Cryptocurrency Data Fetcher

• Overview: A server-side website that retrieves real-time cryptocurrency data for Bitcoin, Matic, and Ethereum using the CoinGecko API.

• Key Features:

  • Fetches the latest cryptocurrency statistics, including price, market cap, and 24-hour change.
  • Runs a background job every 2 hours to automatically update and store data.
  • Provides two API endpoints:
    • /stats: Returns current data for a specified cryptocurrency.
    • /deviation: Calculates the standard deviation of prices from the last 100 records.

• Technologies Used:

  • Node.js and Express.js for server-side development.
  • MongoDB (or another database) for data storage.
  • Axios for making API requests to CoinGecko.
  • Cron for scheduling background jobs.

• Setup Instructions:

  1. Install dependencies using npm install.
  2. Configure your database connection in a .env file.
  3. Start the server with npm start.

• API Endpoints:

  • /stats?coin=bitcoin: Returns the latest price, market cap, and 24-hour change.

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

  • /deviation?coin=bitcoin: Returns the standard deviation of the price based on the last 100 records.

    {
      "standardDeviation": 4082.48
    }

This project offers an efficient way to access real-time cryptocurrency statistics, making it a valuable resource for developers and enthusiasts.