Conclusion

Congratulations on completing this course!

A recap

Throughout this course, we’ve thoroughly explored fundamental concepts, starting with the modules, services, and controllers. We learned how to use the NestJS CLI tool for efficient project setup and management.

The subsequent sections explored the construction of a REST API, addressing crucial aspects like validation, error handling, working with databases, and implementing user authentication with JWTs and role-based authorization. We also learned to integrate logging, write units, and perform end-to-end testing.