title: Elastic search query add 30 days in the value of attributes
body: <p>I have the structure as below. I need to write the query to add 30 days from the &quot;expiryDate&quot; then check less than today date.</p>
  <pre><code>{
    _id: &quot;100000001&quot;,
    name: &quot;John&quot;,
    expiryDate: &quot;30/07/2020&quot;
  }
  </code></pre>
  <p>Here, I need to check expirtyDate + 30 days &lt; today date</p>
  <p>Anyone help me to do the query.</p>