Cryptocurrency Filter and Technical Indicators App

This Node.js application fetches cryptocurrency data from the CoinMarketCap API, filters the data based on user-specified criteria, calculates technical indicators (like RSI), and provides the following functionalities:

1. Console Output: Displays filtered cryptocurrency data as a formatted table.
2. Web Interface: A dynamic web UI for filtering and visualizing cryptocurrencies.

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Features

• Filter Criteria:
  • Market Cap (min/max)
  • Price (min/max)
  • Liquidity
  • Coin Listing Date
  • Platforms
  • Quantity
• Technical Indicators:
  • Average Price: Calculates the average price of filtered cryptocurrencies.
  • Relative Strength Index (RSI): Indicates overbought or oversold conditions.
  • Alerts: Flags coins based on RSI thresholds (e.g., overbought or oversold).
• Web UI:
  • Intuitive interface for setting filter parameters.
  • Interactive table to display filtered cryptocurrencies.
• Console Table: Clean and formatted output using console.table.

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Prerequisites

• Node.js (v14 or higher)
• NPM (comes with Node.js)
• A valid CoinMarketCap API Key.

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Installation

1. Clone the repository:

   git clone https://github.com/sandipkalsait/crypto-dashboard.git
   cd crypto-dashboard
   

2. Install dependencies:

   npm install
   

3. Create a .env file in the root directory:

   COINMARKETCAP_API_KEY=your_api_key
   

4. Start the server:

   npm start
   

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Usage

Web Interface

1. Open your browser and navigate to http://localhost:3000.
2. Use the filter options to set parameters for cryptocurrencies (e.g., min price, max market cap).
3. View the filtered results and technical indicators in the interactive table.

Console Output

1. The filtered results will also be displayed in the console when the server is running.
2. Adjust filter criteria in the getFilteredCoins function in app.js to customize console output.

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File Structure

project-root/
├── public/
│   ├── css/
│   │   └── style.css   # Styling for the web UI
│   ├── js/
│   │   └── script.js   # Dynamic functionality for the UI
├── routes/
│   └── index.js        # Routes for API calls and rendering pages
├── views/
│   ├── index.ejs       # Main UI template
├── .env                # Environment variables (e.g., API key)
├── app.js              # Main application logic
├── package.json        # Project configuration
├── README.md           # Documentation

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Technologies Used

• Node.js: Backend runtime environment.
• Express.js: Web application framework.
• EJS: Templating engine for dynamic HTML.
• Axios: For API requests.
• CSS/JavaScript: For styling and interactivity.
• dotenv: For managing environment variables.

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Future Improvements

• Add more advanced technical indicators.
• Implement a database to store favorite coins or user preferences.
• Enhance UI with additional graphs or charts (e.g., using Chart.js).

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License

This project is licensed under the MIT License. See the LICENSE file for details.