supabase-webhooks-events

jeremylongshore's avatarfrom jeremylongshore

Implement Supabase webhook signature validation and event handling.Use when setting up webhook endpoints, implementing signature verification,or handling Supabase event notifications securely.Trigger with phrases like "supabase webhook", "supabase events","supabase webhook signature", "handle supabase events", "supabase notifications".

⭐878stars🔀101forks📁View on GitHub🕐Updated Jan 4, 2026

When & Why to Use This Skill

This Claude skill provides a comprehensive framework for implementing secure Supabase webhook integrations. It streamlines the process of cryptographic signature verification and event handling, ensuring that your backend services can safely react to database changes and external triggers while preventing unauthorized access and replay attacks.

Use Cases

  • Secure Backend Automation: Implement robust signature validation to ensure that incoming webhook requests are legitimately sent from Supabase, protecting your infrastructure from spoofing.
  • Real-time Data Synchronization: Trigger custom business logic, such as updating search indexes or syncing third-party CRMs, immediately after data modifications occur in your Supabase tables.
  • Automated Notification Systems: Build reliable event-driven workflows to send transactional emails, Slack alerts, or push notifications based on specific database insert, update, or delete events.
  • Idempotent Event Processing: Utilize the provided guidelines to handle duplicate event notifications gracefully, ensuring system stability and data consistency in distributed environments.
namesupabase-webhooks-events
description|
allowed-toolsRead, Write, Edit, Bash(curl:*)
version1.0.0
licenseMIT
authorJeremy Longshore <jeremy@intentsolutions.io>

Supabase Webhooks Events

Prerequisites

  • Supabase webhook secret configured
  • HTTPS endpoint accessible from internet
  • Understanding of cryptographic signatures
  • Redis or database for idempotency (optional)

Instructions

Step 1: Register Webhook Endpoint

Configure your webhook URL in the Supabase dashboard.

Step 2: Implement Signature Verification

Use the signature verification code to validate incoming webhooks.

Step 3: Handle Events

Implement handlers for each event type your application needs.

Step 4: Add Idempotency

Prevent duplicate processing with event ID tracking.

Output

  • Secure webhook endpoint
  • Signature validation enabled
  • Event handlers implemented
  • Replay attack protection active

Error Handling

See {baseDir}/references/errors.md for comprehensive error handling.

Examples

See {baseDir}/references/examples.md for detailed examples.

Resources