# 基于Uniswap部署自己的去中心化交易所

By [Untitled](https://paragraph.com/@0xb14101d59de63a177e7b5cd76afcd14ae237a5b7) · 2023-02-21

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*   所需代码 合约： ​1.工厂合约 2.路由合约 3.weth合约 4.multical合约 知识点： 快速找到uniswap合约 weth功能，其他链对应的合约 multicall功能
    

前端： 1.uniswap前端 2.uniswap-sdk 知识点：从github找到历史提交

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*   操作流程
    
    *   1.部署工厂合约
        

交易对的合约由工厂合约动态部署出来

*   2.部署路由合约 (需要用到工厂合约地址)
    
*   3.前端工程中配置路由合约地址，部署前端
    
*   准备部署合约的账户地址 部署合约的账户地址需要没交易过，即nonce值为0。目的：多个测试、主网络部署的合约地址一致，web切换以太坊网络路由地址不会变。合约地址由部署地址和nonce值计算得出
    
*   部署合约  
    从Etherscan复制uniswap线上源代码用自己的账户地址部署
    
    *   uniswap v2 factory contract:
        

0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f

编译选项： ENVIROMENT选web3 EVM VERSION:istanbbul Enable optimization Auto compile

Deploy按钮旁边 Deploy address \_feeToSetter填上面ACCUNT地址，我们暂时不会设置gas fee

deploy的账户地址nonce应为0(未发出过交易)，向该账户转入eth做gas deploy deploy sucess后左下角就是部署成功的合约地址：MyUniswap2: 0x614feF16799C4aCd442166f13Fa087b96B54c5fE ​

*   uniswapV2Router: 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D 将部署产生的工厂合约地址填到路由合约:DEPOLOY  
    \_FACTORY: \_WETH: //此处填WETH Contract address
    

gas limit调大点，该合约比较大 transact 部署 sucess后左下角copy路由合约地址： MyUniswap2：0xC2606927D270554AAb19F79De55348e629a82a8A 该地址在前端工程index.ts中用到

    * WETH Contract: 
    

路由合约构造函数参数需要. WETH合约的地址在主网和测试网的地址都不相同，需要找到每个网络中WETH Contract地址 WETH合约用于将eth交换为erc20的eth，由于eth不是erc20 token，所以我们必须使用WETH作为交换媒介

      * mainnet: 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
    
    
      * reposten: 0xb603cEa165119701B58D56d10D2060fBFB3efad8(I find)
    
    
      * ropsten:0xc778417E063141139Fce010982780140Aa0cD5Ab
    
    
      * rinkeby:0xc778417E063141139Fce010982780140Aa0cD5Ab
    
    
      * goerl1:0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6
    
    
      * kovan:0xd0A1E359811322d97991E03f863a0C30C2cF029C
    
    
      * 
    
    
      * WETH9: 
    
    
        * rinkeby: 0xDf032Bc4B9dC2782Bb09352007D4C57B75160B15
    

*   将前端与自己部署的合约链接
    
    *   运行前端网页:
        

yarn ​yarn start

*   修改路由地址 修改路由地址让前端链接到我自己的路由合约中 修改文件：uniswap-interface/src/constants/index.ts 第6行ROUTER\_ADDRESS
    
*   Deploy前端界面到公网
    
    *   将前端代码添加到github仓库
        

cd uniswap-interface rm -rf .git git init git remote add origin [https://github.com/](https://github.com/)用户名/项目名.git (github上自己创建的项目地址)

*   安装并并部署gh-pages yarn add gh-pages //用gh-pages将前端代码部署 到github yarn build
    

修改./package.json  
1.“homepage”地址为github项目地址: [https://github.com/bagguo/MySwap](https://github.com/bagguo/MySwap) [https://github.com/bagguo/MyUniswap2](https://github.com/bagguo/MyUniswap2) 2.script模块添加 "scripts": { "deploy": "gh-pages -d build" } yarn build//编译 yarn deploy //部署 gh-pages分支到公网 [https://bagguo.github.io/MySwap/index.html](https://bagguo.github.io/MySwap/index.html) 部署完成要过段时间才能访问

*   部署token BaGGuo Token： creator: 0xB1aCccFe72279bC7b289A55eac84B4C339b62BEb (MetaMask钱包Account1账户) Address: Rinkeby: 0x9286D1c9DEf2F5241e0D32451C35A6355604d150
    
    *   erc20 part1
        

编译后，部署时填代币名称、简写、初始供应量 ​pragma solidity ^0.4.16; contract TokenERC20 { string public name; string public symbol; uint8 public decimals = 18; // 18 是建议的默认值 uint256 public totalSupply; mapping (address => uint256) public balanceOf; // mapping (address => mapping (address => uint256)) public allowance; event Transfer(address indexed from, address indexed to, uint256 value); event Burn(address indexed from, uint256 value); function TokenERC20(uint256 initialSupply, string tokenName, string tokenSymbol) public { totalSupply = initialSupply \* 10 \*\* uint256(decimals); balanceOf\[msg.sender\] = totalSupply; name = tokenName; symbol = tokenSymbol; } function \_transfer(address \_from, address \_to, uint \_value) internal { require(\_to != 0x0); require(balanceOf\[\_from\] >= \_value); require(balanceOf\[\_to\] + \_value > balanceOf\[\_to\]); uint previousBalances = balanceOf\[\_from\] + balanceOf\[\_to\]; balanceOf\[\_from\] -= \_value; balanceOf\[\_to\] += \_value; Transfer(\_from, \_to, \_value); assert(balanceOf\[\_from\] + balanceOf\[\_to\] == previousBalances); } function transfer(address \_to, uint256 \_value) public returns (bool) { \_transfer(msg.sender, \_to, \_value); return true; } function transferFrom(address \_from, address \_to, uint256 \_value) public returns (bool success) { require(\_value <= allowance\[\_from\]\[msg.sender\]); // Check allowance allowance\[\_from\]\[msg.sender\] -= \_value; \_transfer(\_from, \_to, \_value); return true; } function approve(address \_spender, uint256 \_value) public returns (bool success) { allowance\[msg.sender\]\[\_spender\] = \_value; return true; } -----其余见erc20 part2

*   erc20 part2 function burn(uint256 \_value) public returns (bool success) { require(balanceOf\[msg.sender\] >= \_value); balanceOf\[msg.sender\] -= \_value; totalSupply -= \_value; Burn(msg.sender, \_value); return true; } function burnFrom(address \_from, uint256 \_value) public returns (bool success) { require(balanceOf\[\_from\] >= \_value); require(\_value <= allowance\[\_from\]\[msg.sender\]); balanceOf\[\_from\] -= \_value; allowance\[\_from\]\[msg.sender\] -= \_value; totalSupply -= \_value; Burn(\_from, \_value); return true; } }
    
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*Originally published on [Untitled](https://paragraph.com/@0xb14101d59de63a177e7b5cd76afcd14ae237a5b7/uniswap)*