Res SendStatus

<h3 id='res.sendStatus'>res.sendStatus(statusCode)</h3>

Sets the response HTTP status code to statusCode and sends the registered status message as the text response body. If an unknown status code is specified, the response body will just be the code number.

<div class="doc-box doc-notice" markdown="1"> Some versions of Node.js will throw when `res.statusCode` is set to an invalid HTTP status code (outside of the range `100` to `599`). Consult the HTTP server documentation for the Node.js version being used. </div>

More about HTTP Status Codes