如何只更新正文请求中的一个字段？

Question

我正在尝试使用提供更新发布管道的描述 Rest API documentation。

我应该如何发送 'Put' 请求以更新字段？

我试过用sniffer手动修改捕获请求，看来我的代码完全一样。

$theBody = ConvertTo-Json @{description='Added a description'}


$instance = "tfs:8080"
$collection = "Collection"
$project = "myProject"
$releaseID = 1234
$apiVersion = "?api-version=4.1-preview.6"
$URI =  "http://"+$instance+"/"+$collection+"/"+$project+"/_apis/release/releases/"+$releaseID+$apiVersion


$res= Invoke-RestMethod -Method Put  -Uri $URI  -UseDefaultCredentials -Body $theBody  -ContentType 'application/json'
write-output $res

我收到一条错误消息：

the Id of the Release does not match the Id of the original release resource. Make sure that you are trying to update the correct resource

Answer 1

最好的方法是使用相同的 URL 但使用 Get 方法（并且没有正文）获得版本：

$release = Invoke-RestMethod -Method Get-Uri $URI -UseDefaultCredentials -ContentType 'application/json'

然后修改描述：

$release.description = "Added a description"

将版本转换为 JSON:

$theBody = $release | ConvertTo-Json -Depth 10

并执行 Put:

$res = Invoke-RestMethod -Method Put -Uri $URI -UseDefaultCredentials -Body $theBody  -ContentType 'application/json'