title: How to get URL in http.Request
body: <p>I built an HTTP server. I am using the code below to get the request URL, but it does not get full URL.   </p>
  
  <pre><code>func Handler(w http.ResponseWriter, r *http.Request) {  
      fmt.Printf("Req: %s %s", r.URL.Host, r.URL.Path)
  }
  </code></pre>
  
  <p>I only get <code>"Req:  / "</code> and <code>"Req: /favicon.ico"</code>.</p>
  
  <p>I want to get full client request URL as <code>"1.2.3.4/"</code> or <code>"1.2.3.4/favicon.ico"</code>.</p>
  
  <p>Thanks.</p>