How to redirect to root if the query param is not defined?

Question

I wanna to redirect my website to the home / if the is no query param is defined. I am building a search website with nextjs is which / is the home and /search is the search page. I am passing the query term in the URL as /search?query=myterm. when a user tries to access the /search without the query I wanna to redirect the user the home /. But how can I do that?

Answer 1

Make use of the redirects mechanism: https://nextjs.org/docs/api-reference/next.config.js/redirects

You can read the value of query params like this:

module.exports = {
  async redirects() {
      {
        source: '/specific/:path*',
        has: [
          {
            type: 'query',
            key: 'page',
            value: 'home',
          }
        ],
        permanent: false,
        destination: '/:path*/:page',
      },
  }
}