Mastering MEAN Web Development Expert Full Stack JavaScript (Video 24)

This video tutorial covers the process of securing an API using user authentication tokens. It guides through creating a user service to interact with API endpoints, building a sign up form, and implementing a token service to manage authentication tokens. The tutorial also explains how to handle user input, validate data, and test the sign up feature. Observables are used to notify components of changes, ensuring a seamless user experience.

What validation checks are performed on the user input during sign-up?

Describe the process that occurs when the sign-up button is clicked.

What happens to the navigation bar after a user successfully signs in?

How does the token service manage the API token and user ID?