如何使用jolt解析array of array

Question

我想用 jolt 来解析 json。但是我无法成功获得第一级的年龄值。有人可以帮助我吗？输入json是这样的：

{
  "name": "abc",
  "age": "20",
  "Photos": [
    {
      "a": "AAA.jpg",
      "b": "BBB.jpg",
      "XXX123": [
        {
          "v1": "AAA.jpg",
          "v2": "BBB.jpg"
        }
      ]
    }
  ]
}

我的规格：

[
  {
    "operation": "shift",
    "spec": {
      "Photos": {
        "*": {
          "XXX123": {
            "*": {
              //"*": "&2.[&1].&",
              "@(2,a)": "&2.[&1].a",
              "@(2,b)": "&2.[&1].b",
              "@(3,age)": "&3.[&1].age"
            }
          }
        }
      }
    }
  }
]

我想要的输出：

{
  "XXX123" : [ {
    "a" : "AAA.jpg",
    "b" : "BBB.jpg",
    "age" : "20"
  } ]
}

Answer 1

规格

[
  {
    "operation": "shift",
    "spec": {
      "Photos": {
        "*": {
          "XXX123": {
            "*": {
              //"*": "&2.[&1].&",
              "@(2,a)": "&2.[&1].a",
              "@(2,b)": "&2.[&1].b",
              "@(4,age)": "&2.[&1].age"
            }
          }
        }
      }
    }
  }
]

你很接近。

"@(3,age)": "&3.[&1].age" 
needed
"@(4,age)": "&2.[&1].age"

From where that line was you needed to go up the tree 5 levels.
Counting from Zero

0 -> "*" 
1 -> "XXX123"
2 -> "*"
3 -> "Photos"
4 -> your top level input
then lookup "age" in the top level map

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