# Checkout page
If you would like to display the widget on a separate page and avoid implementing javascript logic on your side, you can redirect a user to checkout page.
This url accepts the following parameters.
| Parameter | Required | Description |
|---|---|---|
| apiKey | Required | A unique key identifying a partner |
| wallet | Optional | Pre filled wallet for buying transactions, if you pass this parameter you also need to pass cryptoCurrency |
| cryptoCurrency | Optional | One of the supported cryptocurrencies |
| currency | Optional | One of the supported currencies |
| method | Optional | One of the supported methods , transactionType must be also provided |
| chain | Optional | This parameter is required for currencies which are supported by multiple chains, either zilliqa, ethereum, tron or binance_smart_chain |
| fiat | Optional | Pre-filled amount of local currency, cannot be used together with crypto |
| crypto | Optional | Pre-filled amount of cryptocurrency, cannot be used together with fiat |
| autoSelling | Optional | Skips instructions for selling transactions, in this case you should transfer cryptoCurrency upon "transaction-created" event |
| transactionType | Optional | Either "buy" or "sell", It will pre-select widget mode and hide the tabs |
| partnerData | Optional | A string that could help a partner to track/identify a transaction |
| redirectUrl | Optional | The page where you want to redirect the user |
| isWebView | Optional | Set this to true if you would like to inject the widget into a WebView on mobile device |
| lang | Optional | Set language of the widget, either en, zh, th, or vi |
| destinationTag | Optional | Required for crypto with destination tag |