const fastify = require('fastify')()

fastify.register(require('@fastify/url-data'))

fastify.get('/foo', (req, reply) => {
  const urlData = req.urlData()
  req.log.info(urlData.path) // '/foo'
  req.log.info(urlData.query) // 'a=b&c=d'
  req.log.info(urlData.host) // '127.0.0.1'
  req.log.info(urlData.port) // 8080

  // if you just need single data:
  req.log.info(req.urlData('path')) // '/foo'

  reply.send({hello: 'world'})
})

// GET: 'http://127.0.0.1:8080/foo?a=b&c=d