hardhat.config.js

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

// This is a sample Hardhat task. To learn how to create your own go to
// https://hardhat.org/guides/create-task.html
task("accounts", "Prints the list of accounts", async () => {
  const accounts = await ethers.getSigners();

  for (const account of accounts) {
    console.log(account.address);
  }
});

// You need to export an object to set up your config
// Go to https://hardhat.org/config/ to learn more

/**
 * @type import('hardhat/config').HardhatUserConfig
 */
module.exports = {
  paths: {
      artifacts: './build/contracts'
  },
  networks: {
  hardhat: {
  accounts: [
      {
      privateKey:
          "0xc5e8f61d1ab959b397eecc0a37a6517b8e67a0e7cf1f4bce5591f3ed80199122",
      balance: "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
      },
      {
      privateKey:
          "0xd49743deccbccc5dc7baa8e69e5be03298da8688a15dd202e20f15d5e0e9a9fb",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x23c601ae397441f3ef6f1075dcb0031ff17fb079837beadaf3c84d96c6f3e569",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0xee9d129c1997549ee09c0757af5939b2483d80ad649a0eda68e8b0357ad11131",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x87630b2d1de0fbd5044eb6891b3d9d98c34c8d310c852f98550ba774480e47cc",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x275cc4a2bfd4f612625204a20a2280ab53a6da2d14860c47a9f5affe58ad86d4",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x7f307c41137d1ed409f0a7b028f6c7596f12734b1d289b58099b99d60a96efff",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x2a8aede924268f84156a00761de73998dac7bf703408754b776ff3f873bcec60",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x8b24fd94f1ce869d81a34b95351e7f97b2cd88a891d5c00abc33d0ec9501902e",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b29085",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b29086",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b29087",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b29088",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b29089",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b2908a",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b2908b",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b2908c",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b2908d",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b2908e",
      balance: "10000000000000000000000"
      },
      {
      privateKey:
          "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b2908f",
      balance: "10000000000000000000000"
      }
  ]
  }
  },
  solidity: {
  version: "0.5.17",
  settings: {
      optimizer: {
        enabled: true,
        runs: 200
      }
    }
  }
};