Real-time crypto price tracker built with Express and EJS. It pulls market data from CoinGecko, renders price cards, and shows a 7-day chart for a single coin.

• Node.js + Express + Axios
• EJS views with partials
• 7-day sparkline charts for coins
• Coin search by id (e.g., bitcoin, ethereum)
• Server refreshes market data every 30 minutes
• Static assets in public/ (images, styles)
• Environment configuration via .env

• Node.js (16+ recommended)
• npm

1. Install dependencies

npm install

2. Create a .env file

PORT=3000
COINGECKO_URL=https://api.coingecko.com/api/v3
API_KEY=your_demo_or_pro_key

3. Start the app

npm start
# or
node index.js

4. Open http://localhost:3000 (or the port you set)

• GET / Home page
• GET /prices Market list (top 12 by market cap)
• GET /search?query=coin-id Single coin chart (7 days)

.
|-- .env
|-- .gitignore
|-- index.js
|-- package.json
|-- README.md
|-- public/
|   |-- images/
|   |-- styles/
|       |-- main.css
|       |-- coin.css
|-- views/
|   |-- index.ejs
|   |-- prices.ejs
|   |-- coin.ejs
|   |-- partials/
|       |-- header.ejs
|       |-- footer.ejs

• CoinGecko rate limits apply; use an API key if required.
• Check package.json for available npm scripts.

Netlify does not read your local .env file in production. Set these in the Netlify UI or CLI so Functions can access them at runtime:

• COINGECKO_URL = https://api.coingecko.com/api/v3
• API_KEY = your CoinGecko key

CLI example:

netlify env:set COINGECKO_URL https://api.coingecko.com/api/v3
netlify env:set API_KEY your_demo_or_pro_key

Submit issues or pull requests. Keep changes focused and include tests where appropriate.