shell> curl --data-binary @- --dump - http://localhost:8529/_api/index/products/0

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

{ 
  "id" : "products/0", 
  "type" : "primary", 
  "unique" : true, 
  "sparse" : false, 
  "selectivityEstimate" : 1, 
  "fields" : [ 
    "_key" 
  ], 
  "error" : false, 
  "code" : 200 
}