erickoledadevrel/AppsMarketplaceSignIn.html

## AppsMarketplaceSignIn.html
<html>
<head>
  <title>GAM Sample App</title>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/URI.js/1.17.1/URI.js"></script>
  <script src="https://apis.google.com/js/platform.js?onload=init" async defer></script>
</head>
<body>
  <h1>GAM Sample App</h1>
  <p id="message">Loading...</p>

  <script type="text/javascript">
    // A "Web application" client ID from the same Google Developers Console
    // project that contains your Google Apps Marketplace configuration.
    var CLIENT_ID = '...';

    /**
     * Initializes the Google Sign-in library. Automatically called when the
     * JavaScript library is done loading.
     */
    function init() {
      // Read the user's domain from the URL. This requires that you add
      // "?domain=${DOMAIN_NAME}" to your Universal Navigation Extension URL
      // in the Google Apps Marketplace configuration.
      var url = URI(location.href);
      var params = url.search(true);
      var domain = params['domain'];

      // Load the auth library.
      gapi.load('auth2', function() {
        // Initialize the auth library.
        var auth = gapi.auth2.init({
          client_id: CLIENT_ID,
          // Specify the domain of the user, in case they are logged into
          // multiple Google accounts.
          hosted_domain: params['domain'],
          // Basic profile information is required for the library to validate
          // the domain of the user. This requires that the scope
          // "https://www.googleapis.com/auth/plus.me" is added to your
          // Google Apps Marketplace configuration, even if you don't need
          // in your application.
          fetch_basic_profile: true
        });

        // Add the listener for changes to signed-in status.
        auth.isSignedIn.listen(onSignedInChange);

        // Once the auth library has fully initialized, sign-in the user if they
        // aren't already.
        auth.then(function() {
          var auth = gapi.auth2.getAuthInstance();
          var user = auth.currentUser.get();
          if (!user.isSignedIn()) {
            auth.signIn().then(null, function(error) {
              // Something went wrong during sign-in.
              alert('Unable to sign-in: ' + error);
            });
          }
        });
      });
    }

    /**
     * Callback for whenever the signed-in status of the user changes.
     */
    function onSignedInChange(isSignedIn) {
      var auth = gapi.auth2.getAuthInstance();
      var message;
      if (isSignedIn) {
        var user = auth.currentUser.get();
        var profile = user.getBasicProfile();
        document.querySelector('#message').innerText =
            'Welcome ' + profile.getName();

        // To sign-in the user to your backend, retrieve the ID token, send it
        // to your server, have the server verify it (https://goo.gl/WB5SLP),
        // and use the subject field ("sub") as the user's unique, stable ID in
        // your system.
        var idToken = user.getAuthResponse().id_token;
        // TODO: sendToServer(idToken);
      }
    }
  </script>
</body>
</html>
	<html>
	<head>
	<title>GAM Sample App</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/URI.js/1.17.1/URI.js"></script>
	<script src="https://apis.google.com/js/platform.js?onload=init" async defer></script>
	</head>
	<body>
	<h1>GAM Sample App</h1>
	<p id="message">Loading...</p>

	<script type="text/javascript">
	// A "Web application" client ID from the same Google Developers Console
	// project that contains your Google Apps Marketplace configuration.
	var CLIENT_ID = '...';

	/**
	* Initializes the Google Sign-in library. Automatically called when the
	* JavaScript library is done loading.
	*/
	function init() {
	// Read the user's domain from the URL. This requires that you add
	// "?domain=${DOMAIN_NAME}" to your Universal Navigation Extension URL
	// in the Google Apps Marketplace configuration.
	var url = URI(location.href);
	var params = url.search(true);
	var domain = params['domain'];

	// Load the auth library.
	gapi.load('auth2', function() {
	// Initialize the auth library.
	var auth = gapi.auth2.init({
	client_id: CLIENT_ID,
	// Specify the domain of the user, in case they are logged into
	// multiple Google accounts.
	hosted_domain: params['domain'],
	// Basic profile information is required for the library to validate
	// the domain of the user. This requires that the scope
	// "https://www.googleapis.com/auth/plus.me" is added to your
	// Google Apps Marketplace configuration, even if you don't need
	// in your application.
	fetch_basic_profile: true
	});

	// Add the listener for changes to signed-in status.
	auth.isSignedIn.listen(onSignedInChange);

	// Once the auth library has fully initialized, sign-in the user if they
	// aren't already.
	auth.then(function() {
	var auth = gapi.auth2.getAuthInstance();
	var user = auth.currentUser.get();
	if (!user.isSignedIn()) {
	auth.signIn().then(null, function(error) {
	// Something went wrong during sign-in.
	alert('Unable to sign-in: ' + error);
	});
	}
	});
	});
	}

	/**
	* Callback for whenever the signed-in status of the user changes.
	*/
	function onSignedInChange(isSignedIn) {
	var auth = gapi.auth2.getAuthInstance();
	var message;
	if (isSignedIn) {
	var user = auth.currentUser.get();
	var profile = user.getBasicProfile();
	document.querySelector('#message').innerText =
	'Welcome ' + profile.getName();

	// To sign-in the user to your backend, retrieve the ID token, send it
	// to your server, have the server verify it (https://goo.gl/WB5SLP),
	// and use the subject field ("sub") as the user's unique, stable ID in
	// your system.
	var idToken = user.getAuthResponse().id_token;
	// TODO: sendToServer(idToken);
	}
	}
	</script>
	</body>
	</html>