Implement Coins List Endpoint with Pagination and Sorting

[HermanKoii]

Implement Coins List Endpoint with Pagination and Sorting

Description

Task

Create a new route for coins list endpoint that returns a list of available cryptocurrencies from the existing crypto-prices.json data

Acceptance Criteria

• Endpoint returns list of cryptocurrencies
• Supports market cap-based sorting
• Implements pagination
• Handles edge cases and invalid inputs
• Provides clear error responses

Summary of Work

This pull request adds a comprehensive coins list endpoint that retrieves cryptocurrency data with advanced filtering and pagination capabilities.

Changes Made:

• Implemented getCoinsList function in src/routes/coins.ts
• Added support for pagination and sorting in the coins list endpoint
• Integrated with existing crypto-prices.json data source
• Updated route configuration in src/routes/index.ts

Implementation Details:

• Endpoint: /coins/markets
• Supports query parameters:
  • order: Sorting order (default: 'market_cap_desc')
  • per_page: Number of results per page (min: 1, max: 250, default: 100)
  • page: Page number for pagination (default: 1)
• Implemented robust error handling
• Sorts coins by market capitalization
• Provides paginated results

Potential Improvements:

• Add more advanced filtering options
• Implement caching for improved performance
• Add support for additional sorting criteria

Changes Made

• Added getCoinsList function in src/routes/coins.ts
• Implemented pagination and sorting logic
• Updated route configuration in src/routes/index.ts
• Added error handling for coins list endpoint

Tests

• Verify coins list endpoint returns correct number of results
• Test pagination functionality with different page and per_page values
• Validate sorting by market cap in ascending and descending order
• Check error handling for invalid input parameters

Signatures

Staking Key

3JF13GJW2UeYuTTRJQBdBD9bHP6Zj1QLMyXBMoAP2r5Y: HgySJASzxerYsEHKV3RQduDUfXLXRNxtB67xfTbBeEkL8ty8USRaivm2ECDG2qZqGjSbQtRXVAmLadnWcBGwU6pmdTov1DHDaQrT6m8UyCuyx2YXCvXvYN9pU11WvB4659zFZJVgjHLh3EKsbY5SFazQCE9xE5AsnZZPVsUYq3VBpDUUrj4KBSsNDLEC7Kt9C6TTq2P6Ks6cGruLYdyiy7i6b3pDEva97PhRi3BS5c65uCg5CNB4cuvFbcCNQcSbXdQ9PeKamFFCz3yVTsfLGZgEDveLA2weFuWhqEXpsJZzXaWa3Ga5MGFvw3R8rNwN7VQjT9w1E4i8Smd5gkuNvuDpCUxRhpxxafE6fdZW3XfTdMGKjLZm5H39t5q612zKPCkoUG6jsCBqx7G37jN1ce37H5KMtqHUQU

Public Key

H2j8Cz7zKCeuDTs73vtjDtBmtytQX1JyaQqvYwwQWE6p: 37DYv55LKtp9gtuJCaY6tqci6ZYzoFKbLrfTRzRDypDEjhwzuHpXY54g6xjRGYZ6A2bw5ZSHLxuzac34XeR8afLZAu6Qktcnbg3i1ri1wcqArrn7RVioawuJsygkhMK8VMJ8R8X5WdKCS64odWGYSb5BaAKEKCCt9X59GmpMAeKj1NYXCmUhBw3jz5x5AwXWcwCLKXujPU9W9k6ET5KFFzWfJMTffxjJgrWkhHtmuS34ybnEJNje8SHZG749zCvSywaoY6zfiuN7jxCstSD83HMeUcGhWyvCGBT1cE1PpsHK4MrpX4XLDZLcSwZapAGiCJhYfys4x9WSzTvvVix5JqUdQAn2HNjERHunpjZvUcdpXm8dvfiX2LL22D3K1GbU53MmmG5KXFZU6Aj7GzKPMbo398fry2Uycg