Get-GraphAccessToken.ps1
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.AUTHOR Nik Chikersal .SYNOPSIS This function is used to retrieve an access token (bearer) from Microsoft Graph .EXAMPLE Get-GraphAccessToken -UseMSI This example shows how to retrieve an access token using MSI Get-GraphAccessToken This example shows how to retrieve an access token without using MSI .NOTES #> function Get-GraphAccessToken { [CmdletBinding()] param ( [Parameter(Mandatory = $false)] [ValidateNotNullOrEmpty()] [switch]$UseMSI ) if ($UseMSI) { try { [void](Connect-AzAccount -Identity) $ResourceURL = "https://graph.microsoft.com" $global:BearerToken = [string](Get-AzAccessToken -ResourceUrl $ResourceURL).Token return $global:BearerToken } catch { Write-Warning $Error.Exception[0] } } Else { try { if (Get-Command -Name Connect-AzAccount) { [void](Connect-AzAccount) $ResourceURL = "https://graph.microsoft.com" $global:BearerToken = [string](Get-AzAccessToken -ResourceUrl $ResourceURL).Token return $global:BearerToken } } catch { Write-Warning $Error.Exception[0] } } } |