hello_mongo.js

// hello world with node + express + consolidate + swig + mongodb
//
// grab name from MongoDB doc (course db, hello_mongo_express collection)
//
// type 'node hello_mongo.js' and go to http://localhost:8080

var express = require('express'),
    app = express(),
    cons = require('consolidate'),
    MongoClient = require('mongodb').MongoClient;

app.engine('html', cons.swig);
app.set('view engine', 'html');
app.set('views', __dirname + "/views");


app.get('/', function(req, res){

    MongoClient.connect('mongodb://localhost/course', function(err, db) {
        if(err) throw err;

        db.collection("hello_mongo_express").findOne({}, function(err, doc) {

            res.render('hello',  doc);
        });
    });
});

app.get('*', function(req, res){
    res.status(404).send('Page Not Found');
});

app.listen(8080);
console.log('Express server started on port 8080');