curl https://api2.ecomailapp.cz/pipelines/1/stats \
  -H "key: YOUR_API_KEY" \
  -H "Content-Type: application/json"

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://api2.ecomailapp.cz/pipelines/1/stats');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'key: YOUR_API_KEY',
    'Content-Type: application/json',
]);
$response = curl_exec($ch);
curl_close($ch);

{
  "stats": {
    "triggered": 1,
    "ended": 1,
    "open": 0,
    "open_rate": 0,
    "total_open": 0,
    "not_opened": 2,
    "send": 2,
    "click": 1,
    "total_click": 4,
    "click_rate": 50,
    "inject": 2,
    "soft_bounce": 0,
    "hard_bounce": 0,
    "bounce": 0,
    "bounce_rate": 0,
    "conversions": 0,
    "conversions_value": 0,
    "spam": 0,
    "unsub": 0,
    "delivery_rate": 100
  }
}