curl "https://api2.ecomailapp.cz/pipelines/42/actions" \
  -H "key: YOUR_API_KEY" \
  -H "Content-Type: application/json"

$pipelineId = 42;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://api2.ecomailapp.cz/pipelines/{$pipelineId}/actions");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'key: YOUR_API_KEY',
    'Content-Type: application/json',
]);
$response = curl_exec($ch);
curl_close($ch);

{
  "data": [
    {
      "id": "abc-123",
      "type": "mail",
      "properties": {
        "name": "Welcome email",
        "template": 42
      },
      "next": ["def-456"]
    },
    {
      "id": "def-456",
      "type": "check",
      "properties": {
        "name": "Opened the welcome email?"
      },
      "next": {
        "yes": ["ghi-789"],
        "no": []
      }
    },
    {
      "id": "ghi-789",
      "type": "tag",
      "properties": {
        "tag": "engaged"
      },
      "next": []
    }
  ]
}