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"
} ]
}