NodeJS

Node.js is a powerful, open-source runtime environment that allows developers to execute JavaScript on the server side. Built on Chrome’s V8 engine, it excels at building scalable, high-performance network applications using an event-driven, non-blocking I/O model. It is the ideal choice for creating APIs, real-time applications, and microservices.

10 articles

25/11/2019 1 min read

Nodemon not refreshing page automatically

while setting up a MERN app, i was using nodemon to reflect code edits and render the new code in real time. I used npm i…
14/12/2018 6 min read

Graceful Shutdown and Process Signals in Node.js

Graceful shutdown for Node.js and Express: SIGTERM handling, keep-alive sockets, closing the pool last, readiness checks and Docker…
12/12/2018 6 min read

Node.js Performance: Clustering, Worker Threads, and What Actually Helps

Real benchmarks of the cluster module and worker threads on Node 10, plus event loop lag checks, PM2…
10/12/2018 8 min read

Testing Node.js APIs with Jest and Supertest

Testing an Express API with Jest and Supertest: app factory, auth helpers, error paths, a real database and…
07/12/2018 10 min read

JWT Authentication in Node.js and Express: Step by Step

JWT authentication for Express, step by step: bcrypt passwords, short-lived tokens, verify middleware, roles, refresh tokens and token…
05/12/2018 9 min read

How to Connect Node.js to PostgreSQL: pg, Pooling, and CRUD

Connect Node.js to PostgreSQL with pg 7: one PostgreSQL pool, parameterized CRUD, a transaction helper and constraint errors…
03/12/2018 9 min read

Node.js Environment Variables and Secrets: dotenv and Best Practices

Environment variables in Node.js with dotenv 6: a .env.example contract, a validated Joi config module, fail-fast startup and…
30/11/2018 10 min read

Node.js Error Handling and Middleware: A Practical Guide

Central error handling middleware for Express 4: AppError, the async error trap, RFC 7807 Problem Details, request ids…
28/11/2018 13 min read

Building REST API Endpoints in Node.js and Express: Routes, Controllers, and Best Practices

How I structure an Express REST API on Node 10: routes, Joi validation, thin controllers, services and correct…
26/11/2018 1 min read

Start a basic server using express

Express is an amazing framework. We can start running a server by writing only 4 lines of code.…