Card Loyalty Point Payment

The 2C2P PGW SDK allows merchants to accept card loyalty point payments.

📘

API Method

PGW SDK API Interface

🚧

References

SDK Payment Classes
SDK Payment Enums


1. Generate Payment Token

To prepare a payment token request, refer to the required parameters below.

📘

Payment Token API

Refer to: Payment Token API

{
    "merchantID": "JT04",
    "invoiceNo": "1595219400",
    "description": "2 days 1 night hotel room",
    "amount": 10.0,
    "currencyCode": "THB",
    "nonceStr": "a8092512-b144-41b0-8284-568bb5e9264c",
    "paymentChannel": ["GCARD"],
    "request3DS": "Y",
    "loyaltyPoints": [{
        "providerID": "DGC",
        "externalMerchantId": "2C2P-Outlet",
        "accountNo": "501105",
        "redeemAmount": 1.00,
        "rewards": [{
            "quantity": 1.00
        }]
    }]
}

2. Receive Payment Token Response

To receive a payment token response, refer to the sample payment token response below. The response will contain the payment token ID which must be passed to the merchant application.

String paymentToken = "roZG9I1hk/GYjNt+BYPYbxQtKElbZDs9M5cXuEbE+Z0QTr/yUcl1oG7t0AGoOJlBhzeyBtf5mQi1UqGbjC66E85S4m63CfV/awwNbbLbkxsvfgzn0KSv7JzH3gcs/OIL";
val paymentToken = "roZG9I1hk/GYjNt+BYPYbxQtKElbZDs9M5cXuEbE+Z0QTr/yUcl1oG7t0AGoOJlBhzeyBtf5mQi1UqGbjC66E85S4m63CfV/awwNbbLbkxsvfgzn0KSv7JzH3gcs/OIL"
NSString *paymentToken = @"roZG9I1hk/GYjNt+BYPYbxQtKElbZDs9M5cXuEbE+Z0QTr/yUcl1oG7t0AGoOJlBhzeyBtf5mQi1UqGbjC66E85S4m63CfV/awwNbbLbkxsvfgzn0KSv7JzH3gcs/OIL";
let paymentToken: String = "roZG9I1hk/GYjNt+BYPYbxQtKElbZDs9M5cXuEbE+Z0QTr/yUcl1oG7t0AGoOJlBhzeyBtf5mQi1UqGbjC66E85S4m63CfV/awwNbbLbkxsvfgzn0KSv7JzH3gcs/OIL"
String paymentToken = 'roZG9I1hk/GYjNt+BYPYbxQtKElbZDs9M5cXuEbE+Z0QTr/yUcl1oG7t0AGoOJlBhzeyBtf5mQi1UqGbjC66E85S4m63CfV/awwNbbLbkxsvfgzn0KSv7JzH3gcs/OIL';
let paymentToken = 'roZG9I1hk/GYjNt+BYPYbxQtKElbZDs9M5cXuEbE+Z0QTr/yUcl1oG7t0AGoOJlBhzeyBtf5mQi1UqGbjC66E85S4m63CfV/awwNbbLbkxsvfgzn0KSv7JzH3gcs/OIL';

3. Construct Loyalty Point Payment Request

To prepare a payment request, refer to the sample code below.

📘

Payment Request Parameters

Refer to: Payment Request API Parameters

📘

Loyalty Point Information API

Refer to: Loyalty Point Information API

🚧

Payment Channel Matrix

To see supported card options, Refer to below

Card Loyalty

PaymentCode paymentCode = new PaymentCode("CC");
 
ArrayList<LoyaltyPoint> loyaltyPoints = new ArrayList<>();
ArrayList<LoyaltyPointReward> rewards = new ArrayList<>();
 
//Loyalty point reward info can be retrieve from Loyalty Point Info API
LoyaltyPointReward reward = new LoyaltyPointReward();
reward.setId("1792e2b5-8b41-4712-9b44-4c857ce90c3e");
reward.setQuantity(1);
rewards.add(reward);
 
//Loyalty point info can be retrieve from Loyalty Point Info API
LoyaltyPoint loyaltyPoint = new LoyaltyPoint();
loyaltyPoint.setProviderId("DGC");
loyaltyPoint.setRedeemAmount(1.00);
loyaltyPoint.setRewards(rewards);
loyaltyPoints.add(loyaltyPoint);
 
