[WIP] Enhance Error Handling and Response Mechanisms for File Operations

[Jesco39967]

Enhance Error Handling and Response Mechanisms for File Operations

Description

Summary of Work

This pull request introduces a comprehensive error handling system for file-related operations in our CDN file retrieval service. The changes focus on:

1. Implementing a robust file access error handling mechanism
2. Creating a centralized error response utility
3. Improving error logging and reporting

Key Improvements:

• Added FileAccessError class for specific file access errors
• Created a middleware for handling file-related errors
• Developed a standardized error response utility
• Implemented error logging with contextual information

The new error handling system provides:

• Consistent error responses
• Detailed error logging
• Improved security by masking internal error details
• Better debugging capabilities

Changes Made

• Added TypeScript error handling middleware in src/fileErrorHandler.ts

  • Implemented custom FileAccessError class
  • Created checkFileAccess utility function
  • Added error handling middleware with specific error responses

• Enhanced error response utility in src/utils/error-response.js

  • Defined standardized ERROR_TYPES
  • Created createErrorResponse function for consistent error formatting
  • Added createErrorLog function for logging errors with context

Architectural Improvements:

• Separation of concerns between error handling and error response
• Type-safe error handling in TypeScript
• Flexible error response mechanism

Tests and Verification

Verification Steps:

• Reviewed TypeScript type safety
• Manually tested error scenarios:
  1. File access denied
  2. Resource not found
  3. Internal server errors

Test Coverage:

• Existing test files:
  • test/error-response.test.js
  • tests/fileErrorHandler.test.ts

Recommended Further Testing:

• Add more comprehensive unit tests for edge cases
• Implement integration tests for error handling middleware
• Verify error logging functionality

PRs Merged

The following pull requests have been merged:

Signatures

Staking Key

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Public Key

FW9rRVZ6RiCk64CB7tiCVXGd7i2DYEM3TZo9urWxChSb: qqMV31sPHb291DMJtVJvkQhVDSZ3e7S6c3tDVMMLUJyZZaHGnRnXgTbjT7wGfSbi1MP1vttGeuSngNczp1xVseVUHPoBjWdTeS46eKBPo5DpbCo2t2ebj8iuBrTsjJPENKiQqdcZ1a4HRLMNXYxurxJWNpbz5jy9Cnn8wpRt9o3QT5NJG95iBJiQqaqZ3pLmMetVisqUDWkveZDWGYMRriWKmYBKVAcjhASye9aRuwA6FrApwkczXobSE8BhNnHcHAQHbZ3PBA3sta5cVRddKCjQghpbRnbcsyESf6vUWjBzWvQu2E5cqM591NuMxrAS5CajvX5K6dHA7WZ9viJkaxSSX9rpYEFUUfoSReKWv16Kw5MV2jkMNT2QoCtpadCCHvVnkfUSugg2ZxAB6U8AVcrKAnVEUYT9LDZbEc