How to set up local subdomains for Node.js app

Question

I am running an express app on node.js. The app uses the express-subdomain module to help handle routes for two different subdomains (sub1.example.com and sub2.example.com). I\'

Answer 1

on Ubuntu

For creating subdomains for localhost you just need to follow 2 simple steps.

Open your terminal by pressing CTRL + ALT + T then run the following commands:

sudo vi hosts
sudo -i gedit /etc/hosts # to edit /etc/hosts file

Once you run 2nd command /etc/hosts file will open and now this is the place where you need to define subdomains.

Example: localhost is:

127.0.0.1       //our localhost

define new subdomain:
127.0.0.1       example.localhost   # first

and another..

127.0.0.1       demo.localhost      #second

that's it. Hope this was helpful.

Answer 2

I had same exact problem and I found a simple solution. Instead of writing sub1.localhost try replacing localhost with lvh.me this is a domain that always resolves to localhost and now whenever you write sub1.lvh.me even though a port like sub1.lvh.me:3000 it will still work.

Answer 3

There is an awesome website, which someone hosted for all of us.

localtest.me

All requests will be routed to 127.0.0.1, including subdomains. e.g something.localtest.me:3000 will resolve to 127.0.0.1:3000

but, for example, in your Express app, if you do

 app.get('*', (req, res) => {
     console.log(req.subdomains); // [ something ]
 });

you'll get your subdomain

Answer 4

I'm the author of the module :)

For each new subdomain you wish to test locally you must add into your /etc/hosts file. So for example:

localhost is:

127.0.0.1       localhost

a new subdomain would be..

127.0.0.1       sub1.localhost

and another..

127.0.0.1       sub2.localhost

Check out what I have done in the tests.