Skip to content

0009-error-handling-strategy.md

Latest commit

 

History

History
104 lines (77 loc) · 2.16 KB

0009-error-handling-strategy.md

File metadata and controls

104 lines (77 loc) · 2.16 KB
Raw

9. Error Handling Strategy

Status

Proposed

Context

CodeFlow needs a consistent approach to handle errors across different components and services while providing meaningful feedback.

Decision

We will implement a comprehensive error handling strategy with the following components:

Error Classification

  1. Domain Errors

    • Business rule violations
    • Validation failures
    • Resource not found

  2. Infrastructure Errors

    • Database connection issues
    • Network timeouts
    • External service failures

  3. Security Errors

    • Authentication failures
    • Authorization violations
    • Rate limiting

Error Response Format

{
  "error": {
    "code": "RESOURCE_NOT_FOUND",
    "message": "The requested resource was not found",
    "details": {
      "resourceType": "repository",
      "id": "12345"
    },
    "documentationUrl": "https://docs.codeflow.dev/errors/RESOURCE_NOT_FOUND",
    "requestId": "req_1234567890",
    "timestamp": "2025-01-01T12:00:00Z"
  }
}

Implementation

  1. Error Factory

    class ErrorFactory {
  static createError(type: ErrorType, message: string, details?: any): AppError {
    return new AppError({
      type,
      message,
      details,
      timestamp: new Date(),
      code: this.getErrorCode(type),
    });
  }
}

  2. Global Error Handler

    • Log errors with context
    • Convert to appropriate HTTP status codes
    • Mask sensitive information
    • Generate error IDs for correlation

  3. Retry Policies

    • Exponential backoff for transient errors
    • Circuit breaker pattern
    • Dead letter queues for failed operations

Consequences

Positive

  • Consistent error responses
  • Better debugging with correlation IDs
  • Improved user experience
  • Easier monitoring and alerting

Negative

  • Additional complexity
  • Performance overhead
  • Learning curve for new developers

Neutral

  • Documentation requirements
  • Testing strategy needed

Related Decisions