public/Import-TNDashboard.ps1

function Import-TNDashboard {
    <#
    .SYNOPSIS
        Imports dashboard files
 
    .DESCRIPTION
        Imports dashboard files
 
    .PARAMETER SessionObject
        Optional parameter to force using specific SessionObjects. By default, each command will connect to all connected servers that have been connected to using Connect-TNServer
 
    .PARAMETER FilePath
        The path to the dashboard file
 
    .PARAMETER EnableException
        By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.
        This avoids overwhelming you with 'sea of red' exceptions, but is inconvenient because it basically disables advanced scripting.
        Using this switch turns this 'nice by default' feature off and enables you to catch exceptions with your own try/catch.
 
    .EXAMPLE
        PS C:\> Get-ChildItem C:\sc\dashboard_lists | Import-TNDashboard
 
        Imports all dashboard files from C:\sc\dashboard_lists
#>

    [CmdletBinding()]
    param
    (
        [Parameter(ValueFromPipelineByPropertyName)]
        [object[]]$SessionObject = (Get-TNSession),
        [Parameter(Mandatory, ValueFromPipelineByPropertyName)]
        [Alias("FullName")]
        [ValidateScript( { Test-Path -Path $_ })]
        [string[]]$FilePath,
        [switch]$EnableException
    )
    process {
        foreach ($session in $SessionObject) {
            $PSDefaultParameterValues["*:SessionObject"] = $session
            if (-not $session.sc) {
                Stop-PSFFunction -EnableException:$EnableException -Message "Only tenable.sc supported" -Continue
            }

            $max = ((Get-TNDashboard).ID | Measure-Object -Maximum).Maximum + 1
            $files = Get-ChildItem -Path $FilePath

            foreach ($file in $files.FullName) {
                $body = $file | Publish-File -Session $session -EnableException:$EnableException -Type Asset | ConvertFrom-Json | ConvertTo-Hashtable
                $body.order = $max
                $params = @{
                    SessionObject = $session
                    Method        = "POST"
                    Path          = "/dashboard/import"
                    Parameter     = $body
                    ContentType   = "application/json"
                }

                Invoke-TnRequest @params | ConvertFrom-TNRestResponse
            }
        }
    }
}