Best practices for building scalable applications

As we approach the end of this chapter, it’s time to bring everything together. You’ve explored the architecture and design patterns, and even delved into the nitty-gritty of asynchronous programming in NestJS. However, knowing all these individual components is like having all the ingredients for a gourmet dish—you still need the recipe. So, let’s get down to the actionable best practices that will serve as your blueprint for building scalable applications in NestJS.

Code organization is key

Consider the following good practices for a better code organization:

• Modular design: Split your application into well-defined modules. NestJS makes this easy with its module system. Keeping related functionalities together simplifies both development and scaling.
• Clean code: The importance of writing clean, maintainable code cannot be overstated. Stick to conventions, be consistent in naming, and above...