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tosspayments widget sdk flutter

Flutter에서 토스페이먼츠 결제위젯을 손쉽게 연동하기 위한 패키지입니다.
1. 사전 설정 #
요구 사항 #

Flutter 3.7.0 이상
Dart SDK 2.17.0 이상
Android minSdkVersion 19 이상

A. 패키지 다운로드 #
pubspec.yaml에 패키지 추가
dependencies:
tosspayments_widget_sdk_flutter: ^2.0.6
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B. Android 설정 #
인터넷 권한을 부여하고, usesCleartextTraffic 세팅을 true로 설정하여 웹뷰 내 모든 카드사앱을 띄울 수 있도록 설정

...
<uses-permission android:name="android.permission.INTERNET" />
<appication
...
android:usesCleartextTraffic="true">
</application>
...
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2. 시작하기 #
아래 방법으로 토스페이먼츠 결제 위젯을 띄울 수 있습니다. 자세한 내용은 예제(example)을 참고해 주세요.
import 'package:flutter/material.dart';
import 'package:tosspayments_widget_sdk_flutter/model/payment_info.dart';
import 'package:tosspayments_widget_sdk_flutter/model/payment_widget_options.dart';
import 'package:tosspayments_widget_sdk_flutter/payment_widget.dart';
import 'package:tosspayments_widget_sdk_flutter/widgets/agreement.dart';
import 'package:tosspayments_widget_sdk_flutter/widgets/payment_method.dart';

void main() {
runApp(const MyApp());
}

class MyApp extends StatelessWidget {
const MyApp({super.key});

@override
Widget build(BuildContext context) {
return const MaterialApp(
home: PaymentWidgetExamplePage(),
);
}
}

class PaymentWidgetExamplePage extends StatefulWidget {
const PaymentWidgetExamplePage({super.key});

@override
State<PaymentWidgetExamplePage> createState() {
return _PaymentWidgetExamplePageState();
}
}

class _PaymentWidgetExamplePageState extends State<PaymentWidgetExamplePage> {
late PaymentWidget _paymentWidget;
PaymentMethodWidgetControl? _paymentMethodWidgetControl;
AgreementWidgetControl? _agreementWidgetControl;

@override
void initState() {
super.initState();

_paymentWidget = PaymentWidget(clientKey: "test_gck_docs_Ovk5rk1EwkEbP0W43n07xlzm", customerKey: "a1b2c3d4e5f67890");

_paymentWidget
.renderPaymentMethods(
selector: 'methods',
amount: Amount(value: 300, currency: Currency.KRW, country: "KR"))
.then((control) {
_paymentMethodWidgetControl = control;
});

_paymentWidget
.renderAgreement(selector: 'agreement')
.then((control) {
_agreementWidgetControl = control;
});
}

@override
Widget build(BuildContext context) {
return Scaffold(
body: SafeArea(
child: Column(children: [
Expanded(
child: ListView(children: [
PaymentMethodWidget(
paymentWidget: _paymentWidget,
selector: 'methods',
),
AgreementWidget(paymentWidget: _paymentWidget, selector: 'agreement'),
ElevatedButton(
onPressed: () async {
final paymentResult = await _paymentWidget.requestPayment(
paymentInfo: const PaymentInfo(orderId: 'OrderId_123', orderName: '파란티셔츠 외 2건'));
if (paymentResult.success != null) {
// 결제 성공 처리
} else if (paymentResult.fail != null) {
// 결제 실패 처리
}
},
child: const Text('결제하기')),
ElevatedButton(
onPressed: () async {
final selectedPaymentMethod = await _paymentMethodWidgetControl?.getSelectedPaymentMethod();
print('${selectedPaymentMethod?.method} ${selectedPaymentMethod?.easyPay?.provider ?? ''}');
},
child: const Text('선택한 결제수단 출력')),
ElevatedButton(
onPressed: () async {
final agreementStatus = await _agreementWidgetControl?.getAgreementStatus();
print('${agreementStatus?.agreedRequiredTerms}');
},
child: const Text('약관 동의 상태 출력')),
ElevatedButton(
onPressed: () async {
await _paymentMethodWidgetControl?.updateAmount(amount: 300);
print('결제 금액이 300원으로 변경되었습니다.');
},
child: const Text('결제 금액 변경'))
]))
])));
}
}
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* 연동 관련 문의사항 #
디스코드로 찾아오시면 실시간 채팅으로 궁금한 점을 해결하실 수 있습니다. (디스코드 링크)