Getting Started with NestJS: A Powerful Framework for Building Scalable Node js Applications by Lovish Kumar

We also specify that the current date should be used for the createdDate field’s default date. To install and configure a new NestJS project, we’ll use Nest’s command-line interface. Learn how to create your own hand-written Authentication and Authorization with NestJS. Take full control over your Authn/Authz from access to refresh tokens, and everything in between.

• This tutorial will discuss the most important problem that NestJS solves in the backend web development ecosystem → Architecture.
• Aside from these general features of NestJS, many great features come with using NestJS for your project that we didn’t list out.
• A publication for sharing projects, ideas, codes, and new theories.
• NestJS is a powerful framework for building efficient and scalable server-side applications.
• Nest core team members can work directly with your team on a daily basis to help take your project to the next-level.

Why you should learn NestJS

This Nest.js tutorial will demonstrate how to use Nest.js to create a simple Todo application. This will create a new file named cats.controller.ts inside the src folder with a basic controller template. In the world of server-side JavaScript development, Node.js has redefined how web applications are built.

Testing NestJS Applications

We’ll use Mongoose to connect the application to the MongoDB database. Once the installation of the dependencies is complete, we’ll set up a Nest server for the project. Prepare for an in-depth guided course & walk-through about the complex world of Microservices, setting up our own Microservice system with NestJS, all from the ground-up! Learn directly from the NestJS Creator – Kamil Mysliwiec himself, and Mark Pieszak (Core Team Member). From N-Tier, Hexagonal, Domain Driven-Design, and so much, you’ll be ready to build world-class NestJS / Node.js systems in no-time!

Introduction to Nest.js — A Framework for Node.js

We’ll query the database to get the video’s details according to id. If the video id is found, we get nestjs developer the initial range value from the request headers. Then we’ll use the video details to get the video from the file system.

• The command above will generate a new module named todo.module.ts for the application and update the root module for it by automatically importing the newly created TodoModule.
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• Next, we’ll create the streamVideo function to send a video as a stream to the client.
• In this tutorial, we introduced NestJS as a framework for building scalable Node.js applications.
• NestJS is a Node.js framework built with TypeScript, combining elements from both OOP (Object Oriented Programming), FP (Functional Programming), and FRP (Functional Reactive Programming).
• Then, we’ll create the readVideo function to get video details based on the id in the request parameter.

Each purchase is limited to ONE license & user viewing the course. Account activity is tracked and abuse of copyright taken very seriously. If you are purchasing for larger teams (10+) shoot us an email at to retrieve a large-team discount code. Services in Nest.js handle any complex business logic data manipulations for a specific purpose and return the appropriate response to the controller. We can leverage the nest command to create, generate and modify Nest.js controllers, which can also help us generate some boilerplate codes.

Advanced NestJS Guide

• Build REST APIs, GraphQL APIs, Queues, and real-time & event-driven applications in no time.
• NestJS is a progressive NodeJS framework for building efficient, reliable, and scalable server-side applications.
• We demonstrated this concept by building a full-stack video streaming application using NestJS and React.
• You can download an official certificate of completion that can be used to be reimbursed by your employer or land that dream job you are applying for.

In Module 1, we’ll get you started with NestJS, covering the fundamentals and project setup. Module 2 delves into more advanced concepts, including services, middleware, and exception handling. A progressive Node.js framework for building efficient and scalable server-side applications. Let’s create a VideoList component to display the videos to users. Open the Component/Video/VideoList.js file, import axios, useParams, useEffect, and useNavigate.

Lastly, we create our first DTO (data transfer object) to help define how data will be sent over the network and control how data will be posted from the application to the database. Most importantly, every operation is performed inside the service class, which helps us separate business logic from actual data manipulation. The command will create two files, namely todo.controller.spec.ts and todo.controller.ts. Next, the app.module.ts is the root module of the application and app.service.ts is the service/data model logic of the application.