Question

The current Facebook API v3.0.2.b will return a com.facebook.Response object that holds the response. Do you know how to parse this? The following code will raise an Exception 🙁

//execute the request
Request request = new Request
(
    session,
    "/fql",
    params,
    HttpMethod.GET,
    new Request.Callback()
    {
        @Override
        public void onCompleted( Response response )
        {
            try
            {
                JSONArray json = new JSONArray( response.toString() );
            }
            catch ( Throwable t )
            {
                System.err.println( t );
            }
        }
    }
);
Request.executeBatchAsync( request );

The error message says:

org.json.JSONException: Unterminated object at character 25 of {Response:  responseCode: 200, graphObject: GraphObject{graphObjectClass=GraphObject, state={"data":[{"pic_square":.....

Does anybody know what’s the correct solution? Shall I use

GraphObject go = response.getGraphObject();

.. how can I get GraphUser-Objects with that?

Sorry, this seems like a trivial issue but processing the Response-object is poorly documented in the facebook docs and I wasn’t able to receive anything about this on the web 🙁

Thank you very much in advance!

Greetings Christopher

Answer 1

this is the solution that worked for me –
I had to investigate the response and play around a bit with some methods but finally solved it 🙂

/************************************************************************
*   Parses the user data from the facebook FQL
*
*   "SELECT uid, name, pic_square FROM user WHERE uid IN ( SELECT uid2 FROM friend WHERE uid1 = me() )"
*
*   This is the example query from
*   {@link http://developers.facebook.com/docs/howtos/androidsdk/3.0/run-fql-queries/}
*
*   @param  response    The facebook response from the FQL
************************************************************************/
public static final void parseUserFromFQLResponse( Response response )
{
    try
    {
        GraphObject go  = response.getGraphObject();
        JSONObject  jso = go.getInnerJSONObject();
        JSONArray   arr = jso.getJSONArray( "data" );

        for ( int i = 0; i < ( arr.length() ); i++ )
        {
            JSONObject json_obj = arr.getJSONObject( i );

            String id     = json_obj.getString( "uid"           );
            String name   = json_obj.getString( "name"          );
            String urlImg = json_obj.getString( "pic_square"    );

            //...

        }
    }
    catch ( Throwable t )
    {
        t.printStackTrace();
    }
}

Hope this helps anybody someday.

Greetings

Christopher

UPDATE

GraphObject is no longer a class, so just:

JSONObject  jso = response.getJSONObject();
JSONArray   arr = jso.getJSONArray("data");