Vue의 기본 IP 주소를 얻는 방법

function getLocalIpAddress() {
  window.RTCPeerConnection = window.RTCPeerConnection || window.webkitRTCPeerConnection || window.mozRTCPeerConnection;
  var pc = new RTCPeerConnection({iceServers: []}), noop = function() {};
  pc.createDataChannel("");
  pc.createOffer(pc.setLocalDescription.bind(pc), noop);
  pc.onicecandidate = function(ice) {
    if (ice && ice.candidate && ice.candidate.candidate) {
      var s = ice.candidate.candidate.split('
')[0].split(' ')[4];
      return s;
    }
  };
}

import ipaddr from 'ipaddr.js';

const findLocalIpAddress = () => {
  return new Promise((resolve, reject) => {
    const RTCPeerConnection = window.RTCPeerConnection || window.webkitRTCPeerConnection || window.mozRTCPeerConnection;
    let pc = new RTCPeerConnection({iceServers: []})
    let ips = []
    pc.createDataChannel('')
    pc.createOffer().then(offer => pc.setLocalDescription(offer)).catch(e => console.log(e))
    pc.onicecandidate = event => {
      if (!event.candidate) {
        // all candidates have been sent
        resolve(ips)
      } else {
        const ip = ipaddr.parse(event.candidate.candidate.split(" ")[4]).toString()
        if (ips.indexOf(ip) == -1) {
          ips.push(ip)
        }
      }
    }
    setTimeout(() => {
      reject(new Error('Timeout'))
    }, 5000)
  })
}