Webhook Payload Missing Required Fields
Handlers expect specific fields (e.g. event type, id, timestamp). Missing or misspelled fields cause validation errors or silent failures.
Common causes
- Sender and receiver disagree on field names (e.g. event_type vs type).
- Required field not included in the payload.
- Nested object structure different from what the handler expects.
How to fix
- Document the expected payload schema and validate incoming payloads against it.
- Use a webhook payload validator to check structure and required fields.
- Align sender and receiver on field names and types (e.g. via OpenAPI or JSON Schema).
FAQ
- Should I validate webhook payloads?
- Yes. Validate JSON syntax and required fields; optionally verify signatures to prevent spoofing.
- What if the provider changes the payload?
- Version the webhook or use a flexible parser; log unknown fields and handle missing ones gracefully.
Fix it now
Try in validator (prefill this example)