Redeliver an event
⚠️
Preview — this feature is being built; the design below is the spec.
POST https://app.syntic.ai/v1/webhooks/{webhook_id}/deliveries/{delivery_id}/redeliverSend a past event to the endpoint again, as a new attempt with the original syntic-event-id. Use it to replay events missed while your endpoint was down. The payload is the one recorded at the time of the event.
For how this fits into a full workflow, see Webhooks.
Headers
| Header | Required | Value |
|---|---|---|
Authorization | Yes | Bearer <key>: a private inference key (sk_live_...). See Authentication. |
syntic-beta | Yes, while in preview | webhooks-2026-11-01. Without it the call fails with 400 beta_required. See Versioning. |
Path parameters
| Parameter | Type | Description |
|---|---|---|
webhook_id | string | The webhook id, starting with whk_. |
delivery_id | string | Any delivery of the event, starting with dlv_. |
Response
202 Accepted, Content-Type: application/json
{
"delivery_id": "dlv_01JCB9Z1B3D5F7H9K1M3",
"event_id": "evt_01JCA5D7F9H1K3M5P7R9",
"status": "queued"
}Examples
curl -sS -X POST https://app.syntic.ai/v1/webhooks/whk_01JCA4C6E8G0J2L4N6Q8/deliveries/dlv_01JCB2M4P6R8T0V2X4Z6/redeliver \
-H "Authorization: Bearer $SYNTIC_API_KEY" \
-H "syntic-beta: webhooks-2026-11-01"Errors
Errors use the error envelope and carry a request_id. Codes specific to this operation:
| Status | type | code | When |
|---|---|---|---|
| 400 | invalid_request_error | beta_required | The syntic-beta header is missing. |
| 404 | not_found_error | webhook_not_found | No webhook with that id in this workspace. |
| 404 | not_found_error | delivery_not_found | Unknown delivery id, or older than the 30-day log. |
| 401 | authentication_error | invalid_api_key | The key is missing, unknown, revoked or expired. |
| 429 | rate_limit_error | rate_limited | Too many requests; wait for Retry-After. See Rate-limit headers. |
Related
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