Development Archives - Page 4 of 32 - ITFROMZERO

Guide to the Python Cryptography Library: AES, RSA Encryption, and Secure Key Management

By IT From Zero October 14, 2026

A practical guide to data encryption in Python with the cryptography library: Master AES-GCM, RSA-OAEP, SHA-256 hashing, and production-grade private key storage.

Development

Implementing the Saga Pattern in Microservices with Node.js: Managing Distributed Transactions

By IT From Zero October 14, 2026

A comprehensive guide to the Saga pattern architecture in microservices using Node.js. Master distributed transaction orchestration, idempotency, and resilient compensating workflows in production.

Development

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.

Python

LiteLLM Python Guide: Standardize 100+ AI Models Through a Single Interface

By IT From Zero October 12, 2026

Compare LLM integration strategies and learn how to use LiteLLM in Python to connect OpenAI, Claude, and Gemini via a unified interface, complete with fallback handling and real-time cost tracking.

Development

A Guide to State Management in React with Zustand: Lightweight and Boilerplate-Free

By IT From Zero October 11, 2026

Overcoming Redux boilerplate with Zustand: a step-by-step guide covering clean hook syntax, selective re-rendering, async actions, and localStorage persistence.

Python

Optimizing PostgreSQL Performance in Python with asyncpg: Resolving I/O Bottlenecks and Ingesting 100k Records/s

By IT From Zero October 9, 2026

Real-world lessons from a production I/O bottleneck: A complete guide to migrating to asyncpg, configuring connection pools properly, and bulk-ingesting 100k records in 0.8s via PostgreSQL binary protocol.

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

DuckDB with Python Guide: Query Multi-Gigabyte CSV/Parquet Files at Lightning Speed Without OOM Errors

By IT From Zero October 7, 2026

Need to process multi-gigabyte CSV or Parquet files on low-spec hardware? Learn how to use DuckDB in Python for blazing-fast analytics without memory crashes.

Development

Integrating Meilisearch into Node.js: Sub-50ms Full-Text Search and Typo-Tolerance as an Elasticsearch Alternative

By IT From Zero October 6, 2026

A step-by-step guide to integrating Meilisearch into Node.js applications to build sub-50ms full-text search with typo-tolerance and minimal RAM consumption compared to Elasticsearch.

Python

Load Testing Systems with Locust in Python: Real-World Scenarios and API Metric Analysis

By IT From Zero October 6, 2026

A comprehensive guide on writing API load testing scripts with Locust in Python. Explore comparisons between JMeter, k6, and Locust, and learn how to interpret RPS and 95th percentile latency metrics.