title: Get Blogger post after button click
body: <p>I'm using the Blogger API, it's my first time using an API and REST, and I got stuck here... </p>
  
  <p>Instead of doing it this way (from Blogger API's docs):</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div id="content"&gt;&lt;/div&gt;
  &lt;script&gt;
    function handleResponse(response) {
      document.getElementById("content").innerHTML += "&lt;h1&gt;" + response.title + "&lt;/h1&gt;" + response.content;
    }
  &lt;/script&gt;
  &lt;script src="https://www.googleapis.com/blogger/v3/blogs/3213900/posts/8398240586497962757?callback=handleResponse&amp;key=YOUR-API-KEY"&gt;&lt;/script&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>... I want to make the call after a button click (since the page will load more elements and blogger's post is optional).</p>
  
  <p>In other words, I want to get the response and be able to work with it after the user clicks the button, instead of getting it when that script loads.</p>