PaymentRequest paymentRequest = new LoyaltyPointPaymentBuilder(paymentCode)
                                .setCardNo("4111111111111111")
                                .setExpiryMonth(12)
                                .setExpiryYear(2026)
                                .setSecurityCode("123")
                                .setLoyaltyPoints(loyaltyPoints)
                                .build();    
val paymentCode = PaymentCode("CC")
 
val loyaltyPoints = arrayListOf<LoyaltyPoint>()
val rewards = arrayListOf<LoyaltyPointReward>()
 
//Loyalty point reward info can be retrieve from Loyalty Point Info API
val reward = LoyaltyPointReward().apply {
       id = "1792e2b5-8b41-4712-9b44-4c857ce90c3e"
       quantity = 1.0
}
rewards.add(reward)
 
//Loyalty point info can be retrieve from Loyalty Point Info API
val loyaltyPoint = LoyaltyPoint().apply {
       providerId = "DGC"
       redeemAmount = 1.00
       this.rewards = rewards
}
loyaltyPoints.add(loyaltyPoint)
 
val paymentRequest = LoyaltyPointPaymentBuilder(paymentCode).apply {
       cardNo("4111111111111111")
       expiryMonth(12)
       expiryYear(2026)
       securityCode("123")
       loyaltyPoints(loyaltyPoints)
}.build()
PaymentCode *paymentCode = [[PaymentCode alloc] initWithChannelCode: @"CC"];
     
NSMutableArray<LoyaltyPoint *> *loyaltyPoints = [[NSMutableArray alloc] init];
NSMutableArray<LoyaltyPointReward *> *rewards = [[NSMutableArray alloc] init];
     
//Loyalty point reward info can be retrieve from Loyalty Point Info API
LoyaltyPointReward *reward = [[LoyaltyPointReward alloc] init];
reward.id = @"1792e2b5-8b41-4712-9b44-4c857ce90c3e";
reward.quantity = 1.00;
[rewards addObject: reward];
 
//Loyalty point info can be retrieve from Loyalty Point Info API
LoyaltyPoint *loyaltyPoint = [[LoyaltyPoint alloc] init];
loyaltyPoint.providerId = @"DGC";
loyaltyPoint.redeemAmount = 1.00;
loyaltyPoint.rewards = rewards;
[loyaltyPoints addObject: loyaltyPoint];
           
PaymentRequest *paymentRequest = [[[[[[[[LoyaltyPointPaymentBuilder alloc] initWithPaymentCode: paymentCode]
                                         cardNo: @"4111111111111111"]
                                         expiryMonth: 11]
                                         expiryYear: 2026]
                                         securityCode: @"123"]
                                         loyaltyPoints: loyaltyPoints]
                                         build];
let paymentCode: PaymentCode = PaymentCode(channelCode: "CC")
         
var loyaltyPoints: [LoyaltyPoint] = [LoyaltyPoint]()
var rewards: [LoyaltyPointReward] = [LoyaltyPointReward]()
         
//Loyalty point reward info can be retrieve from Loyalty Point Info API
let reward: LoyaltyPointReward = LoyaltyPointReward()
reward.id = "1792e2b5-8b41-4712-9b44-4c857ce90c3e"
reward.quantity = 1.00
rewards.append(reward)
         
//Loyalty point info can be retrieve from Loyalty Point Info API
let loyaltyPoint: LoyaltyPoint = LoyaltyPoint()
loyaltyPoint.providerId = "DGC"
loyaltyPoint.redeemAmount = 1.00
loyaltyPoint.rewards = rewards
loyaltyPoints.append(loyaltyPoint)
         
let paymentRequest: PaymentRequest = LoyaltyPointPaymentBuilder(paymentCode: paymentCode)
                                     .cardNo("4111111111111111")
                                     .expiryMonth(11)
                                     .expiryYear(2026)
                                     .securityCode("123")
                                     .loyaltyPoints(loyaltyPoints)
                                     .build()    
Map<String, dynamic> paymentCode = {
   'channelCode': 'CC'
};
 
List loyaltyPoints = [];
List rewards = [];
 
//Loyalty point reward info can be retrieve from Loyalty Point Info API
Map<String, dynamic> reward = {
   'id': '1792e2b5-8b41-4712-9b44-4c857ce90c3e',
   'quantity': 1.00
};
rewards.add(reward);
 
//Loyalty point info can be retrieve from Loyalty Point Info API
Map<String, dynamic> loyaltyPoint = {
   'providerId': 'DGC',
   'redeemAmount': 1.00,
   'rewards': rewards
};
loyaltyPoints.add(loyaltyPoint);
 
Map<String, dynamic> paymentRequest = {
   'cardNo': '4111111111111111',
   'expiryMonth': 12,
   'expiryYear': 2026,
   'securityCode': '123',
   'loyaltyPoints': loyaltyPoints
};
let paymentCode = {
      'channelCode': 'CC'
};
   
let loyaltyPoints = [];
let rewards = [];
   
//Loyalty point reward info can be retrieve from Loyalty Point Info API
let reward = {
      'id': '1792e2b5-8b41-4712-9b44-4c857ce90c3e',
      'quantity': 1.00
};
rewards.push(reward);
   
//Loyalty point info can be retrieve from Loyalty Point Info API
let loyaltyPoint = {
      'providerId': 'DGC',
      'redeemAmount': 1.00,
      'rewards': rewards
};
loyaltyPoints.push(loyaltyPoint);
   
let paymentRequest = {
      'cardNo': '4111111111111111',
      'expiryMonth': 12,
      'expiryYear': 2026,
      'securityCode': '123',
      'loyaltyPoints': loyaltyPoints
};

4. Construct Transaction Request

To prepare a transaction request, refer to the parameters and sample code below.

📘

Transaction Request API Parameters

Refer to: Do Payment Request API Parameter

TransactionResultRequest transactionResultRequest = new TransactionResultRequestBuilder(paymentToken)
                                                    .with(paymentRequest)
                                                    .build();
val transactionResultRequest = TransactionResultRequestBuilder(paymentToken).apply {
       with(paymentRequest)
}.build()
TransactionResultRequest *transactionResultRequest = [[[[TransactionResultRequestBuilder alloc] initWithPaymentToken: paymentToken]
                                                         withPaymentRequest: paymentRequest]
                                                         build];)
let transactionResultRequest: TransactionResultRequest = TransactionResultRequestBuilder(paymentToken: paymentToken)
                                                         .with(paymentRequest)
                                                         .build()
Map<String, dynamic> transactionResultRequest = {
   'paymentToken': paymentToken,
   'payment': {
      'code': {
        ...paymentCode
      },
      'data': {
        ...paymentRequest
      }
   }
};
let transactionResultRequest = {
   'paymentToken': paymentToken,
   'payment': {
      'code': {
         ...paymentCode
      },
      'data': {
         ...paymentRequest
      }
   }
};

5. Execute Payment Request

To receive a transaction request response, refer to the parameters below.

📘

Transaction Response API Parameters

Refer to: Do Payment Response API Parameter

🚧

References

Response Code
To view payment process flows based on response code, refer to: Payment Flow Response Codes

PGWSDK.getInstance().proceedTransaction(transactionResultRequest, new APIResponseCallback<TransactionResultResponse>() {
    
     @Override
     public void onResponse(TransactionResultResponse response) {
    
          if (response.getResponseCode().equals(APIResponseCode.TransactionAuthenticateRedirect) || response.getResponseCode().equals(APIResponseCode.TransactionAuthenticateFullRedirect)) {
    
                String redirectUrl = response.getData(); //Open WebView
          } else if (response.getResponseCode().equals(APIResponseCode.TransactionCompleted)) {
    
               //Inquiry payment result by using invoice no.
          } else {
    
               //Get error response and display error.
          }
     }
    
     @Override
     public void onFailure(Throwable error) {
    
          //Get error response and display error.
     }
});
PGWSDK.getInstance().proceedTransaction(transactionResultRequest, object : APIResponseCallback<TransactionResultResponse> {
  
       override fun onResponse(response: TransactionResultResponse) {
  
              if (response.responseCode == APIResponseCode.TransactionAuthenticateRedirect || response.responseCode == APIResponseCode.TransactionAuthenticateFullRedirect) {
  
                     val redirectUrl = response.data //Open WebView
              } else if (response.responseCode == APIResponseCode.TransactionCompleted) {
  
                     //Inquiry payment result by using invoice no.
              } else {
  
                     //Get error response and display error.
              }
       }
  
       override fun onFailure(error: Throwable) {
  
              //Get error response and display error.
       }
})
[[PGWSDK shared] proceedTransactionWithTransactionResultRequest: transactionResultRequest response: ^(TransactionResultResponse * _Nonnull response) {
              
     if([response.responseCode isEqualToString: APIResponseCode.TransactionAuthenticateRedirect] || [response.responseCode isEqualToString: APIResponseCode.TransactionAuthenticateFullRedirect]) {
                  
