go_sell_sdk_flutter 2.3.1

Flutter plugin compatible version of goSellSDK library for both Android and iOS.

go_sell_sdk_flutter

Flutter plugin compatible version of goSellSDK library for both Android and iOS that fully covers payment/authorization/card saving/card tokenization process inside your Android application.
Original SDKS

• Android (https://github.com/Tap-Payments/goSellSDK-Android)
• AndroidX (https://github.com/Tap-Payments/goSellSDK-AndroidX)
• iOS (https://github.com/Tap-Payments/goSellSDK-ios)

Getting Started

Table of Contents

---

1. Requirements
2. Installation
3. Installation with pubspec.yaml
4. Usage
5. Configure Your App
6. Configure SDK Session
7. Transaction Modes
8. Customer
9. Configure Payment Type
10. Use Tap Pay Button
11. Handle SDK Result
12. Apple Pay Setup
13. Additional Android Configuration

Requirements

---

To use the SDK the following requirements must be met:

1. Visual Studio - InteliJ Idea
2. Dart 2.7.1 or newer
3. Flutter: >=3.0.0 or newer
4. iOS 11 or later
5. XCode 12 or later

Installation

---

Include goSellSDK plugin as a dependency in your pubspec.yaml

 dependencies: go_sell_sdk_flutter: ^2.3.1 

---

Configure your app

goSellSDK should be set up. To set it up, add the following lines of code somewhere in your project and make sure they will be called before any usage of goSellSDK.

/**  
 * Configure App. (You must get those keys from tap) */GoSellSdkFlutter.configureApp(  
 bundleId: Platform.isAndroid? "ANDROID-PACKAGE-NAME" : "IOS-APP-ID", productionSecreteKey: Platform.isAndroid? "Android-Live-KEY" : "iOS-Live-KEY", sandBoxsecretKey: Platform.isAndroid?"Android-SANDBOX-KEY" : "iOS-SANDBOX-KEY", lang: "en");  

---

Configure SDK Session Example

Future<void> setupSDKSession() async {  
 try { GoSellSdkFlutter.sessionConfigurations( trxMode: TransactionMode.PURCHASE, transactionCurrency: "kwd", amount: '100', customer: Customer( customerId: "", // customer id is important to retrieve cards saved for this customer email: "[e-mail]", isdNumber: "965", number: "00000000", firstName: "test", middleName: "test", lastName: "test", metaData: null), paymentItems: <PaymentItem>[ PaymentItem( name: "item1", amountPerUnit: 1, quantity: Quantity(value: 1), discount: { "type": "F", "value": 10, "maximum_fee": 10, "minimum_fee": 1 }, description: "Item 1 Apple", taxes: [ Tax( amount: Amount( type: "F", value: 10, minimum_fee: 1, maximum_fee: 10), name: "tax1", description: "tax description") ], totalAmount: 100), ], // List of taxes taxes: [ Tax( amount: Amount( type: "F", value: 10, minimum_fee: 1, maximum_fee: 10), name: "tax1", description: "tax description"), Tax( amount: Amount( type: "F", value: 10, minimum_fee: 1, maximum_fee: 10), name: "tax1", description: "tax description") ], // List of shipping shippings: [ Shipping( name: "shipping 1", amount: 100, description: "shipping description 1"), Shipping( name: "shipping 2", amount: 150, description: "shipping description 2") ], // Post URL postURL: "https://tap.company", // Payment description paymentDescription: "paymentDescription", // Payment Metadata paymentMetaData: { "a": "a meta", "b": "b meta", }, // Payment Reference paymentReference: Reference( acquirer: "acquirer", gateway: "gateway", payment: "payment", track: "track", transaction: "trans_910101", order: "order_262625"), // payment Descriptor paymentStatementDescriptor: "paymentStatementDescriptor", // Save Card Switch isUserAllowedToSaveCard: true, // Enable/Disable 3DSecure isRequires3DSecure: false, // Receipt SMS/Email receipt: Receipt(true, false), // Authorize Action [Capture - Void] authorizeAction: AuthorizeAction( type: AuthorizeActionType.CAPTURE, timeInHours: 10), // Destinations destinations:Destinations( amount: 100, currency: 'kwd', count: 2, destinationlist: [ Destination( id: "", amount: 100, currency: "kwd", description: "des", reference: "ref_121299"), Destination( id: "", amount: 100, currency: "kwd", description: "des", reference: "ref_22444444") ]) , // merchant id merchantID: "", // Allowed cards allowedCadTypes: CardType.ALL, applePayMerchantID: "merchant.applePayMerchantID", allowsToSaveSameCardMoreThanOnce: false, // pass the card holder name to the SDK cardHolderName: "Card Holder NAME", // disable changing the card holder name by the user allowsToEditCardHolderName: false, paymentType: PaymentType.ALL, sdkMode: SDKMode.Sandbox); } on PlatformException { }  

---

Transaction Modes

You can set the transaction mode into one of the following modes:

• Purchase
• dart TransactionMode.PURCHASE
  

Normal customer charge.

• Authorize
• dart TransactionMode.AUTHORIZE_CAPTURE
  

Only authorization is happening. You should specify an action after successful authorization: either capture the amount or void the charge after specific period of time.

• Save Card
• dart TransactionMode.SAVE_CARD
  

Use this mode to save the card of the customer with Tap and use it later.

