curl --request POST \
  --url https://{api_base_url}/datasets/{dataset_id}/documents/metadata \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "operation_data": [
    {
      "document_id": "<string>",
      "metadata_list": [
        {
          "id": "<string>",
          "name": "<string>",
          "value": "<unknown>"
        }
      ],
      "partial_update": false
    }
  ]
}
'

import requests

url = "https://{api_base_url}/datasets/{dataset_id}/documents/metadata"

payload = { "operation_data": [
        {
            "document_id": "<string>",
            "metadata_list": [
                {
                    "id": "<string>",
                    "name": "<string>",
                    "value": "<unknown>"
                }
            ],
            "partial_update": False
        }
    ] }
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({
    operation_data: [
      {
        document_id: '<string>',
        metadata_list: [{id: '<string>', name: '<string>', value: '<unknown>'}],
        partial_update: false
      }
    ]
  })
};

fetch('https://{api_base_url}/datasets/{dataset_id}/documents/metadata', 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://{api_base_url}/datasets/{dataset_id}/documents/metadata",
  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([
    'operation_data' => [
        [
                'document_id' => '<string>',
                'metadata_list' => [
                                [
                                                                'id' => '<string>',
                                                                'name' => '<string>',
                                                                'value' => '<unknown>'
                                ]
                ],
                'partial_update' => false
        ]
    ]
  ]),
  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://{api_base_url}/datasets/{dataset_id}/documents/metadata"

	payload := strings.NewReader("{\n  \"operation_data\": [\n    {\n      \"document_id\": \"<string>\",\n      \"metadata_list\": [\n        {\n          \"id\": \"<string>\",\n          \"name\": \"<string>\",\n          \"value\": \"<unknown>\"\n        }\n      ],\n      \"partial_update\": false\n    }\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://{api_base_url}/datasets/{dataset_id}/documents/metadata")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"operation_data\": [\n    {\n      \"document_id\": \"<string>\",\n      \"metadata_list\": [\n        {\n          \"id\": \"<string>\",\n          \"name\": \"<string>\",\n          \"value\": \"<unknown>\"\n        }\n      ],\n      \"partial_update\": false\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{api_base_url}/datasets/{dataset_id}/documents/metadata")

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  \"operation_data\": [\n    {\n      \"document_id\": \"<string>\",\n      \"metadata_list\": [\n        {\n          \"id\": \"<string>\",\n          \"name\": \"<string>\",\n          \"value\": \"<unknown>\"\n        }\n      ],\n      \"partial_update\": false\n    }\n  ]\n}"

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

{
  "result": "success"
}

{
  "status": 400,
  "code": "invalid_param",
  "message": "Document not found."
}

{
  "status": 403,
  "code": "forbidden",
  "message": "Dataset api access is not enabled."
}

{
  "status": 404,
  "code": "not_found",
  "message": "Dataset not found."
}