asdad

export async function registerFacebook( data: RegisterFacebookData ): Promise<User> {

    try {

        const response: FB.FBMeResult = await FB.me( data.fbAccessToken );

        if ( !response || !response.id ) {
            throw new Error( 'Invalid FB response' );
        }

        const existingUser: User = await Users.findByFbId( response.id );
        if ( existingUser ) {
            throw new Error( 'User already exists.' );
        }

        const user = new User();
        user.createdAt = Moment();
        user.name = data.name;
        user.type = 'facebook';
        user.age = data.age;
        user.sex = data.sex;
        user.preference = data.preference;
        user.fbId = response.id;
        user.fbToken = data.fbAccessToken;
        await user.save();

        return user;

    } catch ( err ) {
        return null;
    }

}