Implement a travel insurance claims webhook handler for automatic claim submission on flight delay events

Verified steps

1. After a policy is purchased via the Battleface Partner API (POST /policies), register the policy for flight monitoring by submitting the insured flight details — carrier, flight number, date, and passenger details — to the policy flight registration endpoint.
2. Set up a webhook endpoint in your infrastructure to receive Battleface claim event callbacks; register your webhook URL in the Battleface partner portal and note the shared secret for signature verification.
3. On receipt of a claim_triggered event (sent when the monitored flight delay exceeds the policy threshold), validate the webhook signature using the shared secret; parse the payload for policy_id, claim_id, delay_minutes, and payout_amount.
4. Update your booking record to reflect the triggered claim and payout status; notify the passenger that a claim has been filed on their behalf and provide the claim_id for reference.
5. For policies requiring customer evidence submission (non-parametric products), construct the claim evidence package — boarding pass, delay certificate, booking confirmation — and submit via POST /claims/{claimId}/evidence.
6. Track claim resolution via GET /claims/{claimId}; on status change to paid, confirm the payout method (bank transfer or card refund) and close the claim in your records.