curl --request POST \
  --url https://{merchant_site_domain}/send-additional-required-documents-url \
  --header 'Content-Type: application/json' \
  --data '
{
  "OrderId": "Sample order id",
  "MerchantOrderId": "Sample order id from the merchant’s system",
  "CountryCode": "US",
  "AdditionalRequiredDocuments": [
    {
      "TrackingNumber": "98789723874839",
      "DocumentData": "base 64 string",
      "URL": "URL do download document",
      "DocumentTypeCode": "11",
      "DocumentTypeName": "EAD",
      "DocumentExtension": "pdf",
      "DocumentReference": "24DE85123822923B8",
      "CreationDateTime": "2024-01-30T10:55:21"
    }
  ]
}
'

import requests

url = "https://{merchant_site_domain}/send-additional-required-documents-url"

payload = {
    "OrderId": "Sample order id",
    "MerchantOrderId": "Sample order id from the merchant’s system",
    "CountryCode": "US",
    "AdditionalRequiredDocuments": [
        {
            "TrackingNumber": "98789723874839",
            "DocumentData": "base 64 string",
            "URL": "URL do download document",
            "DocumentTypeCode": "11",
            "DocumentTypeName": "EAD",
            "DocumentExtension": "pdf",
            "DocumentReference": "24DE85123822923B8",
            "CreationDateTime": "2024-01-30T10:55:21"
        }
    ]
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    OrderId: 'Sample order id',
    MerchantOrderId: 'Sample order id from the merchant’s system',
    CountryCode: 'US',
    AdditionalRequiredDocuments: [
      {
        TrackingNumber: '98789723874839',
        DocumentData: 'base 64 string',
        URL: 'URL do download document',
        DocumentTypeCode: '11',
        DocumentTypeName: 'EAD',
        DocumentExtension: 'pdf',
        DocumentReference: '24DE85123822923B8',
        CreationDateTime: '2024-01-30T10:55:21'
      }
    ]
  })
};

fetch('https://{merchant_site_domain}/send-additional-required-documents-url', 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://{merchant_site_domain}/send-additional-required-documents-url",
  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([
    'OrderId' => 'Sample order id',
    'MerchantOrderId' => 'Sample order id from the merchant’s system',
    'CountryCode' => 'US',
    'AdditionalRequiredDocuments' => [
        [
                'TrackingNumber' => '98789723874839',
                'DocumentData' => 'base 64 string',
                'URL' => 'URL do download document',
                'DocumentTypeCode' => '11',
                'DocumentTypeName' => 'EAD',
                'DocumentExtension' => 'pdf',
                'DocumentReference' => '24DE85123822923B8',
                'CreationDateTime' => '2024-01-30T10:55:21'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "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://{merchant_site_domain}/send-additional-required-documents-url"

	payload := strings.NewReader("{\n  \"OrderId\": \"Sample order id\",\n  \"MerchantOrderId\": \"Sample order id from the merchant’s system\",\n  \"CountryCode\": \"US\",\n  \"AdditionalRequiredDocuments\": [\n    {\n      \"TrackingNumber\": \"98789723874839\",\n      \"DocumentData\": \"base 64 string\",\n      \"URL\": \"URL do download document\",\n      \"DocumentTypeCode\": \"11\",\n      \"DocumentTypeName\": \"EAD\",\n      \"DocumentExtension\": \"pdf\",\n      \"DocumentReference\": \"24DE85123822923B8\",\n      \"CreationDateTime\": \"2024-01-30T10:55:21\"\n    }\n  ]\n}")

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

	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://{merchant_site_domain}/send-additional-required-documents-url")
  .header("Content-Type", "application/json")
  .body("{\n  \"OrderId\": \"Sample order id\",\n  \"MerchantOrderId\": \"Sample order id from the merchant’s system\",\n  \"CountryCode\": \"US\",\n  \"AdditionalRequiredDocuments\": [\n    {\n      \"TrackingNumber\": \"98789723874839\",\n      \"DocumentData\": \"base 64 string\",\n      \"URL\": \"URL do download document\",\n      \"DocumentTypeCode\": \"11\",\n      \"DocumentTypeName\": \"EAD\",\n      \"DocumentExtension\": \"pdf\",\n      \"DocumentReference\": \"24DE85123822923B8\",\n      \"CreationDateTime\": \"2024-01-30T10:55:21\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{merchant_site_domain}/send-additional-required-documents-url")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"OrderId\": \"Sample order id\",\n  \"MerchantOrderId\": \"Sample order id from the merchant’s system\",\n  \"CountryCode\": \"US\",\n  \"AdditionalRequiredDocuments\": [\n    {\n      \"TrackingNumber\": \"98789723874839\",\n      \"DocumentData\": \"base 64 string\",\n      \"URL\": \"URL do download document\",\n      \"DocumentTypeCode\": \"11\",\n      \"DocumentTypeName\": \"EAD\",\n      \"DocumentExtension\": \"pdf\",\n      \"DocumentReference\": \"24DE85123822923B8\",\n      \"CreationDateTime\": \"2024-01-30T10:55:21\"\n    }\n  ]\n}"

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

{
  "StatusCode": "200",
  "Success": "true",
  "Message": "...",
  "ErrorCode": "...",
  "ErrorText": "..."
}