truffle-config.js

require("dotenv").config();
const { TruffleProvider } = require("@harmony-js/core");
const account_1_mnemonic = process.env.MNEMONIC;
const account_1_private_key = process.env.PRIVATE_KEY;
const account_2_mnemonic = process.env.MNEMONIC2;
const account_2_private_key = process.env.PRIVATE_KEY2;
const testnet_url = process.env.TESTNET_URL;
const mainnet_url = process.env.MAINNET_URL;
gasLimit = process.env.GAS_LIMIT;
gasPrice = process.env.GAS_PRICE;

module.exports = {
  networks: {
    testnet: {
      network_id: "2",
      provider: () => {
        const truffleProvider = new TruffleProvider(
          testnet_url,
          { memonic: account_1_mnemonic },
          { shardID: 0, chainId: 2 },
          { gasLimit: gasLimit, gasPrice: gasPrice }
        );
        const newAcc = truffleProvider.addByPrivateKey(account_1_private_key);
        truffleProvider.setSigner(newAcc);
        return truffleProvider;
      },
    },
    mainnet: {
      network_id: "1",
      provider: () => {
        const truffleProvider = new TruffleProvider(
          mainnet_url,
          { memonic: account_2_mnemonic },
          { shardID: 0, chainId: 1 },
          { gasLimit: gasLimit, gasPrice: gasPrice }
        );
        const newAcc = truffleProvider.addByPrivateKey(account_2_private_key);
        truffleProvider.setSigner(newAcc);
        return truffleProvider;
      },
    },
  },

  // Set default mocha options here, use special reporters etc.
  mocha: {
    // timeout: 100000
  },

  compilers: {
    solc: {
      version: "0.5.17",
      settings: {
        optimizer: {
          enabled: true,
          runs: 200,
        },
      },
    },
  },
};