Nextjs Vs Nestjs

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What exactly is Next JS?

NestJS vs Node.js: What are the differences? Developers describe NestJS as "A progressive Node.js framework for building efficient and scalable server-side applications by @kammysliwiec".

Nest is a framework for building efficient, scalable Node.js server-side applications. It uses progressive 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 e.g.

Fastify, allowing for easy use of the myriad third-party plugins which are available. On the other hand, Node.js is detailed as "A platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications".

Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for category of the tech stack. "Powerful but super friendly to work with" is the top reason why over 7 developers like NestJS, while over 1321 developers mention "Npm" as the leading cause for choosing Node.js.

NestJS and Node.js are both open source tools. It seems that Node.js with 35.5K GitHub stars and 7.78K forks on GitHub has more adoption than NestJS with 17.4K GitHub stars and 1.22K GitHub forks.

According to the StackShare community, Node.js has a broader approval, being mentioned in 4102 company stacks & 4028 developers stacks; compared to NestJS, which is listed in 12 company stacks and 13 developer stacks.

and welcome back to another blog post. Today I will talk about 2 important technologies for JavaScript, NestJS, and NextJS.

I’m going to talk about what they are, why we use them, and their main components. A Node.js framework for scalable serverside applications with Typescript.

NestJS provides a suite of tools that take advantage of either fastify or express, to facilitate rapid development and readable code.

Supports REST and Graphql for your APIS.

Offers the opportunity to build a full-stack application using the model view controller pattern. NestJS has a ton of built-in modules to work with: Databases, handle security, implement streaming, and much more.

This technology has its own command-line tool: we can create a new project by doing >> nest new my-api .

When we create a project this way, we will be provided with a codebase pre-configured with Jest for testing and setup with Typescript.

A controller is the fundamental building block of the framework.

It is responsible for handling incoming HTTP requests and returning responses back to the client.

To implement a controller we simply do:. Add the controller decorator to a class, then inside the class, we can implement methods and decorate them with HTTP verbs.

Reasons to use Next JS for building your project

By default, that will create an HTTP endpoint on the root URL.

You can pass a string to the decorator to change the route, or implement dynamic route parameters.

Nest also provides other decorators to control status conde and headers inside the class decorated with @controller().

Must Read: 4 JavaScript Frameworks You Should Consider For Your Next Web App

Moreover, parameter decorators can be used to access the request parameters or body.

Lastly, the return value from the method is the response body that gets sent back to the client.

We can use the CLI to automatically generate more controllers to keep your code organized as it grows in complexity. In addition to controllers, there are also providers.

Providers are a class that contains shared logic throughout the whole application and then, they can be injected as a dependency where needed.

Any class with the @Injectable() decorator can be injected into the constructor of another class.

A provider can be implemented as:.

Features

A guard to handle role-based user authentication. As a pipe to efficiently validate and transform values in a controller.

Finally, the module decorator @Module(), allows code to be organized into smaller chunks where it can be lazy-loaded to run faster and in serverless environments.

Allows us to create fast search engine optimize react apps, with zero configuration.

A traditional react app is rendered client-side:.

Where the browser starts with a shell of an HTML page, without any rendered content, from there, the browser fetches the JS file containing the react code to render content to the page and make it interactive.

There are 2 big drawbacks with client-side rendering:.

Some notable Nest JS features

The content is not reliably indexed by all search engines or read by social media link bots. It can take longer to reach the first contentful screen when a user first lands on the web page. Next is a framework that allows you to build a react app but render the content in advance on the server, this way, the user or search bot will see the full rendered HTML as the first thing.