Locking fields

Some service providers support locking the token and wallet address fields within their widgets. To do this, simply pass in the lockFields param to the widget endpoint with the values of destinationCurrencyCode/sourceCurrencyCode (depending on buy vs sell flow), walletAddress, or both. Here are the service providers that support locking those fields in their widgets:

	Locking cryptocurrency	Locking wallet address
AlchemyPay	Always locked when passed in	Always locked when passed in
Banxa	Not supported	Not supported
Binance Connect	Always locked	Not supported
Blockchain	Always locked when passed in	Always locked when passed in
BTC Direct	Supported	Supported
Coinbase	Not supported	Not supported
Eldorado	Always locked when passed in	Always locked when passed in
Fonbnk	When we lock the wallet address crypto currency also get locked	Supported
Guardarian	Always locked when passed in	Supported
Koywe	Always locked when passed in	Always locked when passed in
Kryptonim	Always locked when passed in	Not supported
Mercuryo	Supported	Not Supported
Onmeta	Always locked when passed in	Not Supported
Onramp Money	Always locked when passed in	Always locked when passed in
Paybis	Not supported	Not supported
Robinhood	Always locked when passed in	Always locked when passed in
Stripe	Supported	Supported
Swapped	Not Supported	Not Supported
Topper	Supported	Supported
Transak	Supported	Supported
TransFi	Always locked when passed in	Always locked when passed in
Unlimit	Supported	Supported
Yellowcard	Always locked when passed in	Always locked when passed in

Here's a sample buy request with both the token and wallet address fields locked:

{
    "sessionData": {
        "walletAddress": "2N3oefVeg6stiTb5Kh3ozCSkaqmx91FDbsm",
        "countryCode": "US",
        "sourceCurrencyCode": "USD",
        "sourceAmount": "100",
        "destinationCurrencyCode": "USDC",
        "serviceProvider": "TRANSAK",
        "lockFields": ["destinationCurrencyCode","walletAddress"]
    },
    "externalCustomerId": "test1",
    "externalSessionId": "test1"
}