backend – Page 2 – ITFROMZERO

MySQL Deadlock: From a 2 AM Nightmare to a Definitive Resolution Guide

By admin April 18, 2026

MySQL deadlocks aren't scary if you know how to read InnoDB Status logs. Discover 5 practical techniques to reduce transaction conflicts by 80% and optimize high-load systems.

Development

Building Real-time Applications with WebSocket and Node.js: From Chat Apps to 10,000 CCU Dashboards

By admin April 14, 2026

Learn how to build real-time applications from Chat Apps to professional monitoring Dashboards. This article shares experiences in handling memory leaks, scaling with Redis, and optimizing performance for 10,000+ connections.

Development

Refresh Token Rotation: The Ultimate JWT Security Safeguard for Node.js

By admin April 13, 2026

Level up your Node.js security with Refresh Token Rotation. A detailed guide on preventing token abuse while maintaining a seamless user experience.

Python

Regex for Beginners: Deciphering the “Code” and Processing Data in 5 Minutes

By admin April 12, 2026

Master Regex in Python for lightning-fast data processing. A detailed guide from basic syntax to data extraction techniques using real-world examples.

Python

SQLAlchemy ORM: The ‘Gold Standard’ Database Management Solution for Pythonistas

By admin April 11, 2026

Say goodbye to messy manual SQL queries. This A-Z SQLAlchemy ORM guide helps you manage databases in Python professionally, securely, and efficiently for DevOps.

Development

Building Efficient RESTful APIs with Node.js and Express: Design, Authentication, and Versioning

By admin April 7, 2026

After 6 months running a Node.js/Express API in production, this post distills what actually matters: structuring routes properly for REST, validating input with Joi, JWT authentication, and managing versioning so you never have to break existing clients.

Python

Building ‘Blazing Fast’ APIs with FastAPI and Pydantic: From Zero to Production

By admin April 1, 2026

Building high-performance Python APIs is easy with FastAPI and Pydantic. This detailed guide covers setup, data validation, and expert async/await optimization.

Docker

Docker for Beginners: Understanding Containers, Images, and Volumes from Scratch

By admin March 5, 2026

Docker solves the classic 'it works on my machine' problem by packaging your entire application into isolated containers — far lighter than VMs. This guide walks you through installing Docker on Ubuntu, explains the core concepts of Images, Containers, Volumes, and Networks, and shows you how to monitor containers in a real-world environment.