| Name | Type | Description | Notes |
|---|---|---|---|
| secret | Option<String> | Must be used by the callback receiver to ensure the delivery comes from BTCPay Server. BTCPay Server includes the BTCPay-Sig HTTP header, whose format is sha256=HMAC256(UTF8(webhook's secret), body). The pattern to authenticate the webhook is similar to how to secure webhooks in Github. If left out, null, or empty, the secret will not be changed. |
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