Author: Arunangshu Das

Uploading files is a common requirement in many web applications. Whether you’re building a profile picture uploader, a document management system, or a cloud storage service, you’ll need to handle file uploads efficiently and securely. In Node.js, one of the most popular libraries for handling file uploads is Multer. What is Multer? Multer is a middleware for handling multipart/form-data, which is primarily used for uploading files. It is written on top of the busboy library and makes it easy to handle file uploads in Node.js applications. Setting Up Multer Before we start, make sure you have Node.js and npm (Node…

In web development, choosing the right API architecture can significantly impact the performance, scalability, and overall user experience of your application. Two popular paradigms, GraphQL and REST, often come up in discussions about building efficient and responsive frontends. Both have their strengths and weaknesses, and the choice between them can be critical. Introduction to REST and GraphQL REST (Representational State Transfer) REST is an architectural style for designing networked applications. It relies on a stateless, client-server communication protocol, typically HTTP. In RESTful services, resources are represented by URLs, and interactions with these resources are performed using standard HTTP methods like…

In the world of web development, enhancing user experience is paramount. One significant trend that has gained traction is the implementation of dark mode. Dark mode not only reduces eye strain in low-light environments but also conserves battery life on OLED and AMOLED screens. T 1. Understanding Dark Mode Dark mode is a display setting where the background is dark and the text is light. This inverse color scheme helps in reducing the blue light emitted from screens, thus minimizing eye strain. 2. Basic Implementation of Dark Mode Step 1: Setting Up Your HTML and CSS To start, we need…

React has been a dominant player in the front-end development space for years, consistently pushing the boundaries of what web applications can achieve. The release of React 18 brings with it a slew of new features and improvements that are set to revolutionize the way developers build and optimize their applications. 1. Automatic Batching One of the most anticipated features in React 18 is automatic batching. In previous versions, React would only batch state updates that occur within event handlers. However, with React 18, state updates from any context (including promises, timeouts, native event handlers, or any other event) will…

In today’s digital age, the demand for robust, scalable systems is more pressing than ever. With the proliferation of frameworks that promise to handle traffic automatically, one might question the need for scaling systems manually or at all. However, while these frameworks offer significant advantages, they do not entirely eliminate the necessity for deliberate and thoughtful system scaling. A Backend can scale your business whereas a frontend can quickly acquire more and more customers. Here’s why: The Illusion of Automatic Scaling Modern frameworks such as Kubernetes, AWS Lambda, and Azure Functions have revolutionized the way developers approach traffic management. They…

Managing cookies and tokens is a critical aspect of web development, playing a crucial role in securing user data and maintaining session integrity. Whether you’re dealing with short-term access tokens, long-term refresh tokens, or user preferences, knowing where and how to store these pieces of information can make a significant difference in the security and performance of your application. Understanding Cookies Cookies are small pieces of data stored on the client side. They have several key attributes: Types of Cookies Access Tokens and Refresh Tokens Access Tokens: These tokens are used to authenticate API requests. They typically have a short…

The software development lifecycle (SDLC) is a structured approach to developing software applications. This process encompasses a series of stages that guide software developers from initial concept through to deployment and maintenance. Understanding each stage is crucial for the successful delivery of high-quality software. 1. Requirement Gathering and Analysis Overview The first stage in the SDLC involves gathering business requirements from stakeholders and analyzing them to ensure a clear understanding of what needs to be built. Key Activities Tools and Techniques 2. System Design Overview This phase involves creating a blueprint for the system. The design phase translates requirements into…

In the technological landscape, a backend developer’s role has transcended beyond mere coding and debugging. Backend developers are now pivotal figures in the digital transformation of industries, acting as the managers of digitization and key decision-makers in the technological ecosystem. Their expertise in managing databases, server logic, and integration of various systems makes them indispensable in ensuring seamless digital operations. Here’s why a good backend developer is the most crucial figure in any industry’s digital transformation journey. The Architect of Digital Infrastructure Designing Robust Systems A good backend developer is akin to an architect who designs the blueprint of a…

In the modern digital era, a company’s frontend — the user interface and experience of a website or application — is more than just the face of the brand. It’s the gateway to customer engagement, the cornerstone of user interaction, and a pivotal element in business success. Understanding the multifaceted role of the frontend in customer acquisition, retention, and overall business improvement is essential for any business aiming to thrive in today’s competitive environment. The Power of First Impressions Human psychology plays a significant role in how users perceive and interact with digital interfaces. According to research, users form an…

In JavaScript, one interview question that often pops up aims to test your understanding of asynchronous behavior and the event loop. Consider the following code snippet: At first glance, you might expect the output to be “a”, “b”, “c”, “d”, “e”, because “c” is set to log after 0 milliseconds. However, when you run this code, the output is actually: abdec Why does this happen? Let’s unravel the mystery behind this sequence by delving into the core mechanics of JavaScript’s event loop. Synchronous vs. Asynchronous: The Key Difference JavaScript operates on a single-threaded model, which means it can only execute…