express app server . listen all interfaces instead of localhost only

Question

I\'m very new for this stuff, and trying to make some express app

var express = require(\'express\');
var app = express();

app.listen(3000, function(err) {
         


        

Answer 1

If you use don't specify host while calling app.listen, server will run on all interfaces available i.e on 0.0.0.0

You can bind the IP address using the following code

app.listen(3000, '127.0.0.1');