In this tutorial, we'll create a simple RESTful API using Node.js and Mongoose, a MongoDB object modeling tool designed to work in an asynchronous environment. We'll set up a basic Node.js server, define a schema using Mongoose, and create endpoints for CRUD operations (Create, Read, Update, Delete) on a "Todo" resource. Prerequisites Node.js installed…
Cypress is a modern end-to-end testing framework designed to provide an easy and reliable way to test your web applications. In this tutorial, we'll cover the basics of Cypress and how to get started with writing tests. We'll go through installation, creating test files, writing tests, and running them. Prerequisites Basic understanding of JavaScript…
Introduction:In any web application, data validation plays a crucial role in ensuring the integrity and security of the data being processed. Node.js, with its extensive ecosystem, offers several libraries for data validation. One such popular library is Validator.js, a lightweight library for string validation and sanitization. In this tutorial, we will explore how to…
D3.js (Data-Driven Documents) is a JavaScript library for manipulating documents based on data. It enables you to create interactive and dynamic data visualizations in web browsers. In this tutorial, we'll cover the basics of D3.js step by step. Prerequisites Before starting with D3.js, ensure you have the following: Basic understanding of HTML, CSS, and…
In this tutorial, we'll explore how to implement authentication in a Node.js application using JSON Web Tokens (JWT). JSON Web Tokens are a compact, URL-safe means of representing claims to be transferred between two parties. We'll cover the basics of JWT, how to generate and verify tokens, and integrate them into a simple Node.js…
In this tutorial, we'll explore how to build a web application using Node.js and Nest.js. Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine, which allows you to build scalable and efficient server-side applications. Nest.js is a progressive Node.js framework for building efficient, reliable, and scalable server-side applications. Prerequisites Before we get…
Introduction In this tutorial, we'll explore how to generate PDF documents dynamically in Node.js using PDFKit. PDFKit is a popular library that allows you to create and manipulate PDF documents easily. By the end of this tutorial, you'll be able to create custom PDFs with text, images, tables, and more. Prerequisites Before we get…
Introduction Real-time web applications enable seamless communication between clients and servers, allowing for instant updates and interactions. Socket.IO is a popular library for building real-time web applications in Node.js. In this tutorial, we'll learn how to create a simple chat application using Node.js and Socket.IO. Prerequisites Before we begin, make sure you have Node.js…
Introduction In this tutorial, we will explore how to implement authentication in a Node.js application using Passport.js, a popular authentication middleware for Node.js. Passport.js provides a flexible and modular authentication framework that supports various authentication strategies, such as username/password, OAuth, and OpenID. Prerequisites Before we begin, make sure you have the following installed: Node.js…
Introduction:Node.js is a powerful runtime environment that allows developers to build scalable, high-performance applications. CRON is a time-based job scheduler commonly used in Unix-like operating systems to automate tasks. Combining Node.js with CRON allows developers to schedule and execute tasks at specified intervals, making it ideal for automating repetitive tasks such as data backups,…