unique-identity/lib/seeder.js

Amazingly unique ids which are short and Perfect for Url Shorteners, Product SKUs, Socket Ids, Data Base Ids, SQL, MongoDB, PostGres, MySQL, MSSQL, Redis ids, and any other id users might see...

'use strict';
const BigInt = require('big-integer');
const loadNs = process.hrtime();
const loadMs = new Date().getTime();

var address = '';
if (typeof __webpack_require__ !== 'function') {
  var mac = '', networkInterfaces = require('os').networkInterfaces();
  for (let interface_key in networkInterfaces) {
    const networkInterface = networkInterfaces[interface_key];
    const length = networkInterface.length;
    for (var i = 0; i < length; i++) {
      if (networkInterface[i].mac && networkInterface[i].mac != '00:00:00:00:00:00') {
        mac = networkInterface[i].mac; break;
      }
    }
  }
  address = mac ? parseInt(mac.replace(/\:|\D+/gi, '')).toString() : '';
}

function seeds() {
  let diffNs = process.hrtime(loadNs);
  let time = BigInt(loadMs).times(1e6).add(BigInt(diffNs[0]).times(1e9).plus(diffNs[1]));
  var last = seeds.last || time;
  return process.pid + (seeds.last = BigInt(time).greater(last) ? time.toString() : BigInt(last).add(1).toString()) + address;
}

module.exports = seeds;