Create dashboard app to display shipped order data from Neon DB

[Copilot]

This PR implements a complete dashboard application to display shipped order data from a Neon PostgreSQL database. The solution includes a Node.js backend API, responsive frontend, and comprehensive testing infrastructure.

Features Implemented

🎯 Core Requirements

• Tabular Data Display: Orders displayed in a clean table format with column headers
• Chronological Sorting: Most recently shipped orders appear at the top
• Decimal Formatting: All monetary values rounded to 2 decimal places
• Header Title: "Fulfilled Orders" prominently displayed
• Data Validation: Comprehensive validation with fallback values for missing data
• Logging: Detailed console logging for data retrieval operations

🚀 Technical Implementation

• Backend: Express.js server with PostgreSQL client for Neon database
• Frontend: Responsive HTML/CSS/JavaScript with modern UI design
• Database: Full PostgreSQL integration with SSL support
• Environment Config: .env file support with PG_DB_URL variable
• Health Monitoring: Real-time database connection status
• Auto-refresh: Dashboard updates every 5 minutes

📊 API Endpoints

• GET / - Dashboard homepage
• GET /api/orders - Retrieve shipped orders (sorted by shipped_date DESC)
• GET /api/health - Database connection health check

🧪 Testing Infrastructure

• Database Test: npm run test-db validates connection and creates sample data
• Health Checks: API endpoint monitoring
• Error Handling: Comprehensive validation throughout

Project Structure

ShippedDataDashboard/
├── public/
│   ├── index.html      # Dashboard frontend
│   ├── styles.css      # Responsive styling
│   └── script.js       # Frontend JavaScript
├── src/
│   └── server.js       # Express server
├── test/
│   └── database-test.js # Database connectivity tests
├── .env.example        # Environment template
└── README.md          # Comprehensive documentation

How to Test

1. Environment Setup:

   cp .env.example .env
   # Edit .env with your Neon database URL

2. Test Database Connection:

   npm run test-db

3. Start Application:

   npm start

4. Access Dashboard:

   • Main dashboard: http://localhost:3000
   • Health check: http://localhost:3000/api/health
   • Orders API: http://localhost:3000/api/orders

Database Schema

The application expects an orders table with the following structure:

CREATE TABLE orders (
    id SERIAL PRIMARY KEY,
    order_number VARCHAR(50) UNIQUE NOT NULL,
    customer_name VARCHAR(100) NOT NULL,
    product_name VARCHAR(200) NOT NULL,
    quantity INTEGER NOT NULL,
    unit_price DECIMAL(10, 2) NOT NULL,
    total_amount DECIMAL(10, 2) NOT NULL,
    shipped_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    tracking_number VARCHAR(100),
    status VARCHAR(20) DEFAULT 'shipped'
);

Screenshot

The dashboard features a professional design with:

• Gradient header with "Fulfilled Orders" title
• Real-time connection status indicator
• Responsive table layout with all required columns
• Error handling and loading states
• Clean, modern UI that works on all devices

Fixes #1.

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.