error-handling-patterns

Master error handling across languages using exceptions, result types, and recovery patterns for resilient applications.

• Handle errors explicitly with result types or exceptions
• Distinguish recoverable vs. unrecoverable errors
• Use custom error classes with context and codes
• Implement retry and circuit breaker patterns

• Use exceptions for unexpected errors, result types for expected failures
• Classify errors as recoverable (network, input) or unrecoverable (OOM, crashes)
• Design clear, structured error messages with codes and details
• Apply retry with exponential backoff for transient failures
• Use context managers or scopes for automatic cleanup
• Chain error handling with result types for composability

1. 1.Choose exception or result type based on error nature
2. 2.Define custom error classes with code, message, and details
3. 3.Apply retry with backoff for network or external service calls
4. 4.Use result types to explicitly manage success/failure flow
5. 5.Design APIs with clear error responses and recovery paths