truffle-config.js

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

module.exports = {
  plugins: ["truffle-plugin-verify"],
  networks: {
    development: {
      host: "127.0.0.1", // Localhost (default: none)
      port: 7545, // Standard Ethereum port (default: none)
      network_id: "*", // Any network (default: none)
    },

    // Useful for deploying to a public network.
    // Note: It's important to wrap the provider as a function to ensure truffle uses a new provider every time.
    testbnb: {
      provider: () =>
        new HDWalletProvider(
          mnemonic,
          "https://data-seed-prebsc-1-s1.bnbchain.org:8545"
        ),
      network_id: 97,
      confirmations: 1,
      timeoutBlocks: 200,
      skipDryRun: true,
    },
    matic: {
      provider: () =>
        new HDWalletProvider(
          mnemonic,
          `https://polygon-mumbai.g.alchemy.com/v2/bSo8uRanqGbniOrDUntxo6ycFm7QKF-A`
        ),
      network_id: 80001, // Matic's id
      confirmations: 1, // # of confirmations to wait between deployments. (default: 0)
      networkCheckTimeout: 10000,
      timeoutBlocks: 200,
      gas: 1000000,
      gasPrice: 10000000000,
      skipDryRun: true, // Skip dry run before migrations? (default: false for public nets )
    },
    goerli: {
      provider: () =>
        new HDWalletProvider(
          mnemonic,
          `https://eth-goerli.g.alchemy.com/v2/m1MzTp6gqvLngZae6SHQBMYLRoE1Uet5`
        ),
      network_id: 5, // Goerli's id
      confirmations: 1, // # of confirmations to wait between deployments. (default: 0)
      timeoutBlocks: 200, // # of blocks before a deployment times out  (minimum/default: 50)
      gas: 4465030,
      gasPrice: 10000000000,
      skipDryRun: true, // Skip dry run before migrations? (default: false for public nets )
    },
  },

  contracts_directory: "./src/contracts/",
  contracts_build_directory: "./src/abis/",

  // Configure your compilers
  compilers: {
    solc: {
      version: "0.8.13",
      optimizer: {
        enabled: true,
        runs: 200,
      },
    },
  },
};