How to make a redirect (301) in Node.js / Express?

Question

I have a static site, a simple single page layout that I deploy in Dokku. I need to make a redirect (301) from www to non www and from *.website1.com to website2.com, but I don't know how. I was trying to use express-force-domain in npm but it makes my URL's crazy and having some redirect loops, I was trying other methods that I find on the web but none succeeds.

my server.js is:

var express = require('express') var app = express();  app.set('port', (process.env.PORT || 80)) app.use(express.static(__dirname + '/public'))  app.get('/', function(request, response) {   response.send('Hello World!') })  app.listen(app.get('port'), function() {   console.log("Node app is running at localhost:" + app.get('port')) }) 

That is the version that works, but without redirects.

Answer 1

res.redirect(301, 'http://yourotherdomain.com' + req.path) 

See Express documentation.

Answer 2

To anyone arriving here from Google, while @frederic's answer is still what is recommended by the express docs, the response.send(status, body) style has been deprecated and will generate a warning (I am on express 4.13.4 at time of writing), and more importantly I found that it no longer produced the desired result when redirecting.

As @Markasoftware mentioned, to achieve an automatically followed 301, you need to set the location header to the url you want. The request body can be empty:

   response.set('location', 'https://my.redirect.location');    response.status(301).send()