Http request

POST /photo/search/v2/update 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: 191

{
  "fields_to_return" : [ "*" ],
  "records" : [ {
    "_id" : "1",
    "day" : "monday"
  }, {
    "_id" : "2",
    "day" : "tuesday"
  }, {
    "_id" : "3",
    "day" : "wednesday"
  } ]
}