gistfile1.txt

var allCount = items.length;
var handleSave = function(err) {
    if(err) {
      allCount = 0; // this will prevent sending success: true if invoked again...
      res.send({ success: false, msg: err}, 400);
      return;
    }

    allCount -= 1;
    if(allCount == 0) {
       res.send({ success: true });
    }
}
for(var item=0;item<items.length;item++)
{
					var bundleTextItem = new global.BundleTextItem();	
					bundleTextItem.key = items[item].key;
					bundleTextItem.value = "";
					bundleTextItem.language = langForAdding;
					bundleTextItem.bundlename = req.param("bundlename");
					bundleTextItem.save(function(err, bundleTextItem){
						handleSave(err);
					});
}