npm install node-machine-id

const {machineId, machineIdSync} = require('node-machine-id');

console.log(machineIdSync()); // 4867a008adfe5974b57e75e1ffb8b868efe642023406db43e8d5edfea50d8c0b

// 4867a008adfe5974b57e75e1ffb8b868efe642023406db43e8d5edfea50d8c0b
machineId().then(data => {
  console.log(data);
});