pages/api/save-progress.js

export default function handler(req, res) {
  if (req.method === 'POST') {
    // In a real application, you would save to a database
    const { userId, bookId, progress } = req.body
    console.log('Saving progress:', { userId, bookId, progress })
    res.status(200).json({ success: true })
  } else {
    res.status(405).json({ message: 'Method not allowed' })
  }
}