notify.ps1

param (
    [Parameter(Mandatory=$true)][string]$client,
    [string]$title = "Test Title",
    [string]$message = "Test Message"
)

$data = @{
    id = '1'
    jsonrpc = '2.0'
    method='GUI.ShowNotification'
    params = @{
         title = $title
         message = $message
    }
}

$uri = 'http://' + $client + ':3005/jsonrpc'
$json = $data | ConvertTo-Json
$response = Invoke-RestMethod -Uri $uri -Method Post -Body $json -ContentType 'application/json'
$response.result