curl --request GET \
  --url https://ai-loop.alpeadria.com/api/public/network-data

{
  "success": true,
  "data": {
    "nodes": [
      {
        "node_id": "1",
        "label": "Venice",
        "type": "gateway",
        "lat": 45.44,
        "lng": 12.31
      }
    ],
    "legs": [
      {
        "id": "20",
        "from": "Venice",
        "to": "Milan",
        "type": "train",
        "distance_km": "280"
      }
    ]
  }
}