What is the NestJS framework?

NestJS is a Typescript Framework to builds on Nodejs technology to build back-end Applications.

It is used to build scalable and production-ready Backend applications.

It follows three programming paradigm techniques.

  • Object Oriented Programming
  • Functional programming
  • Functional Reactive programming

NestJS framework provides the following common services, and developers focus on business code to build quickly and easily.

  • Authentication and Authorization
  • Routing
  • Request body parse
  • Response
  • Error handler
  • logger
  • middleware

Developers write controllers, services, and repositories to write a functionality.

This framework inspired by the Angular framework that uses Typescript and hierarchical components.

It provides an easy way to integrate libraries such as ExpressJS and Fastify.

Nest.JS Advantages

  • Opensource

  • Easily Integrate with ORMS such as Prism, TypeORM, and Graphql

  • Architecture

    • Easy to learn and build applications
    • Typed language based on Typescript
    • Provides Command Line Interface(CLI) to create and build Production applications quickly
    • Folder structure and Architecture is similar to Angular
    • Inbuild support annotations for clean code
    • Modular Design
    • Microservice Architecture
  • Performance

    • Frameworks improve productivity
    • Highly scalable in terms of horizontal scaling
  • Testing

    • Easily test individual components for developer
    • Automates the testing to improve productivity

Nest.JS Dis advantages

  • It uses a decorator similar to Angular applications
  • Need to improve documentation
  • Integrated Typescript
  • Community size is much less compared with other frameworks such as Next.jS and Nuxt.js
  • A learning curve exists for new developers

Is NestJS and NodeJS are same?

Nodejs is a Javascript framework that runs outside the browser, i.e. to build server-side applications.

NestJS is a typescript framework that is used to build backend apps. It follows convention over the configuration paradigm.

Is NestJS Good for Enterprise?

Yes, NestJS is robust for building Enterprise Applications. The example applications built with NestJS are server-side apps such as

  • E-commerce Applications
  • Food Ordering Applications
  • Microservice Applications
  • SASS companies
  • Big and Large Fortune companies are using