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Example 10: Comprehensive Error Handling

Overview​

The error handling framework provides consistent, informative error management throughout the application, with appropriate logging, user notification, and recovery strategies.

Implementation​

Exception Hierarchy​

Structured exception types:

  • Business exceptions
  • Integration exceptions
  • Validation exceptions
  • System exceptions

Error Capture​

Comprehensive error capture:

  • Global exception handlers
  • Try-catch patterns
  • Async error handling
  • Event error handling

Logging Strategy​

Detailed error logging:

  • Structured logging
  • Context capture
  • Stack traces
  • Performance impact

User Notification​

Error Presentation​

User-friendly error display:

  • Clear messages
  • Resolution guidance
  • Contact information
  • Error codes

Severity Levels​

Appropriate response by severity:

  • Information
  • Warning
  • Error
  • Critical

Recovery Strategies​

Automatic Recovery​

Self-healing capabilities:

  • Retry logic
  • Fallback options
  • Circuit breakers
  • Compensation

Manual Recovery​

User-guided recovery:

  • Recovery wizards
  • Data restoration
  • Configuration reset
  • Support tools

Monitoring​

Error monitoring:

  • Error rates
  • Pattern detection
  • Alert generation
  • Trend analysis

Benefits​

The framework provides:

  • Consistent error handling
  • Improved reliability
  • Better user experience
  • Effective troubleshooting

Summary​

The comprehensive error handling framework ensures reliable operation with appropriate error management, logging, and recovery capabilities throughout the application.