export const handler = async (req, res, next) => {
  try {
    const { num1, num2 } = req.body;
    console.log(req);
    // Validate the input
    if (typeof num1 !== 'number' || typeof num2 !== 'number') {
      return res.status(400).json({ error: 'Both num1 and num2 must be numbers.' });
    }
    const sum = num1 + num2;
    console.log(sum);
    // Send the result as a string since res.end expects a string or buffer
    res.end(sum.toString());
  } catch (error) {
    // Handle errors
    console.error('Error occurred:', error.message);
    // Send an error response if needed
    res.status(500).setHeader('Content-Type', 'text/plain').end('Internal Server Error');
  }
};