Powershell 脚本开始无法通过 API 添加新的发布变量“错误：不允许 POST 请求中的空正文”

Question

Powershell script is setting new release variable but it started failing suddenly

$url = "https://vsrm.dev.azure.com/{organization}/{project}/_apis/release/releases/$releaseId?api-version=5.0"

$releaseDefinition = Invoke-RestMethod -Uri $url -Method Get -Headers @{ "Authorization"="Bearer     $authenticationToken" "Content-Type" = "application/json; charset=utf-8" }

$newVariable = New-Object PSObject
$newVariable | Add-Member Noteproperty allowOverride $False 
$newVariable | Add-Member Noteproperty isSecret $secretValue
$newVariable | Add-Member Noteproperty value $variableValue

$serializedVariable = $newVariable | ConvertTo-Json -Depth 3
$deserializedVariable = $serializedVariable | ConvertFrom-Json

** 这是有问题的行。如果我注释掉这一行，则请求不会失败。当我记录releaseDefinition.variables 时，我看到添加了新变量。**

$releaseDefinition.variables | Add-Member -Name $variableName -Value $deserializedVariable -   MemberType NoteProperty -Force

$requestBody = ConvertTo-Json $releaseDefinition -Depth 100

#Error throw here when we add new release variable
$response = Invoke-RestMethod -Uri $url -Method Put -Headers @{ "Authorization"="Bearer     $authenticationToken" "Content-Type" = "application/json; charset=utf-8" } -Body $requestBody

错误信息： "Invoke-RestMethod : {"$id":"1","innerException":null,"message":"VS402865: POST 请求中不允许有空正文。""

Answer 1

针对错误

VS402865: An empty body in the POST request is not allowed.

，建议输出

$requestBody

内容进行检查。

我尝试了你的脚本并修复了一些语法，它对我有用。我使用

system.accesstoken

作为

bearer token

并在 DevOps 版本中添加 powershell 任务：

1. 启用代理工作级别的选项：

2. PowerShell 脚本：

$url = "https://vsrm.dev.azure.com/$(orgname)/$(projectname)/_apis/release/releases/$(Release.ReleaseId)?api-version=5.0"


$secretValue = "false"
$override = "false"
$variableValue = "var3value4"
$variableName = "var3"


$releaseDefinition = Invoke-RestMethod -Uri $url -Method Get -Headers @{"Authorization"="Bearer    $env:SYSTEM_ACCESSTOKEN"; "Content-Type" = "application/json; charset=utf-8" }

$newVariable = New-Object PSObject
$newVariable | Add-Member Noteproperty allowOverride $override 
$newVariable | Add-Member Noteproperty isSecret $secretValue
$newVariable | Add-Member Noteproperty value $variableValue

$serializedVariable = $newVariable | ConvertTo-Json -Depth 3
$deserializedVariable = $serializedVariable | ConvertFrom-Json

$releaseDefinition.variables | Add-Member -Name $variableName -Value $deserializedVariable -MemberType NoteProperty -Force

$requestBody = ConvertTo-Json $releaseDefinition -Depth 100

echo $requestBody

#Error throw here when we add new release variable
$response = Invoke-RestMethod -Uri $url -Method Put -Headers @{"Authorization"="Bearer     $env:SYSTEM_ACCESSTOKEN"; "Content-Type" = "application/json; charset=utf-8" } -Body $requestBody

发布任务成功：

添加变量：