Preparing for Nest.js

At this point, you understand the core concepts of TypeScript.

You can define types, structure your data, work with functions, and organize logic using classes. These are the exact building blocks used in modern backend frameworks.

Nest.js is built around these ideas.

In Nest.js, you will see:

• Classes used for controllers and services;
• Types and interfaces used to define data structures;
• Clear separation of logic across different parts of the application.

Because you already understand these concepts, working with Nest.js will feel much more natural.

Instead of writing unstructured code, you will start organizing your backend into well-defined components.

In the next block, you will learn how Nest.js uses these patterns to help you build scalable and maintainable backend applications.