Redirect http to https express.js

Question

I'm trying to reroute http (80) to https (443) in my express app. I'm using some middle ware to do this. If i go to my https://my-example-domain.com, everything is fine. But if I go to http://my-example-domain.com it does not redirect and nothing shows up.

I also have setup some iptables on my ubuntu server

sudo iptables -A INPUT -i eth0 -p tcp --dport 80 -j ACCEPT
sudo iptables -A INPUT -i eth0 -p tcp --dport 443 -j ACCEPT
sudo iptables -A INPUT -i eth0 -p tcp --dport 8443 -j ACCEPT
sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 443 -j REDIRECT --to-port 8443




function requireHTTPS(req, res, next) {
  if (!req.secure) {
    return res.redirect('https://' + req.headers.host + req.url);
  }
  next();
}

// all environments
app.set('port', process.env.PORT || 8443);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(express.logger('dev'));
app.use(requireHTTPS);  // redirect to https
app.use(express.json());
app.use(express.urlencoded());
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));

app.get('/', function(req, res){
    res.render('index');
})

https.createServer(options, app).listen(8443);

So my question is do I just need to add another iptables rule? Or do I need to configure something in my app?

So based on one answer below, I don't think its a middleware problem, but a port issue. For example: if i go to http://my-example-domain.com, doesn't work. But if I add port 8443,http://my-example-domain.com:8443, it redirects fine.

Answer 1

var redirectApp = express () ,
redirectServer = http.createServer(redirectApp);

redirectApp.use(function requireHTTPS(req, res, next) {
  if (!req.secure) {
    return res.redirect('https://' + req.headers.host + req.url);
  }
  next();
})

redirectServer.listen(8080);