PayTabs SDK makes the integration with the PayTabs payment gateway very easy by providing a ready-made payment screen that handles the card entry and, billing & shipping information and completes the missing details.


This article is dedicated to walking you through how to initiate the payment/request payload using the configuration options and parameters that have already been clarified in the previous step, "Step 2 - Configure the integration method".


After making sure of configuring this SDK as you wish, you will need to import the PaymentSDK in your code first to start, as shown below:

`

import 'package:flutter_paytabs_bridge/BaseBillingShippingInfo.dart';
import 'package:flutter_paytabs_bridge/PaymentSdkConfigurationDetails.dart';
import 'package:flutter_paytabs_bridge/PaymentSdkLocale.dart';
import 'package:flutter_paytabs_bridge/PaymentSdkTokenFormat.dart';
import 'package:flutter_paytabs_bridge/PaymentSdkTokeniseType.dart';
import 'package:flutter_paytabs_bridge/flutter_paytabs_bridge.dart';
import 'package:flutter_paytabs_bridge/IOSThemeConfiguration.dart';
import 'package:flutter_paytabs_bridge/PaymentSdkTransactionClass.dart';
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Implementing this option will enable you to initiate payments targeted to be paid using the ApplePay payment method. To be able to do this, please follow the below instructions:


  1. First, start by following the guide steps to configure ApplePay, to know how you can configure ApplePay with PayTabs, and passing the "merchantName" and "merchantApplePayIndentifier" parameters within your PaymentSdkConfigurationDetails, as shown below.  
    merchantName: "merchant name",
    merchantApplePayIndentifier: "merchant.com.bundleID",


  2. Make sure you import PaymentSdkConfigurationDetails class.


  3. Configure the billing & shipping information for this payment, noting that the shipping information is optional. If you decide to skip this step, ApplePay will require this information from your customers' wallets, which should be updated accordingly. To know more about this, please check our 3.1 Flutter SDK | Manage Shipping and Billing details and 2.1 Flutter SDK | Configuration Options & Parameters solution articles. 

    var billingDetails = new BillingDetails(
        "billing name", 
        "billing email", 
        "billing phone",
            "address line", 
            "country", 
            "city", 
            "state", 
            "zip code"
    );
            
    var shippingDetails = new ShippingDetails(
        "shipping name", 
         "shipping email", 
         "shipping phone",
         "address line", 
         "country", 
         "city", 
         "state", 
         "zip code"
    );
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  4. Then create an object from PaymentSdkConfigurationDetails and fill it out with your credentials and payment details, You should know that it's required to pass the merchant name and merchant identifier parameters. To know more about what is the exact values that should be passed here, please check our 2.1 Flutter SDK | Configuration Options & Parameters and 2.2 Flutter SDK | The PaymentSdkConfigurationDetails Object solution articles.

    var configuration = PaymentSdkConfigurationDetails(
            profileId: "profile id",
            serverKey: "your server key",
            clientKey: "your client key",
            cartId: "cart id",
            cartDescription: "cart desc",
            merchantName: "merchant name",
            screentTitle: "Pay with Card",
            billingDetails: billingDetails,
            shippingDetails: shippingDetails,
            locale: PaymentSdkLocale.EN, //PaymentSdkLocale.AR or PaymentSdkLocale.DEFAULT 
            amount: "amount in double",
            currencyCode: "Currency code",
            merchantCountryCode: "2 chars iso country code",
            merchantName: "merchant name",
            merchantApplePayIndentifier: "merchant.com.bundleID",
    );
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  5. As an additional step, you can simplify ApplePay validation on all users' billing information to validate only the name, phone, and email by passing the simplifyApplePayValidation configuration parameter with true.

    configuration.simplifyApplePayValidation = true;
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  6. Only then you will be ready to start/initiate the payment by passing your PaymentSdkConfigurationDetails to the startApplePayPayment function in which the callback event will handle/alter the payment response. To know more about this please check our 2.2 Flutter SDK | The PaymentSdkConfigurationDetails Object and Step 5 - Flutter SDK | Handle the payment response solution articles. 

    FlutterPaytabsBridge.startApplePayPayment(configuration, (event) {
          setState(() {
            if (event["status"] == "success") {
              // Handle transaction details here.
              var transactionDetails = event["data"];
              print(transactionDetails);
            } else if (event["status"] == "error") {
              // Handle error here.
            } else if (event["status"] == "event") {
              // Handle events here.
            }
          });
        });
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⌂ To get familiar with the whole process and the other steps, kindly navigate to our "The Flutter (Bridge) SDK Integration Manual" solution article. 

 And to navigate to the previous step in the integration process "Step 2 - Configure the integration method" click here

 And to get familiar with the rest of the steps regarding the current step "Step 3 - Initiating the payment" click here.

⇨ Or you can navigate to the next step in the integration process "Step 4 - Accepting the payment" kindly click here.