Private/Get-EntraIDFunctionAppMSIAccessToken.ps1
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function Get-EntraIDFunctionAppMSIAccessToken { [CmdletBinding(DefaultParameterSetName = "default")] Param( [Parameter(Mandatory = $true)] $AccessTokenProfile, [Parameter(Mandatory = $false, ParameterSetName = "v1")] [String] $Resource = $null ) Process { $uri = "$($env:IDENTITY_ENDPOINT)?api-version=2019-08-01" # Add resource $_Resource = [String]::IsNullOrEmpty($Resource) ? $AccessTokenProfile.Resource : $Resource $uri = "{0}&resource={1}" -f $uri, [System.Uri]::EscapeUriString($_Resource) # Add client_id if ($AccessTokenProfile.ClientId) { Write-Verbose "Getting access token for '$($body.resource)' using Function App User Assigned Identity with client_id $($AccessTokenProfile.ClientId)" $uri = "{0}&client_id={1}" -f $uri, $AccessTokenProfile.ClientId } else { Write-Verbose "Getting access token for '$($body.resource)' using Function App System Assigned Identity" } Invoke-RestMethod $uri -Method 'GET' -Headers @{ 'X-IDENTITY-HEADER' = $env:IDENTITY_HEADER } } } |