truffle.js

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

module.exports = {
    networks: {
        development: {
            host: "localhost",
            port: 8545,
            gas: 4712388,
            network_id: "*", // Match any network id
        },
        test: {
            host: "localhost",
            port: 8545,
            gas: 4712388,
            network_id: "*", // Match any network id
            disableConfirmationListener: true, // workaround for eth_getBlockByNumber spam
        },
        rinkeby: {
            host: "localhost",
            from: "0x1120336b9a0631d65013dbfe7a68b61b586fc2f7",
            port: 8546,
            gas: 300000,
            gasPrice: 4000000000, // 4 GWei
            network_id: "4", // Match  rinkeby network
        },
        main: {
            host: "localhost",
            from: "0x324ec9421c051d1ec1855ef6fe49263c02b35c77",
            port: 8546,
            gas: 300000,
            gasPrice: 4000000000, // 4 GWei
            confirmations: 2,
            network_id: "1", // Match main network
        },
    },
    compilers: {
        solc: {
            version: "^0.8.11",
            settings: {
                optimizer: {
                    runs: 200,
                    enabled: true,
                },
            },
        },
    },
};