JMESPath - 连接嵌套数组中的项目

我有一个 JSON

{
"key": "processId-29231",
"fields": {
    "attachment": [
        {
            "id": "79572",
            "filename": "File1.png"
        },
        {
            "id": "74620",
            "filename": "File2.docx"
        },
        {
            "id": "79072",
            "filename": "File3.xlsx"
        }
    ]
  }
}

我需要将其重组为这个

{
"processId": "processId-29231",
"attachments": [

               "https://example.com/files/79572/File1.png",
               "https://example.com/files/79572/File2.docx",
               "https://example.com/files/79572/File1.xlsx",
                ]
    }

我可以使用特定的数组索引来完成这项工作

{processID:key,attachments:join('',['https://example.com/files/',fields.attachment[1].id,'/',fields.attachment[1].filename])}

产生这个结果

{
 "processID": "processId-29231",
 "attachments": "https://example.com/files/74620/File2.docx"
}

我在没有数组索引的情况下尝试了两种方法

this

 {processID:key,attachments:join('',['https://example.com/',fields.attachment[].id,'/',fields.attachment[].filename])}

and this

{processID:key,attachments:join('', ['https://example.com/',fields.attachment[*].id,'/',fields.attachment[*].filename])}

但这没有帮助。

关于如何解决这个问题有什么建议吗？

您需要将该函数应用于数组的每个元素并通过以下方式访问当前节点@

{processID:key,attachments: fields.attachment[].join('',['https://example.com/files/', @.id, '/', @.filename])}

http://jmespath.org/specation.html#functions http://jmespath.org/specification.html#functions