curl --request POST \
  --url https://{defaultHost}/v1/downloads \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "download": {
    "media": "ca785cf1-3bcc-4d02-be17-81daf6447850",
    "product": "1b58c191-394b-4562-92d9-726045a56153"
  }
}
'

import requests

url = "https://{defaultHost}/v1/downloads"

payload = { "download": {
        "media": "ca785cf1-3bcc-4d02-be17-81daf6447850",
        "product": "1b58c191-394b-4562-92d9-726045a56153"
    } }
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({
    download: {
      media: 'ca785cf1-3bcc-4d02-be17-81daf6447850',
      product: '1b58c191-394b-4562-92d9-726045a56153'
    }
  })
};

fetch('https://{defaultHost}/v1/downloads', 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://{defaultHost}/v1/downloads",
  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([
    'download' => [
        'media' => 'ca785cf1-3bcc-4d02-be17-81daf6447850',
        'product' => '1b58c191-394b-4562-92d9-726045a56153'
    ]
  ]),
  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://{defaultHost}/v1/downloads"

	payload := strings.NewReader("{\n  \"download\": {\n    \"media\": \"ca785cf1-3bcc-4d02-be17-81daf6447850\",\n    \"product\": \"1b58c191-394b-4562-92d9-726045a56153\"\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://{defaultHost}/v1/downloads")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"download\": {\n    \"media\": \"ca785cf1-3bcc-4d02-be17-81daf6447850\",\n    \"product\": \"1b58c191-394b-4562-92d9-726045a56153\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{defaultHost}/v1/downloads")

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  \"download\": {\n    \"media\": \"ca785cf1-3bcc-4d02-be17-81daf6447850\",\n    \"product\": \"1b58c191-394b-4562-92d9-726045a56153\"\n  }\n}"

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

{
  "id": "cbbc1d67-181f-4b51-9ba4-b2070774541b",
  "object": "download",
  "alt": null,
  "archived": false,
  "archived_at": null,
  "name": null,
  "title": null,
  "url": null,
  "media": "ca785cf1-3bcc-4d02-be17-81daf6447850",
  "product": "1b58c191-394b-4562-92d9-726045a56153",
  "variant": null,
  "created_at": 1782485827,
  "updated_at": 1782485827
}