function convert()

in src/currencyservice/server.js [135:166]

• 27 lines of code
• 2 McCabe index (conditional complexity)

function convert (call, callback) {
  try {
    _getCurrencyData((data) => {
      const request = call.request;

      // Convert: from_currency --> EUR
      const from = request.from;
      const euros = _carry({
        units: from.units / data[from.currency_code],
        nanos: from.nanos / data[from.currency_code]
      });

      euros.nanos = Math.round(euros.nanos);

      // Convert: EUR --> to_currency
      const result = _carry({
        units: euros.units * data[request.to_code],
        nanos: euros.nanos * data[request.to_code]
      });

      result.units = Math.floor(result.units);
      result.nanos = Math.floor(result.nanos);
      result.currency_code = request.to_code;

      logger.info(`conversion request successful`);
      callback(null, result);
    });
  } catch (err) {
    logger.error(`conversion request failed: ${err}`);
    callback(err.message);
  }
}