functions/azure/Get-Application.ps1
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function Get-Application { param ( [Parameter(Mandatory = $true, ParameterSetName = "ByDisplayName")] [string]$DisplayName, [Parameter(Mandatory = $true, ParameterSetName = "ByAppId")] [guid]$AppId, [Parameter(Mandatory = $true, ParameterSetName = "ById")] [guid]$Id ) $uri = if ($PSCmdlet.ParameterSetName -eq "ByDisplayName") { "https://graph.microsoft.com/v1.0/applications?`$filter=displayName eq '$DisplayName'" } elseif ($PSCmdlet.ParameterSetName -eq "ByAppId") { "https://graph.microsoft.com/v1.0/applications?`$filter=appId eq '$([string]$AppId)'" } else { "https://graph.microsoft.com/v1.0/applications/$Id" } $headers = @{ Authorization = Get-RequestHeaderAuthorization -RequestUri $uri "Content-Type" = "application/json" } try { $response = Invoke-RestMethod -Method GET -Uri $uri -Headers $headers if ($PSCmdlet.ParameterSetName -eq "ByDisplayName" -or $PSCmdlet.ParameterSetName -eq "ByAppId") { if ($response.value.Count -eq 0) { Write-Error "No application found with display name '$DisplayName'." return $null } if ($response.value.Count -gt 1) { Write-Warning "Multiple applications found with display name '$DisplayName'!" } return $response.value[0] } else { return $response } } catch { Write-Error "Failed to retrieve application: $_" return $null } } |