Implement Centralized Error Response Utility for CDN File Retrieval Service

[Dewin2309]

Implement Centralized Error Response Utility for CDN File Retrieval Service

Description

Task

Develop a consistent error response mechanism for the CDN file retrieval service

Acceptance Criteria

• Centralized error response mechanism
• Standardized error structure
• Comprehensive error type coverage
• Extensible and flexible design
• Preparation for advanced logging integration

Summary of Work

This pull request introduces a robust, centralized error response mechanism for the CDN file retrieval service, providing a standardized approach to error handling and reporting.

Key Changes

• Created comprehensive error response utility in src/utils/error-response.ts
• Implemented ErrorResponse interface for consistent error structure
• Defined ErrorType enum to categorize different error scenarios
• Developed createErrorResponse() function to generate standardized error responses
• Added handleErrorResponse() function for centralized error logging

Implementation Details

ErrorResponse Interface

• Defines a standard structure for error responses
• Includes status (HTTP status code), code (error identifier), message (user-friendly description), and optional details

ErrorType Enum

Covers key error scenarios:

• NOT_FOUND: 404 errors for missing files
• FORBIDDEN: 403 errors for unauthorized access
• INTERNAL_ERROR: 500 errors for server-side issues
• INVALID_REQUEST: 400 errors for malformed requests

Error Creation and Handling

• createErrorResponse() generates context-specific error responses
• Supports optional detailed error information
• Provides default fallback for unknown error types
• handleErrorResponse() prepares for future logging integration

Testing Approach

• Comprehensive test coverage for error response generation
• Validated error response for each error type
• Ensured consistent error structure and information

Notes

• Current implementation uses console.error() for logging
• Future iterations should replace with a robust logging system
• Error details should be carefully managed to prevent information disclosure

Changes Made

• Created ErrorResponse interface
• Implemented ErrorType enum
• Added createErrorResponse() function
• Added handleErrorResponse() function
• Ensured comprehensive error type coverage

Tests

• Verify each error type generates correct response
• Check error response structure consistency
• Validate error code and message for each error type
• Ensure optional details are handled correctly

Signatures

Staking Key

4eJHgFX9XuS4QYt3jJ1KpqAFkWA1WNqdNaJNeccptn9c: QQe558kkiAiJ74ABe2g16wuaq2dzABYMaGDQjbdHZzPC6sAHSaRmedFJbMBAt1n8pMk1GCqEbP3Seqg6ABvyhqZB5B5GCZLLeY2bTfYL2HX3RxwRyaUt8i53vUQvUNxhPw9DjNcJyG2vmXE7mAmPLrWuZvtpmmLCACkJUxp2CNuiXScGBurbhreiYDJTwTf1gkVZEgmtTq8ne1PYiRyqmirPK7mNokCTyWiXZC9kWvVVeUUXYP3ik1QNjMR65caJknPPUVvjDYwrizhS4L3TGCgjFHot1bPT9HZ7ZnJXFF7oyiWgNVUwaZumYN7GwdXxxvqNxn5Ap1ugnuBqBnC5r2ywdikELVuiggo9M5D9TTN9jhZmiqANEoKCS8e9rAUZeLUc92hF9UvVEk5KUr1wfXzusyXssVmyQ8

Public Key

AR4eSn41nSiWG1NPL51RfnatiKQa6fSFGwPDgEZc2nSB: SKnBnTugroCqPatmWiwmmpEDtGhvouh4GfhFJofLe53eghZZpmjLUFdZaQ7T1Ne9Ua3CiF4H9YqmSvRkcFhism39odJ5gJEhXKhNC9mWS4xok3s4dfEf69bJbqgZMjfQ8Moqgez4sipd9omubVcJYpJmrS8kGwmhU5XtZWvmb3kTvwPCe83jyYkZptXHs5kaxoA3oNyGHsieZTZcndBZD4TJHLkdRyVVPaap4NTzBX8VSJkUy7fazBRPpknT288BpM6tXuRsAUMcTQuRS9yeFxGDL2NttWEzYxznpo4juQAKat3tJX4RJXWzUNQ97GB3MkG2jhmf26A7ZchzsSjxkSZiCarALXBEeC3HzrZX7bNPDTvdyrJ82RV3NsnKmb6ncdNGUMP3ie5JJFrZ2Q6EKL4W862QsGyfc8