Frameworks

NestJS is a Node.js framework for building server-side applications. It is based on TypeScript and JavaScript.

Nest makes use the Express HTTP framework by default. However, Nest is platform agnostic, meaning it can work with any Node HTTP framework. For example, it can optionally be configured to use Fastify, which can improve the Node framework.

Nest.js features:

• NestJS is based upon Typescript which enables developers to add types to our variables and provides compile errors and warnings based on them.
• NestJS contains a built-in DI container. Dependency Injection is a design pattern that is used to make our applications more efficient and modular. It is often used to keep your code clean, easy to read and use.
• The framework allows you to create extensible software solutions where there is no strong coupling between the components.
• Nest includes an exceptions layer that is responsible for handling all unhandled exceptions across an application. When an exception is not handled by your application code, it is caught by this layer, which sends an appropriate user-friendly response automatically.

NestJS is a relatively new solution in the field of backend development, with a large set of features for quickly building and deploying enterprise services that meet the requirements of modern application clients and adhere to the principles of SOLID and twelve-factor applications.