Exchange Web Services (EWS) Single Sign-On using TokenCredentials?

Question

I'm working with the EWS Java API 1.2 in an Android application. Logging in with username/password WebCredentials is working fine using something like this:

ExchangeService service = new ExchangeService(); ExchangeCredentials credentials = new WebCredentials("domain\\username", "password"); service.setCredentials(credentials); 

Instead of supplying the password every time, I'd like to supply an authentication token. The EWS API contains a TokenCredentials class, but how do I use it? Given a username and password, how do I generate a reusable authentication token? Once I generate such a token, how long is it valid?

Answer 1

You can now use OAuth tokens: http://msdn.microsoft.com/en-us/library/office/dn626019(v=exchg.150).aspx. This topic was just updated a few weeks ago with some basic info.