Replay all recently failed deliveries

Bulk sibling of the single replay: creates FRESH PENDING deliveries for this endpoint's FAILED/DISABLED deliveries created at or after `since`, skipping every event that already has a PENDING/DELIVERING delivery queued for this endpoint (no double-enqueue) — hard-capped at 1000 replays per call (call again with the same `since` for the rest; already-replayed events are skipped by the pending check). Repeating the call is naturally near-idempotent for the same reason, so this route does not use the Idempotency-Key ledger. Does NOT re-enable a disabled endpoint — the “re-enable & replay” console flow is: update `enabled: true` (which resets the failure counter), then call this.

{
  "type": "object",
  "properties": {
    "since": {
      "type": "string",
      "format": "date-time",
      "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$",
      "description": "Only FAILED/DISABLED deliveries created at or after this ISO-8601 instant are replayed.",
      "example": "2026-07-24T00:00:00Z"
    }
  },
  "required": [
    "since"
  ],
  "description": "Time window for the bulk replay."
}

{
  "type": "object",
  "properties": {
    "replayed_count": {
      "type": "integer",
      "minimum": -9007199254740991,
      "maximum": 9007199254740991,
      "description": "How many FRESH PENDING deliveries this call created (capped at 1000 per call)."
    }
  },
  "required": [
    "replayed_count"
  ],
  "additionalProperties": false,
  "description": "Result of a bulk replay of failed deliveries."
}

curl -X POST https://app.nowgetitdone.com/v1/webhook-endpoints/whep_a1b2c3/replay-failed \
  -H "Authorization: Bearer gid_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "since": "2026-07-24T00:00:00Z"
  }'