Question

I am just getting acquainted with Facebook javascript SDK.

What is the proper way to check if a permission request was successful then call a function? In my case the user is being requested additional permissions. They have already given basic permissions.

Right now I have this.. but it fires the function regardless of success or not

FB.login(function (publishAuth) {
                            if (publishAuth.authResponse) {

                                authSuccess();
                            } else { }
                        }, { scope: 'publish_stream' });
                    }

Thanks for the help

Mark

Answer 1

What is the proper way to check if a permission request was successful then call a function?

Since the user can accept/deny each (extended) permission individually, there is no simple true/false response to a permissions request.

To check, which permissions the user has actually granted and which not, you have to make a call to /me/permissions – see Graph API Explorer example.

(With field expansion you can do it also in one call while requesting other infos about the user – f.e. /me?fields=id,name,permissions)