Get all IP address of the server

getListOfIPV4Address.js

/**
 * Get all IP address of the server
 * @param {Object|undefined} [{}] - An object.
 * @param {Boolean} [obj.skipLocalhost=false] - Determines if the localhost address is returned in the result list
 * @return {Array}                          Array of IPs
 */
const getListOfIPV4Address = ({ skipLocalhost = false } = {}) => {
  const os = require('os');
  const ifaces = os.networkInterfaces();

  let result = [];

  Object.keys(ifaces).forEach(function(ifname) {
    ifaces[ifname].forEach(function(iface) {
      // skip non-ipv4 addresses
      if ('IPv4' !== iface.family) {
        return;
      }

      if (skipLocalhost) {
        // skip over internal (i.e. 127.0.0.1)
        if (iface.internal !== false) {
          return;
        }
      }

      result.push(iface.address);
    });
  });

  return result;
};