Question

I am working on a Facebook application and am currently trying to have my app tag one of the user’s friends. I almost have it working 100%, except when it is supposed to be tagging the person, I instead get an error message that follows:

{“error”:{“message”:”Unsupported post request.”,”type”:”GraphMethodException”,”code”:100}}

The user and photo IDs are for sure correct, that is not the issue. Otherwise, I’m not sure what else could be causing this error. Code is below for reference. Thanks much!

public void setTag() {
    String relativePath = Constants.photoID + "/tags/" + Constants.userID;
    Bundle params = new Bundle();
    params.putString("x", "5");
    params.putString("y", "5");
    Constants.mAsyncRunner.request(relativePath, params, "POST", new TagPhotoRequestListener(),
            null);
}



public class TagPhotoRequestListener extends BaseRequestListener {

@Override
public void onComplete(final String response, final Object state) {
    if (response.equals("true")) 
    {
        String message = "User tagged in photo at (5, 5)" + "\n";
        message += "Api Response: " + response;
        Log.i("TagPhotoRequestListener", message);
    } 
    else 
    {
        Log.w("TagPhotoRequestListener", "User could not be tagged.");
    }
}

public void onFacebookError(FacebookError e) {
    Log.w("TagPhotoRequestListener", "Facebook Error: " + e.getMessage());
}

}

EDIT: Here is my code for posting of a picture and getting the photoID. For testing purposes it’s just a single photo from my sdcard.

public void postPhoto() {
    byte[] data = null;

    Bitmap bi = BitmapFactory.decodeFile("/mnt/sdcard/Download/KathleenSchedule.jpg");
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bi.compress(Bitmap.CompressFormat.JPEG, 100, baos);
    data = baos.toByteArray();

    Bundle params = new Bundle();
    params.putString(Facebook.TOKEN, Constants.mFacebook.getAccessToken());
    params.putString("method", "photos.upload");
    params.putByteArray("picture", data);

    AsyncFacebookRunner mAsyncRunner = new AsyncFacebookRunner(Constants.mFacebook);
    mAsyncRunner.request(null, params, "POST", new PhotoUploadListener(), null);
}


public class PhotoUploadListener extends BaseRequestListener {

@Override
public void onComplete(final String response, final Object state) {
    try {
        // process the response here: (executed in background thread)
        Log.d("PhotoUploadListener", "Response: " + response.toString());
        JSONObject json = Util.parseJson(response);
        System.out.println(response);
        final String photo_id = json.getString("pid");
        Constants.photoID = photo_id;

Answer 1

Ok, now your problem is clear.

You are using the photos.upload method which is deprecated:

We are in the process of deprecating the REST API, so if you are
building a new application you shouldn’t use this function. Instead
use the Graph API and POST to the photos connection of the User object

Because you are using an old method, you’re getting and old response type.
Switch to using the graph api way, and you should get the photo id in the response.