Redirect short URL to full web address
Adding a redirect is very easy to do with ring, as the ring library provides a function called redirect that takes a url as an argument
Include the ring.util.response/redirect function into the shorturl-service.handler namespace so that we can simply call the redirect function
(ns shorturl-service.handler
(:require [compojure.core :refer :all]
[compojure.route :as route]
[ring.middleware.defaults :refer [wrap-defaults site-defaults]]
[ring.handler.dump :refer [handle-dump]]
[ring.util.response :refer [redirect]]))