- Fixed partial payment exploit

- added custom token to displayable amount

content/_code-samples/build-a-wallet/desktop-js/library/4_helpers.js

@@ -6,9 +6,22 @@ const prepareTxData = (transactions) => {
         type: transaction.tx.TransactionType,
         from: transaction.tx.Account,
         to: transaction.tx.Destination,
-        value: xrpl.dropsToXrp(transaction.tx.Amount),
+        value: getDisplayableAmount(transaction.meta.delivered_amount),
         hash: transaction.tx.hash
     }))
 }
 
+const getDisplayableAmount = (rawAmount) => {
+    if (rawAmount === 'unavailable') {
+        // Special case for pre-2014 partial payments.
+        return rawAmount
+    } else if (typeof rawAmount === 'string') {
+        // It's an XRP amount in drops. Convert to decimal.
+        return xrpl.dropsToXrp(rawAmount) + ' XRP'
+    } else {
+        //It's a token (IOU) amount.
+        return rawAmount.value + ' ' + rawAmount.currency
+    }
+}
+
 module.exports = { prepareTxData }