slog

Lesson in the Go Roadmap · Stage 31: Standard Library

Last updated 14 September 2026

What is slog?

Structured logging package introduced in Go 1.21. Provides leveled, structured logging with JSON output support. Better than basic log package for production use. Supports custom handlers, context integration, and performance optimization. Modern replacement for traditional logging.

Study this in the interactive course See the whole Go roadmap

Free resources to learn slog

Official docsStructured Logging with slog
ArticleLogging in Go with Slog: The Ultimate Guide
ArticleEffective Logging in Go: Best Practices and Implementation

slog: common questions

Can I learn slog in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain slog in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this slog tutorial for beginners?

It is lesson 114 of 172 in the free Go roadmap, in stage 31, Standard Library. If you are new to Go, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.