GetSessionResponse

{
    "merchant_id": 0,
    "order_id": 0,
    "amount": "string",
    "address": {
        "house_number": "string",
        "postcode": "string",
        "address1": "string",
        "address2": "string"
    },
    "payment_url": "http://example.com",
    "wallet_balance": "string",
    "cancel_url": "http://example.com",
    "back_url": "http://example.com",
    "success_url": "http://example.com",
    "failure_url": "http://example.com"
}