curl -X GET \
 /customers/{customerId}/children \
 --header "Authorization: Bearer <token>"

import requests

url = "https://coreapi.io/customers/{customerId}/children"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://coreapi.io/customers/{customerId}/children', 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://coreapi.io/customers/{customerId}/children",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

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

curl_close($curl);

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

[
  {
    "id": "00000000-0000-0000-0000-000000000001",
    "customerNumber": "CUST-101",
    "name": "Radiologie Abteilung",
    "companyName": "Radiologie Abteilung",
    "email": "radio@klinik.de",
    "status": "STATUS_ACTIVE",
    "activeSubscriptionCount": 3
  }
]