PowerShell から IFTTT 経由で LINE Notify

Write-LINE.ps1

[CmdletBinding()]
Param
(
    [ValidateNotNullOrEmpty()]
    [string] $Title = "",

    [parameter(ValueFromPipeline=$true)]
    $Value,

    [string] $PhotoURL,

    [string] $Delimiter,

    [switch] $PassThru
)

Begin
{
    $event = "Write-LINE"
    $key = throw "Your key"

    $BoundParameter = @{
	    Method = "Post"
	    URI = "https://maker.ifttt.com/trigger/${event}/with/key/${key}"

	    Body = @{
            value1 = ""
            value2 = $PhotoURL
        }
    }

    $list = New-Object System.Collections.ArrayList
    if (-not [string]::IsNullOrEmpty($Title)) {[void]$list.Add($Title)}
}

Process
{
    if ($PassThru) {$Value}
    [void]$list.Add($Value)
}

End
{
    $BoundParameter.Body.value1 = 
        if ([string]::IsNullOrEmpty($Delimiter)) {Out-String -InputObject $list}
        else {$list -join $Delimiter}

    Invoke-RestMethod @BoundParameter | Write-Verbose
}