Node.js app.post does not populate MongoDB?

I'm running Node.js, Express, Mongoose and Mongodb locally and have this code in my app.js:

var express = require('express');
var app = express();
app.use(express.bodyParser());

// Decaler Mongoose
var mongoose = require('mongoose');
mongoose.connect('localhost','tinyreports');

// Require the Report model
var models = require('./models/reports.js');

app.post('/report/add', function(req, res) {
    var title = req.body.title;
    var recipients = req.body.recipients;

    var report = new models.Report({title:title});
    report.save( function(err, report) {
        if (err) return handleError(err);
        res.json({title:report.title});
    });

});

app.listen(3000);

console.log('server_start');

I also have the following model(reports.js):

var mongoose = require('mongoose');
var Schema = mongoose.Schema;

var reportsSchema = new Schema({
    title:  String
});

exports.Report = mongoose.model('Report', reportsSchema);

When I run a cURL post curl -X POST -H "Content-Type:application/json" -d '{"title":"test"}' http://localhost:3000/report/add to populate the database nothing happens.

What am I doing wrong here? Is there something wrong with my code or the whole set up?

Thanks!