PowerShell heartbeat powershell

Download heartbeat.ps1

Posts an empty heartbeat every time it runs. Schedule via Task Scheduler (see Scheduled-task setup) every N minutes; pair with a capture.freshness check at max_silence = 2x the schedule interval.

Placeholders only. Before running, replace YOUR_URL with your capture endpoint's POST URL . (Open this page from your capture object to have these auto-filled.)

# heartbeat.ps1 — minimal site1.erralert.com check-in.
# Schedule from Task Scheduler at whatever cadence you want monitored.

$Url  = "YOUR_URL/heartbeat"
$Body = (@{
  hostname = $env:COMPUTERNAME
  ts       = [DateTimeOffset]::UtcNow.ToString("o")
}) | ConvertTo-Json -Compress

try {
  Invoke-RestMethod -Uri $Url -Method Post -Body $Body `
    -ContentType "application/json" -TimeoutSec 15 | Out-Null
  exit 0
} catch {
  Write-Error $_
  exit 1
}

Recommended pairing

Add a capture.freshness check to this capture object.
max_silence_seconds = your-schedule-interval x 2 (e.g. 600 for a 5-minute heartbeat).

What is the filename?

heartbeat.ps1 — this is the suggested name for the downloaded file. Rename freely if you prefer.