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wildcard-subdomains

Build Status npm version

Handle dynamic/wildcard subdomains in Express.js. Perfect for when you have customized subdomains for different users, and need to handle them within your Node app.

Requests to foo.yourdomain.com can be handled with using the route /_sub/:subdomain

Paths and query strings and paths remain intact. For example:

foo.yourdomain.com/post/cat?oh=hai can be handled with using the route /_sub/foo/post/cat?oh=hai

Dependency free!

How to use

Require the module in app.js:

var wildcardSubdomains = require('wildcard-subdomains')

Use the module in middleware:

app.use(wildcardSubdomains(opts))

opts - Object

Key Type Default Description
namespace String '_sub' Prepended to the path
ignore String '' Ignore url if its first subdomain matches ignore
stripSubdomain String '' Find and remove subdomain matching stripSubdomain

Example options:

app.use(wildcardSubdomains({
  namespace: 's',
  ignore: 'app',
  stripSubdomain:'www'
}))

Handle the new route for your subdomain, for example foo.yourdomain.com would be handled with:

app.get('/s/foo/', function(req, res){
  res.send("Meow!")
})

Example

npm run example

Or check the examples directory in this repo

Protip

For testing subdomains locally, use the domain vcap.me:3000

This is a domain that points back to your localhost, allowing you to test subdomains like foobar.vcap.me

Running your app behind a proxy? You'll likely need to set the appropriate trust proxy in express

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