Webhook Catcher – Castov (VS Code Extension)

Local webhook receiver, inspector, and replay debugger for Stripe, GitHub, Shopify, Slack, and custom webhooks. Catch incoming HTTP requests directly inside Visual Studio Code and replay them to your local dev server with one click.

Zero external dependencies, instant local execution, zero cloud relay required.

Powered by Castov.com.

✨ Features

1. 📡 Built-In Local Webhook Receiver

• Runs a lightweight HTTP receiver directly inside VS Code (default http://127.0.0.1:9090/webhook).
• Automatically increments port if 9090 is occupied.
• Captures full HTTP headers, method, URL path, raw payload, and parsed JSON.

2. 🔍 Auto-Detect Provider & Event Type

• Stripe: Identifies type (e.g. payment_intent.succeeded, checkout.session.completed, customer.subscription.created) and extracts stripe-signature.
• GitHub: Identifies X-GitHub-Event (e.g. push, pull_request, issues, workflow_run) and parses webhook signatures.
• Shopify: Identifies X-Shopify-Topic (e.g. orders/create, products/update) and webhook domain.
• Slack: Detects event subscriptions and Slack verification tokens.

3. 🔁 1-Click Replay to Localhost

• Replay any captured webhook to your active development server (e.g. http://localhost:3000/api/webhook).
• Automatically preserves source headers and signatures for webhook validation testing.
• Tracks response status codes, execution duration (ms), and server responses.
• Auto-Forward Mode: Automatically forward every incoming webhook to your backend in real time!

4. 📋 Instant cURL Generator

• Generates exact, copy-pasteable curl commands with all headers, auth signatures, and body payloads to debug in terminal or Postman.

⌨️ Commands

📄 License

MIT © Castov