function Invoke-SSPRequest {
    Param(
        [Parameter(Mandatory=$false)]
        [ValidateSet('Get','Post','Put','Delete')]
        [System.String] $Method = 'Get',
        [Parameter(Mandatory=$true)]
        [System.String] $Endpoint,
        [Parameter(Mandatory=$false)]
        [System.String] $Query,
        [Parameter(Mandatory=$false)]
        [System.String] $Body
    )

    if($Query){
        $Uri = $("https://localhost:7260/api/"+$Endpoint+"/"+$Query)
    }else{
        $Uri = $("https://localhost:7260/api/"+$Endpoint)
    }

    switch($Method){
        {($_ -eq "Get") -or ($_ -eq "Delete")} {
            $Parameter = @{}
            $Parameter.Add("Method",$Method)
            $Parameter.Add("Uri", $Uri)
            $Parameter.Add("UseDefaultCredentials",$true)
            $Parameter.Add("ContentType","application/json")
        }

        {($_ -eq "Post") -or ($_ -eq "Put")} {
            $Parameter = @{}
            $Parameter.Add("Method",$Method)
            $Parameter.Add("Uri", $Uri)
            $Parameter.Add("Body", $Body)
            $Parameter.Add("UseDefaultCredentials",$true)
            $Parameter.Add("ContentType","application/json")
        }
    }

    try {
        # Versuch, die Anfrage auszuführen
        $Response = Invoke-RestMethod @Parameter
        return $Response
    } catch [System.Net.WebException] {
        # Fehler abfangen und Antwort auswerten
        $ErrorResponse = $_.Exception.Response
        if ($ErrorResponse -ne $null) {
            $Reader = New-Object System.IO.StreamReader($ErrorResponse.GetResponseStream())
            return $($Reader.ReadToEnd() | ConvertFrom-Json)
        } else {
            Write-Host "Kein Antwortkörper verfügbar."
        }
    }
}