如何修复jq展平JSON数组的重复输出

时间:2019-06-25 23:19:51

标签: json jq

我正在尝试使用jq命令展平JSON文件。但是输出重复了。

请在此处查看我的jqplay:https://jqplay.org/s/gwvMIH_fed

我的输入JSON:

{
  "cost": 0.0,
  "interval": "0:01:00",
  "namespace": "Microsoft.ApiManagement/service",
  "resourceregion": "australiaeast",
  "timespan": "2019-05-22T00:00:00Z/2019-05-22T00:02:00Z",
  "value": [
    {
      "id": "/my-api/providers/Microsoft.Insights/metrics/Capacity",
      "name": {
        "localizedValue": "Capacity",
        "value": "Capacity"
      },
      "resourceGroup": "my-group",
      "timeseries": [
        {
          "data": [
            {
              "average": 15,
              "count": null,
              "maximum": null,
              "minimum": null,
              "timeStamp": "2019-05-22T00:00:00+00:00",
              "total": null
            },
            {
              "average": 16,
              "count": null,
              "maximum": null,
              "minimum": null,
              "timeStamp": "2019-05-22T00:01:00+00:00",
              "total": null
            }
          ],
          "metadatavalues": []
        }
      ],
      "type": "Microsoft.Insights/metrics",
      "unit": "Percent"
    }
  ]
}

我的预期输出:

{
  "apiId": "/my-api/providers/Microsoft.Insights/metrics/Capacity",
  "metrics": "Capacity",
  "timestamp": "2019-05-22T00:00:00+00:00",
  "value": 15
}
{
  "apiId": "/my-api/providers/Microsoft.Insights/metrics/Capacity",
  "metrics": "Capacity",
  "timestamp": "2019-05-22T00:01:00+00:00",
  "value": 16
}

任何人都可以看看提供的jqplay URL并提出建议。

2 个答案:

答案 0 :(得分:1)

每个。[]就像一个“ for”循环,因此您观察到的乘法行为本质上是嵌套for循环的结果。似乎您想要的东西更接近:

.value[] as $v
| $v.timeseries[].data[] as $d
| {"apiId": $v.id,
  "metrics": $v.name.value,
  "timestamp": $d.timeStamp,
  "value": $d.average }

使用JSON作为输入,这会生成两个JSON对象,尽管其中的第二个与您期望的输出结果稍有不同。

答案 1 :(得分:0)

使用基于步行路径的Unix实用程序 jtc

bash $ <input.json jtc -w'<id>l<A>v[-1][name][value]<M>v[-2]<average>l:<V>v[-1][timeStamp]' -T'{"apiId":{{A}},"metrics":{{M}},"value":{{V}},"timestamps":{{}}}'
{
   "apiId": "/my-api/providers/Microsoft.Insights/metrics/Capacity",
   "metrics": "Capacity",
   "timestamps": "2019-05-22T00:00:00+00:00",
   "value": 15
}
{
   "apiId": "/my-api/providers/Microsoft.Insights/metrics/Capacity",
   "metrics": "Capacity",
   "timestamps": "2019-05-22T00:01:00+00:00",
   "value": 16
}
bash $ 

walk-path there(-w)仅将所有必需的JSON值收集到各自的命名空间(AMV)中,以进行后续模板插值(注意最后一个步行元素不需要存储在名称空间中,因为可以使用{{}}表示法对它进行插值)

PS>披露:我是jtc-用于JSON操作的shell cli工具的创建者