Get-SteamWishList.ps1

function Get-SteamWishList {
    <#
        .SYNOPSIS
            Get wishlist of Steam user
        .DESCRIPTION
            Get the wishlist of any public Steam user accounts.
        .EXAMPLE
            Get-SteamWishList user01
            Get the wishlist for Steam user account 'user01'
        .NOTES
            Remember that this function will only ever be able to get
            the wishlist from Steam accounts where the wishlist is made public.

            Author: Øyvind Kallstad
            Date: 02.01.2016
            Version: 1.0
        .LINK
            https://communary.wordpress.com/
    #>
    #requires -Version 3    
    [CmdletBinding()]
    param (
        [Parameter(Position = 1, Mandatory)]
        [ValidateNotNullOrEmpty()]
        [string] $SteamUserId
    )

    $url = "http://steamcommunity.com/id/$($SteamUserId)/wishlist"
    $steamWishList = Invoke-WebRequest -Uri $url

    $steamWishList.ParsedHtml.body.getElementsByClassName('wishlistRowItem') | ForEach-Object {
        $childNodes = $_.childNodes
        $name = $childNodes | Where-Object {$_.tagName -eq 'H4'} | Select-Object -ExpandProperty InnerText
        $added = $childNodes | Where-Object {$_.className -eq 'wishlist_added_on ellipsis'} | Select-Object -ExpandProperty InnerText
        $rank = ($childNodes | Where-Object {$_.className -eq 'wishlistRankCtn'}).textContent
        $itemPriceData = ($childNodes | Where-Object {$_.className -eq 'gameListPriceData'}).childNodes
        $itemDiscountPercent = (($itemPriceData | Where-Object {$_.className -eq 'discount_block discount_block_inline'}).childNodes | Where-Object {$_.className -eq 'discount_pct'}).textContent
        if ($itemDiscountPercent) {
            $itemOriginalPrice = ((($itemPriceData | Where-Object {$_.className -eq 'discount_block discount_block_inline'}).childNodes | Where-Object {$_.className -eq 'discount_prices'}).childNodes | Where-Object {$_.className -eq 'discount_original_price'}).textContent
            $itemFinalPrice = ((($itemPriceData | Where-Object {$_.className -eq 'discount_block discount_block_inline'}).childNodes | Where-Object {$_.className -eq 'discount_prices'}).childNodes | Where-Object {$_.className -eq 'discount_final_price'}).textContent
        }
        else {
            $itemOriginalPrice = ($itemPriceData | Where-Object {$_.className -eq 'price'}).textContent
            $itemFinalPrice = $null
        }
    
        Write-Output (,([PSCustomObject] [Ordered] @{
            Rank = $rank
            Name = $name
            Discount = $itemDiscountPercent
            OriginalPrice = $itemOriginalPrice
            FinalPrice = $itemFinalPrice
            Added = $added
        }))
    }
}