How to send formatted json in expressjs?

app.js

app.set('json spaces', 4);

 

You're going to have to set the Content-Type to application/json like this

app.get('/', function (req, res) {
    users.find({}).toArray(function(err, results){
        res.header("Content-Type",'application/json');
        res.send(JSON.stringify(results, null, 4));
  });
});

node and express send json formatted

node and express send json formatted