The Node.js Event Loop ExplainedOne of the most important concepts in Node.js is: The Event Loop It’s the reason Node.js can: handle thousands of requests process async operations efficiently remain responsive with a single JavaSMay 9, 2026·6 min read·2
Handling File Uploads in Express with MulterFile uploads are one of the most common backend features. Examples: profile pictures resumes PDFs product images videos But uploading files in Express is different from handling normal JSON datMay 9, 2026·5 min read·3
What is Node.js? JavaScript on the Server ExplainedToday JavaScript is everywhere. It powers: websites APIs mobile apps desktop applications real-time systems But originally, JavaScript had only one job: Run inside browsers. So how did JavaScMay 9, 2026·5 min read·3
Creating Routes and Handling Requests with ExpressWhen people first build servers using Node.js, they usually start with the built-in http module. It works, but very quickly the code becomes difficult to manage. Example raw Node.js server: const httpMay 9, 2026·5 min read·1
JWT Authentication in Node.js Explained SimplyAlmost every application today needs authentication. Examples: social media apps banking systems admin dashboards e-commerce platforms Without authentication, the server cannot answer an importaMay 9, 2026·6 min read·16
Setting Up Your First Node.js Application Step-by-StepWhen people first hear about Node.js, they usually think: “It lets JavaScript run outside the browser.” And that’s exactly what it does. Node.js is a JavaScript runtime that allows you to: build seMay 9, 2026·5 min read·2
How Node.js Handles Multiple Requests with a Single ThreadOne of the most confusing things about Node.js is this: “Node.js is single-threaded.” And immediately another question appears: “Then how can it handle thousands of requests at the same time?” At May 9, 2026·5 min read·3