curl https://api2.ecomailapp.cz/data-feeds/1/refresh \
  -H "key: YOUR_API_KEY" \
  -H "Content-Type: application/json"

$feedId = 1;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://api2.ecomailapp.cz/data-feeds/{$feedId}/refresh");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'key: YOUR_API_KEY',
    'Content-Type: application/json',
]);
$response = curl_exec($ch);
curl_close($ch);

{
  "message": "Your feed is being refreshed"
}

{
  "errors": "Account must be marketer+ tariff"
}

{
  "errors": "Feed can be refreshed just once per hour"
}