          NSString *redirectUrl = response.data; //Open WebView
     } else if([response.responseCode isEqualToString: APIResponseCode.TransactionCompleted]) {
                  
          //Inquiry payment result by using invoice no.
     } else {
                  
          //Get error response and display error.
     }
} failure: ^(NSError * _Nonnull error) {
              
     //Get error response and display error.
}];
PGWSDK.shared.proceedTransaction(transactionResultRequest: transactionResultRequest, { (response: TransactionResultResponse) in
      
     if response.responseCode == APIResponseCode.TransactionAuthenticateRedirect || response.responseCode == APIResponseCode.TransactionAuthenticateFullRedirect {
                   
           let redirectUrl: String = response.data //Open WebView
     } else if response.responseCode == APIResponseCode.TransactionCompleted {
                   
           //Inquiry payment result by using invoice no.
     } else {
                   
           //Get error response and display error.
     }
}) { (error: NSError) in
               
     //Get error response and display error.
}
PGWSDK().proceedTransaction(transactionResultRequest, (response) {
 
   if (response['responseCode'] == APIResponseCode.transactionAuthenticateRedirect || response['responseCode'] == APIResponseCode.transactionAuthenticateFullRedirect) {
 
       String redirectUrl = response['data']; //Open WebView
   } else if (response['responseCode'] == APIResponseCode.transactionCompleted) {
 
       //Inquiry payment result by using invoice no.
   } else {
 
       //Get error response and display error.
   }
}, (error) {
 
    //Get error response and display error.
});
await RTNPGW.proceedTransaction(JSON.stringify(transactionResultRequest)).then((response: string) => {
  
    let transactionResultResponse = JSON.parse(response);
  
    if (transactionResultResponse?.responseCode == APIResponseCode.transactionAuthenticateRedirect || transactionResultResponse?.responseCode == APIResponseCode.transactionAuthenticateFullRedirect) {
  
        let redirectUrl = transactionResultResponse?.data; //Open WebView
    } else if (transactionResultResponse?.responseCode == APIResponseCode.transactionCompleted) {
  
        //Inquiry payment result by using invoice no.
    } else {
  
        //Get error response and display error.
    }
}).catch ((error: Error) => {
  
    //Get error response and display error
});

👍

Callback for PGW Payment Authentication

Refer to: Handle PGW Payment Authentication


6. Initiate Transaction Status Inquiry

To retrieve transaction details and status, merchants must initiate the Transaction Status Inquiry API. Refer to the sample code below.

📘

Transaction Status Inquiry API

Refer to: Transaction Status Inquiry API


Full Sample Code

The following sample code demonstrates requests and parameters for each step of the process.

//Step 1: Generate payment token.
String paymentToken = "roZG9I1hk/GYjNt+BYPYbxQtKElbZDs9M5cXuEbE+Z0QTr/yUcl1oG7t0AGoOJlBhzeyBtf5mQi1UqGbjC66E85S4m63CfV/awwNbbLbkxsvfgzn0KSv7JzH3gcs/OIL";
    
//Step 2: Construct loyalty point payment request.
PaymentCode paymentCode = new PaymentCode("CC");
 
ArrayList<LoyaltyPoint> loyaltyPoints = new ArrayList<>();
ArrayList<LoyaltyPointReward> rewards = new ArrayList<>();
 
//Loyalty point reward info can be retrieve from Loyalty Point Info API
LoyaltyPointReward reward = new LoyaltyPointReward();
reward.setId("1792e2b5-8b41-4712-9b44-4c857ce90c3e");
reward.setQuantity(1);
rewards.add(reward);
 
//Loyalty point info can be retrieve from Loyalty Point Info API
LoyaltyPoint loyaltyPoint = new LoyaltyPoint();
loyaltyPoint.setProviderId("DGC");
loyaltyPoint.setRedeemAmount(1.00);
loyaltyPoint.setRewards(rewards);
loyaltyPoints.add(loyaltyPoint);
 
PaymentRequest paymentRequest = new LoyaltyPointPaymentBuilder(paymentCode)
                                .setCardNo("4111111111111111")
                                .setExpiryMonth(12)
                                .setExpiryYear(2026)
                                .setSecurityCode("123")
                                .setLoyaltyPoints(loyaltyPoints)
                                .build();    
 
