我正在嘗試使用 Jolt 轉換來轉換 JSON，在此處尋找一些輸入。我正在嘗試按屬性的內部值進行過濾。
我的目標是獲得一個僅包含 typeName 為“xx”的專案的陣列。
這是我的輸入和預期輸出：
輸入：
{
"id": 11,
"item": [
{
"id": "11_1",
"action": "add",
"type": {
"id": "11_1_xx",
"typeName": "xx"
},
"item": [
{
"id": "11_1_1",
"action": "add",
"type": {
"id": "11_1_1_zz",
"typeName": "zz"
},
"item": [
{
"id": "11_1_1_1",
"action": "add",
"type": {
"id": "11_1_1_1_xx",
"typeName": "xx"
}
}
]
},
{
"id": "11_1_2",
"action": "add",
"type": {
"id": "11_1_2_xx",
"typeName": "xx"
},
"item": [
{
"id": "11_1_2_1",
"action": "add",
"type": {
"id": "11_1_2_1_zz",
"typeName": "zz"
}
}
]
}
]
}
]
}
預期輸出：
[
{
"id": "11_1",
"action": "add",
"type": {
"id": "11_1_xx",
"typeName": "xx"
}
},
{
"id": "11_1_1_1",
"action": "add",
"type": {
"id": "11_1_1_1_xx",
"typeName": "xx"
}
}, {
"id": "11_1_2",
"action": "add",
"type": {
"id": "11_1_2_xx",
"typeName": "xx"
}
}
]
你能幫我寫一個簡單的規范來做到這一點嗎？
uj5u.com熱心網友回復：
id需要通過第一個轉換規范中的和值來分隔物件type.typeName，以便通過type.typeName=xx在右側使用葉元素id的識別符號（例如@(1,id).@(1,typeName)
[
{
"operation": "shift",
"spec": {
"item": {
"*": {
"item": {
"*": {
"item": {
"*": {
"type": {
"@(1,id)": "@(1,id).@(1,typeName).id",
"@(1,action)": "@(1,id).@(1,typeName).action",
"*": "@(1,id).@(1,typeName).&1.&" // &1 replicates key name "type"
}
}
},
"type": {
"@(1,id)": "@(1,id).@(1,typeName).id",
"@(1,action)": "@(1,id).@(1,typeName).action",
"*": "@(1,id).@(1,typeName).&1.&" // & replicates the values of the elements nested within the "type" object
}
}
},
"type": {
"@(1,id)": "@(1,id).@(1,typeName).id",
"@(1,action)": "@(1,id).@(1,typeName).action",
"*": "@(1,id).@(1,typeName).&1.&"
}
}
}
}
},
{
"operation": "shift",
"spec": {
"*": {
"xx": ""
}
}
}
]
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