Natural Gas API - Live Henry Hub & NYMEX Prices | From $15/month

Example 2: Natural Gas Alert System (Node.js)

const axios = require('axios');

class NaturalGasAlertSystem {
  constructor(apiKey, alertThreshold) {
    this.apiKey = apiKey;
    this.alertThreshold = alertThreshold; // e.g., 3.50
    this.baseUrl = 'https://api.oilpriceapi.com/v1';
  }

  async checkPriceAlert() {
    try {
      const response = await axios.get(`${this.baseUrl}/prices/latest`, {
        params: { by_code: 'NATURAL_GAS_USD' },
        headers: { 'Authorization': `Bearer ${this.apiKey}` }
      });

      const currentPrice = response.data.data.price;
      const changePercent = response.data.data.diff_diff || 0;

      console.log(`Current Price: $${currentPrice}/MMBtu`);
      console.log(`24hr Change: ${changePercent > 0 ? '+' : ''}${changePercent}%`);

      if (currentPrice >= this.alertThreshold) {
        this.sendAlert(currentPrice, changePercent);
      }

      return { price: currentPrice, change: changePercent };
    } catch (error) {
      console.error('Error checking price:', error.message);
      throw error;
    }
  }

  sendAlert(price, change) {
    console.log('\n🚨 PRICE ALERT 🚨');
    console.log(`Natural Gas reached $${price}/MMBtu (threshold: $${this.alertThreshold})`);
    console.log(`Change: ${change > 0 ? '+' : ''}${change}%`);
    // Add your notification logic here (email, SMS, webhook, etc.)
  }

  // Monitor price every 5 minutes
  startMonitoring(intervalMinutes = 5) {
    console.log(`Starting price monitoring (threshold: $${this.alertThreshold}/MMBtu)`);
    this.checkPriceAlert(); // Check immediately
    setInterval(() => this.checkPriceAlert(), intervalMinutes * 60 * 1000);
  }
}

// Usage
const alertSystem = new NaturalGasAlertSystem('YOUR_API_KEY', 3.50);
alertSystem.startMonitoring(5); // Check every 5 minutes