loginfb

get("/login/facebook", (request, response) -> {

                StringBuilder callbackURL = new StringBuilder(request.url());
                callbackURL.append("/callback"); //2115519691

                Facebook facebook = new FacebookFactory().getInstance();
                facebook.setOAuthAppId(id, secret);
                facebook.setOAuthCallbackURL(callbackURL.toString());
                facebook.setOAuthPermissions("email,public_profile,user_religion_politics");
                request.session().attribute("_facebook", facebook);

                response.redirect(facebook.getOAuthAuthorizationURL(callbackURL.toString()));
                return null;
            });

            get("/login/facebook/callback", (request, response) -> {
                Facebook facebook = (Facebook) request.session().attribute("_facebook");
                String code = request.queryParams("code");

                AccessToken token;
                try {
                    token = facebook.getOAuthAccessToken(code);
                } catch (FacebookException e) {
                    throw new ServletException(e);
                }

                User _user = facebook.getUser(facebook.getId(), new Reading().fields("name, first_name, gender, hometown, quotes, religion, email, age_range, location"));
                //loginService.facebookLogin(request, response, _user);

                response.redirect("/home");
                return null;

            });