Facebook Graph Api OAuthException，但访问令牌有效

Question

I have a problem and I dont know why, I hope you could help me!

I am developing an android app which uses the facebook graph api. It uses the readpermission "user_likes". When i do this request: "me/likes" everything works fine. But when i do this: me/likes?fields=events{cover},name

I get an OAuthException . errorMessage: An active access token must be used to query information about the current user

In conclusion:

1. I get a valid access token with all required permissions.
2. I am the administrator of my app so facebook privacy policy should not play any role!
3. Request

me/likes

works, but

me/likes?fields=events

does not work!

Response I get:

{Response: responseCode: 400, graphObject: null, error: {HttpStatus: 400, errorCode: 2500, errorType: OAuthException, errorMessage: An active access token must be used to query information about the current user.}, isFromCache:false}

So I debuged my Access-Token:

Issued: 1420803216 (4 hours ago)

Expires: 1425987216 (in about 2 months)

Valid: True

Origin: Mobile Web Faceweb

Scopes: public_profile, basic_info, email, user_birthday, user_location, user_likes, user_friends

---

I do not realy understand why my access token has so many scopes? I just set "user_likes"!

loginBtn.setReadPermissions(Arrays.asList("user_likes"));

This is my Code:

 private LoginButton loginBtn;
    private TextView username;
    private UiLifecycleHelper uiHelper;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        uiHelper = new UiLifecycleHelper(this, statusCallback);
        uiHelper.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        username = (TextView) findViewById(R.id.username);
        loginBtn = (LoginButton) findViewById(R.id.fb_login_button);
        loginBtn.setReadPermissions(Arrays.asList("user_likes"));
        loginBtn.setUserInfoChangedCallback(new UserInfoChangedCallback() {
            public void onUserInfoFetched(GraphUser user) {
                if (user != null) {
                    username.setText("You are currently logged in as "
                            + user.getName());
                } else {
                    username.setText("You are not logged in.");
                }
            }
        });
    }

    private Session.StatusCallback statusCallback = new Session.StatusCallback() {
        public void call(Session session, SessionState state,
                Exception exception) {
            if (state.isOpened()) {
                Log.d("MainActivity", "Facebook session opened.");
            } else if (state.isClosed()) {
                Log.d("MainActivity", "Facebook session closed.");
            }
        }
    };

    @Override
    public void onResume() {
        super.onResume();
        Session session = Session.getActiveSession();
        if (session != null && (session.isOpened() || session.isClosed())) {
            onSessionStateChange(session, session.getState(), null);
        }
        uiHelper.onResume();
    }

    private void onSessionStateChange(final Session session,
            SessionState state, Exception exception) {

        if (state.isOpened()) {
            // userInfoTextView.setVisibility(View.VISIBLE);
            String token = session.getAccessToken();
            Log.d("SESSION_TOKEN", token);
            new Request(session, "me/likes?fields=events", null, HttpMethod.GET,
                    new Request.Callback() {
                        public void onCompleted(Response response) {
                            Log.i("INFO", response.toString());
                            // new
                            // GetResponses(userInfoTextView).execute(response);
                        }
                    }).executeAsync();

        } else if (state.isClosed()) {
            // userInfoTextView.setVisibility(View.INVISIBLE);
        }
    }

What are I am doing wrong? I guess something with my session or permission request is wrong...i hope someone can help me!

kind regards christoph

Answer 1

That's because, in Facebook SDK for Android, you must pass extra parameters as a Bundle .

So, for your case, you should invoke the Graph object this way:

Bundle bundle = new Bundle();
bundle.putString("fields", "events");

new GraphRequest(AccessToken.getCurrentAccessToken(), "me/likes", bundle, HttpMethod.GET, new GraphRequest.Callback() {
    public void onCompleted(GraphResponse response) {
        // Your stuff here
    }
}).executeAsync();

Answer 2

The API call seems to be correct and it works in the API Explorer. The only logical explanation for the error is that the Access Token is not valid.

Put the Token in the Debugger and see if it is valid and if user_likes is available: https://developers.facebook.com/tools/debug/