addToWhitelist.scala

{-# STDLIB_VERSION 4 #-}
{-# CONTENT_TYPE DAPP #-}
{-# SCRIPT_TYPE ACCOUNT #-}

let adminPublicKey = base58'...'

func addToWhiteList(address: String) = {
    let userInTheList = getBoolean(this, address)
    let newValue = match userInTheList {
        case b: Boolean => {
            if b then throw("User is already in the list and enabled")
            else true
        }
        case _ => true
    }
    if i.callerPublicKey != adminPublicKey then throw("Only admin can call this function") else
    [
        [BooleanEntry(address, newValue)]
    ]
}

@Callable(i)
func removeFromWhiteList(address: String) = {
    if i.callerPublicKey != adminPublicKey then throw("Only admin can call this function")
    else [BooleanEntry(address, false)]
}