CryptoWatchdog

A server-side application developed using Node.js and MongoDB to track cryptocurrency data, including price, market cap, and 24-hour change, and compute statistical information like standard deviation.

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Features

1. Background Job:

   • Fetches current price, market cap, and 24-hour change for Bitcoin, Matic, and Ethereum.
   • Runs automatically every 2 hours using a cron job.

2. REST APIs:

   • /stats: Fetches the latest data for a specific cryptocurrency.
   • /deviation: Calculates the standard deviation of the cryptocurrency's price from the last 100 records.

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APIs

1. /stats

• Description: Fetches the latest data for a specified cryptocurrency.
• Method: GET
• Query Parameters:
  • coin: Can be one of bitcoin, matic-network, or ethereum.
• Sample Request:

  GET /stats?coin=bitcoin
  

• Sample Response:

  {
    "price": 40000,
    "marketCap": 800000000,
    "24hChange": 3.4
  }

2. /deviation

• Description: Calculates the standard deviation of the cryptocurrency's price for the last 100 records.
• Method: GET
• Query Parameters:
  • coin: Can be one of bitcoin, matic-network, or ethereum.
• Sample Request:

  GET /deviation?coin=bitcoin
  

• Sample Response:

  {
    "deviation": 4082.48
  }

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Future Enhancements

1. Add user authentication to restrict access to APIs.
2. Implement a caching layer for frequent API requests.
3. Extend support to additional cryptocurrencies.
4. Add real-time notifications for significant price changes.

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Acknowledgments

• CoinGecko API for cryptocurrency data.
• Node.js and MongoDB for backend development.

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Contact

For any queries or suggestions, feel free to contact:

• Name: Akash Kumar Prasad
• Email: [email protected]