使用 Widget#

yarn add @okxweb3/dex-widget
// or
npm install @okxweb3/dex-widget
// or
pnpm add @okxweb3/dex-widget

import React, { useRef, useEffect } from 'react';
import ReactDOM from 'react-dom/client';

import { createOkxSwapWidget } from '@okxweb3/dex-widget';

function App() {
  const widgetRef = useRef();

  useEffect(() => {
    const params = {
      width: 375,
      providerType: 'EVM',
    };
    const provider = window.ethereum;

    const listeners = [
      {
        event: 'ON_CONNECT_WALLET',
        handler: () => {
          provider.enable();
        },
      },
    ];

    const instance = createOkxSwapWidget(widgetRef.current, {
      params,
      provider,
      listeners,
    });
    return () => {
      instance.destroy();
    };
  }, []);

  return <div ref={widgetRef} />;
}

const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(
  <React.StrictMode>
    <App />
  </React.StrictMode>
);

import { createOkxSwapWidget, ProviderType } from '@okxweb3/dex-widget';

const widgetEthInstance = createOkxSwapWidget(
  document.getElementById('widget'),
  {
    params: {
      providerType: ProviderType.EVM,
    },
    provider: window.ethereum, // e.g. window.okexchain
  }
);

const widgetSolanaInstance = createOkxSwapWidget(
  document.getElementById('widget'),
  {
    params: {
      providerType: ProviderType.SOLANA,
    },
    provider: window.solana, // window.okexchain.solana
  }
);

interface IFeeConfig {
    [key: string]: {
        feePercent?: string | number;
        referrerAddress?: {
            [key: string]: {
                feePercent: string | number;
            };
        };
    };
}

interface ITokenPair {
    fromChain: string | number;
    toChain: string | number;
    fromToken?: string;
    toToken?: string;
}

enum ProviderType {
    EVM = 'EVM',
    SOLANA = 'SOLANA',
    WALLET_CONNECT = 'WALLET_CONNECT',
}

enum TradeType {
    SWAP = 'swap',
    BRIDGE = 'bridge',
    AUTO = 'auto',
}

enum THEME {
    LIGHT = 'light',
    DARK = 'dark',
}

import React, { useEffect, useRef } from 'react';
import {
  OkxSwapWidgetParams,
  ProviderType,
  TradeType,
} from '@okxweb3/dex-widget';

const provider = window.ethereum;

export function EvmWidget() {
  const widgetRef = useRef();

  const params = {
    chainIds: ['1', '10'],
    lang: 'zh_cn',
    providerType: ProviderType.EVM,
    theme: 'dark',
    tradeType: TradeType.AUTO,
    tokenPair: {
      fromChain: 1, //ETH
      toChain: 1, // ETH
      fromToken: '0xdac17f958d2ee523a2206206994597c13d831ec7', // USDT
      toToken: '0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE', // ETH
    },
    bridgeTokenPair: {
      fromChain: 1, //ETH
      toChain: 56, // BNB
      fromToken: '0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE', // ETH
      toToken: '0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE', // BNB
    },
  };
  const initialConfig = {
    params,
    provider,
    listeners: [
      {
        event: 'ON_CONNECT_WALLET',
        handler: (token, preToken) => {
          provider.enable();
        },
      },
    ],
  };

  useEffect(() => {
    const widgetHandler = createOkxSwapWidget(widgetRef.current, initialConfig);

    return () => {
      widgetHandler?.destroy();
    };
  }, []);

  return <div ref={widgetRef} />;
}

// EVM feeConfig example
feeConfig: {
    [chainId]: {
        referrerAddress: 'xxx',
        feePercent: [0-3],
    }
}

// Solana feeConfig example

feeConfig: {
    [chainId]: {
        feePercent: [0-3],
        referrerAddress: {
          [tokenContractA]: {
            referrerAccount: 'account/abc',
            feePercent: '1',
          },
          [tokenContractB]: {
            referrerAccount: 'account/abc',
            feePercent: '2',
          }
        }
    }
}

// Full Example
feeConfig: {
  1: {// Ethereum chainId
    feePercent: 3, // The percentage of Fee
    referrerAddress: '0x38a3b108eb2b97c307bf5788909f8c12afd0cd6b', // eth address that receives the fee
  },
  56: { // Bnb Chain chainId
    feePercent: 3, //
    referrerAddress: '0x38a3b108eb2b97c307bf5788909f8c12afd0cd6b', // bnb address that receives the fee
  },
  501: { // solana chainId
    referrerAddress: {
      '11111111111111111111111111111111': { //solana SOL contract address
        account: '6rocMMKG1DNg93RDfVL2xVdrA5nbAT8cFMbdvVTHUF4m',
        feePercent: 1,
      },
      EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v: { //solana USDC contract address
        account: 'C6XW7mFvCuVxYFTi9zTQrUcwkvhfGYAvuosXz6pLDZsa', //solana USDC token account that receives the fee
        feePercent: 1,
      },
      JUPyiwrYJFskUPiHa7hkeR8VUtAeFoSYbKedZNsDvCN: { //solana JUP contract address
        account: 'Ezq6jTC3CwnsXDSdtgy8Sa4xi1iA6fxuEeXxWFPLG9sc', //solana JUP token account that receives the fee
        feePercent: 1,
      },
    },
  },
  8453: {
    feePercent: 3,
    referrerAddress: '0x38a3b108eb2b97c307bf5788909f8c12afd0cd6b',
  },
}

// 1. Create and initialize the widget
const widgetHandler = createOkxSwapWidget(container, initialConfig);

// 2. Update the widget's parameters (e.g., change theme or size)
widgetHandler.updateParams({
  width: 700,
  theme: 'light',
  lang: 'tr_tr',
});

// 3. Update the provider if the user connects a different wallet, EVM => SOLANA
widgetHandler.updateProvider(window.solana, ProviderType.SOLANA);
// SOLANA => EVM
// widgetHandler.updateProvider(window.ethereum, ProviderType.EVM);

// 4. Modify event listeners to handle new types of events
widgetHandler.updateListeners([
  {
    event: OkxEvents.ON_FROM_CHAIN_CHANGE,
    handler: (payload) => {
      //
    },
  },
]);

const widgetHandler = createOkxSwapWidget(container, initialConfig);

widgetHandler.destory();

import {createOkxSwapWidget, OkxSwapWidgetParams, OkxEventListeners, OkxEvents} from '@cowprotocol/widget-lib'

const params: OkxSwapWidgetParams = {
    // ...
}

const listeners: OkxEventListeners = [
    {
        event: OkxEvents.ON_CONNECT_WALLET,
        handler: () => {
            // open connect wallet method, eg openConnectModal of the rainbow kit.
            window.ethereum.enable()
        }
    },
    {
        event: OkxEvents.ON_FROM_CHAIN_CHANGE,
        handler: (token) => {
            //
        }
    },
]

const { updateListeners } = createCowSwapWidget(container, { params, listeners, provider })