This is a simple API CRUD route for use with Next.js, using switch case statements to handle the different HTTP methods.

export default async function handler(req, res) {
  switch (req.method) {
    case 'PUT':
      res.status(201).json({});  
      break;
    case 'DELETE':
      res.status(204).json({});
      break;
    case 'POST':
      res.status(200).json({});
      break;
    case 'GET':
    default:
      res.status(200).json({});
      break;
  }
}