First Leeward

Webhook event

Card Transaction Updated

POSTCARD_TRANSACTION_UPDATED

Fired when a card transaction receives a new lifecycle event (e.g., clearing, reversal, refund).

Body

application/json

idstringrequired

Unique event identifier for idempotency

typestringrequired

Webhook event type

Available options:CARD_TRANSACTION_UPDATED
dataobjectrequired
Show child attributes
triggerEventIdstring<uuid> | nullrequired

ID of the event in events that triggered this webhook, or null when the transaction changed for a reason other than a new lifecycle event. When set, resolve it against events for the event type and amounts.

Response

200Webhook received successfully. Return any 2xx status to acknowledge.