QlikSense-GetAppMetadata.ps1

Connect-QlikSense -TrustAllCertificates #-Hostname "ifRequired" -VirtualProxy "ifRequired" 
$Apps = Get-QSApp 
$Proxy = Get-QSProxyservice -Local
$Hostname = $Proxy.ServerNodeConfiguration.HostName
$CollectedMetadata = New-Object System.Collections.Generic.List[PSCustomObject]
foreach($App In $Apps){
    $URL = "https://$($Hostname)/api/v1/apps/$($App.Id)/data/metadata"
    try{
        $Metadata = Invoke-QSGet $URL -Raw
        $CollectedMetadata.Add([PSCustomObject]@{App=$App;Metadata=$Metadata})
    }catch{
        $CollectedMetadata.Add([PSCustomObject]@{App=$App;Metadata=$null})
    }
}
$CollectedMetadata