作为 System.Object[] 发送的 PowerShell V5 Invoke-RestMethod 数组

Question

我正在使用 Layer2 Cloud Connector 作为数据集成服务。该软件有一个基于本地的 REST API，可由 PowerShell 脚本调用。我正在尝试创建一个脚本，该脚本将使用 Invoke-RestMethod 发布与服务的新连接，如documentation 所示。我的 POST 调用成功，但我的帖子中的数组作为 System.Object[] 发送。

有人可以帮我理解为什么会这样吗？

当我运行下面的代码时，调用成功地创建了连接，但是作为数组传递的任何内容都显示为 System.Object[]。

$body = @{
    name        = "Sites Test"
    consecutiveErrors     = 0
    initialOverwrite      = $True
    direction             = "LeftToRight"
    schedule              = @{
        enabled  = $False
        interval = 10
        start    = "2019-02-14T06:19:45.3892419-07:00"
    }
    leftEntity  = @{
        name                  = "left"
        providerInvariantName = "Layer2.LaCuaba.JSON"
        connectionString      = "Uri=https://example.url;"
        selectStatement       = "SELECT * from JSONData"
        primaryKey            = "code"
        encryptions           = @()
        deletionProtectionThreshhold = 30
    }
    rightEntity = @{
        name                  = "right"
        providerInvariantName = "Layer2.SharePoint.Provider"
        connectionString      = "Url=https://example.url;"
        selectStatement       = "SELECT * from JSONData"
        primaryKey            = ""
        operation             = @(
            "Read",
            "Delete",
            "Insert",
            "Update"
        )
        encryptions           = ((
            "ConnectionString"
        ) -join ",")
        deletionProtectionThreshhold = 30
    }
    mapping = @{
        auto                  = $False
        entries               = @(
            @{
                left = "code"
                right = "Title"
            },
            @{
                left = "description"
                right = "Description"
            },
            @{
                left = "alternateId"
                right = "RandomNumber"
            }
        )
    }
    conflictResolution = @{
        name = "FailAndAbort"
        entity = ""
    }
}
$jsonBody = $body | ConvertTo-Json
Invoke-RestMethod -Uri "http://localhost:[port]/v1/connections" -Method Post -Body $jsonBody -ContentType "application/json"

根据我读过的所有其他 Invoke-RestMethod 问题，'-ContentType "application/json"' 应该可以解决我遇到的问题，但输出仍然显示 System.Object[]。以下是输出示例：

name               : Sites Test
consecutiveErrors  : 0
initialOverwrite   : True
direction          : LeftToRight
schedule           : @{enabled=False; interval=10; start=2019-02-14T06:19:45.3892419-07:00}
leftEntity         : @{name=left; providerInvariantName=Layer2.LaCuaba.JSON; connectionString=Uri=https://example.url;; 
                     selectStatement=SELECT * from JSONData; primaryKey=code; replicationKey=; generateId=False; operations=System.Object[]; 
                     encryptions=System.Object[]; dynamicColumns=System.Object[]; deletionProtectionThreshold=0}
rightEntity        : @{name=right; providerInvariantName=Layer2.SharePoint.Provider; 
                     connectionString=Url=https://example.url; 
                     selectStatement=SELECT * from JSONData; primaryKey=; replicationKey=; generateId=False; operations=System.Object[]; encryptions=System.Object[]; 
                     dynamicColumns=System.Object[]; deletionProtectionThreshold=0}
mapping            : @{auto=False; entries=System.Object[]}
conflictResolution : @{name=FailAndAbort; entity=}
error              :

任何帮助将不胜感激！

Answer 1

我怀疑这是 JSON 转换深度的问题。我认为ConvertTo-Json 的-Depth 参数默认为微不足道的2，所以尝试使用足够高的数字（10？），我认为可以做到。

---

原来这是输出在屏幕上格式化的一种情况。例如，将结果分配给$result 之类的变量，然后查看$result.mapping.entries 应该表明实际值确实存在。