Facebook SSO + Feed integration in iPhone app

[Darkie]

Hey, I'm back with some strange, mindtwisting questions.
Sorry if it's the wrong section.
I'm implementing a small social network and I would like people to be able to register using their own data from FB. I implemented the SSO described here: Mobile Apps - Facebook Developers and I call the window that asks for permissions on a button click within my app.
The first question is: where is the user data stored? I have this facebook variable but I couldn't find an API where it's described how to access the information got from the FB login. Moreover, related to this, would it be possible to also have the password from FB shared within my app (same password for FB and my app without user typing it)?

The second question is, I have this code now:

- (IBAction) triggerFB{
    
    NSArray* permissions =  [[NSArray arrayWithObjects:
                              @"email", @"read_stream", nil] retain];
    
    [facebook authorize:permissions delegate:self];
}

- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
    
    return [facebook handleOpenURL:url]; 
}

I don't understand where is the callback or how to call the callback function when the user accepts or rejects the ToS when the window is displayed. I would like to be able to fill out automatically the fields in the registration form if the user clicks on "Agree" (taking the data from the facebook variable), or let them empty if the user doesn't.

Thanks a lot,
Sorry again if it's the wrong section.

[Darkie]

Up... anyone?

[Darkie]

I finally started to understand how does this work.
After letting my app access user's data, I call this method

[facebook requestWithGraphPath:@"me" andDelegate:self];

So that it returns data about the user that I can use.

The problem is that I receive this error:

{contents = "An active access token must be used to query information about the current user."}

Do some of you know what's going on? Why even though the user accepts it still gives this error?

[dany_dev]

you insert correctly your valid token on url?

[Darkie]

Originally Posted by dany_dev

you insert correctly your valid token on url?

Well, it should be automatically handled by the facebook variable...