hardhat.config.ts

import * as dotenv from 'dotenv';
dotenv.config();
import { HardhatUserConfig } from 'hardhat/config';
import '@nomicfoundation/hardhat-toolbox';
import 'solidity-docgen';
import '@nomicfoundation/hardhat-verify';
import 'hardhat-contract-sizer';

// Read any tasks
const tasks = './tasks/';

const normalizedPathTasks = require('path').join(__dirname, tasks);

require('fs')
  .readdirSync(normalizedPathTasks)
  .forEach((file: string) => {
    require(normalizedPathTasks + file);
  });

// If not set, it uses ours Alchemy's default API key.
// You can get your own at https://dashboard.alchemyapi.io
const providerApiKey = process.env.ALCHEMY_API_KEY || 'alchemy_api_key';
// If not set, it uses the hardhat account 0 private key.
const deployerPrivateKey =
  process.env.DEPLOYER_PRIVATE_KEY ?? '0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80';
// If not set, it uses ours Etherscan default API key.
const etherscanApiKey = process.env.ETHERSCAN_API_KEY || 'ethercan_api_key';

const config: HardhatUserConfig = {
  solidity: {
    version: '0.8.20',
    settings: {
      optimizer: {
        enabled: true,
        runs: 200,
      },
    },
  },
  networks: {
    mainnet: {
      url: `https://eth-mainnet.alchemyapi.io/v2/${providerApiKey}`,
      accounts: [deployerPrivateKey],
    },
    sepolia: {
      url: `https://eth-sepolia.g.alchemy.com/v2/${providerApiKey}`,
      accounts: [deployerPrivateKey],
    },
    goerli: {
      url: `https://eth-goerli.alchemyapi.io/v2/${providerApiKey}`,
      accounts: [deployerPrivateKey],
    },
  },
  docgen: {
    pages: 'files',
  },
  etherscan: {
    apiKey: etherscanApiKey,
  },
};

export default config;