title: How to post nested JSON in React-Native?
body: <p>In react-native am using the fetch post method 
  I want to send nested <code>JSON</code> in </p>
  
  <pre><code>method: 'POST',
  headers: {
     'Accept': 'application/json',
     'Content-Type': 'application/json',
      },
  body: JSON.stringify({
  </code></pre>
  
  <p>// send below JSON to the backend  </p>
  
  <pre><code>{
    "filterCriteria": {
      "catalogId": 0,
      "filterEnabled": "false"
    }
  }
  </code></pre>