error interface

Lesson in the Go Roadmap · Stage 22: Using 3rd Party Packages

Last updated 14 September 2026

What is error interface?

Built-in interface with single Error() string method. Any type implementing this method can represent an error. Central to Go's error handling philosophy, providing consistent error representation across all Go code. Fundamental for effective error handling.

Study this in the interactive course See the whole Go roadmap

Free resources to learn error interface

Official docsError Handling and Go
ArticleThe Error Interface
ArticleMastering Error Handling in Go: A Comprehensive Guide
ArticleErrors and Exception Handling in Golang

error interface: common questions

Can I learn error interface 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 error interface 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 error interface tutorial for beginners?

It is lesson 83 of 172 in the free Go roadmap, in stage 22, Using 3rd Party Packages. 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.