curl --request PUT \
  --url https://facture.ar/api/cuits/{cuitId}/defaults \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "defaultInvoiceType": 123,
  "defaultDocTipo": 123,
  "defaultDocNro": 123,
  "defaultIvaType": 123
}
'

const options = {
  method: 'PUT',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    defaultInvoiceType: 123,
    defaultDocTipo: 123,
    defaultDocNro: 123,
    defaultIvaType: 123
  })
};

fetch('https://facture.ar/api/cuits/{cuitId}/defaults', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://facture.ar/api/cuits/{cuitId}/defaults"

payload = {
    "defaultInvoiceType": 123,
    "defaultDocTipo": 123,
    "defaultDocNro": 123,
    "defaultIvaType": 123
}
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://facture.ar/api/cuits/{cuitId}/defaults",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'defaultInvoiceType' => 123,
    'defaultDocTipo' => 123,
    'defaultDocNro' => 123,
    'defaultIvaType' => 123
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>"
  ],
]);

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

curl_close($curl);

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

{
  "cuitId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "defaultInvoiceType": 123,
  "defaultDocTipo": 123,
  "defaultDocNro": 123,
  "defaultIvaType": 123,
  "defaultCurrency": "ARS"
}

{
  "error": "<string>",
  "message": "<string>",
  "details": {}
}