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Optimizing Data Analytics in Node.js with DuckDB: A Lightweight In-Process OLAP Solution

By IT From Zero October 14, 2026

When Node.js bottlenecks on aggregating large datasets, DuckDB serves as an ideal in-process solution. Learn how to query millions of Parquet and CSV records directly in sub-seconds.

Artificial Intelligence tutorial - IT technology blog

A Guide to Controlling LLM Output with Outlines: Enforcing 100% Valid JSON Schema and Regex

By IT From Zero October 11, 2026

A complete guide to using the Outlines library to enforce 100% valid JSON Schema and Regex outputs from LLMs, eliminating JSONDecodeError in backend pipelines.

Python

Using Python’s websockets Library: Building Bidirectional Real-Time Applications

By IT From Zero October 7, 2026

A comprehensive guide to Python's websockets library from basics to advanced. Build a broadcast server, handle reconnects with exponential backoff, and configure Nginx for production.

Python

Python Type Hints: Don’t Let ‘NoneType’ Errors Ruin Your Sleep

By IT From Zero September 29, 2026

Type Hints don't just make code look better; they act as a shield against runtime errors. Learn how to use Union, Optional, Callable, and Generic for Enterprise-grade code.

Python

Mastering confluent-kafka in Python: Secrets to Processing Millions of Events per Second

By IT From Zero September 27, 2026

Don't let your database crash from overload! A detailed guide on using confluent-kafka in Python to handle millions of events per second with production-ready configurations.

Python

Implementing Circuit Breaker in Python: Don’t Let a Faulty API Crash Your Entire System

By IT From Zero September 23, 2026

Don't let a slow third-party service bring down your entire application. Learn how to implement the Circuit Breaker Pattern in Python to protect your system.

Security

3 Pro GraphQL Security Tips: Don’t Hand Hackers the Keys to Your Kingdom

By IT From Zero September 23, 2026

Securing GraphQL isn't hard if you know these 3 techniques: Disabling Introspection, limiting Query Depth, and applying Rate Limiting at the Resolver level. Check out the detailed guide with code samples here.

Development

Kysely: A Query Builder Alternative to Prisma and TypeORM for TypeScript Projects

By IT From Zero September 21, 2026

Kysely is the perfect alternative to Prisma and TypeORM. Learn how to build a high-performance Type-safe SQL Query Builder, reduce server RAM, and optimize your Node.js development workflow.

Database

Mastering Database Seeding: Best Practices for Smart and Secure Mock Data

By IT From Zero September 21, 2026

Database Seeding is more than just generating junk data. Learn about Factory Patterns, Deterministic Seeding, and how to protect Production data for professional developers.

Database

Designing Polymorphic Relationships in SQL: 3 Architectures from Production Experience

By IT From Zero September 21, 2026

Learn how to design efficient Polymorphic relationships in SQL. Compare 3 common methods and discover index optimization tips for high-scale systems.