Enhance Hero Error Handling with Custom Error Classes

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Enhance Hero Error Handling with Custom Error Classes

Description

Task

Create custom error classes for hero-specific errors

Acceptance Criteria

• Create base HeroError class
• Implement HeroNotFoundError with dynamic hero name
• Add InvalidHeroDataError with validation reason
• Create UnauthorizedHeroAccessError
• Ensure all errors provide clear, informative messages

Summary of Work

Custom Hero Error Classes Implementation

Changes Made

• Expanded custom error classes in src/errors/hero-errors.ts
• Implemented a robust hierarchy of hero-specific error classes
• Added comprehensive error messaging for different scenarios

Error Classes Overview

1. HeroError: Base class for all hero-related errors

   • Provides a consistent error naming and handling mechanism
   • Allows for centralized error management

2. HeroNotFoundError: Specific error for missing heroes

   • Dynamically includes the hero name in the error message
   • Helps identify exactly which hero was not found

3. InvalidHeroDataError: Error for data validation issues

   • Provides detailed reason for data invalidity
   • Supports granular error reporting for data inconsistencies

4. UnauthorizedHeroAccessError: Error for access control scenarios

   • Generic unauthorized access error for hero resources
   • Supports security and permission-based error handling

Implementation Details

• Used TypeScript for type-safe error definitions
• Maintained a clear inheritance hierarchy
• Ensured each error has a unique, descriptive name
• Implemented constructor methods with meaningful error messages

Testing Approach

• Existing test file src/errors/hero-errors.test.ts covers error class instantiation
• Verified error message generation
• Confirmed proper error inheritance and naming

Benefits

• More precise error handling
• Improved debugging capabilities
• Clear separation of error types
• Enhanced API error responses

Potential Future Improvements

• Add more specific error subclasses as needed
• Implement error logging mechanism
• Create centralized error handling middleware

Changes Made

• Expanded base HeroError class
• Added HeroNotFoundError for missing heroes
• Implemented InvalidHeroDataError for data validation
• Created UnauthorizedHeroAccessError for access control

Tests

• Verify HeroNotFoundError includes correct hero name
• Confirm InvalidHeroDataError captures specific validation reason
• Ensure UnauthorizedHeroAccessError has correct message
• Check inheritance of all custom errors from base HeroError

Signatures

Staking Key

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Public Key

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