Getting AppFog mongodb service settings

app.js

//... your project imports and mongoose
var mongoose = require('mongoose');

//... your application code

// start mongoose:
mongoose.connect(getMongodbURL(), function(error) {
    // your initial code like bellow
    if (error) {
        console.log('Mongoose.connect error: ' + error);
        return;
    }
    
    app.listen(process.env.PORT || port);
    console.log('Listening on port ' + port);
}

function getMongodbURL() {
    // trying to get mongodb parameters from appfog environment
    if (process.env.VCAP_SERVICES) {
        var mongo = JSON.parse(process.env.VCAP_SERVICES)['mongodb-1.8'][0]['credentials'];
    }
    
    // it is your localhost settings
    if (!mongo) {
        mongo = {
            "hostname":"localhost",
            "port":27017,
            "db":"motivator"
        }
    }
    
    var result = 'mongodb://';
    if (mongo.username && mongo.password) {
         result += mongo.username + ":" + mongo.password + "@";
    }

    result += mongo.hostname + ":" + mongo.port + '/' + mongo.db;
    return result;
}