Private/Get-EntraIDAutomationAccountMSIAccessToken.ps1
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function Get-EntraIDAutomationAccountMSIAccessToken { [CmdletBinding(DefaultParameterSetName = "default")] Param( [Parameter(Mandatory = $true)] $AccessTokenProfile, [Parameter(Mandatory = $false, ParameterSetName = "v1")] [String] $Resource = $null ) Process { $body = @{ 'resource' = [String]::IsNullOrEmpty($Resource) ? $AccessTokenProfile.Resource : $Resource } if ($AccessTokenProfile.ClientId) { Write-Verbose "Getting access token for '$($body.resource)' using Automation Account User Assigned Identity with client_id $($AccessTokenProfile.ClientId)" $body['client_id'] = $AccessTokenProfile.ClientId } else { Write-Verbose "Getting access token for '$($body.resource)' using Automation Account System Assigned Identity" } Invoke-RestMethod $env:IDENTITY_ENDPOINT -Method 'POST' -Headers @{ 'Metadata' = 'true' 'X-IDENTITY-HEADER' = $env:IDENTITY_HEADER } -ContentType 'application/x-www-form-urlencoded' -Body $body } } |