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Go Error Handling

Verified

by Community

Covers Go error handling best practices including error wrapping with fmt.Errorf and %w, sentinel errors, custom error types, errors.Is and errors.As, and the new error handling patterns introduced in recent Go versions.

goerrorserror-handlingwrappingpatterns

Go Error Handling

Write clean, idiomatic error handling in Go using modern patterns and best practices.

Usage

Ask about error handling patterns or share code for recommendations on proper Go error management.

Examples

  • "How do I wrap errors with context in Go?"
  • "When should I use sentinel errors vs custom types?"
  • "Show me the errors.Is and errors.As patterns"

Guidelines

  • Always wrap errors with context using fmt.Errorf and %w
  • Show proper use of errors.Is and errors.As for checking
  • Recommend sentinel errors for expected conditions
  • Cover custom error types with additional fields
  • Explain when to return errors vs log and continue

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