I have qr codes that have been published with an old url. I need to redirect that old url to a new external url. I have just revamped this project by incorporating Nuxtjs. I have tried using the redirect middleware, but no success. Can somebody help me?

I want my old url, 'example.io/guestbooklet/1' to redirect to 'https://dashboard.example.io/guestbooklet/1'

middleware/redirects.js

export default function(req, res, next) {
    const redirects = [
      {
        from: "/guestbooklet/:property_id", 
        to: "https://dashboard.example.io/guestbooklet/:property_id"
      }
    ]
    const redirect = redirects.find((r) => r.from === req.url)
    console.log('Redirecting', redirect)
    if (redirect) {
      res.writeHead(301, { Location: redirect.to })
      res.end()
    } else {
      next()
    }
  }

nuxt.config.js

serverMiddleware: [
        '~/middleware/redirects.js'
  ],