Flutter支付插件waafipay的功能使用

Flutter支付插件waafipay的功能使用

概述

WaafiPay Flutter 客户端 是一个简单直观的软件包，用于与 WaafiPay 支付网关集成。它允许你执行各种支付操作，如预授权付款、提交交易和取消预授权，同时无缝管理你的 API 请求。

功能

• 预授权付款：只需几行代码即可轻松发起预授权付款。
• 提交交易：安全地提交已预授权的付款以最终确定交易。
• 取消预授权：快速高效地取消任何待处理的预授权。
• 易于使用：设计简洁，便于集成。
• 安全：小心处理敏感的支付信息。

安装

你可以通过 flutter pub 安装 WaafiPay 包：

flutter pub add waafipay

示例代码

以下是一个完整的示例代码，演示如何使用 WaafiPay 插件进行预授权付款、提交交易和取消预授权。

import 'package:flutter/material.dart';
import 'package:waafipay/waafipay.dart';

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

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: PaymentScreen(),
    );
  }
}

class PaymentScreen extends StatefulWidget {
  [@override](/user/override)
  _PaymentScreenState createState() => _PaymentScreenState();
}

class _PaymentScreenState extends State<PaymentScreen> {
  final WaafiPay waafiPay = WaafiPay(apiKey: 'YOUR_API_KEY');

  Future<void> preauthorizePayment() async {
    try {
      // 预授权付款
      var response = await waafiPay.preauthorizePayment(
        amount: 100.0,
        currency: 'USD',
        description: 'Test Payment',
        returnUrl: 'https://yourwebsite.com/return',
      );

      print('Preauthorization successful: ${response}');
    } catch (e) {
      print('Error during preauthorization: $e');
    }
  }

  Future<void> commitTransaction() async {
    try {
      // 提交交易
      var response = await waafiPay.commitTransaction(
        transactionId: 'PREAUTH_ID', // 替换为实际的预授权ID
      );

      print('Transaction committed successfully: ${response}');
    } catch (e) {
      print('Error during transaction commit: $e');
    }
  }

  Future<void> cancelPreauthorization() async {
    try {
      // 取消预授权
      var response = await waafiPay.cancelPreauthorization(
        transactionId: 'PREAUTH_ID', // 替换为实际的预授权ID
      );

      print('Preauthorization canceled successfully: ${response}');
    } catch (e) {
      print('Error during preauthorization cancellation: $e');
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('WaafiPay 示例'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            ElevatedButton(
              onPressed: preauthorizePayment,
              child: Text('预授权付款'),
            ),
            ElevatedButton(
              onPressed: commitTransaction,
              child: Text('提交交易'),
            ),
            ElevatedButton(
              onPressed: cancelPreauthorization,
              child: Text('取消预授权'),
            ),
          ],
        ),
      ),
    );
  }
}