Understanding Scalable Application Architecture Principles and Design Patterns

Welcome to Chapter 2, where we’ll dig deep into the architectural principles and design patterns that empower you to build scalable applications with NestJS. NestJS is an incredibly powerful framework, but wielding that power effectively requires a solid understanding of key concepts such as caching, design patterns, and asynchronous programming. If you’ve ever wondered how to elegantly manage global state, optimize performance, or write code that gracefully scales, this chapter will be the place to get your answers.

By the end of this chapter, you’ll have a theoretical understanding of various caching strategies to boost your app’s performance. You’ll also become proficient in using design patterns that contribute to the scalability and maintainability of your application. However, it doesn’t stop there; you’ll learn why NestJS prefers certain patterns...