Remote#fee_tx: Return an Amount of fees for a specified number of units.

src/js/ripple/remote.js

@@ -1437,15 +1437,29 @@ Remote.prototype.transaction = function () {
   return new Transaction(this);
 };
 
+/**
+ * Calculate a transaction fee for a number of tx fee units.
+ *
+ * This takes into account the last known network and local load fees.
+ *
+ * @return {Amount} Final fee in XRP for specified number of fee units.
+ */
+Remote.prototype.fee_tx = function (units)
+{
+  var fee_unit = this.fee_tx_unit();
+
+  return Amount.from_json(""+Math.ceil(units * fee_unit));
+};
+
 /**
  * Get the current recommended transaction fee unit.
  *
  * Multiply this value with the number of fee units in order to calculate the
  * recommended fee for the transaction you are trying to submit.
  *
- * @return {Number} Recommended amount for one fee unit.
+ * @return {Number} Recommended amount for one fee unit as float.
  */
-Remote.prototype.fee_tx = function ()
+Remote.prototype.fee_tx_unit = function ()
 {
   var fee_unit = this._fee_base / this._fee_ref;
 

src/js/ripple/transaction.js

@@ -108,7 +108,7 @@ var Transaction = function (remote) {
 util.inherits(Transaction, EventEmitter);
 
 // XXX This needs to be determined from the network.
-Transaction.fees = {
+Transaction.fee_units = {
   'default'         : 10,
 };
 
@@ -196,7 +196,7 @@ Transaction.prototype.complete = function () {
   var tx_json = this.tx_json;
 
   if ("undefined" === typeof tx_json.Fee && this.remote.local_fee) {
-    this.tx_json.Fee = "" + Math.ceil(this.remote.fee_tx() * this.fee_units());
+    this.tx_json.Fee = this.remote.fee_tx(this.fee_units()).to_json();
   }
 
   if ("undefined" === typeof tx_json.SigningPubKey && (!this.remote || this.remote.local_signing)) {
@@ -714,10 +714,12 @@ Transaction.prototype.wallet_add = function (src, amount, authorized_key, public
  * current load on both the network and the server.
  *
  * @see https://ripple.com/wiki/Transaction_Fee
+ *
+ * @return {Number} Number of fee units for this transaction.
  */
 Transaction.prototype.fee_units = function ()
 {
-  return Transaction.fees["default"];
+  return Transaction.fee_units["default"];
 };
 
 exports.Transaction     = Transaction;