Implement Multi-Cryptocurrency Market Data Route

[HermanKoii]

Implement Multi-Cryptocurrency Market Data Route

Description

Task

Create a new route for fetching market data for multiple cryptocurrencies

Acceptance Criteria

• Route successfully retrieves market data for multiple cryptocurrency IDs
• Handles missing ID parameter with 400 error
• Returns 404 for invalid cryptocurrency IDs
• Provides comprehensive market data for valid IDs
• Supports comma-separated list of cryptocurrency IDs

Summary of Work

This pull request documents the implementation of a comprehensive market data route for fetching multiple cryptocurrency market details in the CoinGecko mock API.

Changes Made

• Implemented GET /market-data route in src/routes/marketData.js
• Added robust input validation for cryptocurrency IDs
• Created error handling for various scenarios
• Supported fetching market data for multiple coins

Implementation Details

• Route accepts a comma-separated list of cryptocurrency IDs via query parameter
• Uses cryptoPrices data source for market information
• Validates input before processing
• Handles scenarios:
  1. No IDs provided (400 error)
  2. Invalid coin IDs (404 error)
  3. Successful retrieval of market data

Validation Checks

• Input validation ensures only valid cryptocurrency IDs are processed
• Returns appropriate error responses for invalid inputs
• Supports partial failure scenarios with clear error messages

Testing Coverage

• Unit tests cover multiple scenarios:
  1. Successful retrieval of market data
  2. Error handling for missing IDs
  3. Handling of invalid cryptocurrency IDs
  4. Mixed valid and invalid ID scenarios

Performance Considerations

• Uses efficient array and object manipulation
• Minimal computational overhead
• Quick response times for market data retrieval

Notes

• Uses mock data from crypto-prices.json
• Easily extensible for future enhancements

Changes Made

• Implemented GET /market-data route in src/routes/marketData.js
• Added input validation for cryptocurrency IDs
• Created comprehensive error handling
• Supported fetching market data for multiple coins
• Ensured consistent response formatting

Tests

• Validate successful market data retrieval for multiple coins
• Test error handling for missing cryptocurrency IDs
• Verify response for invalid cryptocurrency IDs
• Check handling of mixed valid and invalid ID scenarios

Signatures

Staking Key

3JF13GJW2UeYuTTRJQBdBD9bHP6Zj1QLMyXBMoAP2r5Y: Z7WzoucZEg9YZPn5cU9BwsaeyzRqnT5eJxBoUVMWoaVQ2R9oT2KFh4wUQ6K54veVpzi3GoMSVF13MpUrXupHbnQuGtaVYagqmT4FHLw1aogwHYqCnSx7fM6BgtRVuymYEXrc7H1zXsq49s6awCu58iw3syEC9uWvG2WaQJxjxjDU9peLFRTZTuJhXHLe7HtFdy8HfzPYAybR2dQTpzWDteRuVft1ij3CDs46Lf6ygoNhoVcEqCpqGbashdQM5A4fVF6avnCg78huyNiNDzEKVi7w8LYpW5ChuoYTnhbjAk3bvhh3bEKqJEVzYZmtoGQKudkWtCbHK49EptXi96xfwdXVPzwBfCWdVav5CfwZeQfu7MqjGfjiMGiKwS8TXG7xNHXRh8ZCmHrPJ19uhshFF157GkSRQYDVyn

Public Key

H2j8Cz7zKCeuDTs73vtjDtBmtytQX1JyaQqvYwwQWE6p: 5SsG5XHcyTxuDyk3oumWuk4ZPgQrdp4pgqg2mGtAJz7WmVJD9EL8MQCK4FW7AZhNmbuePQdY7ikaAAnqqRhVDKFivZqSRYoYRHgAB6t1g5MNt7B25JVCJa84MwGb6M2Hknz1KKbTXuv7KFvMfMCnM7YVoKX2uiwRBTBm4hQQX5ZKR61C4iUS3MNQGbhumKxaLFFxi2DHg7n5jrAqXs19ouyJsgm6etoaA9Uh3oDF51wGGMHoRPfWSwWHcVa9FPTyJixVdMo9Bh54ouMHonSexVfHMm9WrzAQJtJNThP4egoEeiDmKiq7np6dmu1B3tdNqWQDtUWCCuGmoDHjbN3VJHLUwXyZvgoTtnV9fzG4NNqrvmi28Yn3Jahz8vuZm1sn3hSNhKwPBRnEPMcL2yn7wwodMQuSg2qtYU