Private/Invoke-RestMethodWrapper.ps1
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Function Invoke-RestMethodWrapper { <# .SYNOPSIS Validate and return content from Invoke-RestMethod for reading update APIs (typically JSON) Enables normalisation for all public functions and across PowerShell/Windows PowerShell Some validation of $Uri is expected before passing to this function Does not support redirection, as this should be handled before sending to this function TODO: Add proxy support #> [OutputType([Microsoft.PowerShell.Commands.WebResponseObject])] [CmdletBinding(SupportsShouldProcess = $False)] param ( [Parameter(Mandatory = $True, Position = 0)] [ValidateNotNullOrEmpty()] [System.String] $Uri, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $ContentType = "application/json; charset=utf-8", [Parameter()] [ValidateNotNullOrEmpty()] [System.Collections.Hashtable] $Headers, [Parameter()] [ValidateSet("Default", "Get", "Head", "Post")] [System.String] $Method = "Default", [Parameter()] [ValidateSet("Default", "Tls", "Tls11", "Tls12", "Tls13")] [System.String] $SslProtocol = "Tls12", [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $UserAgent = [Microsoft.PowerShell.Commands.PSUserAgent]::Chrome, [Parameter()] [System.Management.Automation.SwitchParameter] $SkipCertificateCheck ) # PowerShell 5.1: Trust certificate used by the remote server (typically self-sign certs) # PowerShell Core will use -SkipCertificateCheck If (($SkipCertificateCheck.IsPresent) -and -not(Test-PSCore)) { Add-Type @" using System.Net; using System.Security.Cryptography.X509Certificates; public class TrustAllCertsPolicy : ICertificatePolicy { public bool CheckValidationResult( ServicePoint srvPoint, X509Certificate certificate, WebRequest request, int certificateProblem) { return true; } } "@ [System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy } # Use TLS for connections If (($SslProtocol.IsPresent) -and -not(Test-PSCore)) { If ($SslProtocol -eq "Tls13") { $SslProtocol = "Tls12" Write-Warning -Message "$($MyInvocation.MyCommand): Defaulting back to TLS1.2." } [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::$SslProtocol } # Call Invoke-RestMethod try { $irmParams = @{ ContentType = $ContentType DisableKeepAlive = $true ErrorAction = "Continue" MaximumRedirection = 0 Uri = $Uri UseBasicParsing = $true UserAgent = $UserAgent } If ($Headers.IsPresent) { $irmParams.Headers = $Headers } If ($Method.IsPresent) { $irmParams.Method = $Method } If (($SkipCertificateCheck.IsPresent) -and (Test-PSCore)) { $irmParams.SkipCertificateCheck = $True } If (($SslProtocol.IsPresent) -and (Test-PSCore)) { $irmParams.SslProtocol = $SslProtocol } ForEach ($item in $irmParams.GetEnumerator()) { Write-Verbose -Message "$($MyInvocation.MyCommand): Invoke-RestMethod parameter: [$($item.name): $($item.value)]." } $Response = Invoke-RestMethod @irmParams } catch { Write-Warning -Message "$($MyInvocation.MyCommand): Error at URI: $Uri." Write-Warning -Message "$($MyInvocation.MyCommand): Error encountered: $($_.Exception.Message)." Write-Warning -Message "$($MyInvocation.MyCommand): For troubleshooting steps see: $($script:resourceStrings.Uri.Info)." #Throw "$($MyInvocation.MyCommand): $($_.Exception.Message)." } finally { Write-Output -InputObject $Response } } |