很抱歉，这个问题很长，但是我想包含所有JSON以获得最佳帮助。
我们在流程中从HTTP Get请求解析JSON时出错。
这是我们在“解析JSON”步骤中使用的架构：
{
"type": "object",
"properties": {
"d": {
"type": "object",
"properties": {
"results": {
"type": "array",
"items": {
"type": "object",
"properties": {
"__metadata": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"uri": {
"type": "string"
},
"type": {
"type": "string"
}
}
},
"Alerts": {
"type": "object",
"properties": {
"__deferred": {
"type": "object",
"properties": {
"uri": {
"type": "string"
}
}
}
}
},
"Groups": {
"type": "object",
"properties": {
"__deferred": {
"type": "object",
"properties": {
"uri": {
"type": "string"
}
}
}
}
},
"Id": {
"type": "integer"
},
"IsHiddenInUI": {
"type": "boolean"
},
"LoginName": {
"type": "string"
},
"Title": {
"type": "string"
},
"PrincipalType": {
"type": "integer"
},
"Email": {
"type": "string"
},
"IsEmailAuthenticationGuestUser": {
"type": "boolean"
},
"IsShareByEmailGuestUser": {
"type": "boolean"
},
"IsSiteAdmin": {
"type": "boolean"
},
"UserId": {
"type": "object",
"properties": {
"__metadata": {
"type": "object",
"properties": {
"type": {
"type": "string"
}
}
},
"NameId": {
"type": "string"
},
"NameIdIssuer": {
"type": "string"
}
}
}
},
"required": [
"__metadata",
"Alerts",
"Groups",
"Id",
"IsHiddenInUI",
"LoginName",
"Title",
"PrincipalType",
"Email",
"IsEmailAuthenticationGuestUser",
"IsShareByEmailGuestUser",
"IsSiteAdmin",
"UserId"
]
}
}
}
}
}
}
我们仅对要用于发送批准的电子邮件属性感兴趣...
以下是解析JSON步骤失败的输入结果：
{
"d": {
"results": [
{
"__metadata": {
"id": "https://*********.sharepoint.com/_api/Web/GetUserById(1691)",
"uri": "https://*********.sharepoint.com/_api/Web/GetUserById(1691)",
"type": "SP.User"
},
"Alerts": {
"__deferred": {
"uri": "https://*********.sharepoint.com/_api/Web/GetUserById(1691)/Alerts"
}
},
"Groups": {
"__deferred": {
"uri": "https://*********.sharepoint.com/_api/Web/GetUserById(1691)/Groups"
}
},
"Id": 1691,
"IsHiddenInUI": false,
"LoginName": "i:0#.f|membership|Surnamei@Company.org.uk",
"Title": "Firstname Surname",
"PrincipalType": 1,
"Email": "Surnamef@Company.org.uk",
"Expiration": "",
"IsEmailAuthenticationGuestUser": false,
"IsShareByEmailGuestUser": false,
"IsSiteAdmin": false,
"UserId": {
"__metadata": {
"type": "SP.UserIdInfo"
},
"NameId": "10033fff9fe67a30",
"NameIdIssuer": "urn:federation:microsoftonline"
},
"UserPrincipalName": "Surnamef@Company.org.uk"
},
}
]
}
这是解析JSON的运行结果中失败的架构：
{
"type": "object",
"properties": {
"d": {
"type": "object",
"properties": {
"results": {
"type": "array",
"items": {
"type": "object",
"properties": {
"__metadata": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"uri": {
"type": "string"
},
"type": {
"type": "string"
}
}
},
"Alerts": {
"type": "object",
"properties": {
"__deferred": {
"type": "object",
"properties": {
"uri": {
"type": "string"
}
}
}
}
},
"Groups": {
"type": "object",
"properties": {
"__deferred": {
"type": "object",
"properties": {
"uri": {
"type": "string"
}
}
}
}
},
"Id": {
"type": "integer"
},
"IsHiddenInUI": {
"type": "boolean"
},
"LoginName": {
"type": "string"
},
"Title": {
"type": "string"
},
"PrincipalType": {
"type": "integer"
},
"Email": {
"type": "string"
},
"IsEmailAuthenticationGuestUser": {
"type": "boolean"
},
"IsShareByEmailGuestUser": {
"type": "boolean"
},
"IsSiteAdmin": {
"type": "boolean"
},
"UserId": {
"type": "object",
"properties": {
"__metadata": {
"type": "object",
"properties": {
"type": {
"type": "string"
}
}
},
"NameId": {
"type": "string"
},
"NameIdIssuer": {
"type": "string"
}
}
}
},
"required": [
"__metadata",
"Alerts",
"Groups",
"Id",
"IsHiddenInUI",
"LoginName",
"Title",
"PrincipalType",
"Email",
"IsEmailAuthenticationGuestUser",
"IsShareByEmailGuestUser",
"IsSiteAdmin",
"UserId"
]
}
}
}
}
}
}
这是运行历史记录中步骤中的错误：
[
{
"message": "Invalid type. Expected Object but got Null.",
"lineNumber": 0,
"linePosition": 0,
"path": "d.results[3].UserId",
"schemaId": "#/properties/d/properties/results/items/properties/UserId",
"errorType": "type",
"childErrors": []
}
]
那么我该如何更改架构以成功检索电子邮件
答案 0 :(得分：0)
此问题是由于 UserId 在从HTTP Get接收的数据的多个元素中为空，而在JSON模式中设置为必需导致的。
最初，我们通过在HTTP Get中使用以下代码解决了该问题：
_api/web/sitegroups/getbyname('Legal Owners')/users?$filter=UserId+ne+null
然后我们在Power Platform Community上得到了更好，更优雅的解决方案：
在应用于每个步骤中的使用：
body('Send_an_HTTP_request_to_SharePoint')?['d']?['results']
和循环内使用：
item()?['Email']