[WIP] Enhance Cryptocurrency Details API with Improved Error Handling and Caching

[Bhing26]

Enhance Cryptocurrency Details API with Improved Error Handling and Caching

Description

Summary of Work

This pull request introduces improvements to the cryptocurrency details API, focusing on:

1. Robust error handling for coin detail retrieval
2. Implementing caching mechanism for performance optimization
3. Preparing for potential future expansion of coin data sources

Key objectives:

• Provide clear, consistent error responses for different scenarios
• Improve API reliability and response times
• Create a flexible architecture for future enhancements

The current implementation uses a mock data approach with in-memory caching, which serves as a solid foundation for further development.

Changes Made

• Added comprehensive error handling in coinDetails route
• Implemented NodeCache for caching cryptocurrency details
• Created input validation for coin ID
• Established consistent error response format
• Added mock data for initial coin details (Bitcoin and Ethereum)

Architectural improvements:

• Separated error handling into a dedicated middleware
• Used lowercase normalization for coin ID lookups
• Implemented a 10-minute cache TTL to balance data freshness and performance

Tests and Verification

Verification steps:

• Manually tested coin details retrieval for existing coins
• Validated error handling for:
  • Empty coin ID
  • Non-existent coin ID
  • Malformed input
• Confirmed caching mechanism works as expected
• Ensured consistent error response formats

Recommended next steps:

• Add comprehensive unit tests for all route scenarios
• Implement actual cryptocurrency data fetching from external API
• Add more robust error logging and monitoring

PRs Merged

The following pull requests have been merged:

Signatures

Staking Key

9yp3ZWyDXaMnp3cDbBT7ALUELNx7AqyrBP3tUmyiTee2: 2sfieFrqQcJfBDp2646aRecay89ZNbH6jastjeBcnYx7YVj6qXPCZMtaMwKQDxVRdeN14EfnRHwrwY4hWVR7dDzXXe7yj8egoWsgcrtZsjBiLfFkU8aHTg4da3FoT5CF5QY2wF79eMv4LrWT4AtBMCMmZeppjum1ANpoH275kwWRDaMy2E8vnNHVc77AGThoLvM5qVrWm5RyhEDZv8CCynMYKMAu9dSJPAYzBQgAvDBmohzJydQAYfTU9vDKzcyGSovmeMdb8F6MBYriYA7jdKTVVrosJnCQ7vfhdF3542T7cfPxbMV3AfZWDvyNDm9289E1Dhg7BfRwrzQEfDQKWhjwY8Hb3Zb6fCmK2wMPeD5awCt8eNoRiCoV4pAGqiQy35GJf6XkPRsnYsVdhK7mvcZq1SW5xvHr

Public Key

66oeEjuoK4X6yRibgmFsyAYYVVTP6yzBy5ARMaVbkKm8: 2c2sJRpPLsL4wWAx6UEuybuR5Ae7yqYFLqeB5cU6CgD7utp5wsypht3FLs8Jznjd5bfLHkvDkFJxRoGUfdmi5aBHauDRdQqkTFqHgzJQAJ4WsjbhPc8T5vxnCdozqCJcgKovfTRieTuh7kpAHxQ65eBN11qM9GUE3Xmb5wBvf2yMyMDj4WjYWztJFKLznxTMLGMXtn4EVaEic5qLaPMDVGyMtEmDM3PDMQFfLaXWAjHUf7vHTsM6YnvP2h6p1ATHi6exVWTP6yq9zxhPKSWvfZXTb27nVsEQFpq7eDid77Enb24pMnVSaxD7kgPs55Hg63tXruRPbDPPnjBj7mn73q3jhuXvkmWQqKtkZDo4S3PVghSMmALbH5haZR7v2hnWzSpX96Soxem1bhy9yhjxDK1zuQ9i6HU8