Node.js & Express
Securing Web Apps: Password Hashing, RBAC, OAuth 2.0, and OpenID Connect Explained
Secure web apps with bcrypt password hashing, role-based access control, OAuth 2.0 and OpenID Connect, with code and diagrams.
Node.js & Express
Server-side JavaScript: how the event loop and non-blocking I/O work, building HTTP APIs with Express, middleware, file uploads, authentication with sessions and JWTs, and talking to databases with Prisma and Drizzle.
16 articles
Learning paths in Node.js & Express
Node.js from Scratch
From installing Node.js to understanding why a single thread can serve many requests, and the event loop details that surprise people.
6 partsBuilding APIs with ExpressBuild an HTTP API step by step: routes, parameters, middleware, REST conventions, TypeScript, file uploads and JWT authentication.
7 partsAll Node.js & Express articles
Node.js & Express
Modern Database Access in JavaScript: Prisma, Drizzle, and ORMs Explained
Prisma vs Drizzle for TypeScript: SQL vs NoSQL, data modeling, migrations, and how to choose the right database tool for your project.
Node.js & Express
Blocking vs Non-Blocking Code in Node.js: Why It Makes or Breaks Your Server
Learn how blocking code kills Node.js server performance and how non-blocking async I/O fixes it. Real file and DB examples with benchmarks.
Node.js & Express
REST API Design with Express.js: A Practical Guide to Resources, Routes, and HTTP Methods
Learn REST API design with Express.js. Build a users API with GET, POST, PUT, DELETE routes, correct status codes, and clean route conventions.
Node.js & Express
Express Middleware Explained: How the Request Pipeline Actually Works
Learn what Express middleware is, how next() controls the request pipeline, and see real examples for logging, auth, and validation.
Node.js & Express
Handling File Uploads in Express with Multer: A Complete Developer Guide
Learn how to handle single and multiple file uploads in Express using Multer. Covers storage config, validation, error handling, and serving files.
Node.js & Express
What is Node.js? JavaScript on the Server Explained
Learn what Node.js is, how V8 and libuv power it, and why its event-driven model makes it ideal for I/O-heavy server-side applications.
Node.js & Express
JWT Authentication in Node.js: A Complete Developer Guide
Learn how JWT works and implement stateless authentication in Node.js with Express — login flow, route protection, and complete working code.
Node.js & Express
Creating Routes and Handling Requests with Express.js: A Practical Guide
Learn how to create routes and handle GET/POST requests in Express.js. Includes raw Node.js comparison, complete working code, and routing best practices.
Node.js & Express
Setting Up Your First Node.js Application: A Step-by-Step Guide from Install to HTTP Server
Install Node.js, use the REPL, run your first script, and build a working HTTP server from scratch — no frameworks, no dependencies.
Node.js & Express
How Node.js Handles Thousands of Requests on a Single Thread: A Deep Dive into the Event Loop
Learn how Node.js uses the event loop and libuv to handle thousands of concurrent requests on a single thread — with real code examples.
Node.js & Express
URL Parameters vs Query Strings in Express.js: When to Use Each and Why
Learn the difference between URL parameters and query strings in Express.js, when to use each, and how to access them with real working code examples.
Node.js & Express
Sessions vs JWT vs Cookies: A Practical Guide to Choosing the Right Authentication Approach
Understand the real differences between sessions, JWTs, and cookies. Learn when to use each auth approach with working Node.js
Node.js & Express
Async Code in Node.js: Callbacks and Promises Explained with Real Examples
Learn why async code exists in Node.js, how callbacks work, why they fail at scale, and how Promises solve it with real, runnable examples.
Node.js & Express
Setting up Express.js with TypeScript
TypeScript catches Express bugs at compile time, not in production. This guide sets up strict typing, hot-reload dev workflow, and a compiled producti
Node.js & Express
Why Does setImmediate Sometimes Run Before setTimeout(fn, 0)?
Why setImmediate sometimes runs before setTimeout(fn, 0) in Node.js and sometimes after: the event loop phases and timer precision behind it.