Deduplication

Tugus prevents duplicate events on two levels: client-side via session storage and server-side via a deterministic event_id.

Automatic event_id

The script generates a deterministic ID for every event, derived from context data. Identical events (same type + same page + same time window) receive the same ID — platforms like Meta CAPI ignore duplicates automatically.

Passing your own event_id

For server-side events, always pass your own stable ID — e.g. order_id + event_name:

tugus.track('purchase', {
  order_id:  'ORD-2024-001',
  event_id:  'purchase_ORD-2024-001',  // stable, reproducible ID
  value:     99.80,
  currency:  'EUR',
})

// Server-side
Http::post('https://collect.tugus.io/collect/' . $apiKey, [
  'event'    => 'purchase',
  'event_id' => 'purchase_' . $order->id,  // prevents double billing
  'order_id' => (string) $order->id,
  'value'    => $order->total,
]);