hardhat.config.js

require("@nomiclabs/hardhat-truffle5");
require("solidity-coverage")


// Define mnemonic for accounts.
let mnemonic = process.env.MNEMONIC;
if (!mnemonic) {
  // NOTE: this fallback is for development only!
  // When using other networks, set the secret in .env.
  // DO NOT commit or share your mnemonic with others!
  mnemonic = 'test test test test test test test test test test test test';
}

const accounts = { mnemonic };

// Config for hardhat.
module.exports = {
  solidity: { version: '0.7.6',
    settings: {
      optimizer: {
        enabled: true,
        runs: 200
      },
    }
  },  
  networks: {
    hardhat: {
      accounts,
    },
    localhost: {
      url: 'http://localhost:8545',
      accounts,
    },
    staging: {
      url: 'https://goerli.infura.io/v3/' + process.env.INFURA_TOKEN,
      accounts,
    },
  },
  paths: {
    sources: 'contracts',
  },
};