[英]Azure Logic app access json property depending on value
我正在尝试从 api 获取评论列表。 这给了我一个带有嵌套属性的 JSON。 我设法从嵌套数组 ["value"]["answers"]["value"] 中获取几乎所有我需要的数据，因为有时数组 ["answers"] 有一个项目（“id”是“货物”、“交付”或“服务”），或其中 2 个或全部 3 个。 所以我不能用索引来得到我想要的。 我需要能够检查“id”并将“值”附加到我的数组中。 有没有办法编写一个检查“id”的表达式，然后在我的数组中写入“值”？
JSON：
...
"surveyData": [
{
"questionRef": "q1",
"type": "CORE_STAR_RATING",
"properties": {
"title": "How do you evaluate ...?"
},
"value": {
"stars": 5,
"notAnswered": false
},
"userDefinedId": "q1"
},
"userDefinedId": "q2-good"
},
{
"questionRef": "q3",
"type": "DIMENSIONS",
"properties": {
"title": "How do you evaluate on those criterias ?"
},
**"value": {
"answers": [
{
"id": "delivery",
"value": 4,
"userDefinedId": "delivery",
"name": "Delivery",
"firstLabel": "Nul",
"lastLabel": "Good"
},
{
"id": "goods",
"value": 5,
"userDefinedId": "goods",
"name": "Goods",
"firstLabel": "Nul",
"lastLabel": "Good"
},
{
"id": "service",
"value": 5,
"userDefinedId": "service",
"name": "Service",
"firstLabel": "Nul",
"lastLabel": "Good"
}
]**
},
"userDefinedId": "q3-group"
}
]
...
到目前为止我的数组：
"value": {
"Event": "@items('For_each-Service')?['event']?['type']",
"Delivery": "", <= ??
"Goods": "", <= ??
"Service": "@items('For_each-Service')?['surveyData'][2]?['value']?['answers'][2]?['value']", <= doesn't work
"comment": "@items('For_each-Service')?['reply']?['comment']",
"order date": "@items('For_each-Service')?['transaction']?['date']",
"date": "@items('For_each-Service')?['reply']?['createdAt']",
"email": "@items('For_each-Service')?['customer']?['email']",
"id review": "@items('For_each-Service')?['event']?['id']",
"name client": "@items('For_each-Service')?['customer']?['fullName']",
"status": "@items('For_each-Service')?['state']",
"title": "@items('For_each-Service')?['title']"
}
谢谢
有几种方法可以给这只猫剥皮，有些方法比其他方法更有效。
就个人而言，我会采取以下方法。
我创建了一个流程，基本上，它所做的第一件事就是初始化一个变量，该变量包含您的Answers数组作为数据......
下一步是初始化另一个将该数组存储为 XML 的变量...
这是包含在...中的表达式
xml(json(concat('{ "root": { "answer": ', variables('Answers Array'), '}}')))
在下一步中，我基本上是通过构造一个对象来做你正在做的事情，只是这一次，值的选择有点复杂，这是 body 的定义......
{
"Delivery": @{first(xpath(xml(variables('XML')), '//id[contains(text(), "delivery")]/parent::answer/value/text()'))},
"Goods": @{first(xpath(xml(variables('XML')), '//id[contains(text(), "goods")]/parent::answer/value/text()'))},
"Service": @{first(xpath(xml(variables('XML')), '//id[contains(text(), "service")]/parent::answer/value/text()'))}
}
使用xpath方法查询数据集可以减少获得所需结果所需的步骤。
如果缺少一个元素，它将简单地返回为 null ...
