SendGrid Webhooks

When to Use This Skill

• Setting up SendGrid webhook handlers for email delivery tracking
• Debugging ECDSA signature verification failures
• Processing email events (bounce, delivered, open, click, spam report)
• Implementing email engagement analytics

Essential Code

Signature Verification (Manual)

SendGrid uses ECDSA (Elliptic Curve Digital Signature Algorithm) with public key verification.

// Node.js manual verification
const crypto = require('crypto');