Polygon API

// Fetch stock price data
const headers = { 'X-Api-Key': 'YOUR_API_KEY' };
const symbol = 'AAPL';
const response = await fetch(`https://polygon.io`, { headers });
const data = await response.json();
console.log(`${symbol} price:`, data.price || data.c || data.lastPrice);
console.log('Change:', data.change || data.dp || 'N/A');

// Fetch market overview data
const headers = { 'X-Api-Key': 'YOUR_API_KEY' };
const response = await fetch(`https://polygon.io`, { headers });
const data = await response.json();
const stocks = data.results || data.data || [];
const top = Array.isArray(stocks) ? stocks.slice(0, 5) : [stocks];
top.forEach(s => {
  console.log(`${s.symbol || s.ticker}: $${s.price || s.close || 'N/A'}`);
});

// Monitor stock price and trigger alerts
const headers = { 'X-Api-Key': 'YOUR_API_KEY' };
const symbol = 'TSLA';
const threshold = 200;
const response = await fetch(`https://polygon.io`, { headers });
const data = await response.json();
const price = data.price || data.c || 0;
console.log(`${symbol}: $${price}`);
if (price > threshold) {
  console.log(`⚠️ ${symbol} is above $${threshold}!`);
}