| Name | Type | Description | Notes |
|---|---|---|---|
| preview_id | string | Preview result ID | [optional] |
| sell_currency | string | Currency to sell which can be retrieved from supported currency list API `GET /flash_swap/currencies` | |
| sell_amount | string | Amount to sell. It is required to choose one parameter between `sell_amount` and `buy_amount` | [optional] |
| buy_currency | string | Currency to buy which can be retrieved from supported currency list API `GET /flash_swap/currencies` | |
| buy_amount | string | Amount to buy. It is required to choose one parameter between `sell_amount` and `buy_amount` | [optional] |