node-server

const http = require('http')
const url = require('url')
const port = 8000

const requestHandler = (request, response) => {
  const parsedUrl = url.parse(request.url, true)
  if (parsedUrl.query.name && parsedUrl.query.city) {
    response.end(`Hello ${parsedUrl.query.name} from ${parsedUrl.query.city}`)
  } else {
    response.end('Please provide name and city parameters')
  }
}

const server = http.createServer(requestHandler)

server.listen(port, (err) => {
  if (err) {
    console.error('Something bad happened')
  } else {
    console.log(`server is listening on ${port}`)
  }
})