Invoke a Discord Webhook from PowerShell

Send-Discord.ps1

[CmdletBinding()]
param(
    [Parameter(Mandatory=$True)]
    [string]$WebhookUrl,

    [Parameter(Mandatory=$True)]
    [string]$Content
)

$ErrorActionPreference = "Stop"
Set-StrictMode -Version 5.0

# For more details of what you can put in the payload, check out
#
# https://discord.com/developers/docs/resources/webhook#execute-webhook
#
$payloadDto = [PSCustomObject]@{
    content = $Content
}

$payloadJson = $payloadDto | ConvertTo-Json

Invoke-RestMethod -Uri $WebhookUrl `
    -Body $payloadJson `
    -Method "POST" `
    -ContentType "application/json" `
    -UseBasicParsing