truffle-config.js

/**
 * Use this file to configure your truffle project. It's seeded with some
 * common settings for different networks and features like migrations,
 * compilation and testing. Uncomment the ones you need or modify
 * them to suit your project as necessary.
 *
 * More information about configuration can be found at:
 *
 * trufflesuite.com/docs/advanced/configuration
 *
 * To deploy via Infura you'll need a wallet provider (like @truffle/hdwallet-provider)
 * to sign your transactions before they're sent to a remote public node. Infura accounts
 * are available for free at: infura.io/register.
 *
 * You'll also need a mnemonic - the twelve word phrase the wallet uses to generate
 * public/private key pairs. If you're publishing your code to GitHub make sure you load this
 * phrase from a file you've .gitignored so it doesn't accidentally become public.
 *
 */
require("dotenv").config();

const HDWalletProvider = require('@truffle/hdwallet-provider');
// const infuraKey = "fj4jll3k.....";
//
// const fs = require('fs');
// const mnemonic = fs.readFileSync(".secret").toString().trim();

module.exports = {
    /**
     * Networks define how you connect to your ethereum client and let you set the
     * defaults web3 uses to send transactions. If you don't specify one truffle
     * will spin up a development blockchain for you on port 9545 when you
     * run `develop` or `test`. You can ask a truffle command to use a specific
     * network from the command line, e.g
     *
     * $ truffle test --network <network-name>
     */

    networks: {
        goerli: {
            provider: () => new HDWalletProvider(process.env.MNEMONIC, `https://goerli.infura.io/v3/fbc55f1f018f4c95bb74cdf75092f31b`),
            network_id: 5,
            confirmations: 1,
            timeoutBlocks: 200,
            skipDryRun: true
        },

        bsc_testnet: {
            provider: () => new HDWalletProvider(process.env.MNEMONIC, `https://data-seed-prebsc-2-s1.binance.org:8545`),
            network_id: 97,
            confirmations: 1,
            timeoutBlocks: 200,
            skipDryRun: true
        },

        bsc: {
            provider: () => new HDWalletProvider(process.env.MNEMONIC, `https://bsc-dataseed1.binance.org`),
            network_id: 56,
            confirmations: 10,
            timeoutBlocks: 200,
            skipDryRun: true
        },

        heco_testnet: {
            provider: () => new HDWalletProvider(process.env.MNEMONIC, 'https://http-testnet.hecochain.com'),
            network_id: 256
        },

        heco: {
            provider: () => new HDWalletProvider(process.env.MNEMONIC, 'https://http-mainnet.hecochain.com'),
            network_id: 128
        }
    },

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

    // Configure your compilers
    compilers: {
        solc: {
            version: "0.6.5",    // Fetch exact version from solc-bin (default: truffle's version)
            // docker: true,        // Use "0.5.1" you've installed locally with docker (default: false)
            settings: {          // See the solidity docs for advice about optimization and evmVersion
                optimizer: {
                    enabled: true,
                    runs: 200
                },
                //  evmVersion: "byzantium"
            }
        }
    },

    // Truffle DB is currently disabled by default; to enable it, change enabled: false to enabled: true
    //
    // Note: if you migrated your contracts prior to enabling this field in your Truffle project and want
    // those previously migrated contracts available in the .db directory, you will need to run the following:
    // $ truffle migrate --reset --compile-all

    db: {
        enabled: false
    }
};