title: How to limited JSON API WordPress plugin
body: <p>I want use WordPress to create a website, and I want export the site posts with <code>JSON API</code>.</p>
  
  <p>I want to limit displayed posts by category but when click this link: <code>get_category_posts</code> (JSON API plugin in wordpress setting), I get this error:</p>
  
  <blockquote>
    <p>{"status":"error","error":"Include 'id' or 'slug' var in your request."}</p>
  </blockquote>
  
  <p><code>get_category_posts</code> link : <a href="http://tellfa.com/tafrihgah/?json=get_category_posts" rel="nofollow">link</a>.</p>
  
  <p>How can I limit posts by category in JSON API WordPress plugin?</p>