index.js
function getXml(path, finish) {
  fs.readFile(path, function(err, data) {
      if (err) throw err;
      xmlParser.parseString(data, function (err, result) {
        if (err) throw err;
        finish(result);
      });
  });
}
function getXml(path, finish) {
  fs.readFile(path, function(err, data) {
      if (err) throw err;
      xmlParser.parseString(data, function (err, result) {
        if (err) throw err;
        finish(result);
      });
  });
}
Read and Parse XML file from given path, pass result to finish Any error that occurs is simpy thrown.