To implement the logic of using virtual currency to purchase items:

1. Call the PurchaseForVirtualCurrency SDK method. When calling it, pass a function that is called when the order transitions to the done status in the onSuccess parameter.

2. Update the inventory on the client side of the application using one of the following options:

1. • using SDK methods for displaying user inventory
   • using the order content data that is passed to the onSuccess callback function of the purchase methods

3. Update the user's virtual currency balance using the GetVirtualCurrencyBalance SDK method.