从PowerShell脚本调用REST API

Question

如何从PowerShell脚本调用基于rest的API并处理Json答案？

Answer 1

你想要的是PowerShell的3和Invoke-RestMethod,ConvertTo-Json和ConvertFrom-Json的cmdlet.您的代码最终将如下所示:

 $stuff = Invoke-RestMethod -Uri $url -Method Get;

甚至不需要调用ConvertFrom-Json结果$stuff=>它已经是一个可用的非字符串格式.

有关详细信息,请参阅http://technet.microsoft.com/en-us/Library/hh849971.aspx.

Answer 2

我创建了这个Get-Http函数来发出HTTP请求

param([string]$url)

$req = [System.Net.WebRequest]::Create($url)
$req.Method ="GET"
$req.ContentLength = 0

$resp = $req.GetResponse()
$reader = new-object System.IO.StreamReader($resp.GetResponseStream())
$reader.ReadToEnd()

因为xml很容易处理最终结果,但是,如果你想处理JSON,你可能需要一些像JSON.Net这样的.Net库.

Answer 3

我们使用Powershell查询仅处理Json样式数据的REST API.起初很尴尬,但下面的代码是我们执行大多数操作所需的全部内容:

# Authentication
$webclient = New-Object System.Net.WebClient
$creds = New-Object System.Net.NetworkCredential("MyUsername","MyPassword");
$webclient.Credentials = $creds

# Data prep
$data = @{Name='Test';} | ConvertTo-Json

# GET
$webClient.DownloadString($url) | ConvertFrom-Json

# POST
$webClient.UploadString($url,'POST',$data)

# PUT
$webClient.UploadString($url,'PUT',$data)