//Step 3: Construct transaction request.
TransactionResultRequest transactionResultRequest = new TransactionResultRequestBuilder(paymentToken)
                                                    .with(paymentRequest)
                                                    .build();
    
//Step 4: Execute payment request.
PGWSDK.getInstance().proceedTransaction(transactionResultRequest, new APIResponseCallback<TransactionResultResponse>() {
    
     @Override
     public void onResponse(TransactionResultResponse response) {
    
          if (response.getResponseCode().equals(APIResponseCode.TransactionAuthenticateRedirect) || response.getResponseCode().equals(APIResponseCode.TransactionAuthenticateFullRedirect)) {
    
                String redirectUrl = response.getData(); //Open WebView
          } else if (response.getResponseCode().equals(APIResponseCode.TransactionCompleted)) {
    
               //Inquiry payment result by using invoice no.
          } else {
    
               //Get error response and display error.
          }
     }
    
     @Override
     public void onFailure(Throwable error) {
    
          //Get error response and display error.
     }
});
//Step 1: Generate payment token.
val paymentToken = "roZG9I1hk/GYjNt+BYPYbxQtKElbZDs9M5cXuEbE+Z0QTr/yUcl1oG7t0AGoOJlBhzeyBtf5mQi1UqGbjC66E85S4m63CfV/awwNbbLbkxsvfgzn0KSv7JzH3gcs/OIL"
   
//Step 2: Construct loyalty point payment request.
val paymentCode = PaymentCode("CC")
 
val loyaltyPoints = arrayListOf<LoyaltyPoint>()
val rewards = arrayListOf<LoyaltyPointReward>()
 
//Loyalty point reward info can be retrieve from Loyalty Point Info API
val reward = LoyaltyPointReward().apply {
       id = "1792e2b5-8b41-4712-9b44-4c857ce90c3e"
       quantity = 1.0
}
rewards.add(reward)
 
//Loyalty point info can be retrieve from Loyalty Point Info API
val loyaltyPoint = LoyaltyPoint().apply {
       providerId = "DGC"
       redeemAmount = 1.00
       this.rewards = rewards
}
loyaltyPoints.add(loyaltyPoint)
 
val paymentRequest = LoyaltyPointPaymentBuilder(paymentCode).apply {
       cardNo("4111111111111111")
       expiryMonth(12)
       expiryYear(2026)
       securityCode("123")
       loyaltyPoints(loyaltyPoints)
}.build()
 
//Step 3: Construct transaction request.
val transactionResultRequest = TransactionResultRequestBuilder(paymentToken).apply {
       with(paymentRequest)
}.build()
 
//Step 4: Execute payment request.
PGWSDK.getInstance().proceedTransaction(transactionResultRequest, object : APIResponseCallback<TransactionResultResponse> {
  
       override fun onResponse(response: TransactionResultResponse) {
  
              if (response.responseCode == APIResponseCode.TransactionAuthenticateRedirect || response.responseCode == APIResponseCode.TransactionAuthenticateFullRedirect) {
  
                     val redirectUrl = response.data //Open WebView
              } else if (response.responseCode == APIResponseCode.TransactionCompleted) {
  
                     //Inquiry payment result by using invoice no.
              } else {
  
                     //Get error response and display error.
              }
       }
  
       override fun onFailure(error: Throwable) {
  
              //Get error response and display error.
       }
})
//Step 1: Generate payment token.
NSString *paymentToken = @"roZG9I1hk/GYjNt+BYPYbxQtKElbZDs9M5cXuEbE+Z0QTr/yUcl1oG7t0AGoOJlBhzeyBtf5mQi1UqGbjC66E85S4m63CfV/awwNbbLbkxsvfgzn0KSv7JzH3gcs/OIL";
   
//Step 2: Construct loyalty point payment request.
PaymentCode *paymentCode = [[PaymentCode alloc] initWithChannelCode: @"CC"];
     
NSMutableArray<LoyaltyPoint *> *loyaltyPoints = [[NSMutableArray alloc] init];
NSMutableArray<LoyaltyPointReward *> *rewards = [[NSMutableArray alloc] init];
     
//Loyalty point reward info can be retrieve from Loyalty Point Info API
LoyaltyPointReward *reward = [[LoyaltyPointReward alloc] init];
reward.id = @"1792e2b5-8b41-4712-9b44-4c857ce90c3e";
reward.quantity = 1.00;
[rewards addObject: reward];
 
