A more complicated Next API route handler

complexRoute.ts

export default function handler(req, res) {
  if (req.method === 'POST') {
    checkAuth();
    doSomething();
    res.status(200).json({ name: 'John Doe' })
  } else if (req.method === 'DELETE') {
    checkAuth();
    doSomethingElse();
    res.status(200).json({ status: 'Deleted' })
  } else if (req.method === 'GET') { // no auth
    const items = doAThirdThing();
    res.status(200).json({ data: items })
  } else {
    res.status(405).text('Method Not Allowed')
  }
}