buidler.config.js

require('dotenv').config();
usePlugin('@nomiclabs/buidler-waffle');
usePlugin('@nomiclabs/buidler-truffle5');
usePlugin('buidler-gas-reporter');
usePlugin('solidity-coverage');
usePlugin('@nomiclabs/buidler-solhint');

const INFURA_PROJECT_ID = process.env.INFURA_PROJECT_ID;
const PRIVATE_KEY = process.env.PRIVATE_KEY;

module.exports = {
  solc: {
    version: '0.6.12',
    optimizer: {
      enabled: true,
      runs: 200
    }
  },
  gasReporter: {
    currency: 'USD',
    enabled: (process.env.REPORT_GAS) ? true : false,
    gasPrice: 50
  },
  networks: {
    mainnet: {
      url: `https://mainnet.infura.io/v3/${INFURA_PROJECT_ID}`,
      accounts: [`0x${PRIVATE_KEY}`]
    },
    ropsten: {
      url: `https://ropsten.infura.io/v3/${INFURA_PROJECT_ID}`,
      accounts: [`0x${PRIVATE_KEY}`]
    },
    rinkeby: {
      url: `https://rinkeby.infura.io/v3/${INFURA_PROJECT_ID}`,
      accounts: [`0x${PRIVATE_KEY}`]
    },
    kovan: {
      url: `https://kovan.infura.io/v3/${INFURA_PROJECT_ID}`,
      accounts: [`0x${PRIVATE_KEY}`]
    },
    coverage: {
      url: 'http://localhost:8555',
    }
  }
};