truffle-config.js

// require("babel-register");
// require("babel-polyfill");

var HDWalletProvider = require("truffle-hdwallet-provider");
// var PrivateKeyProvider = require("truffle-privatekey-provider");

// var secrets = "",
//   ropstenPrivKey = "",
//   kovanPrivKey = "",
//   rinkebyPrivKey = "",
//   mainnetPrivKey = "",
//   infuraApikey = "",
//   alchemyApikey = "";
// try {
//   secrets = require("../../../config/secrets.js");
//   (ropstenPrivKey = secrets["private_key"]["ropsten"]),
//   (kovanPrivKey = secrets["private_key"]["kovan"]),
//   (rinkebyPrivKey = secrets["private_key"]["rinkeby"]),
//   (mainnetPrivKey = secrets["private_key"]["mainnet"]),
//   (infuraApikey = secrets["infura_apikey"]),
//   (alchemyApikey = secrets["alchemy_apikey"]);
// } catch (e) {}

module.exports = {
  migrations_directory: "./migrations",
  rpc: {
    host: "localhost",
    port: 8545
  },
  networks: {
    development: {
      host: "localhost",
      port: 8545,
      network_id: "50",
      gas: 6721975,
      gasPrice: 20000000000
    },
    testnet: {
      host: "localhost",
      port: 8545,
      network_id: "50",
      gas: 6721975,
      gasPrice: 20000000000
    },
    coverage: {
      host: "localhost",
      port: 8555,
      network_id: "55",
      gas: 500000000,
      gasPrice: 20000000000
    },
    ropsten: {
      provider: () => new PrivateKeyProvider(
        ropstenPrivKey,
        "https://eth-ropsten.alchemyapi.io/jsonrpc/" + alchemyApikey
        //"https://ropsten.infura.io/v3/" + infuraApikey
      ),
      /*provider: () => new HDWalletProvider(
        ropstenMnemonic,
        "https://ropsten.infura.io/v3/" + infuraApikey
      ),*/
      network_id: 3,
      gas: 8000000,
      gasPrice: 20000000000,
      confirmations: 0,
      timeoutBlocks: 200,
      skipDryRun: true
    },
    kovan: {
      provider: () => new PrivateKeyProvider(
        kovanPrivKey,
        "https://eth-kovan.alchemyapi.io/jsonrpc/" + alchemyApikey
        //"https://kovan.infura.io/v3/" + infuraApikey
      ),
      /*provider: () => new HDWalletProvider(
        kovanMnemonic,
        "https://kovan.infura.io/v3/" + infuraApikey
      ),*/
      network_id: 42,
      gas: 8000000,
      gasPrice: 10000000000,
      confirmations: 0,
      timeoutBlocks: 200,
      skipDryRun: true
    },
    rinkeby: {
      provider: () => new PrivateKeyProvider(
        rinkebyPrivKey,
        "https://eth-rinkeby.alchemyapi.io/jsonrpc/" + alchemyApikey
        //"https://rinkeby.infura.io/v3/" + infuraApikey
      ),
      /*provider: () => new HDWalletProvider(
        rinkebyMnemonic,
        "https://rinkeby.infura.io/v3/" + infuraApikey
      ),*/
      network_id: 4,
      gas: 6721975,
      gasPrice: 10000000000,
      confirmations: 0,
      timeoutBlocks: 200,
      skipDryRun: true
    },
    matic: {
      provider: function () {
        return new HDWalletProvider(
          "gesture rather obey video awake genuine patient base soon parrot upset lounge",
          "https://testnet2.matic.network"
        );
      },
      network_id: 8995,
      gas: 8000000,
      gasPrice: 0
    },
    mainnet: {
      provider: () => new PrivateKeyProvider(
        mainnetPrivKey,
        "https://eth-mainnet.alchemyapi.io/jsonrpc/" + alchemyApikey
        //"https://mainnet.infura.io/v3/" + infuraApikey
      ),
      /*provider: () => new HDWalletProvider(
        mainnetMnemonic,
        "https://mainnet.infura.io/v3/" + infuraApikey
      ),*/
      network_id: 1,
      gas: 6721975,
      gasPrice: 10000000000,
      confirmations: 0,
      timeoutBlocks: 200,
      skipDryRun: true
    }
  },
  compilers: {
    solc: {
      version: "0.5.3", // v0.5.3
      settings: {
        optimizer: {
          enabled: true,
          runs: 200
        },
      }
    }
  },
};