> curl -X GET --dump - http://localhost:8529/_api/edges/17501660?vertex=17501660/18419164&direction=in

HTTP/1.1 200 OK
content-type: application/json

{
  "edges": [
    {
      "_from": "17501660/19008988",
      "_rev": "19402204",
      "_to": "17501660/18419164",
      "_id": "17501660/19402204",
      "e": 2
    }
  ],
  "code": 200,
  "error": false
}