truffle config for the ropsten blockchain

truffle-config.js

    const HDWalletProvider = require("truffle-hdwallet-provider"); // npm i truffle-hdwallet-provider

    const ROPSTEN_MNEMONIC =
      "Input your seed phrase here";
    const INFURA_API_KEY = "input your infura api Key here";

    module.exports = {
      
      networks: {
        ropsten: {
          provider: function() {
            return new HDWalletProvider(
              ROPSTEN_MNEMONIC,
              `https://ropsten.infura.io/v3/${INFURA_API_KEY}`
            );
          },
          network_id: 3
        }
      },
      compilers: {
        solc: {
        }
      }
    };