签名、重放保护、重试，直到 2xx。
订阅发票/订单/退款事件。验证端点中的 HMAC-SHA256。 每次交付均经过 HMAC-SHA256 签名、加盖时间戳，并以指数回退方式重试，直到您的端点返回 2xx。
order.paid
A buyer's checkout finalised. Settled on-chain.
order.refunded
Refund pushed back to the buyer's wallet.
order.delivered
Auto-delivery completed - key, file, or webhook handed over.
order.failed
Checkout expired or rejected.
product.created
Product published from API or dashboard.
product.updated
Any field on a product changed.
payout.queued
Payout request accepted, broadcast pending.
payout.confirmed
Payout confirmed on-chain.
customer.created
New buyer email registered in your shop.
# Standard headers Sellix sets on every delivery X-Event-Id: evt_01J2PT83A5XKJZ5N6FM5YV9B2D X-Event-Type: order.paid X-Webhook-Timestamp: 1779604200 X-Signature: sha256=8f7a9a2b… Content-Type: application/json User-Agent: Sellix-Webhook/1.0 # Body - JSON, the resource that fired the event { "id": "evt_01J2PT83A5XKJZ5N6FM5YV9B2D", "type": "order.paid", "data": { "order_uuid": "…", "total_cents": 4900, … } }
粘贴有效负载+秘密。我们使用 Web Crypto API 在您的浏览器中实时计算签名 - 我们的 SDK 在您的服务器上使用相同的算法。
8 attempts per delivery1m → 2m → 5m → 15m → 1h → 6h → 24hX-Event-Id on your side. Same id twice = same event.200 - it's a feature, not a duplicate.