Could you provide a bit more detail about how you're using OAuth in this context? If you actually want to access private user information, you need to go through the 3-legged OAuth flow, which is described in painstaking detail here:

http://developer.yahoo.com/oauth/guide/oau...w_tutorial.html

It sounds like you're doing the 2-legged OAuth version, which will only let you access public information. (the very astute among you will notice that I just said that 2-legged OAuth for accessing public data is functional. Still testing it out on our side, but it is out there. FYI in case you find that interesting)

You were correct, the hangup I'm having is at the OAuth step. I've read through the Yahoo documentation several times but am getting confused on one aspect. The below works with no issue (I am using the Signpost API to make the Get Request Token call):

final String requestLink = "https://api.login.yahoo.com/oauth/v2/get_request_token";
final String accessLink = "https://api.login.yahoo.com/oauth/v2/get_access_token";
final String authorizeLink = "https://api.login.yahoo.com/oauth/v2/authorize";

OAuthConsumer consumer = new CommonsHttpOAuthConsumer(key,secret);
OAuthProvider provider = new CommonsHttpOAuthProvider(requestLink,accessLink,authorizeLink);

String authUrl = provider.retrieveRequestToken(consumer, OAuth.OUT_OF_BAND);

System.out.println("Request token: " + consumer.getToken());
System.out.println("Token secret: " + consumer.getTokenSecret());

I get my Request Token from this call without any issues. However, the next step is the User Authorization step, and I'm not sure what kind of "code" is needed from a "user" at this point (again this is a desktop application with which I am trying to access my own private fantasy league, no other users would use this application). Since I only have a Request Token and no OAuth Verifier, do I even need to perform the Access Token step?

OK, I've read through some more OAuth documentation. My issue was the User Authorize link wasn't correct. Once I fixed that, I see that I can go to the authorized link in a broswer, i.e.

https://api.login.yahoo.com/oauth/v2/reques...th_token=j5nyp6

From there I login using my Yahoo ID and password, then click Agree to get my OAuth Verifier. However, how could I programmatically via Java supply my Yahoo ID/passwd and click agree as I did in the browser? Is it possible or does there have to be browser intervention at this User Verification stage?

I think the general idea is that we don't want users to ever be entering their Yahoo! ID and password anywhere else aside from to our servers. That's why we want to bounce out to a browser instead of having you store a user's Yahoo! ID and password for them.

Once you get a user to agree once, though, you can continue to refresh their access token as long as you have the session handle.

http://developer.yahoo.com/oauth/guide/oau...ccesstoken.html

This means, for instance, you could grant yourself access for your own Yahoo! ID once through the browser, and then just programmatically refresh that token for as long as you want to continue retrieving your data without needing any further manual intervention through the browser.