# contcontract

**Published by:** [ysbear](https://paragraph.com/@ysbear666/)
**Published on:** 2023-05-24
**URL:** https://paragraph.com/@ysbear666/contcontract

## Content

1、打开gitpod 2、nvm install 16 3、新建文件夹mkdir ex cd ex 4、安装依赖yarn init -y yarn add -D typescript ts-node ethers@^5.7.2 zksync-web3 hardhat @matterlabs/hardhat-zksync-solc @matterlabs/hardhat-zksync-deploy yarn add -D @matterlabs/hardhat-zksync-verify @nomicfoundation/hardhat-verify 5、新建配置文件，命名为"hardhat.config.ts"。 6、填进去 默认测试网import "@matterlabs/hardhat-zksync-deploy"; import "@matterlabs/hardhat-zksync-solc"; import "@matterlabs/hardhat-zksync-verify"; module.exports = { zksolc: { version: "1.3.13", compilerSource: "binary", settings: {}, }, defaultNetwork: "zkSyncTestnet", networks: { zkSyncTestnet: { url: "https://zksync2-testnet.zksync.dev", ethNetwork: "goerli", zksync: true, }, }, solidity: { version: "0.8.17", }, }; 默认主网import "@matterlabs/hardhat-zksync-deploy"; import "@matterlabs/hardhat-zksync-solc"; import "@matterlabs/hardhat-zksync-verify"; module.exports = { zksolc: { version: "1.3.13", compilerSource: "binary", settings: {}, }, defaultNetwork: "zkMainnet", networks: { zkSyncTestnet: { url: "https://zksync2-testnet.zksync.dev", ethNetwork: "goerli", zksync: true, }, zkMainnet: { url: "https://zksync2-mainnet.zksync.io", ethNetwork: "mainnet", zksync: true, } }, solidity: { version: "0.8.17", }, }; 7、建两个文件夹 一个叫contracts，一个叫deploy mkdir contracts deploy 8、在contracts文件夹下建立EHS.sol文件，代码如下（如果是部署erc20合约就贴你自己的erc20合约）：// SPDX-License-Identifier: MIT pragma solidity ^0.8.17; contract EHS { } // SPDX-License-Identifier: MIT pragma solidity ^0.8.17; contract WXY { string public name = "WXY"; string public symbol = "WXY"; uint8 public decimals = 18; uint256 public totalSupply = 0; uint256 public maxSupply = 100000000 * 10**uint256(decimals); uint256 public mintedTokens = 0; bool public mintingFinished = false; mapping(address => uint256) public balanceOf; event Transfer(address indexed from, address indexed to, uint256 value); event Mint(address indexed to, uint256 value); event MintFinished(); modifier canMint() { require(!mintingFinished, "Minting has already finished"); _; } constructor() { balanceOf[msg.sender] = totalSupply; } function transfer(address to, uint256 value) external returns (bool) { require(value >= 1 * 10**uint256(decimals), "Invalid transfer amount"); balanceOf[msg.sender] -= value; balanceOf[to] += value; emit Transfer(msg.sender, to, value); return true; } function mint() external canMint() { require(totalSupply + 1 <= maxSupply, "Exceeds maximum supply"); balanceOf[msg.sender] += 1; totalSupply += 1; mintedTokens += 1; mintingFinished = true; emit Mint(msg.sender, 1); emit MintFinished(); } } 9、编译合约yarn hardhat compile 10、安装dotenv库 npm install dotenv 12、新建.env文件填入WALLET_PRIVATE_KEY=your_private_key_here NODE_ENV=test 12、在deploy文件夹下创建deploy.ts文件import { Wallet, utils } from "zksync-web3"; import * as ethers from "ethers"; import { HardhatRuntimeEnvironment } from "hardhat/types"; import { Deployer } from "@matterlabs/hardhat-zksync-deploy"; // load env file import dotenv from "dotenv"; dotenv.config(); // load wallet private key from env file const PRIVATE_KEY = process.env.WALLET_PRIVATE_KEY || ""; if (!PRIVATE_KEY) throw "⛔️ Private key not detected! Add it to the .env file!"; // An example of a deploy script that will deploy and call a simple contract. export default async function (hre: HardhatRuntimeEnvironment) { console.log(`Running deploy script for the WXY contract`); // Initialize the wallet. const wallet = new Wallet(PRIVATE_KEY); // Create deployer object and load the artifact of the contract you want to deploy. const deployer = new Deployer(hre, wallet); const artifact = await deployer.loadArtifact("WXY"); // Estimate contract deployment fee const deploymentFee = await deployer.estimateDeployFee(artifact, [ ]); // ⚠️ OPTIONAL: You can skip this block if your account already has funds in L2 // Deposit funds to L2 // const depositHandle = await deployer.zkWallet.deposit({ // to: deployer.zkWallet.address, // token: utils.ETH_ADDRESS, // amount: deploymentFee.mul(2), // }); // // Wait until the deposit is processed on zkSync // await depositHandle.wait(); // Deploy this contract. The returned object will be of a `Contract` type, similarly to ones in `ethers`. // `greeting` is an argument for contract constructor. const parsedFee = ethers.utils.formatEther(deploymentFee.toString()); console.log(`The deployment is estimated to cost ${parsedFee} ETH`); const deployedContract = await deployer.deploy(artifact, []); //obtain the Constructor Arguments console.log("Constructor args:" + deployedContract.interface.encodeDeploy([])); // Show the contract info. const contractAddress = deployedContract.address; console.log(`${artifact.contractName} was deployed to ${contractAddress}`); // verify contract for tesnet & mainnet if (process.env.NODE_ENV != "test") { // Contract MUST be fully qualified name (e.g. path/sourceName:contractName) const contractFullyQualifedName = "contracts/WXY.sol:WXY"; // Verify contract programmatically const verificationId = await hre.run("verify:verify", { address: contractAddress, contract: contractFullyQualifedName, bytecode: artifact.bytecode, }); } else { console.log(`Contract not verified, deployed locally.`); } } 13、部署合约yarn hardhat deploy-zksync 14、合约验证 借助 Remix 展开合约，获取单一文件格式的代码，右键选择 Flatten，然后填入代码行进行验证 15、构建前端dappSubscribe

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