server.js

var express = require('express');
var bodyParser = require('body-parser');

var mongoose = require('mongoose');


var app = express();

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));

app.use(express.static(__dirname + '/public'));


mongoose.connect('mongodb://localhost:27017');

var kittySchema = mongoose.Schema({
    name: String
});

var Kitten = mongoose.model('Kitten', kittySchema);


app.get("/cats", function(req,res) {


    Kitten.find().lean().exec(function(err, items) {
        res.json(items);
    });
});



var server = app.listen(3000, function () {
    var host = "127.0.0.1";
    var port = server.address().port;

    console.log('server is listening on  http://%s:%s', host, port);

    var silence = new Kitten({ name: 'Silence' });

    silence.save(function(err) {
        if (!err) {
            console.log("meow");
        }
    });
});