“使用ServiceNow API时缺少必填字段”错误

Question

我正在使用ServiceNow API创建目录请求。

URL：

https://<ServiceNow>/api/sn_sc/servicecatalog/items/6e2cc01d4f51ce08d4fb2b8ca310c7a6/order_now

BODY：

{
    "sysparm_quantity":"1",
    "variables":  {
        "requestor":"6e2cc01d4f51ce08d4fb2b8ca310c7a6",
        "Requested For":"6e2cc01d4f51ce08d4fb2b8ca310c7a6",
        "Group Name":"01304c6ddbef9f0827673672399619c4",
        "Group Domain":"FG",
        "Rationale for Approver Only (this will not be viewed by fulfillment team)":"testing"
    }
}

我收到此错误：

{
    "error": {
        "detail": "",
        "message": "Mandatory Variables are required"
    },
    "status": "failure"
}

我怎么知道什么是必填字段？

Answer 1

我发现此ID将用于获取必需变量。https://<ServiceNow>/api/sn_sc/servicecatalog/items/<Item_ID>/variables

但是，我现在不在官方服务文档中找到它。不知道这是否是API扩展。