Summary

You should now be familiar with how to create high-quality auth experiences. In this chapter, we defined a User object that we can hydrate from or serialize to JSON objects, applying object-oriented class design and TypeScript operators for safe data handling.

We leveraged OOP design principals, using inheritance and abstract classes to implement a base auth service that demonstrates the Open/Closed principle.

We covered the fundamentals of token-based authentication and JWTs so that you don't leak any critical user information. You learned that caching and HTTP interceptors are necessary so that users don't have to input their login information with every request. Following that, we implemented two distinct auth providers, one in-memory and one with Firebase.

We then designed a great conditional navigation experience that you can use in your own applications by copying the base elements to your project and implementing your own auth provider. We...