以下是实现您的要求的解决方法之一。 首先，我初始化了 Delivery、Goods 和 Service Counts 的 3 个变量。
然后使用Parse_JSON提取提供的 JSON 的内部值。
在下一步中，我将尝试使用带有body('Parse_JSON')?['value']?['answers']?[iterationIndexes('Until')]?['id']表达式的Switch操作来遍历 Id并在 until 循环中使用以下表达式设置变量。
body('Parse_JSON')?['value']?['answers']?[iterationIndexes('Until')]?['value']
最后你可以像下面一样添加到你的数组中
结果：
您可以使用下面的代码视图在您的逻辑应用程序中重现
{
"definition": {
"$schema": "https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#",
"actions": {
"Compose": {
"inputs": {
"value": {
"answers": [
{
"firstLabel": "Nul",
"id": "goods",
"lastLabel": "Good",
"name": "Goods",
"userDefinedId": "goods",
"value": 4
},
{
"firstLabel": "Nul",
"id": "service",
"lastLabel": "Good",
"name": "Service",
"userDefinedId": "service",
"value": 5
}
]
}
},
"runAfter": {
"Initialize_variable_Service_Count": [
"Succeeded"
]
},
"type": "Compose"
},
"Compose_2": {
"inputs": " \"value\": {\n \"Event\": \"@items('For_each-Service')?['event']?['type']\",\n \"Delivery\": \"@{variables('Delivery Count')}\", \n \"Goods\": \"@{variables('Goods Count')}\", \n \"Service\": \"@{variables('Service Count')}\"\n }",
"runAfter": {
"Until": [
"Succeeded"
]
},
"type": "Compose"
},
"Initialize_variable": {
"inputs": {
"variables": [
{
"name": "i",
"type": "integer",
"value": 0
}
]
},
"runAfter": {},
"type": "InitializeVariable"
},
"Initialize_variable_Delivery_count": {
"inputs": {
"variables": [
{
"name": "Delivery Count",
"type": "integer"
}
]
},
"runAfter": {
"Initialize_variable": [
"Succeeded"
]
},
"type": "InitializeVariable"
},
"Initialize_variable_Goods_Count": {
"inputs": {
"variables": [
{
"name": "Goods Count",
"type": "integer"
}
]
},
"runAfter": {
"Initialize_variable_Delivery_count": [
"Succeeded"
]
},
"type": "InitializeVariable"
},
"Initialize_variable_Service_Count": {
"inputs": {
"variables": [
{
"name": "Service Count",
"type": "integer"
}
]
},
"runAfter": {
"Initialize_variable_Goods_Count": [
"Succeeded"
]
},
"type": "InitializeVariable"
},
"Parse_JSON": {
"inputs": {
"content": "@outputs('Compose')",
"schema": {
"properties": {
"value": {
"properties": {
"answers": {
"items": {
"properties": {
"firstLabel": {
"type": "string"
},
"id": {
"type": "string"
},
"lastLabel": {
"type": "string"
},
"name": {
"type": "string"
},
"userDefinedId": {
"type": "string"
},
"value": {
"type": "integer"
}
},
"required": [],
"type": "object"
},
"type": "array"
}
},
"type": "object"
}
},
"type": "object"
}
},
"runAfter": {
"Compose": [
"Succeeded"
]
},
"type": "ParseJson"
},
"Until": {
"actions": {
"Increment_variable": {
"inputs": {
"name": "i",
"value": 1
},
"runAfter": {
"Switch": [
"Succeeded"
]
},
"type": "IncrementVariable"
},
"Switch": {
"cases": {
"Case_Delivery": {
"actions": {
"Set_variable_Delivery_Count": {
"inputs": {
"name": "Delivery Count",
"value": "@body('Parse_JSON')?['value']?['answers']?[iterationIndexes('Until')]?['value']"
},
"runAfter": {},
"type": "SetVariable"
}
},
"case": "delivery"
},
"Case_Goods": {
"actions": {
"Set_variable_Goods_Count": {
"inputs": {
"name": "Goods Count",
"value": "@body('Parse_JSON')?['value']?['answers']?[iterationIndexes('Until')]?['value']"
},
"runAfter": {},
"type": "SetVariable"
}
},
"case": "goods"
},
"Case_Service": {
"actions": {
"Set_variable_Service_Count": {
"inputs": {
"name": "Service Count",
"value": "@body('Parse_JSON')?['value']?['answers']?[iterationIndexes('Until')]?['value']"
},
"runAfter": {},
"type": "SetVariable"
}
},
"case": "service"
}
},
"default": {
"actions": {}
},
"expression": "@body('Parse_JSON')?['value']?['answers']?[iterationIndexes('Until')]?['id']",
"runAfter": {},
"type": "Switch"
}
},
"expression": "@equals(variables('i'), length(body('Parse_JSON')?['value']?['answers']))",
"limit": {
"count": 10,
"timeout": "PT1H"
},
"runAfter": {
"Parse_JSON": [
"Succeeded"
]
},
"type": "Until"
}
},
"contentVersion": "1.0.0.0",
"outputs": {},
"parameters": {},
"triggers": {
"manual": {
"inputs": {
"schema": {}
},
"kind": "Http",
"type": "Request"
}
}
},
"parameters": {}
}
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