curl --request POST \
  --url https://extraction-api.nanonets.com/api/v2/classify/async \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "input": [
    "file://a1b2c3d4-e5f6-7890-abcd-ef1234567890",
    "file://c3d4e5f6-a7b8-9012-cdef-a12345678901"
  ],
  "classification_config": {
    "categories": [
      {
        "name": "Invoice"
      },
      {
        "name": "Receipt"
      }
    ],
    "mode": "document"
  }
}
'

import requests

url = "https://extraction-api.nanonets.com/api/v2/classify/async"

payload = {
    "input": ["file://a1b2c3d4-e5f6-7890-abcd-ef1234567890", "file://c3d4e5f6-a7b8-9012-cdef-a12345678901"],
    "classification_config": {
        "categories": [{ "name": "Invoice" }, { "name": "Receipt" }],
        "mode": "document"
    }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    input: [
      'file://a1b2c3d4-e5f6-7890-abcd-ef1234567890',
      'file://c3d4e5f6-a7b8-9012-cdef-a12345678901'
    ],
    classification_config: {categories: [{name: 'Invoice'}, {name: 'Receipt'}], mode: 'document'}
  })
};

fetch('https://extraction-api.nanonets.com/api/v2/classify/async', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://extraction-api.nanonets.com/api/v2/classify/async",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'input' => [
        'file://a1b2c3d4-e5f6-7890-abcd-ef1234567890',
        'file://c3d4e5f6-a7b8-9012-cdef-a12345678901'
    ],
    'classification_config' => [
        'categories' => [
                [
                                'name' => 'Invoice'
                ],
                [
                                'name' => 'Receipt'
                ]
        ],
        'mode' => 'document'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://extraction-api.nanonets.com/api/v2/classify/async"

	payload := strings.NewReader("{\n  \"input\": [\n    \"file://a1b2c3d4-e5f6-7890-abcd-ef1234567890\",\n    \"file://c3d4e5f6-a7b8-9012-cdef-a12345678901\"\n  ],\n  \"classification_config\": {\n    \"categories\": [\n      {\n        \"name\": \"Invoice\"\n      },\n      {\n        \"name\": \"Receipt\"\n      }\n    ],\n    \"mode\": \"document\"\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://extraction-api.nanonets.com/api/v2/classify/async")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"input\": [\n    \"file://a1b2c3d4-e5f6-7890-abcd-ef1234567890\",\n    \"file://c3d4e5f6-a7b8-9012-cdef-a12345678901\"\n  ],\n  \"classification_config\": {\n    \"categories\": [\n      {\n        \"name\": \"Invoice\"\n      },\n      {\n        \"name\": \"Receipt\"\n      }\n    ],\n    \"mode\": \"document\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://extraction-api.nanonets.com/api/v2/classify/async")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"input\": [\n    \"file://a1b2c3d4-e5f6-7890-abcd-ef1234567890\",\n    \"file://c3d4e5f6-a7b8-9012-cdef-a12345678901\"\n  ],\n  \"classification_config\": {\n    \"categories\": [\n      {\n        \"name\": \"Invoice\"\n      },\n      {\n        \"name\": \"Receipt\"\n      }\n    ],\n    \"mode\": \"document\"\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "success": true,
  "message": "<string>",
  "total": 123,
  "items": [
    {
      "input": "<string>",
      "record_id": "<string>",
      "file_id": "<string>",
      "error": "<string>"
    }
  ],
  "batch_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}

{
  "detail": "<string>"
}

{
  "detail": "<string>"
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}