curl --request POST \
  --url https://api-sandbox.y.uno/v1/checkout/sessions \
  --header 'Content-Type: application/json' \
  --data '
{
  "account_id": "YOUR_ACCOUNT_ID",
  "merchant_order_id": "order-001",
  "payment_description": "Order #001",
  "country": "US",
  "customer_id": "CUSTOMER_UUID",
  "amount": {
    "currency": "USD",
    "value": 10000
  },
  "callback_url": "https://example.com/checkout/callback",
  "workflow": "SDK_CHECKOUT"
}
'

{
  "checkout_session": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "merchant_order_id": "<string>",
  "country": "<string>",
  "payment_description": "<string>",
  "customer_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "amount": {
    "currency": "<string>",
    "value": 123
  },
  "workflow": "<string>",
  "created_at": "2023-11-07T05:31:56Z"
}