Automate Webhook Responses
Instant webhook debugging in real-time. Configure custom status codes and JSON payloads to simulate backend behavior without writing server code.
Configure Response Logic
Define precise conditions for incoming payloads and dictate exactly how WebhookLab replies. Match headers, validate JSON schemas, or trigger responses based on query parameters.
The visual rules engine lets you chain multiple conditions using AND/OR logic. Set HTTP status codes (200, 401, 503), inject dynamic variables like `{{timestamp}}` or `{{request_id}}`, and define retry intervals for load testing. All changes apply instantly to your active endpoints. Use the secondary controls to toggle rule priority or schedule maintenance windows.
Common Automation Patterns
E-Commerce
Payment Gateway Simulation
Return `200 OK` with a `{"status": "captured", "amount": 49.99}` payload when the incoming `idempotency_key` matches your test suite. Simulate declined transactions by routing `card_type: "declined"` to a `402 Payment Required` response.
DevOps
CI/CD Pipeline Health Checks
Automatically reply with `204 No Content` to GitHub Actions ping events. Inject a `{"build": "success", "duration_ms": 1240}` JSON object when the webhook path contains `/deploy/staging` to unblock your deployment gates.
QA Testing
Rate Limiting & Error Injection
Trigger a `429 Too Many Requests` response after three consecutive payloads within 500ms. Use the `{{random_int(100, 999)}}` variable in your JSON body to test how your frontend handles unpredictable error codes.