node.js - 在express js和node js上创建动态子域

Question

我正在尝试制作一个网站，当用户注册时，他将拥有 url > username.mydomain.com，我尝试了多种方法，从 vcap.me 等，以及如何创建动态子域例如简单易行，

Answer 1

// Use below code to get your subdomain name
// get your dynamic subdomain

app.use((req, res, next) => {
  if (!req.subdomains.length || req.subdomains.slice(-1)[0] === 'www') return next();
  // otherwise we have subdomain here
  var subdomain = req.subdomains.slice(-1)[0];
  // keep it
  req.subdomain = subdomain;
  next();
});


// conditional render a page
app.get('/', (req, res) => {
  // no subdomain
  if (!req.subdomain) {
    // render home page
    // mydomain.com
    res.render('home');
  } else {
    // render subdomain specific page
    // mypage.mydomain.com
    res.render('mypage');
  } // you can extend this else logic to render the different subdomain specific page
});


Note: to test this locally. you can use Nginx reverse proxy to forward your test url req to your local server and do not forget to point your test url to your local host 127.0.0.1 in your hosts file of your machine