Handle credential responses with JavaScript functions

Objective: If the default login flow doesn't meet your requirements, you can customize it in several ways. Read the following information for available customization options.

Key Point: You can use customized JavaScript code in conjunction with the HTML API.

You can set a JavaScript function in the data-callback attribute to handle the returned credential response. See the following code snippet:

<div id="g_id_onload"
     data-client_id="YOUR_GOOGLE_CLIENT_ID"
     data-callback="handleCredentialResponse">
</div>
<script>
  function handleCredentialResponse(response) {
      ... ...
  }
</script>

Note: You cannot set both the data-login_uri attribute and the data-callback attribute.