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Webhook 事件：解释 events 首部插入导致的多处差异

数组按下标逐项比较。在 events 开头插入记录后，后续元素位置移动，会产生多处修改和一个尾部新增；这不等于多条业务记录都发生了真实字段变更。需要按 ID 配对时应先在自己的业务逻辑中处理。

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示例工作台

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运行结果
[
  {
    "op": "replace",
    "path": "/data/events/0/eventId",
    "oldValue": "demo-webhooks-1",
    "value": "demo-inserted"
  },
  {
    "op": "replace",
    "path": "/data/events/0/eventName",
    "oldValue": "演示创建事件",
    "value": "新增演示记录"
  },
  {
    "op": "replace",
    "path": "/data/events/1/eventId",
    "oldValue": "demo-webhooks-2",
    "value": "demo-webhooks-1"
  },
  {
    "op": "replace",
    "path": "/data/events/1/eventName",
    "oldValue": "演示更新事件",
    "value": "演示创建事件"
  },
  {
    "op": "replace",
    "path": "/data/events/1/attempt",
    "oldValue": 3,
    "value": 1
  },
  {
    "op": "replace",
    "path": "/data/events/1/delivered",
    "oldValue": false,
    "value": true
  },
  {
    "op": "replace",
    "path": "/data/events/1/eventType",
    "oldValue": "updated",
    "value": "created"
  },
  {
    "op": "replace",
    "path": "/data/events/1/payload/resourceId",
    "oldValue": "demo-R02",
    "value": "demo-R01"
  },
  {
    "op": "replace",
    "path": "/data/events/1/payload/changes/0",
    "oldValue": "state",
    "value": "name"
  },
  {
    "op": "remove",
    "path": "/data/events/1/payload/changes/1",
    "oldValue": "count"
  },
  {
    "op": "add",
    "path": "/data/events/2",
    "value": {
      "eventId": "demo-webhooks-2",
      "eventName": "演示更新事件",
      "attempt": 3,
      "delivered": false,
      "eventType": "updated",
      "payload": {
        "resourceId": "demo-R02",
        "changes": [
          "state",
          "count"
        ]
      }
    }
  }
]

原例已核验，可修改输入后重新运行。

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01

场景与操作说明

Webhook 事件的投递次数与资源变更内容属于不同层级。此案例只检查事件样本，不向回调地址发送请求，也不证明签名或幂等逻辑正确。

attempt 是演示投递次数，delivered 仅表示样本中的布尔值。

  1. 核对 Webhook 事件 的字段层级，保留 eventId 的字符串类型。
  2. 修改一项输入并运行，观察结果中的值或路径如何变化。
  3. 载入对照样本，复现下面的变化；恢复原例会替换当前输入。
02

对照样本

对照样本交换 A 与 B。观察新增与删除的方向、修改前后值如何反转；没有差异时交换仍无差异。

查看对照输入
{
  "ok": true,
  "data": {
    "events": [
      {
        "eventId": "demo-inserted",
        "eventName": "新增演示记录",
        "attempt": 1,
        "delivered": true,
        "eventType": "created",
        "payload": {
          "resourceId": "demo-R01",
          "changes": [
            "name"
          ]
        }
      },
      {
        "eventId": "demo-webhooks-1",
        "eventName": "演示创建事件",
        "attempt": 1,
        "delivered": true,
        "eventType": "created",
        "payload": {
          "resourceId": "demo-R01",
          "changes": [
            "name"
          ]
        }
      },
      {
        "eventId": "demo-webhooks-2",
        "eventName": "演示更新事件",
        "attempt": 3,
        "delivered": false,
        "eventType": "updated",
        "payload": {
          "resourceId": "demo-R02",
          "changes": [
            "state",
            "count"
          ]
        }
      }
    ],
    "summary": {
      "total": 2,
      "note": null
    }
  }
}
{
  "ok": true,
  "data": {
    "events": [
      {
        "eventId": "demo-webhooks-1",
        "eventName": "演示创建事件",
        "attempt": 1,
        "delivered": true,
        "eventType": "created",
        "payload": {
          "resourceId": "demo-R01",
          "changes": [
            "name"
          ]
        }
      },
      {
        "eventId": "demo-webhooks-2",
        "eventName": "演示更新事件",
        "attempt": 3,
        "delivered": false,
        "eventType": "updated",
        "payload": {
          "resourceId": "demo-R02",
          "changes": [
            "state",
            "count"
          ]
        }
      }
    ],
    "summary": {
      "total": 2,
      "note": null
    }
  }
}

对照样本的实际结果

[
  {
    "op": "replace",
    "path": "/data/events/0/eventId",
    "oldValue": "demo-inserted",
    "value": "demo-webhooks-1"
  },
  {
    "op": "replace",
    "path": "/data/events/0/eventName",
    "oldValue": "新增演示记录",
    "value": "演示创建事件"
  },
  {
    "op": "replace",
    "path": "/data/events/1/eventId",
    "oldValue": "demo-webhooks-1",
    "value": "demo-webhooks-2"
  },
  {
    "op": "replace",
    "path": "/data/events/1/eventName",
    "oldValue": "演示创建事件",
    "value": "演示更新事件"
  },
  {
    "op": "replace",
    "path": "/data/events/1/attempt",
    "oldValue": 1,
    "value": 3
  },
  {
    "op": "replace",
    "path": "/data/events/1/delivered",
    "oldValue": true,
    "value": false
  },
  {
    "op": "replace",
    "path": "/data/events/1/eventType",
    "oldValue": "created",
    "value": "updated"
  },
  {
    "op": "replace",
    "path": "/data/events/1/payload/resourceId",
    "oldValue": "demo-R01",
    "value": "demo-R02"
  },
  {
    "op": "replace",
    "path": "/data/events/1/payload/changes/0",
    "oldValue": "name",
    "value": "state"
  },
  {
    "op": "add",
    "path": "/data/events/1/payload/changes/1",
    "value": "count"
  },
  {
    "op": "remove",
    "path": "/data/events/2",
    "oldValue": {
      "eventId": "demo-webhooks-2",
      "eventName": "演示更新事件",
      "attempt": 3,
      "delivered": false,
      "eventType": "updated",
      "payload": {
        "resourceId": "demo-R02",
        "changes": [
          "state",
          "count"
        ]
      }
    }
  }
]