Mapping Go Domain Errors to HTTP Status Codes at the Boundary
📰 Dev.to · Gabriel Anhaia
Learn to map Go domain errors to HTTP status codes at the boundary for cleaner code and better error handling
Action Steps
- Define typed sentinel errors in your Go domain using custom error types
- Use errors.As to wrap and unwrap errors for better error handling
- Create a translation function at the handler edge to map domain errors to HTTP status codes
- Apply this translation function to handle errors in your API handlers
- Test your error handling to ensure correct HTTP status codes are returned
Who Needs to Know This
Backend developers and software engineers can benefit from this approach to keep their Go domain code organized and focused on business logic, while handling errors in a standardized way at the API boundary
Key Insight
💡 Use a single translation function at the handler edge to map domain errors to HTTP status codes for cleaner code and better error handling
Share This
Keep HTTP status codes out of your Go domain and handle errors at the boundary #golang #errorhandling
Key Takeaways
Learn to map Go domain errors to HTTP status codes at the boundary for cleaner code and better error handling
Full Article
Keep HTTP status codes out of your Go domain. Typed sentinel errors, errors.As, and one translation function at the handler edge.
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