You’ll need to test your API - and your backend might not be built yet. But no matter! The Angular 2 team have your back with an InMemoryDbService Http RESTful database.
Learn how to configure it in today’s episode (or just learn about using 3rd party JS with the Angular CLI)
You can always grab tagged source code on the GitHub repo which will be tagged day1, day2, etc.
You can Subscribe to my Fresh Bytecode channel for regular Java/Web-related screencasts, or if you’re just into Angular, checkout the YouTube Playlist where I update all the episodes in this series as they come out.