oauthio-sample

HTML

<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
<script src="https://cdn.rawgit.com/oauth-io/oauth-js/c5af4519/dist/oauth.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-social/4.12.0/bootstrap-social.min.css">
<a id="yahoo2-button" class="btn btn-block btn-social btn-yahoo">
  <i class="fa fa-yahoo"></i> Sign in with Yahoo OAuth2
</a>

JavaScript

$('#yahoo2-button').on('click', function() {
	// Initialize with your OAuth.io app public key
	OAuth.initialize('HwAr2OtSxRgEEnO2-JnYjsuA3tc');
  // Use popup for oauth
  // Alternative is redirect
  OAuth.rediret('yahoo2','').then(yahoo => {
    console.log('yahoo:', yahoo.toJson());
    // Retrieves user data from oauth provider
    yahoo.get('user/me/profile?format=json').then(data => {
      console.log('data:', data);
      console.log('email:', data.profile.emails[0]);
    })
	});
})