• Tokenize Card
• dart TransactionMode.TOKENIZE_CARD
  

Use this mode if you are willing to perform the charging/authorization manually. The purpose of this mode is only to collect and tokenize card information details of your customer if you don't have PCI compliance certificate but willing to process the payment manually using our services.

---

Customer

• New Customer (First time to pay using goSell SDK)

 customerId: "", email: "[e-mail]", isdNumber: "965", number: "00000000", firstName: "test", middleName: "test", lastName: "test", metaData: null)```  
> After the first transaction success, you receive the customerId in the response. Save it to be used in the next transaction.  
- Existed Customer (paid before using goSell SDK)  
  You need to set the customerId only and you can see the customer saved cards if the user has.  
``` dartCustomer(  
 customerId: "cus_smdnd3346nd3dks3jd9drd7d", email: "", isdNumber: "965", number: "00000000", firstName: "", middleName: "", lastName: "", metaData: null)```  
  
> Please note that goSell SDK using the customerId only if it's not Empty ('').  
  
  
---  
  
<a name="configure_payment_type"></a>  
**Configure Payment Type**  
- Set the payment type inside the [sessionConfigurations](#configure_sdk_session)  
```dart  
paymentType: PaymentType.ALL  

Payment Type	Description
ALL	Shows all the available payment methods
CARD	Shows only cards payment methods
DEVICE	Shows payment methods depending on the device, for iOS it shows ApplePay only

---

Use Tap Pay Button

Positioned(  
bottom: Platform.isIOS ? 0 : 10,  
left: 18,  
right: 18,  
child: SizedBox(  
height: 45,  
child: ElevatedButton(  
clipBehavior: Clip.hardEdge,  
style: ButtonStyle(  
backgroundColor: MaterialStateProperty.all(_buttonColor),  
shape: MaterialStateProperty.all(  
RoundedRectangleBorder(  
borderRadius: BorderRadius.circular(30),  
),  
),  
),  
onPressed: startSDK,  
child: Row(  
mainAxisAlignment: MainAxisAlignment.center,  
children: [  
Container(  
width: 25,  
height: 25,  
child: AwesomeLoader(  
outerColor: Colors.white,  
innerColor: Colors.white,  
strokeWidth: 3.0,  
controller: loaderController,  
),  
),  
Spacer(),  
Text(  
'PAY',  
style: TextStyle(  
color: Colors.white,  
fontSize: 16.0,  
),  
),  
Spacer(),  
Icon(  
Icons.lock_outline,  
color: Colors.white,  
),  
],  
),  
),  
),  
),  

---

Handle SDK Result

• Start SDK

 tapSDKResult = await GoSellSdkFlutter.startPaymentSDK;  

• Hnadle SDK result

setState(() {  
switch (tapSDKResult['sdk_result']) {  
case "SUCCESS":  
sdkStatus = "SUCCESS";  
handleSDKResult();  
break;  
case "FAILED":  
sdkStatus = "FAILED";  
handleSDKResult();  
break;  
case "SDK_ERROR":  
sdkErrorCode                  = tapSDKResult['sdk_error_code'].toString();  
sdkErrorMessage               = tapSDKResult['sdk_error_message'];  
sdkErrorDescription           = tapSDKResult['sdk_error_description'];  
break;  
case "NOT_IMPLEMENTED":  
sdkStatus = "NOT_IMPLEMENTED";  
break;  
}  
});  
void handleSDKResult() {  
 switch (tapSDKResult['trx_mode']) { case "CHARGE": case "AUTHORIZE": case "SAVE_CARD": extractSDKResultKeysAndValues(); break; case "TOKENIZE": token :                          =tapSDKResult['token']; token_currency                   =tapSDKResult['token_currency']; card_first_six                   =tapSDKResult['card_first_six']; card_last_four                   =tapSDKResult['card_last_four']; card_object                      =tapSDKResult['card_object']; card_exp_month                   =tapSDKResult['card_exp_month']; card_exp_year                    =tapSDKResult['card_exp_year']; break;}  
}  
void extractSDKResultKeysAndValues() {  
 id                             = tapSDKResult['charge_id']; description                    = tapSDKResult['description']; message                        = tapSDKResult['message']; card_first_six                 = tapSDKResult['card_first_six']; card_last_four                 = tapSDKResult['card_last_four']; card_object                    = tapSDKResult['card_object']; card_brand                     = tapSDKResult['card_brand']; card_exp_month                 = tapSDKResult['card_exp_month']; card_exp_year                  = tapSDKResult['card_exp_year']; acquirer_id                    = tapSDKResult['acquirer_id']; acquirer_response_code         = tapSDKResult['acquirer_response_code']; acquirer_response_message      = tapSDKResult['acquirer_response_message']; source_id                      = tapSDKResult['source_id']; source_channel                 = tapSDKResult['source_channel']; source_object                  = tapSDKResult['source_object']; source_payment_type            = tapSDKResult['source_payment_type']; responseID                     = tapSDKResult['charge_id'];}  

---

Apple pay setup

Follow the steps shared in the following link to setup apple pay:

https://github.com/Tap-Payments/goSellSDK-ios#apple-pay

---

Additional Android Configuration

To use GooglePay in your app , you will be required to do additional configuration as follows:

1. In build.gradle file
2. Ensure your min sdk is 21

minSdk 21
targetSdk 33

3. In Manifest file , Inside the <application tag do the below:

<meta-data
    android:name="com.google.android.gsm.wallet.api.enabled"
    android:value="true"
 />