Get-Account.ps1

<#
.Synopsis
   The function returns list of attendance accounts
.DESCRIPTION
   The function returns a list of all attendance accounts that are defined in the attendance system, including export parameters.
.PARAMETER URL
    Server API url.
.PARAMETER Token
    Authentication token for accessing API data. If you use the token for authentication, don't enter access key.
.PARAMETER AccessKey
    The AccessKey to get an authentication token for accessing API data. If you use the access key to get authentication token, don't enter token.
.EXAMPLE
   Get-Account -URL https://intranet.company.com/webtime12/api -AccessKey 56879065
   This command retrieves the list of attendance accounts with authentication via AccessKey
.EXAMPLE
   Get-Account -URL https://intranet.company.com/webtime12/api -Token $MyToken
   This command retrieves the list of attendance accounts with authentication via Token
#>

function Get-Account {
   [CmdletBinding(DefaultParameterSetName='AccessKey')]
   param(
        [Parameter(Mandatory = $true)]
        [string]$URL,
        [Parameter(Mandatory = $false,ParameterSetName='Token')]
        [string]$Token,
        [Parameter(Mandatory = $true,ParameterSetName='AccessKey')]
        [string]$AccessKey
    )

    Process {

        if ($PSCmdlet.ParameterSetName -eq 'AccessKey') {
            $SchemeToken = Get-Token -URL $URL -AccessKey $AccessKey
            $Token = $SchemeToken.Scheme + " " + $SchemeToken.Token
            }

       $url = $url + "/CodeLists/Accounts"

       $Body = @{}

       $json = $body | ConvertTo-Json
       Write-Verbose -Message "Send request to API endpoint $URL with access key $Token."
       $Account = Invoke-RestMethod -Method Post -Uri $url -Headers @{ Authorization = $Token } -Body $json -ContentType 'application/json'

       Write-Verbose -Message "Return object Absences."
       Write-Output $Account

    }
}