Http request

POST /photo/search/v2/nearDupsInsert HTTP/1.1
Content-Type: application/json;charset=UTF-8
collection-id: mycoll_id
Authorization: Token 1af538baa90-----XXX-----baf83ff24
Host: api.ximilar.com
Content-Length: 313

{
  "cand_set_size" : 1000,
  "fields_to_return" : [ "_id" ],
  "radius" : 5.0,
  "records" : [ {
    "_id" : "1",
    "_url" : "http://mydomain.com/img.png"
  }, {
    "_base64" : "data:image/png;base64,ABC...",
    "_id" : "2"
  }, {
    "_id" : "3",
    "_url" : "http://mydomain.com/another_image.jpg"
  } ]
}