LC - How to fetch legacy Node IDs

request.sh

curl -v -X GET https://api.leadconduit.com/sources/node_ids?api_key=limitedorfullapikey

HTTP/1.1 200 OK
Connection: close
Content-Type: application/json; charset=utf-8

{"count":2,
 "items":[
    {"source_id":"0987654321",
     "source_node_id":"000111122",
     "source_name":"eazyleads.net",
     "campaign_id":"123456789",
     "campaign_name":"Campaign XYZ",
     "is_site":1},
    {"source_id":"8765432109",
     "source_node_id":"000111133",
     "source_name":"Source Number 2",
     "campaign_id":"123456789",
     "campaign_name":"Campaign XYZ",
     "is_site":0}]
}