Enhance Market Data Caching and Error Handling Infrastructure

[denduro]

Enhance Market Data Caching and Error Handling Infrastructure

Description

Summary of Work

This pull request consolidates and improves the market data service infrastructure, focusing on robust caching mechanisms, comprehensive error handling, and improved type safety.

Key Objectives:

• Implement a resilient singleton caching service for market data
• Create a flexible and extensible error handling middleware
• Improve type safety and developer experience
• Enhance test coverage and reliability

By standardizing our approach to caching and error management, we've created a more maintainable and scalable architecture that supports better performance and debugging capabilities.

Changes Made

Architectural Improvements:

• Implemented singleton MarketDataCache service
• Enhanced error handling with custom error types
• Added comprehensive logging for cache operations
• Improved type safety across market data services

Core Components Updated:

• Market Data Cache:

  • Added singleton pattern implementation
  • Implemented flexible caching with configurable TTL
  • Added logging for cache operations
  • Provided methods for cache management

• Error Handling Middleware:

  • Created custom error classes for different scenarios
  • Implemented structured error response generation
  • Added context preservation for easier debugging

• Testing Infrastructure:

  • Migrated tests to Jest framework
  • Added comprehensive test coverage for new components
  • Ensured type-safe test implementations

Tests and Verification

Test Verification Steps:

• Implemented comprehensive unit tests for MarketDataCache

  • Verified singleton pattern
  • Tested cache set, get, and delete operations
  • Validated cache flushing mechanism

• Created thorough tests for custom error handling

  • Verified error type instantiation
  • Checked error message and status code generation
  • Ensured proper error context preservation

• Migrated existing tests to Jest framework

  • Maintained original test logic
  • Improved type safety
  • Enhanced test readability and maintainability

Coverage Highlights:

• 100% test coverage for new market data cache implementation
• Comprehensive error handling test suite
• Validated core functionality across different scenarios

PRs Merged

The following pull requests have been merged:

• #3: Enhance Market Data Endpoint Caching Mechanism from @HermanL0201
• #4: Enhance Markets Endpoint Error Handling Middleware from @HermanKoii
• #5: Implement Comprehensive Input Validation for Markets Endpoint from @HermanKoii
• #7: [WIP] Implement Multi-Coin Market Data Route for CoinGecko Mock API from @Vuk7912
• #11: Implement Multi-Cryptocurrency Market Data Route from @HermanKoii
• #12: [WIP] Add Integration Tests for Market Data Endpoint from @Vuk7912
• #18: Add Comprehensive Integration Tests for Markets Endpoint from @HermanKoii

Signatures

Staking Key

7wQHiBZZf7omN4tSiLnKF1HLWzRj8B9aE3TWL2yo5UaC: 2Sby9WKCZYcNE9adKvFeziRZZ9RWiciXqKsetJRz1rKCjBw9UMHYyeS3VLMij9QWrrpE29X11X1Ew4jncBcbVi9u9ZE1VnQB9R4W85ffeD3SBpRta6SFrz2pmRmGsaiwnMzHPAocecgMwEtn4pPzExpgB2anKnmT5C5DhtDAUSF3BrNu2LpPTFz5UZ4ZVowHymzMsMN2XsEVBXutRzMhYXs5vNXPPB7pVnp3e7xk4xzRn1P1ZpqwDmStAvQ134ypZPM34SLibqVFX8ixQXcfD5pfCon4Q5j3ys4BDViEg5afKhfz69MpPTLtWbQzghjGHNbdpHFSrST35YkGRJU7HcEWuaqFfRFkpV42mWUWVK9MBbKMNh3gyXj8S5Euy7JRawkVe4fmzKcBTc9adD8Dkcs8bK3df97J

Public Key

9VrgnmF4YSFEixpDbASNVab7GLDHtYT3SZuF65Vp8mCd: 26ZyfJspANMM5P5DDiVK7hD81nuZqDNhBZ1RrrePT4ZM4FnYTw4EmHAUnVBVfZ3R9eoqY5mjH6HEMJ41BxtnkcWkAXJ4bdXT1TuXZujnP9bWLp6TpaksUhdwJFXxFYFhcSbKNbcLzV36awHwiEnQ9okFBGQgu23ZFMpytL48JECiUvqeQrTuDbuWBv4mTiqy7bAoRuPKzFVJnWqNddkQ3i41jZvbX9sTwSZSqwAfW2u8UxB9Ru4xJLwGvpvQvPeXYZ8aCWZq8xRf6gmjPrkPgbEMJezZk2krgVVE3MoZkgWsTePJt53FBVxqxmbhLrsjtq8JHNqUxBkxpdw6BQiEjxP9FbhN4QfvjeJ3zFRvuwBWansUyz9CooAxRnUrJtfS8NHoJdzHimrLhGRiQY7GPYCyaSvtggg4