{
  "api_version": "2026-08-13",
  "fixture_secret": "whsec_fixture_0123456789abcdef",
  "verification_now": "2026-08-13T03:45:00.000Z",
  "cases": [
    {
      "name": "valid",
      "expected": "accept",
      "headers": {
        "X-Locus-Webhook-Id": "11111111-1111-4111-8111-111111111111",
        "X-Locus-Webhook-Timestamp": "1786592700",
        "X-Locus-Webhook-Signature": "v1=ed47ea9bf86dd30fc6e1bd4ecdd79297d407ebbc83ad1c5539e762b7baadb6f7",
        "X-Locus-Webhook-Version": "2026-08-13"
      },
      "raw_body": "{\"id\":\"11111111-1111-4111-8111-111111111111\",\"type\":\"credits.topup.completed\",\"api_version\":\"2026-08-13\",\"created_at\":\"2026-08-13T03:44:55.000Z\",\"sequence\":\"101\",\"tenant_id\":\"aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa\",\"data\":{\"externalUserId\":\"user_123\",\"amountUsd\":\"10.000000\",\"balanceUsd\":\"18.500000\",\"reference\":\"cs_fixture_1\",\"source\":\"checkout_session\",\"metadata\":{\"orderId\":\"order_42\"}}}"
    },
    {
      "name": "invalid_signature",
      "expected": "reject",
      "same_body_as": "valid",
      "override_headers": {
        "X-Locus-Webhook-Signature": "v1=0000000000000000000000000000000000000000000000000000000000000000"
      }
    },
    {
      "name": "duplicate",
      "expected": "verify_then_deduplicate_by_id",
      "same_delivery_as": "valid"
    },
    {
      "name": "delayed",
      "expected": "reject_timestamp",
      "same_delivery_as": "valid",
      "verification_now": "2026-08-13T03:50:01.000Z"
    },
    {
      "name": "out_of_order",
      "expected": "accept_then_buffer_or_reconcile_sequence_101",
      "delivered_before": "valid",
      "headers": {
        "X-Locus-Webhook-Id": "22222222-2222-4222-8222-222222222222",
        "X-Locus-Webhook-Timestamp": "1786592700",
        "X-Locus-Webhook-Signature": "v1=3c985a51ab06554510f92863dda3220ab4bdaee6022683d0d764abd71da17ff5",
        "X-Locus-Webhook-Version": "2026-08-13"
      },
      "raw_body": "{\"id\":\"22222222-2222-4222-8222-222222222222\",\"type\":\"credits.burn.completed\",\"api_version\":\"2026-08-13\",\"created_at\":\"2026-08-13T03:44:56.000Z\",\"sequence\":\"102\",\"tenant_id\":\"aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa\",\"data\":{\"apiCallId\":\"bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb\",\"provider\":\"tavily\",\"endpoint\":\"search\",\"amountUsd\":\"0.117000\",\"balanceUsd\":\"18.383000\",\"mode\":\"end_user\",\"externalUserId\":\"user_123\"}}"
    },
    {
      "name": "retried",
      "expected": "accept_then_deduplicate_by_same_event_id",
      "same_body_as": "valid",
      "override_headers": {
        "X-Locus-Webhook-Timestamp": "1786592760",
        "X-Locus-Webhook-Signature": "v1=1315e2ee09869f462386369e72f32d246113cbc961c532036fd65921c0db4f30"
      }
    }
  ]
}