How to get Node.JS Express to listen only on localhost? - Stack Overflow

How to get Node.JS Express to listen only on localhost? - Stack Overflow i'm running a nodejs application and listen to port 3002, and use nginx as reverse proxy to redirect foo.chunghe.me to chunghe.me:3002, but i don't want to expose chunghe.me:3002 from outside world change from:

app.listen(3002)

to

app.listen(3002, 'localhost')