfiguration = PaymentSessionConfiguration.Builder(id)
                .setPaymentType(PaymentType.BANK)
                .setPreselectedCountry(KevinCountry.LITHUANIA)
                .build()
            val intent = Intent(currentActivity, PaymentSessionActivity::class.java)
            intent.putExtra(PaymentSessionContract.CONFIGURATION_KEY, paymentConfiguration)
            currentActivity?.startActivityForResult(intent, REQUEST_CODE_PAYMENT, null)
            this.callback = callback
        } catch (error: Exception) {
            callback("Failed", null)
        }
    }
    
    companion object {
        const val REQUEST_CODE_PAYMENT = 101
    }
}
iOS
KevinModule.swift
@objc(KevinModule)
class KevinModule: NSObject {
  
  private var callback: RCTResponseSenderBlock?
    
  //...
  
  @objc(openKevinBankPayment::)
  func openKevinBankPayment(id: String, callback: @escaping RCTResponseSenderBlock) -> Void {
    do {
      KevinPaymentSession.shared.delegate = self
      try KevinPaymentSession.shared.initiatePayment(
        configuration: KevinPaymentSessionConfiguration.Builder(
          paymentId: id
        )
          .setPreselectedCountry(.lithuania)
          .setSkipBankSelection(false)
          .build()
      )
      
      self.callback = callback
    } catch {
      callback(["Failed", nil])
    }
  }
}
Additionally add this function declaration to your native module bridge:
KevinModuleBridge.m
@interface RCT_EXTERN_MODULE(KevinModule, NSObject)
​
//...
​
RCT_EXTERN_METHOD(openKevinBankPayment:(NSString):(RCTResponseSenderBlock))
​
@end
For additional information on available SDK parameters, please refer to the corresponding platform-specific section of our documentation.
Handle SDK callbacks
To get results from kevin. SDK payment initiation flow you need to override platform-specific callbacks.
Android
Android handler module should conform to ActivityEventListener and should override onActivityResult(activity: Activity?, requestCode: Int, resultCode: Int, data: Intent?)
KevinModule.kt
class KevinModule internal constructor(context: ReactApplicationContext?) :
    ReactContextBaseJavaModule(context), ActivityEventListener {
​
    //...
​
    override fun onActivityResult(
        activity: Activity?,
        requestCode: Int,
        resultCode: Int,
        data: Intent?
    ) {
        if (requestCode == REQUEST_CODE_PAYMENT) {
            val result = data?.getParcelableExtra<SessionResult<PaymentSessionResult>>(PaymentSessionContract.RESULT_KEY)
            when (result) {
                is SessionResult.Success -> {
                    callback?.invoke(null, result.value.paymentId)
                }
                is SessionResult.Canceled -> {
                    callback?.invoke("Canceled", null)
                }
                is SessionResult.Failure -> {
                    callback?.invoke("Failed", null)
                }
            }
        }
    }
}
iOS
iOS handler module should conform to KevinPaymentSessionDelegate and override those methods:
KevinModule.swift
@objc(KevinModule)
class KevinModule: NSObject, KevinAccountLinkingSessionDelegate {
​
    //...
​
    func onKevinPaymentInitiationStarted(controller: UINavigationController) {
        let rootViewController = UIApplication.shared.windows.first!.rootViewController
        rootViewController?.present(controller, animated: true, completion: nil)
    }
    
    func onKevinPaymentCanceled(error: Error?) {
        callback?(["Failed", nil])
    }
    
    func onKevinPaymentSucceeded(paymentId: String) {
        callback?([nil, paymentId])
    }
}
Invoke payment initiation flow from React Native code 
App.js
const { 
  KevinModule 
} = NativeModules;
​
onKevinPaymentCallback = (error, paymentId) => {
  if (error) {
    console.error(`Error found! ${error}`);
  } else {
    console.log(`Payment id ${paymentId} returned`);
  }
}
​
const App: () => Node = () => {
  return (
    <SafeAreaView>
      <Button
        onPress={ () => KevinModule.openKevinBankPayment("ID", onKevinPaymentCallback) }
        title="Bank payment"
      />
    </SafeAreaView>
  );
};
Account Linking
Frame customisation
Last modified 3mo ago