Implement Coins List Data Transformation Utility

[Merango]

Implement Coins List Data Transformation Utility

Description

Task

Implement data transformation for coins list

Acceptance Criteria

• Function transforms raw cryptocurrency data
• Supports custom file path configuration
• Provides robust error handling
• Maintains type safety
• Preserves essential coin information

Summary of Work

This pull request implements a robust data transformation utility for converting raw cryptocurrency data into a standardized coins list format.

Changes Made

• Created transformCoinsList() function in src/coins-list-transformer.ts
• Implemented flexible file path handling
• Added comprehensive error handling
• Defined clear TypeScript interfaces for input and output data

Implementation Details

• Function accepts an optional file path parameter
• Defaults to project root's crypto-prices.json if no path provided
• Transforms raw coin data to a consistent format
• Preserves essential coin information: id, symbol, name

Error Handling

• Handles file not found scenarios
• Validates JSON parsing
• Provides clear, informative error messages

Testing Considerations

• Supports custom file path injection for testing
• Gracefully handles different input scenarios
• Provides type safety through TypeScript interfaces

Notes

• Assumes a consistent JSON structure for input data
• Designed to be easily extensible for future requirements

Changes Made

• Created transformCoinsList() function in src/coins-list-transformer.ts
• Implemented TypeScript interfaces for RawCoinData and TransformedCoin
• Added comprehensive error handling for file reading and parsing
• Supported flexible file path configuration

Tests

• Verify transformation of coin data
• Test error handling for invalid JSON
• Test file not found scenario
• Validate output type and structure

Signatures

Staking Key

84mPEB3qLaB2KQr1RXxNgYDF5DSv5ZyuDPpb9qeeNyyT: BHSQJn9fNN5Gv6euTqbJv5hH3YvHwHvHq6BasDbVLHYN2aoEfMvMnSLVtspdGtTi5MfBguK7PcFtDuMTDceFVQoy95nm1L28VynVX9MmQ77avfiddFX4o2rjBBZRtB51sbSeGHfjY36WThpRgj298stxkPqwthXvzNp5ddkNFZ4YqXRegu2ZjKDrrTdvQP1qjvQv6HzLcHX3Rj8c5TVNcTXMwqZadLcDLtuKDqJ3Pjuag7upYCDao8Cn1wfkWEfP9ku8VrdxnT4oBqZzJqqNLqDhyVyoeRJVR4N1qGbchFiov2DRLba8JjYV9hGAG971Mhtq4SpWNd7kxkf9XzwWwH4VNRa7j1exFVh2Ua8vpqqszGQTaQ3aHP3fP8NkDrB8T3qZTb5LWPScbnCYEwz15QASkwcZRN

Public Key

FLcUWedFSfvYeGjtnoXqgNtvtqEBCKwUK7Qn48hGnwsk: 7qZHYVHr9v9M1VSYLvVA7ChFn4ridJmqKKvrqGTmkQykh4cyGQR4rUiA62cedJuspjoPYeVDM1kiELRgnjmqtbPsMQeRodhi7NK62TPZQgj3czrzEvkifKXNEnoj4X4etJrQgTy4egZ8nJP6WcmkBuXVvFG7d9TADvDiqxTyH9tUGEc4ZD2rhAFWSa6q2d17CL5vcJSCzdA4qxtZeQN1ydbiYs2ZYJpJur2zYYK94YECwdnjitajq2ix9YRKuBCt6pZ2BmSKUfQPALekVrZcFuBC9rfrjB2RJnxm2t2rJ6ZjBNPXUpVgiFQ4BAdTAtaFBeBmKiJSEAdeUSjeTXegaiFUFrpAiUFyFE8DkJ1X2b54DV6u9rCBgmpV7LQ8H7ikyrQnfjUcTMxBsHcviKxV9BcaZutMpG