hardhat.config.js

require("@nomiclabs/hardhat-waffle");
require('dotenv').config()

// The next line is part of the sample project, you don't need it in your
// project. It imports a Hardhat task definition, that can be used for
// testing the frontend.
require("./tasks/faucet");
require("./tasks/fastForward")

// If you are using MetaMask, be sure to change the chainId to 1337
module.exports = {
  solidity: {
    compilers: [
      {
        version: "0.8.4",
        settings: {
          optimizer: {
            enabled: true,
            runs: 200,
          },
        },
      },
      {
        version: "0.6.7",
        settings: {
          optimizer: {
            enabled: true,
            runs: 200,
          },
        },
      },
      {
        version: "0.8.13",
        settings: {
          optimizer: {
            enabled: true,
            runs: 200,
          },
        },
      },
      {
        version: "0.5.16",
        settings: {
          optimizer: {
            enabled: true,
            runs: 200,
          },
        },
      },
      {
        version: "0.6.6",
        settings: {
          optimizer: {
            enabled: true,
            runs: 999999,
          },
        },
      },
    ],
  },
  networks: {
    hardhat: {
      chainId: 31337,
      // mining: {
      //   auto: false,
      //   interval: 9000
      // }
    },
    emerald_testnet: {
      url: "https://testnet.emerald.oasis.dev",
      accounts:
        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    emerald_mainnet: {
      url: "https://emerald.oasis.dev",
      accounts:
        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
  },
  paths: {
    sources: './contracts',
    tests: './test',
    cache: './cache',
    artifacts: './artifacts',
  },
  mocha: {
    timeout: 60000
  }
};