Flutter金融交易插件fusion_swap_sdk的使用

fusion_swap_sdk 是一个用于1inch融合模式的工具库。你可以在App中体验融合交换功能，访问Avacus进行体验。

请自由使用，并在遇到任何问题时随时提出。

开始使用

导入并创建实例

import 'package:fusion_swap_sdk/fusion_swap_sdk.dart';

final _fusionSDK = FusionSDK(chainId: chainId);

获取报价

final quote = await _fusionSDK.getQuote(
  fromTokenAddress: fromTokenAddress, 
  toTokenAddress: toTokenAddress, 
  amount: amount
);

创建订单

final order = await _fusionSDK.createOrder(
  fromTokenAddress: fromTokenAddress, 
  toTokenAddress: toTokenAddress, 
  amount: amount, 
  walletAddress: walletAddress
);

提交订单

await _fusionSDK.submitOrder(
  preparedOrder: preparedOrder, 
  signature: signature
);

获取订单状态

final status = await _fusionSDK.submitOrder(orderHash: orderHash);

完整示例Demo

以下是一个完整的示例，展示了如何使用 fusion_swap_sdk 进行金融交易。

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

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

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

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

class _SwapPageState extends State<SwapPage> {
  final int chainId = 1; // 示例链ID
  final String fromTokenAddress = "0x..."; // 源token地址
  final String toTokenAddress = "0x..."; // 目标token地址
  final String amount = "1000000000000000000"; // 交易金额
  final String walletAddress = "0x..."; // 钱包地址
  final Map<String, dynamic> preparedOrder = {}; // 准备好的订单数据
  final String signature = "0x..."; // 签名
  final String orderHash = "0x..."; // 订单哈希

  Future<void> _getQuote() async {
    final quote = await _fusionSDK.getQuote(
      fromTokenAddress: fromTokenAddress, 
      toTokenAddress: toTokenAddress, 
      amount: amount
    );
    print("Quote: $quote");
  }

  Future<void> _createOrder() async {
    final order = await _fusionSDK.createOrder(
      fromTokenAddress: fromTokenAddress, 
      toTokenAddress: toTokenAddress, 
      amount: amount, 
      walletAddress: walletAddress
    );
    print("Order: $order");
  }

  Future<void> _submitOrder() async {
    await _fusionSDK.submitOrder(
      preparedOrder: preparedOrder, 
      signature: signature
    );
    print("Order submitted successfully.");
  }

  Future<void> _getOrderStatus() async {
    final status = await _fusionSDK.submitOrder(orderHash: orderHash);
    print("Order Status: $status");
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Fusion Swap SDK Demo'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            ElevatedButton(
              onPressed: _getQuote,
              child: Text('获取报价'),
            ),
            ElevatedButton(
              onPressed: _createOrder,
              child: Text('创建订单'),
            ),
            ElevatedButton(
              onPressed: _submitOrder,
              child: Text('提交订单'),
            ),
            ElevatedButton(
              onPressed: _getOrderStatus,
              child: Text('获取订单状态'),
            ),
          ],
        ),
      ),
    );
  }
}