//Loyalty point info can be retrieve from Loyalty Point Info API
LoyaltyPoint *loyaltyPoint = [[LoyaltyPoint alloc] init];
loyaltyPoint.providerId = @"DGC";
loyaltyPoint.redeemAmount = 1.00;
loyaltyPoint.rewards = rewards;
[loyaltyPoints addObject: loyaltyPoint];
           
PaymentRequest *paymentRequest = [[[[[[[[LoyaltyPointPaymentBuilder alloc] initWithPaymentCode: paymentCode]
                                         cardNo: @"4111111111111111"]
                                         expiryMonth: 11]
                                         expiryYear: 2026]
                                         securityCode: @"123"]
                                         loyaltyPoints: loyaltyPoints]
                                         build];
 
//Step 3: Construct transaction request. 
TransactionResultRequest *transactionResultRequest = [[[[TransactionResultRequestBuilder alloc] initWithPaymentToken: paymentToken]
                                                         withPaymentRequest: paymentRequest]
                                                         build];
       
//Step 4: Execute payment request.
[[PGWSDK shared] proceedTransactionWithTransactionResultRequest: transactionResultRequest response: ^(TransactionResultResponse * _Nonnull response) {
              
     if([response.responseCode isEqualToString: APIResponseCode.TransactionAuthenticateRedirect] || [response.responseCode isEqualToString: APIResponseCode.TransactionAuthenticateFullRedirect]) {
                  
          NSString *redirectUrl = response.data; //Open WebView
     } else if([response.responseCode isEqualToString: APIResponseCode.TransactionCompleted]) {
                  
          //Inquiry payment result by using invoice no.
     } else {
                  
          //Get error response and display error.
     }
} failure: ^(NSError * _Nonnull error) {
              
     //Get error response and display error.
}];
//Step 1: Generate payment token.
let paymentToken: String = "roZG9I1hk/GYjNt+BYPYbxQtKElbZDs9M5cXuEbE+Z0QTr/yUcl1oG7t0AGoOJlBhzeyBtf5mQi1UqGbjC66E85S4m63CfV/awwNbbLbkxsvfgzn0KSv7JzH3gcs/OIL"      
 
//Step 2: Construct loyalty point payment request.
let paymentCode: PaymentCode = PaymentCode(channelCode: "CC")
         
var loyaltyPoints: [LoyaltyPoint] = [LoyaltyPoint]()
var rewards: [LoyaltyPointReward] = [LoyaltyPointReward]()
         
//Loyalty point reward info can be retrieve from Loyalty Point Info API
let reward: LoyaltyPointReward = LoyaltyPointReward()
reward.id = "1792e2b5-8b41-4712-9b44-4c857ce90c3e"
reward.quantity = 1.00
rewards.append(reward)
         
//Loyalty point info can be retrieve from Loyalty Point Info API
let loyaltyPoint: LoyaltyPoint = LoyaltyPoint()
loyaltyPoint.providerId = "DGC"
loyaltyPoint.redeemAmount = 1.00
loyaltyPoint.rewards = rewards
loyaltyPoints.append(loyaltyPoint)
         
let paymentRequest: PaymentRequest = LoyaltyPointPaymentBuilder(paymentCode: paymentCode)
                                     .cardNo("4111111111111111")
                                     .expiryMonth(11)
                                     .expiryYear(2026)
                                     .securityCode("123")
                                     .loyaltyPoints(loyaltyPoints)
                                     .build()        
    
//Step 3: Construct transaction request.
let transactionResultRequest: TransactionResultRequest = TransactionResultRequestBuilder(paymentToken: paymentToken)
                                                         .with(paymentRequest)
                                                         .build()
           
//Step 4: Execute payment request.
PGWSDK.shared.proceedTransaction(transactionResultRequest: transactionResultRequest, { (response: TransactionResultResponse) in
      
     if response.responseCode == APIResponseCode.TransactionAuthenticateRedirect || response.responseCode == APIResponseCode.TransactionAuthenticateFullRedirect {
                   
           let redirectUrl: String = response.data //Open WebView
     } else if response.responseCode == APIResponseCode.TransactionCompleted {
                   
