Multiple Domain Routing with Vue-Router

multi-domain-router.js

const host = window.location.host;
const parts = host.split('.');
const domainLength = 3; // route1.example.com => domain length = 3

const router = () => {
  let routes;
  if (parts.length === (domainLength - 1) || parts[0] === 'www') {
    routes = index;
  } else if (parts[0] === 'route1') {
    routes = route1;
  } else if (parts[0] === 'route2') {
    routes = route2;
  } else {
    // If you want to do something else just comment the line below
    routes = index;
  }
  return routes;
};