curl --request POST \
  --url https://checkout.kalixo.io/v1/checkout-sessions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "amount": 2,
  "currency": "EUR",
  "country": "NL",
  "reference": "<string>",
  "return_url": "<string>",
  "description": "<string>",
  "customer": "<string>",
  "customer_email": "[email protected]",
  "line_items": [
    {
      "name": "<string>",
      "quantity": 2,
      "unit_amount": 1,
      "tax_amount": 1,
      "tax_percentage": 123,
      "sku": "<string>",
      "product_url": "<string>",
      "image_url": "<string>"
    }
  ],
  "store_payment_method": true,
  "locale": "nl-NL",
  "expires_in": 3600,
  "metadata": {}
}
'

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    amount: 2,
    currency: 'EUR',
    country: 'NL',
    reference: '<string>',
    return_url: '<string>',
    description: '<string>',
    customer: '<string>',
    customer_email: '[email protected]',
    line_items: [
      {
        name: '<string>',
        quantity: 2,
        unit_amount: 1,
        tax_amount: 1,
        tax_percentage: 123,
        sku: '<string>',
        product_url: '<string>',
        image_url: '<string>'
      }
    ],
    store_payment_method: true,
    locale: 'nl-NL',
    expires_in: 3600,
    metadata: {}
  })
};

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

import requests

url = "https://checkout.kalixo.io/v1/checkout-sessions"

payload = {
    "amount": 2,
    "currency": "EUR",
    "country": "NL",
    "reference": "<string>",
    "return_url": "<string>",
    "description": "<string>",
    "customer": "<string>",
    "customer_email": "[email protected]",
    "line_items": [
        {
            "name": "<string>",
            "quantity": 2,
            "unit_amount": 1,
            "tax_amount": 1,
            "tax_percentage": 123,
            "sku": "<string>",
            "product_url": "<string>",
            "image_url": "<string>"
        }
    ],
    "store_payment_method": True,
    "locale": "nl-NL",
    "expires_in": 3600,
    "metadata": {}
}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://checkout.kalixo.io/v1/checkout-sessions",
  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([
    'amount' => 2,
    'currency' => 'EUR',
    'country' => 'NL',
    'reference' => '<string>',
    'return_url' => '<string>',
    'description' => '<string>',
    'customer' => '<string>',
    'customer_email' => '[email protected]',
    'line_items' => [
        [
                'name' => '<string>',
                'quantity' => 2,
                'unit_amount' => 1,
                'tax_amount' => 1,
                'tax_percentage' => 123,
                'sku' => '<string>',
                'product_url' => '<string>',
                'image_url' => '<string>'
        ]
    ],
    'store_payment_method' => true,
    'locale' => 'nl-NL',
    'expires_in' => 3600,
    'metadata' => [
        
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-key>"
  ],
]);

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

curl_close($curl);

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

{
  "id": "cs_01JABCDEF",
  "object": "checkout_session",
  "status": "open",
  "payment": "<string>",
  "amount": 1,
  "currency": "EUR",
  "country": "NL",
  "reference": "<string>",
  "capture_method": "automatic",
  "return_url": "<string>",
  "url": "<string>",
  "expires_at": "2023-11-07T05:31:56Z",
  "created_at": "2023-11-07T05:31:56Z",
  "livemode": true,
  "metadata": {},
  "description": "<string>",
  "customer": "<string>",
  "customer_email": "<string>",
  "line_items": [
    {
      "name": "<string>",
      "quantity": 2,
      "unit_amount": 1,
      "tax_amount": 1,
      "tax_percentage": 123,
      "sku": "<string>",
      "product_url": "<string>",
      "image_url": "<string>"
    }
  ],
  "store_payment_method": true,
  "locale": "en-GB",
  "client_secret": "<string>",
  "amount_locked": true,
  "payment_link": "<string>"
}

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