带有 PowerShell、存储队列触发器和 OneDrive for Business 的 Azure Function

Azure Function with PowerShell, Storage Queue trigger, and OneDrive for Business

我正在尝试创建一个使用存储队列触发器执行 PowerShell 的 Azure 函数。出于测试目的,我希望此函数能够操作我的 OneDrive for Business 帐户中的文件。将位于 aapdftoimage/ThreePages.pdf 的文件复制到 aapdftoimage/output_ThreePages.pdf.

当 OneDrive for Business 作为输入集成时,每当队列中的新消息触发函数时,我都会收到错误消息。如果我断开 OneDrive 作为输入,我不会收到任何错误并且 $triggerInput 包含消息。

错误是:

2017-05-25T22:24:38.484 Function started (Id=a0c37fdf-ed3c-473c-9c79-236d63531e7e)
2017-05-25T22:24:38.499 Function completed (Failure, Id=a0c37fdf-ed3c-473c-9c79-236d63531e7e, Duration=1ms)
2017-05-25T22:24:38.562 Exception while executing function: Functions.QueueTriggerPowerShell1. Microsoft.Azure.WebJobs.Host: No value for named parameter 'file'.

这是我的 PowerShell:

$inData = Get-Content $triggerInput
$inFile = Get-Content $inputFile

Write-Output "PowerShell script processed queue message '$inData'"
Write-Output "inFile: $inFile"

这是function.json:

{
  "bindings": [
    {
      "name": "triggerInput",
      "type": "queueTrigger",
      "direction": "in",
      "queueName": "samples-powershell-pdftoimage",
      "connection": "<storageaccount>_STORAGE"
    },
    {
      "type": "apiHubFile",
      "name": "inputFile",
      "path": "aapdftoimage/{file}",
      "connection": "onedriveforbusiness1_ONEDRIVEFORBUSINESS",
      "direction": "in"
    }
  ],
  "disabled": false
}

在撰写本文时,我认为我的部分困惑在于 OneDrive for Business 的输入和输出(在我的测试中未连接)集成。

我知道$triggerInput是什么。这是消息的内容。但是 $inputFile 是什么? {file} 从何而来?

我想也许我会做以下事情,但它也不起作用(同样的错误):

$file = Get-Content $triggerInput

我认为这可能会将 $inputFile 定义为 "aapdftoimage/$file",但它没有任何作用。

不用说,我处于停滞状态。任何人都可以给我一些指导并理顺我吗?

工作示例

Function.json:

{
  "bindings": [
    {
      "name": "triggerInput",
      "type": "queueTrigger",
      "direction": "in",
      "queueName": "test",
      "connection": "AzureWebJobsDashboard"
    },
    {
      "type": "apiHubFile",
      "name": "inputFile",
      "path": "aapdftoimage/ThreePages.pdf",
      "connection": "onedrive_ONEDRIVE",
      "direction": "in"
    },
    {
      "type": "apiHubFile",
      "name": "outputFile",
      "path": "aapdftoimage/output_ThreePages.pdf",
      "connection": "onedrive_ONEDRIVE",
      "direction": "out"
    }
  ],
  "disabled": false
}

运行.ps1:

$in = Get-Content $triggerInput
Write-Output "PowerShell script processed queue message '$in'"

Copy-Item $inputFile $outputFile

@Henry Hamid Safi 是正确的。使用 C#,您可以利用 Binder 对象动态命名文件。

在您的用例中,动态提供文件名的唯一方法是将其作为触发器负载中的 JSON 对象传递。这是对我有用的示例设置。

function.json:

{
  "bindings": [
    {
      "name": "triggerInput",
      "type": "queueTrigger",
      "direction": "in",
      "queueName": "samples-powershell",
      "connection": "AzureWebJobsStorage"
    },
    {
      "type": "apiHubFile",
      "name": "inputFile",
      "path": "aapdftoimage/{file}",
      "connection": "onedriveforbusiness_ONEDRIVEFORBUSINESS",
      "direction": "in"
    },
    {
      "type": "apiHubFile",
      "name": "outputFile",
      "path": "aapdftoimage/output_{file}",
      "connection": "onedriveforbusiness_ONEDRIVEFORBUSINESS",
      "direction": "out"
    }
  ],
  "disabled": false
}

运行.ps1:

$in = Get-Content $triggerInput
Write-Output "PowerShell script processed queue message '$in'"
Copy-Item $inputFile $outputFile

请求正文(如果在门户中使用测试窗格)或队列触发器负载:

{
  "file":"ThreePages.pdf"
}

日志条目:

2017-05-26T22:27:53.984 Function started (Id=032c4469-8378-44ce-af9e-5a941afb0d82)
2017-05-26T22:27:54.875 PowerShell script processed queue message '{   "file":"ThreePages.pdf" }'
2017-05-26T22:27:54.891 Function completed (Success, Id=032c4469-8378-44ce-af9e-5a941afb0d82, Duration=899ms)

OneDrive 文件夹屏幕截图: