truffle-config.js

const HDWalletProvider = require('@truffle/hdwallet-provider');
const fs = require('fs');
const mnemonic = fs.readFileSync(".secret").toString().trim();

module.exports = {
  // Uncommenting the defaults below 
  // provides for an easier quick-start with Ganache.
  // You can also follow this format for other networks;
  // see <http://truffleframework.com/docs/advanced/configuration>
  // for more details on how to specify configuration options!
  //
  plugins: [
    'truffle-plugin-verify'
  ],
  api_keys: {
    bscscan: "FMHIDF3JI4TMMEZAGD7MNNC8QJ77CCVUAR"
  },
  networks: {
   development: {
     host: "127.0.0.1",
     port: 7545,
     network_id: "*"
   },
   test: {
     host: "127.0.0.1",
     port: 7545,
     network_id: "*"
   },
   testnet: {
      provider: () => new HDWalletProvider(mnemonic, `https://data-seed-prebsc-1-s1.binance.org:8545`),
      network_id: 97,
      confirmations: 10,
      timeoutBlocks: 200,
      skipDryRun: true
    },
    bsc: {
      provider: () => new HDWalletProvider(mnemonic, `https://bsc-dataseed1.binance.org`),
      network_id: 56,
      confirmations: 10,
      timeoutBlocks: 200,
      skipDryRun: true
    },
  },
  compilers: {
    solc: {
      version: "^0.7",
      optimizer: {
        enabled: true,
        runs: 200
      }
    }
  }
  
};