Webhooks
Withdrawal failed
The network rejected the transfer and the funds were returned to your balance. This also carries reversals initiated on the network side.
The HTTP body is this object exactly — there is no envelope and no type field. The event name is delivered in the X-Webhook-Event header. Most optional fields arrive as an explicit null; a few keys are dropped from the JSON entirely when unset, and those are marked as such below. Read values with a null-safe accessor rather than testing key presence.
postWebhookWITHDRAWAL_FAILED
Payload
Response
Return a 2xx status to acknowledge receipt.
Changes
Webhooks have no change history: a webhook is keyed by its event name rather than a path and method, so no recorded change can name it.