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Webhooks push events to your infrastructure so you can react without polling. Reliability hinges on verification, idempotency, and fast HTTP responses—treat the endpoint like a mini product.

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Subscriptions

Create a webhook endpoint and select event types. The platform sends a signing secret for HMAC verification.

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Filtering

Subscribe only to events you handle. Unused events still cost verification CPU and clutter logs.

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Verification

Always validate signatures before processing payloads. Reject stale timestamps when present.

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Clock skew

Allow a small clock skew window between signer and verifier, but bound it to limit replay windows.

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Retries

Failed deliveries retry with exponential backoff. Ensure your endpoint is idempotent.

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Response codes

Return 2xx only after you have safely persisted or handed off work. Use 5xx to signal transient failures worth retrying; 4xx for permanent misconfiguration.