Endpoints params with ParameterSetName

PowerShell Universal
1

Good day,

I have found a strange bug where Parametersetname don’t work as intended when endpoint Authentication is enabled. Having the following endpoint with this SetNames.

param(
    [Parameter(Mandatory = $false, ParameterSetName = 'Folder')]
    [Parameter(Mandatory = $false, ParameterSetName = 'Item')]
    [string]$InstanceId,
    [Parameter(Mandatory = $true, ParameterSetName = 'Folder')]
    [Parameter(Mandatory = $true, ParameterSetName = 'Item')]
    [ValidateSet('Folder', 'Item', IgnoreCase = $true)]
    [string]$Object,
    [Parameter(Mandatory = $true, ParameterSetName = 'Folder')]
    [string]$Name,
    [Parameter(Mandatory = $true, ParameterSetName = 'Item')]
    [string]$FolderId,
    [Parameter(Mandatory = $true, ParameterSetName = 'Item')]
    [string]$Note,
    [Parameter(Mandatory = $false, ParameterSetName = 'Item')]
    [string]$UserName = 'admin',
    [Parameter(Mandatory = $false, ParameterSetName = 'Item')]
    [int]$PWLength = 16,
    [Parameter(Mandatory = $false, ParameterSetName = 'Item')]
    [ValidateSet('ul', 'uln', 'ulns', IgnoreCase = $true)]
    [string]$PWStrength = 'ulns'
)

Calling https://server/api/?Object=Item&FolderId=Test&Note=Test&PWLength=25
will succeed with the proper respons, however
https://server/api?Object=Folder&Name=Test
will throw error

Parameter set cannot be resolved using the specified named parameters. One or more parameters issued cannot be used together or an insufficient number of parameters were provided.

These Parameters should work as I have tested them also in a simple Function outside PSU.
Also, this works when endpoint authentication is disabled for this endpoint.

Any help would be appreciated

regards
Elmar

Product: PowerShell Universal
Version: 3.5.4
2

After a lot of Time, I found out the issues :slight_smile:

$UserName is reserved and set from PSU when used together with authentication.
Thought it returns the same as the documented $Identity.

@adam you maight want to add it to Variables - PowerShell Universal