在Dataweave中合并JSON负载的问题

Question

我在列表变量中添加了来自foreach组件的以下JSON数组响应：

[{
  "DocumentName": "Test1",
  "renditions": [
    {
      "rendition": "indexData"
    },
    {
      "rendition": "48x48_GIF"
    },
    {
      "rendition": "80x80_JPG"
    },
    {
      "rendition": "100x100_JPG"
    }
  ]
}, {
  "DocumentName": "Test23",
  "renditions": [
    {
      "rendition": "indexData"
    },
    {
      "rendition": "Preview"
    },
    {
      "rendition": "Native File"
    }
  ]
}]

我还有另一个向我发送JSON响应的服务，如下所示：

{
  "results": [
    {
      "ID": "1",
      "ImageID": "2",
      "Name": "Test1",
      "Owner": "sysadmin",
      "Author": "sysadmin",
      "Creator": "sysadmin"
	},
	{
      "ID": "2",
      "ImageID": "23",
      "Name": "Test23",
      "Owner": "sysadmin",
      "Author": "sysadmin",
      "Creator": "sysadmin"
	}
  ]
}

我想要的是在条件的基础上结合上述两个有效负载，并且仅当第二个JSON响应中的Name字段与第一个JSON响应的DocumentName匹配并且需要过滤indexData表示形式时，才映射对象最终答复中的内容，并且最终答复必须如下所示：

{
  "results": [
    {
      "ID": "1",
      "ImageID": "2",
      "Name": "Test1",
      "Owner": "sysadmin",
      "Author": "sysadmin",
      "Creator": "sysadmin"
	  "links": [
                {
                    "rel": "48x48_GIF",
                    "href": "/abc/48x48_GIF"
                },
				{
                    "rel": "80x80_JPG",
                    "href": "/abc/80x80_JPG"
                },
				{
                    "rel": "100x100_GIF",
                    "href": "/abc/100x100_GIF"
                }
            ]
	},
	{
      "ID": "2",
      "ImageID": "23",
      "Name": "Test23",
      "Owner": "sysadmin",
      "Author": "sysadmin",
      "Creator": "sysadmin"
	  "links": [
                {
                    "rel": "Preview",
                    "href": "/abc/Preview"
                },
				{
                    "rel": "Native File",
                    "href": "/abc/Native File"
                }
            ]
	}
  ]
}

必须从最终响应中删除indexData。我尝试通过以下数据编织实现这一目标：

%dw 1.0
%output application/json
---
{
  "results": (payload.searchResults pluck ({
   "ID": $.xAH_StoreItemNumber,
   "ImageID": $.dID,
   "Name": $.dDocName,
   "Owner": $.dDocOwner,
   "Author": $.dDocAuthor,
   "Creator": $.dDocCreator,
   "links": flowVars.setRenditionsResponse.renditions map ((renditions, indexofRenditions) -> {
			"rel": renditions.rendition
		}) ++ 
      [{
         "rel": "retail-item",
         "href": (p('ah.packshots.api.url') ++ $.xAH_StoreItemNumber)
      }]
  }) when (sizeOf payload) >= 1  otherwise [])
}

，但未返回预期输出。有人可以帮我吗？

谢谢！

Answer 1

首先将数组展平，然后将其用作主dataweave中的嵌套映射，就可以使它起作用！