           //Inquiry payment result by using invoice no.
     } else {
                   
           //Get error response and display error.
     }
}) { (error: NSError) in
               
     //Get error response and display error.
}
//Step 1: Generate payment token.
String paymentToken = 'roZG9I1hk/GYjNt+BYPYbxQtKElbZDs9M5cXuEbE+Z0QTr/yUcl1oG7t0AGoOJlBhzeyBtf5mQi1UqGbjC66E85S4m63CfV/awwNbbLbkxsvfgzn0KSv7JzH3gcs/OIL';
 
//Step 2: Construct loyalty point payment request.
Map<String, dynamic> paymentCode = {
   'channelCode': 'CC'
};
 
List loyaltyPoints = [];
List rewards = [];
 
//Loyalty point reward info can be retrieve from Loyalty Point Info API
Map<String, dynamic> reward = {
   'id': '1792e2b5-8b41-4712-9b44-4c857ce90c3e',
   'quantity': 1.00
};
rewards.add(reward);
 
//Loyalty point info can be retrieve from Loyalty Point Info API
Map<String, dynamic> loyaltyPoint = {
   'providerId': 'DGC',
   'redeemAmount': 1.00,
   'rewards': rewards
};
loyaltyPoints.add(loyaltyPoint);
 
Map<String, dynamic> paymentRequest = {
   'cardNo': '4111111111111111',
   'expiryMonth': 12,
   'expiryYear': 2026,
   'securityCode': '123',
   'loyaltyPoints': loyaltyPoints
};
 
//Step 3: Construct transaction request.
Map<String, dynamic> transactionResultRequest = {
   'paymentToken': paymentToken,
   'payment': {
      'code': {
        ...paymentCode
      },
      'data': {
        ...paymentRequest
      }
   }
};
 
//Step 4: Execute payment request.
PGWSDK().proceedTransaction(transactionResultRequest, (response) {
 
   if (response['responseCode'] == APIResponseCode.transactionAuthenticateRedirect || response['responseCode'] == APIResponseCode.transactionAuthenticateFullRedirect) {
 
       String redirectUrl = response['data']; //Open WebView
   } else if (response['responseCode'] == APIResponseCode.transactionCompleted) {
 
       //Inquiry payment result by using invoice no.
   } else {
 
       //Get error response and display error.
   }
}, (error) {
 
    //Get error response and display error.
});
//Step 1: Generate payment token.
let paymentToken = 'roZG9I1hk/GYjNt+BYPYbxQtKElbZDs9M5cXuEbE+Z0QTr/yUcl1oG7t0AGoOJlBhzeyBtf5mQi1UqGbjC66E85S4m63CfV/awwNbbLbkxsvfgzn0KSv7JzH3gcs/OIL';
 
//Step 2: Construct loyalty point payment request.
let paymentCode = {
      'channelCode': 'CC'
};
   
let loyaltyPoints = [];
let rewards = [];
   
//Loyalty point reward info can be retrieve from Loyalty Point Info API
let reward = {
      'id': '1792e2b5-8b41-4712-9b44-4c857ce90c3e',
      'quantity': 1.00
};
rewards.push(reward);
   
//Loyalty point info can be retrieve from Loyalty Point Info API
let loyaltyPoint = {
      'providerId': 'DGC',
      'redeemAmount': 1.00,
      'rewards': rewards
};
loyaltyPoints.push(loyaltyPoint);
   
let paymentRequest = {
      'cardNo': '4111111111111111',
      'expiryMonth': 12,
      'expiryYear': 2026,
      'securityCode': '123',
      'loyaltyPoints': loyaltyPoints
};
 
//Step 3: Construct transaction request.
let transactionResultRequest = {
   'paymentToken': paymentToken,
   'payment': {
      'code': {
         ...paymentCode
      },
      'data': {
         ...paymentRequest
      }
   }
};
  
//Step 4: Execute payment request.
await RTNPGW.proceedTransaction(JSON.stringify(transactionResultRequest)).then((response: string) => {
  
    let transactionResultResponse = JSON.parse(response);
  
    if (transactionResultResponse?.responseCode == APIResponseCode.transactionAuthenticateRedirect || transactionResultResponse?.responseCode == APIResponseCode.transactionAuthenticateFullRedirect) {
  
        let redirectUrl = transactionResultResponse?.data; //Open WebView
    } else if (transactionResultResponse?.responseCode == APIResponseCode.transactionCompleted) {
  
        //Inquiry payment result by using invoice no.
    } else {
  
        //Get error response and display error.
    }
}).catch ((error: Error) => {
  
    //Get error response and display error
});