node-getmacip/src/getMacIp.js

Get local IP address and MAC address

const os = require("os");
const networkInterfaces = os.networkInterfaces()
const getMac = () => {
  for (var i in networkInterfaces) {
    for (var j in networkInterfaces[i]) {
      if (
        networkInterfaces[i][j].family === 'IPv4' &&
        networkInterfaces[i][j].mac !== '00:00:00:00:00:00' &&
        networkInterfaces[i][j].address !== '127.0.0.1'
      ) {
        return networkInterfaces[i][j].mac
      }
    }
  }

}
const getIp = () => {
  for (var devName in networkInterfaces) {
    var iface = networkInterfaces[devName]
    for (var i = 0; i < iface.length; i++) {
      var alias = iface[i]
      if (
        alias.family === 'IPv4' &&
        alias.address !== '127.0.0.1' &&
        !alias.internal
      ) {
        return alias.address
      }
    }
  }
}

module.exports = {
  getMac,
  getIp
}