Astrology API Webhooks & Event-Driven Architecture

Event-Driven Astrology

Traditional astrology APIs are request-response: you ask, they answer. Event-driven architecture flips this — the system notifies your app when astrologically significant events occur. This enables features like transit alerts, dasha period change notifications, and retrograde warnings.

Building Transit Alert System

// Transit alert worker (runs daily via cron)
async function checkTransitAlerts(users) {
  const today = new Date().toISOString();

  for (const user of users) {
    const transits = await fetch('https://api.vedika.io/v2/astrology/transits', {
      method: 'POST',
      headers: { 'X-API-Key': apiKey, 'Content-Type': 'application/json' },
      body: JSON.stringify({
        datetime: today,
        latitude: user.birthLat, longitude: user.birthLng,
        timezone: user.birthTz,
        birthDatetime: user.birthDatetime
      })
    }).then(r => r.json());

    // Check for significant transits
    const alerts = transits.filter(t =>
      t.type === 'conjunction' || t.type === 'opposition' ||
      t.planet === 'Saturn' || t.planet === 'Jupiter'
    );

    if (alerts.length > 0) {
      await sendPushNotification(user.id, formatTransitAlert(alerts));
    }
  }
}

This pattern enables personalized daily notifications that keep users engaged. Combine with AI interpretation (Vedika chat endpoint) to provide context-rich alerts instead of raw astronomical data.

Pro tip: batch API calls by grouping users with similar birth data. Users born on the same day in the same timezone share identical transit patterns, reducing API calls by 80-90%.