curl --request POST \
  --url https://api.pagou.ai/v2/apps/checkout/link \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'x-checkout-token: <x-checkout-token>' \
  --data '
{
  "items": [
    {
      "variant_external_id": "<string>",
      "quantity": 4503599627370496,
      "price_cents": 4503599627370495,
      "currency": "BRL",
      "name": "<string>",
      "image_url": "<string>"
    }
  ],
  "title": "<string>",
  "success_url": "<string>",
  "cancel_url": "<string>"
}
'

{
  "data": {
    "id": 123,
    "slug": "<string>",
    "checkout_url": "<string>",
    "currency": "<string>",
    "amount_micros": "<string>"
  }
}