Which is Better Node.js Web Framework?
@nestjs/core vs fastify

A Node.js web framework is like a toolbox that helps web developers build server-side web applications using Node.js. It provides a structure and tools that make it easier to handle things like routing (directing requests to the right places), managing requests and responses, handling user sessions, working with databases, and creating web page templates. These frameworks simplify the process of building web applications, allowing developers to create scalable and high-performing websites. They take care of common tasks like handling incoming requests and sending out responses, so developers can focus on the unique features of their applications. They also make it easier to work with databases and other external services, making the development process faster and more efficient.

Package	Weekly Downloads	Github Stars	Open Issues	Last Commit	License

@nestjs/core	3,088,256	64,079	99	a day ago	MIT License
fastify	1,578,470	30,505	90	a day ago	Other

Features@nestjs/corefastify
 
 
 
Middleware Support@nestjs/core includes a middleware system for building modular and extensible applications with Nest.js.
Fastify provides a middleware system for adding functionality to your application, focusing on high performance and low overhead.
Routing@nestjs/core offers a powerful routing system with decorators for defining routes and controllers in a TypeScript-friendly way.
Fastify includes a built-in router for defining routes and handling requests efficiently.
Performance@nestjs/core provides performance optimizations and is suitable for building scalable and efficient applications.
Fastify is built for high performance and low overhead, making it one of the fastest web frameworks available.
TypeScript Support@nestjs/core is written in TypeScript and provides strong TypeScript support out of the box.
Fastify has good TypeScript support, allowing developers to write type-safe code and benefit from strong typing.
Extensibility and Ecosystem@nestjs/core comes with a rich ecosystem of modules and extensions for building web and microservices applications.
Fastify has a growing ecosystem of plugins and extensions that enhance its functionality and provide additional features.

Features	@nestjs/core	fastify

Middleware Support	@nestjs/core includes a middleware system for building modular and extensible applications with Nest.js.	Fastify provides a middleware system for adding functionality to your application, focusing on high performance and low overhead.
Routing	@nestjs/core offers a powerful routing system with decorators for defining routes and controllers in a TypeScript-friendly way.	Fastify includes a built-in router for defining routes and handling requests efficiently.
Performance	@nestjs/core provides performance optimizations and is suitable for building scalable and efficient applications.	Fastify is built for high performance and low overhead, making it one of the fastest web frameworks available.
TypeScript Support	@nestjs/core is written in TypeScript and provides strong TypeScript support out of the box.	Fastify has good TypeScript support, allowing developers to write type-safe code and benefit from strong typing.
Extensibility and Ecosystem	@nestjs/core comes with a rich ecosystem of modules and extensions for building web and microservices applications.	Fastify has a growing ecosystem of plugins and extensions that enhance its functionality and provide additional features.

@nestjs/core

fastify

A progressive Node.js framework for building efficient and scalable server-side applications.

Description

Nest is a framework for building efficient, scalable Node.js server-side applications. It uses modern JavaScript, is built with TypeScript (preserves compatibility with pure JavaScript) and combines elements of OOP (Object Oriented Programming), FP (Functional Programming), and FRP (Functional Reactive Programming).

Under the hood, Nest makes use of Express, but also provides compatibility with a wide range of other libraries, like Fastify, allowing for easy use of the myriad of third-party plugins which are available.

Philosophy

In recent years, thanks to Node.js, JavaScript has become the “lingua franca” of the web for both front and backend applications, giving rise to awesome projects like Angular, React, and Vue, which improve developer productivity and enable the construction of fast, testable, and extensible frontend applications. However, on the server-side, while there are a lot of superb libraries, helpers, and tools for Node, none of them effectively solve the main problem - the architecture.

Nest aims to provide an application architecture out of the box which allows for effortless creation of highly testable, scalable, and loosely coupled and easily maintainable applications. The architecture is heavily inspired by Angular.

Getting started

To check out the guide, visit docs.nestjs.com. :books:
要查看中文指南, 请访问 docs.nestjs.cn. :books:
가이드 문서는 docs.nestjs.com에서 확인하실 수 있습니다. :books:
ガイドは docs.nestjs.comでご確認ください。 :books:

Questions

For questions and support please use the official Discord channel. The issue list of this repo is exclusively for bug reports and feature requests.

Issues

Please make sure to read the Issue Reporting Checklist before opening an issue. Issues not conforming to the guidelines may be closed immediately.

Consulting

With official support, you can get expert help straight from Nest core team. We provide dedicated technical support, migration strategies, advice on best practices (and design decisions), PR reviews, and team augmentation. Read more about support here.

Support

Nest is an MIT-licensed open source project. It can grow thanks to the sponsors and support from the amazing backers. If you'd like to join them, please read more here.