Prompt
webhook endpoint testing
Latest observation
Oct 5, 2026
OpenAI APIWeb search: off
If you want to test a webhook endpoint, here are the quickest ways:
1) Use curl
curl -X POST https://your-webhook-url.example/webhook \
-H "Content-Type: application/json" \
-d '{"event":"test","message":"hello"}'
2) Use Postman / Insomnia
- Create a new
POSTrequest - Set the URL to your webhook endpoint
- Add header:
Content-Type: application/json
- Send a sample JSON payload
3) Quick local listener
If you’re testing your own webhook handler locally:
npx http-server
or better, use a small server like:
npx ngrok http 3000
Then point the webhook provider to the ngrok URL.
4) Verify expected behavior
Check:
- Response status code (
200,204, etc.) - Response body if required
- Logs on your server
- Any side effects (DB writes, emails, etc.)
5) Common things to test
- Valid payload
- Invalid payload
- Missing headers
- Unauthorized request / signature mismatch
- Duplicate delivery
- Slow response / timeout
If you want, I can give you:
- a sample webhook test script
- Postman collection
- or a Node/Python server example for receiving webhooks.