I'm using macaddress, but I don't know how to get the mac address what I'm using to connect to the internet
const macaddress = require('macaddress');
macaddress.all(function (err, all) {
console.log("Your mac address is -->" + JSON.stringify(all, null, 2));
});
try .one function for one interface
require('node-macaddress').one(function (err, addr) { console.log(addr); }
On node ≥ 0.11 you are not required to use the asynchronous version try
var addr = require('node-macaddress').one();