Estimated reading time: 6 minutes
Posted on February 1, 2024

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

nestjs developer

The CLI is a single point of truth for command freaks to develop applications with NestJS without much of the GUI interactions. The tool can create and manage any part of the NestJS framework by typing in your terminal commands. Yes, NestJS integrates seamlessly with TypeORM to provide a powerful and flexible ORM solution. Install the necessary packages and configure TypeORM in your application module. NestJS provides a built-in exception handling mechanism to manage errors in your application.

Displaying the video list

nestjs developer

We’ll populate the name of the user who created the video and return this name, createdBy, to the client. NestJS has proven to be the fastest-growing TypeScript framework for building flexible, scalable, large-scale, and enterprise-ready backend applications using Node.js. NestJS is a rapidly growing, open-source framework for building efficient, reliable, and scalable server-side applications. Built on top of Node.js and Express, NestJS leverages TypeScript, offering a structured and maintainable approach to building applications. Once your project is set up, you can create modules, controllers, and providers to build your application’s functionality. Now, let’s create a component to stream any video that a user selects.

nestjs developer

Nest.JS – Tutorial

  • Nest, inside the TodoModule, we imported the todo.module.ts file, this should be done automatically if you use the command above.
  • 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.
  • Account activity is tracked and abuse of copyright taken very seriously.
  • In the scenario of a video app, streaming enables a user to watch a video immediately without first downloading the video.
  • NestJS typescript framework is a backend framework used to create scalable and reliable APIs.

Let us partner with you and your team to develop the most ambitious projects. Lastly, we have the deleteTodo method which implements the Delete method and allows us to delete our Todo. What better way to learn than understanding the theoretical and practical part of a technical topic. This content will give you a clearer overview of FP, RP, and FRP to foster your understanding of the NestJS framework.

nestjs developer

NestJS Tutorial

NestJS works by combining elements from different programmingpattern to create a highly modular and scalable architecture. It uses decorators to define metadata for classes and methods, enabling expressive code. NestJS supports dependency injection, allowing developers to manage dependencies efficiently and create loosely coupled components.

We have already discussed above that controllers in Nest.js are meant to receive incoming HTTP requests from an application frontend and return an appropriate response. The script above installs Nest.js CLI globally and uses the nest command to create a new project with the name nest-todo-app respectively. Let’s apply our knowledge practical to build a Todo application with Nestjs typescript framework. As seen above, different files and folders could be created as the project grows in size and features.

  • Then, we invoke the Signin method in the userService to authenticate the user and return a token to the client if the sign-in is successful.
  • 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!
  • Also, you will learn how to connect a MongoDB database with NestJS and build and deploy a full-blown application to the server.
  • Next, we’ll add an onSubmit event to the form component and bind the handleSubmit handler.
  • Now that we’ve installed the dependencies, let’s set up the Nest server by creating additional folders in the src directory.
  • You will learn the Nestjs typescript framework from scratch to an advanced level and how to install Node.js and set up the NestJS server on your local machine.

NestJS offers a wide range of features and functionalities that you can explore further. Are you a developer looking to build robust, scalable, and maintainable web applications? NestJS is a progressive Node.js framework that combines the power of TypeScript with the elegance of modern JavaScript, making it a fantastic choice for both beginners and experienced developers.

NestJS Tutorial Prerequisites

  • It is an all-in-one typescript web framework that includes tools to handle every possible use case, from data persistence, validation, config management, testing, etc.
  • Controllers handle incoming requests and return responses to the client.
  • We’ll pass in the file fields to the @FileFieldsInterceptor decorator.
  • The tool can create and manage any part of the NestJS framework by typing in your terminal commands.
  • Let us partner with you and your team to develop the most ambitious projects.
  • We specify that email should be unique and converted to lowercase.
  • We’ll send a GET request with axios with the videoId in the URL parameter and the user’s token in the request headers for authorization.

Upon completing the course, your electronic Certificate will be added to your Accomplishments page – from there, you can print your Certificate or add it to your LinkedIn profile. If you only want to read and view the course content, you can audit the course for free. Board Infinity is a full-stack career platform, founded in 2017 that bridges the gap between career aspirants and industry experts. Our platform fosters professional growth, delivering personalized learning experiences, expert career coaching, and diverse opportunities to help individuals fulfill their career dreams. Board Infinity has successfully facilitated over 20,000 career transitions, marking a significant impact in the career development landscape. Our target learner is someone who is interested in web development and has a basic understanding of HTML, CSS, and JavaScript.

Core Concepts of NestJS

In this code, we use the @Res() decorator to send a response to the client, and the @Body() decorator to parse the data in the request body of the Signup route. In this article, we’ll take a deep dive into building the app backend with NestJS, building the app frontend with React, and then deploying the full-stack app. Well, streaming media is one of the most common use cases for data streaming. In the scenario of a video app, streaming enables a user to watch a video immediately without first downloading the video. Learn everything about the schema-first approach to creating GraphQL APIs with NestJS. Learn everything about the code-first approach to creating GraphQL APIs with NestJS.

Before we can start building with NestJS, we need to set up our project. The first step is to ensure you have Node.js installed on your machine. You can check this by running node -v and npm -v in your terminal. Yes, NestJS is designed with nestjs developer a modular architecture, making it an excellent choice for building microservices.