curl --request GET \
  --url https://checkout.kalixo.io/v1/client/checkout-sessions/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Kalixo-Client-Secret: <kalixo-client-secret>'

const options = {
  method: 'GET',
  headers: {
    'Kalixo-Client-Secret': '<kalixo-client-secret>',
    Authorization: 'Bearer <token>'
  }
};

fetch('https://checkout.kalixo.io/v1/client/checkout-sessions/{id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://checkout.kalixo.io/v1/client/checkout-sessions/{id}"

headers = {
    "Kalixo-Client-Secret": "<kalixo-client-secret>",
    "Authorization": "Bearer <token>"
}

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

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://checkout.kalixo.io/v1/client/checkout-sessions/{id}",
  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>",
    "Kalixo-Client-Secret: <kalixo-client-secret>"
  ],
]);

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

curl_close($curl);

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

{
  "id": "<string>",
  "status": "open",
  "payment_status": "requires_payment_method",
  "amount": 1,
  "currency": "EUR",
  "country": "NL",
  "locale": "<string>",
  "renderer": {
    "type": "<string>",
    "config": {},
    "version": "<string>"
  },
  "description": "<string>",
  "partner_name": "<string>",
  "store_payment_method": true,
  "return_url": "<string>",
  "terms_url": "<string>",
  "theme": {}
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "amount_locked",
    "message": "<string>",
    "request_id": "<string>",
    "decline_code": "<string>",
    "param": "<string>"
  }
}