Programming Archives

Programming tutorial - IT technology blog

Building a Rate Limiter from Scratch in Go: Token Bucket Algorithm for API Protection

June 2, 2026

Building rate limiting from scratch reveals what's actually happening inside the libraries you'd normally reach for. This tutorial walks through implementing a concurrent-safe Token Bucket rate limiter in Go — from the core algorithm to HTTP middleware — with practical parameter tuning advice for production use.

Programming

Beyond Basic Interfaces: Building Type-Safe Logic with Advanced TypeScript

May 26, 2026

Move beyond basic interfaces. Learn how to use TypeScript's Conditional, Mapped, and Template Literal types to build scalable, self-correcting codebases.

Programming

Rust’s Secret Sauce: Mastering Ownership and Borrowing Without the Garbage Collector

May 26, 2026

Rust eliminates the need for a garbage collector without sacrificing memory safety. Explore the core principles of ownership, borrowing, and lifetimes with practical examples.

Programming

Go Generics Explained: Write Flexible, Reusable Code and Build Shared Libraries

May 20, 2026

Go generics, introduced in 1.18 (March 2022), solve the long-standing problem of code duplication in statically typed Go. This tutorial covers type parameters, constraints, the tilde operator, and practical examples — including a generic Set, Filter function, and TTL cache — showing how to build reusable shared libraries without sacrificing type safety.

Programming

From Script to Ship: Building Cross-Platform CLI Tools with Go and Cobra

May 15, 2026

Stop fighting 'it works on my machine.' Discover how to use Go and Cobra to build single-binary CLI tools that deploy via GitHub Actions in seconds.

Programming

Stop Fighting Data Validation Bugs: A Deep Dive into Pydantic v2

April 27, 2026

Tired of production crashes caused by dirty data? Learn how Pydantic v2 uses a Rust-powered core to provide lightning-fast, type-safe validation and configuration for modern Python.

Programming

Mastering Python Type Hints and Mypy: Lessons from 6 Months in Production

April 15, 2026

Learn how to master Python Type Hints and Mypy through the lens of a 6-month production review. This tutorial covers everything from basic syntax to advanced Protocols and CI/CD integration for cleaner, bug-free code.

Linux

asdf-vm Guide: One Version Manager to Rule Them All (Node, Python, Go, and Ruby)

April 11, 2026

Tired of juggling nvm, pyenv, and rbenv? Learn how to use asdf-vm on Linux to manage all your programming language versions through a single, lightning-fast interface.

Programming

Python Decorators: Slashing Boilerplate with Logging and Auth

April 5, 2026

Tired of writing the same logging and auth checks? Python decorators can help you slash boilerplate and write cleaner, more maintainable code.

Programming

Building Real-time Apps with WebSocket: A Practical Node.js to Deployment Guide

March 28, 2026

This guide covers building real-time applications with WebSockets and Node.js. It details various real-time approaches, their pros and cons, and a recommended setup featuring Node.js, the `ws` library, PM2, and Nginx. Follow practical code examples from development to a production-ready deployment.