Merge pull request #454 from matiu/feature/builder02

accept amount a strings in setOutput

lib/TransactionBuilder.js

@@ -386,7 +386,8 @@ TransactionBuilder.prototype._setFeeAndRemainder = function(txobj) {
 //
 // Note that only some of this outputs will be selected
 // to create the transaction. The selected ones can be checked
-// after calling `setOutputs`, with `.getSelectedUnspent`
+// after calling `setOutputs`, with `.getSelectedUnspent`.
+// amountSatStr could be used to pass in the amount in satoshis, as a string.
 //
 
 TransactionBuilder.prototype.setOutputs = function(outs) {
@@ -401,7 +402,7 @@ TransactionBuilder.prototype.setOutputs = function(outs) {
 
   var l = outs.length;
   for (var i = 0; i < l; i++) {
-    var amountSat = outs[i].amountSat || util.parseValue(outs[i].amount);
+    var amountSat = outs[i].amountSat || outs[i].amountSatStr ? bignum(outs[i].amountSatStr) : util.parseValue(outs[i].amount);
     var value = util.bigIntToValue(amountSat);
     var script = TransactionBuilder._scriptForOut(outs[i]);
     var txout = {
@@ -410,8 +411,7 @@ TransactionBuilder.prototype.setOutputs = function(outs) {
     };
     txobj.outs.push(txout);
 
-    var sat = outs[i].amountSat || util.parseValue(outs[i].amount);
-    valueOutSat = valueOutSat.add(sat);
+    valueOutSat = valueOutSat.add(amountSat);
   }
 
   this.valueOutSat = valueOutSat;