AsyncAPI Specification
generated: '2026-10-25'
method: searched
generator: extract-docs-artifacts.py (local)
source: https://docs.grainfinance.co/webhooks/index.md
sources:
- https://docs.grainfinance.co/webhooks/index.md
- https://docs.grainfinance.co/webhooks/signature-verification.md
- https://docs.grainfinance.co/webhooks/webhook-envelope.md
- https://docs.grainfinance.co/webhooks/events/hedge-cancelled.md
description: Grain sends webhook notifications for key events in the hedge, wallet, and payout lifecycle.
events:
- event: hedge.cancelled
description: Sent when a hedge is canceled by the customer or by the system.
delivery:
auth: HMAC signature
signature: X-Grain-Signature
content_type: application/json
note: Each request also includes X-Grain-Timestamp for replay protection. The signature is computed as HMAC‑SHA256 over "{timestamp}.{raw_json_body}"
using the webhook secret (Verification Token).
docs: https://docs.grainfinance.co/webhooks/index.md
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