GoLang Archives

Programming tutorial - IT technology blog

Mastering Golang Memory Profiling: A Practical Guide with pprof

September 3, 2026

Master Golang memory profiling using pprof to identify leaks and optimize performance. Learn how to use heap profiles, flame graphs, and practical coding patterns to keep your Go applications lean.

Programming

Stop OOM Crashes: Mastering Go 1.23 Iterators and Range-over-func

August 21, 2026

Go 1.23 introduces range-over-func, a powerful feature that prevents OOM errors by streaming data. Learn how to implement iter.Seq to handle millions of records with constant memory overhead.

Database

PocketBase Tutorial: Build a Real-Time Database and Backend with a Single Executable File

August 19, 2026

PocketBase bundles a SQLite database, REST API, authentication, file storage, and real-time subscriptions into a single executable file. This tutorial walks you through getting it running in minutes, building collections, handling auth, and deploying to production.

Programming

Beyond Println: Building Professional Go CLIs with Bubble Tea

August 12, 2026

Ditch the static text walls. Learn how to use Bubble Tea and The Elm Architecture to build interactive, stateful, and testable CLI applications in Go.

Programming

Scaling Go Applications: A Practical Guide to HashiCorp go-plugin

August 8, 2026

Ditch the brittle native Go plugin system. This guide shows you how to use HashiCorp go-plugin to build a scalable, RPC-based architecture that supports cross-language extensibility and process isolation.

Programming

Mastering Go Error Handling: A Guide to errors.Is, errors.As, and Custom Wrappers

June 9, 2026

Learn how to handle errors effectively in Go using modern techniques. This guide covers the differences between sentinel errors, wrapping with %w, and using errors.Is and errors.As for robust production code.

Programming

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.

DevOps

Docker Multi-stage Build and Distroless Images: Shrink Your Container to Just a Few MB

May 25, 2026

Learn how to use Docker multi-stage builds and distroless base images to shrink your container from 1 GB down to just a few MB — with real Dockerfile examples for Go, Node.js, Python, and Java. Includes security hardening tips and CVE reduction techniques for production deployments.

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.