Implement Centralized Error Response Utility for CDN Service

[ItsHugoo]

Implement Centralized Error Response Utility for CDN Service

Description

Task

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

Acceptance Criteria

• Centralized error response mechanism is implemented
• Error messages are securely sanitized
• Multiple error response methods are available
• Error responses have consistent structure
• Sensitive information is automatically redacted

Summary of Work

Overview

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

Key Features

• Standardized error response structure
• Secure error message sanitization
• Comprehensive error handling methods
• Flexible error reporting mechanism

Implementation Details

Error Response Utility (src/utils/error-response.ts)

• Created HttpStatusCode enum for standardized HTTP status codes
• Defined ErrorResponse interface for consistent error response structure
• Implemented ErrorResponseUtil class with the following methods:
  1. send(): Core method for sending standardized error responses
  2. sanitizeErrorMessage(): Prevents information leakage by redacting sensitive details
  3. Predefined error methods:
     • notFound()
     • badRequest()
     • internalServerError()

Security Considerations

• Error messages are sanitized to prevent information disclosure
• Sensitive system information is automatically redacted
• IP addresses are masked in error messages
• Consistent error response structure prevents potential information leaks

Testing Approach

• Verified error message sanitization
• Tested different error scenarios
• Ensured no sensitive information is exposed
• Validated response structure and status codes

Notes

• The utility supports custom error codes and messages
• Easy to integrate with existing Express.js middleware
• Follows best practices for error handling in web applications

Changes Made

• Created centralized error response utility
• Implemented error message sanitization
• Added predefined error response methods
• Created HttpStatusCode enum
• Defined ErrorResponse interface

Tests

• Verify error message sanitization
• Test different error response methods
• Ensure no sensitive information is exposed
• Validate error response structure

Signatures

Staking Key

HtDSDViFnKSD9X2TD1kTZAtkF7xHJrjBLntr8z4BZpfb: 6ehfpP9Bri2XJMhbzSuDQiGSgKRDqfAtJmS4USbYvtKiFNfCCY66Gr7h3jw7YJ4rh14ThAsdR7wfrZP2Ctot2JUwGRgbkEqyjzmo6KGKwNFBtndpaKx1dESZmRcvAP7G1HUnHi35Qpn26EaYYNsfySwQac8wCcHXt9mfFPyzPRBPsVFxveMiPnpN2n2ppZ9vcjcuQjkKDpgVJqDYsE2rbuX7arzmYM6gqcxn8WsinFhHTX6MCLkGhboBjci4ZUGRnhgaUHq6eio91SoLxUsgX8qvpR2XcLnS5L4rAjt1x3x2KrcjupCRpgcyndUZsruAyHwsKH6MW7Gy2qJeJn4GRdxPMHe8NNhoi4BDpu4eeieLynyVhc62ZpPrKUDZKDBe23eaadDbAYg7gwEVJyDZVpM11PSo7NYip

Public Key

4g6jT7dSFNEy2NafTaQb6oe2M73jZjfznuz9WTfvKvyg: 2zhM4ohaDzC4UsfKBMtkktDwy1E6ZA5tK7Aaf2nms9A5S8TeQuGhfZrNyk9kw9q3DNpkAuBXx7FK8odybmW44Wf4i1K1brNVgwHiy7FbNEHzhgTFf6XhYoQX6KY4eYVbmh7uSAHXxigQSJZ8HCnH5ayFhy6NUiuEmYg55vAAT9jwTenuKMkxvNFQzHz5swseechEgvbZRXPKRZ4y4LBWTVBTmFdUF2uZHgiowAfBab6S4V5GXgJXRWKs1sS2yD4GCKKQvh73og5s7H1yGzzaNkiFvvD8K9k6NDFfHXsR7CgZsBNFoSZdXntFN1kVpbFgP896vKeayqHFgS3nnD7sq6vm3Pjq3QKxNjqAh4tPtC3hzkzEsCaUvk1FtqgD6uoKHvcTiSUXA5C27cEYCr3jbBvzYe8zbBjqe