Error Handling Patterns

What it does

This skill provides guidance and code examples for implementing robust error handling patterns in backend systems. It helps developers anticipate potential issues, design graceful fallback mechanisms, and provide informative error messages to users or downstream services. The skill covers strategies such as circuit breakers, retries with exponential backoff, and bulkhead patterns.

When to use it

• Building resilient APIs: Implement retry logic and circuit breakers when interacting with external dependencies that might be unreliable.
• Handling unexpected data formats: Design fallback mechanisms to gracefully handle situations where incoming data doesn't conform to expected schemas.
• Creating informative error responses: Generate user-friendly error messages for client applications, while providing detailed logs for debugging purposes.
• Preventing cascading failures: Implement bulkhead patterns to isolate parts of your system and prevent errors in one area from bringing down the entire application.

Key capabilities

• Circuit Breaker Pattern implementation
• Retry with Exponential Backoff
• Bulkhead Pattern design
• Graceful Degradation strategies
• Informative Error Message generation

Example prompts

• "Show me an example of a circuit breaker pattern in Python."
• "How can I implement retry logic with exponential backoff for a database connection?"
• "Suggest a bulkhead pattern to isolate my payment processing service."
• “Give me code for graceful degradation when the external API is unavailable.”

Tips & gotchas

This skill assumes basic familiarity with backend development concepts and programming languages like Python or Go. The specific implementation details will vary depending on your chosen technology stack, so adapt the examples accordingly.