This is a sample project for the Ozanam Gala registration website that I started in mid 2013. It started as a learning project and now cruises along in maintenance mode with occasional updates to infrastructure. Bear in mind some of the tech used here is a bit dated and only updated as necessary.
Current tech stack: Express 4, (express-handlebars), MongoDb (native driver w/ a thin wrapper), AWS-SMS for email, and a simple Paypal integration. Also I've recently (mid-2015) added some basic testing to ensure pricing and other misc functions using Mocha.
To test, please use bin/t. Some of the tests include partial integrations to a test database. bin/t is a simple way to load up a test environment and test against a sandbox database.