A library for making OAuth with Google Glass's GDK easier!
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A library for making OAuth with Google easier!


GlassAuth is an easy to use library designed to make authentication with a Google Account easier. Have you seen applications using QR codes to send OAuth tokens to Glass? That's not quite a good idea. GlassAuth makes use of Google's OAuth for Devices. All the user has to do is enter a code here.

GlassAuth takes care of making a slick sign in process (with UI and all), and makes authorized HTTPS requests in just a few lines.


It is expected that you have a project setup at the Google Developer Console, with the Google+ API enabled and OAuth certificates generated.

How to Use

  1. Clone the source of this application and include it as a library in your Glass project.
  2. In the GlassAuth library, go to src/com/victor/kaiser/pendergrast/auth/setup/AuthConstants.java and set the CLIENT_ID and CLIENT_SECRET according to what you generated at the Google Developer Console.
  3. Use manifest merger, or declare the AuthActivity in your manifest like so: <activity android:name="com.victork.kaiser.pendergrast.auth.AuthActivity" />
  4. In your UI, have the user sign in by starting an AuthActivity
  5. Later, you can confirm the user is signed in by calling AuthHelper.isAuthenticated()
  6. Use AuthHttpsRequest to make authenticated requests. You can add JSON parameters and change the HTTP request method to whatever you need. The OnResponseListener you specify will be called when a response is received. AuthHttpsTask request = new AuthHttpsTask(context, url, json, "POST", listener); request.execute();


Tap to Continue Screen

Enter Code Screen

Finished Screen


The onResponse(boolean success, String response) method in OnResponseListener may not behave as you expect. success only indicates if the HTTPS request returned 200 "good" code. Response is simply the response from the server.

For some more background on this method, see my GlassNotes repo, or this presentation.