README.md

local node and deploy scripts

• open two terminals

• in the first, run: npx hardhat node

  • to get the local ethereum node started

• in the second, run: npx hardhat run --network localhost scripts/deploy/localHardhatNode.ts

  • this is the deploy script for the lottery and its token contracts

• note the address of these contracts

  • and add it to the contracts.json file on the frontend repo

goerli deployment with hardhat

• update hardhat.config.ts

  • with node API key (Alchemy for instance) and
  • deploying account's private key

  import dotenv from "dotenv";
  dotenv.config();
  
  const config: HardhatUserConfig = {
    networks: {
      goerli: {
        url: `https://eth-goerli.g.alchemy.com/v2/${process.env.ALCHEMY_API_KEY}`,
        accounts: [`${process.env.GOERLI_PRIVATE_KEY}`],
      },
    },
    solidity: {
      version: "0.8.17",
      settings: {
        optimizer: {
          enabled: true,
          runs: 4000,
        },
      },
    },
    paths: { tests: "tests" },
  };

• update .dotenv with these fields

  ALCHEMY_API_KEY=""
  GOERLI_PRIVATE_KEY=""
  

• setup the deploy script with hardhat variant of ethers

  • example:

    import { ethers as hardhatEthers } from "hardhat";
    import { ethers } from "ethers";
    
    async function main() {
      console.log("Deploying Lottery contract --------------------------\n");
    
      const BET_PRICE = ethers.utils.parseEther("0.5");
      const BET_FEE = ethers.utils.parseEther("0.01");
    
      const lotteryContractFactory = await hardhatEthers.getContractFactory(
        "Lottery"
      );
      const lotteryContract = await lotteryContractFactory.deploy(
        BET_PRICE,
        BET_FEE,
        "G11 Lottery Token",
        "G11LT"
      );
    
      await lotteryContract.deployed();
    
      console.log("LOTTERY CONTRACT ADDRESS: -------------------");
      console.log(lotteryContract.address);
    
      const lotteryTokenAddress = await lotteryContract.lotteryTxnToken();
    
      const lotteryTokenContractFactory =
        await hardhatEthers.getContractFactory("LotteryToken");
    
      lotteryTokenContractFactory.attach(lotteryTokenAddress);
    
      console.log("LOTTERY TOKEN CONTRACT ADDRESS: -------------------");
      console.log(lotteryTokenAddress);
    }
    
    main().catch((error) => {
      console.error(error);
      process.exitCode = 1;
    });

• in the CLI, at project root, run:

  npx hardhat run --network goerli scripts/deploy/deployGoerliViaHardhat.ts