NEST.JS
NestJS is a framework for creating Node.js server applications. This is a simple environment with a clear architecture and wide capabilities, the number of users of which has been growing steadily since its release.
Nest.JS is designed for developing demanding and non-standard systems, contains everything you need to launch a project in the box, but also supports the integration of any Express.JS components, TypeScript and JavaScript libraries and modules, and much more. With its help, you will get all the performance of Node.js and access to the most innovative technologies for your application.
Node.js is a software platform for the development of fast and scalable web applications, the client and server parts of which are written in JavaScript. Node.js uses Google's V8 engine and converts JavaScript code into binary code that can run not only in a browser but also in applications on PC or mobile OS.
In practice, Node.js is used as a web server because of its event-driven model and non-blocking I/O architecture. All of these are fundamental capabilities that require higher-level add-ons, such as the Nest.JS framework, to be used in your project. The goal of the framework is to make development easier, faster, and more structured. There are more than two dozen popular frameworks for Node.js, based, like Nest.JS, on the "standard" Express.JS. The main advantage of Nest.JS in comparison with the underlying platform is a clear architecture consisting of three components: controllers, modules, and providers. Thanks to this architecture, it is easy to divide the application into microservices from the very beginning of development and work on each of them separately, combining them into a single system.
Versatility and extensibility. Nest.js gives developers maximum freedom to use additional modules. It provides a high level of abstraction that allows you to use the APIs of other frameworks, libraries, and more, assembling a unique server application of any type from modules. Nest is open source and has almost unlimited scalability. In particular, there are already modules for connecting PostgreSQL, MongoDB, MySQL databases and integrating Caching, Mongoose, GraphQL, WebSockets, etc.
A solid foundation and the best of the new. Nest.js is built on the principles of Express, and any application for this framework can be used in Nest, or you can forget about this possibility if you don't need these modules. Nest.js is a ready-made MVC application framework out of the box, written in TypeScript and supporting JavaScript, as well as a lot of solutions for them. At the same time, it is not limited to standard functions and allows you to connect all the most relevant JavaScript solutions. Besides, Nest.js applications are very easy to test, because with all the variety of features, the system forces you to use a strict architecture, like in Angular. It is also responsible for ensuring that you do not face huge resource costs for scaling the application when it is needed - each microservice can be modified separately without stopping the entire system.
Outlook. Currently, NestJS is the fastest growing framework among those developed for NodeJS on TypeScript. Developers like it because it allows them to create applications with unusual features and implement original ideas. Many modules and examples of problem solving have already been written for it, which are publicly available and can be useful in your project. Such an adaptive ecosystem and scalability are the reasons why you can choose Nest for your project, especially if you are a startup or an application with non-standard business logic.
NestJS will soon become the new standard for Node.js development. It is a flexible, scalable, and productive framework that is structured, lightweight, and reliable. This combination of qualities and the ability to create unique applications by combining microservices with different functions make it an excellent solution for startups and server applications of any scale.