shell> curl -X POST --data-binary @- --dump - http://localhost:8529/_api/edge/?collection=edges&from=vertices/1&to=vertices/2
{ 
  "name" : "Emil" 
}

HTTP/1.1 202 Accepted
content-type: application/json; charset=utf-8
etag: "1530669219"
location: /_db/_system/_api/document/edges/1530669219

{ 
  "error" : false, 
  "_id" : "edges/1530669219", 
  "_rev" : "1530669219", 
  "_key" : "1530669219" 
}
shell> curl --data-binary @- --dump - http://localhost:8529/_api/edge/edges/1530669219

HTTP/1.1 200 OK
content-type: application/json; charset=utf-8
etag: "1530669219"

{ 
  "name" : "Emil", 
  "_id" : "edges/1530669219", 
  "_rev" : "1530669219", 
  "_key" : "1530669219", 
  "_from" : "vertices/1", 
  "_to" : "vertices/2" 
}