@@ -0,0 +1,2190 @@
+// Copyright 2019 Google LLC%0A//%0A// Licensed under the Apache License, Version 2.0 (the %22License%22);%0A// you may not use this file except in compliance with the License.%0A// You may obtain a copy of the License at%0A//%0A//     https://www.apache.org/licenses/LICENSE-2.0%0A//%0A// Unless required by applicable law or agreed to in writing, software%0A// distributed under the License is distributed on an %22AS IS%22 BASIS,%0A// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A// See the License for the specific language governing permissions and%0A// limitations under the License.%0A%0Apackage com.google.sps.servlets;%0A%0Aimport com.google.appengine.api.users.UserService;%0Aimport com.google.appengine.api.users.UserServiceFactory;%0Aimport com.google.gson.JsonObject;%0Aimport com.google.gson.Gson;%0Aimport java.util.ArrayList;%0Aimport java.io.IOException;%0Aimport javax.servlet.annotation.WebServlet;%0Aimport javax.servlet.http.HttpServlet;%0Aimport javax.servlet.http.HttpServletRequest;%0Aimport javax.servlet.http.HttpServletResponse;%0A%0A@WebServlet(%22/userapi%22)%0Apublic class UserApiServlet extends HttpServlet %7B%0A%0A    @Override%0A    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException%7B%0A%0A        JsonObject loginInfo = new JsonObject();%0A        UserService userService = UserServiceFactory.getUserService();%0A%0A        // Store whether user is logged in.%0A        Boolean isLoggedIn = userService.isUserLoggedIn();%0A        String url,%0A            email;%0A%0A        // If user is logged in send logout is index.html, else home.html is login%0A        if(isLoggedIn) %7B%0A            url = userService.createLogoutURL(%22../index.html%22);%0A            email = userService.getCurrentUser().getEmail();%0A        %7D%0A        else %7B%0A            url =userService.createLoginURL(%22../Home/home.html%22);%0A            email = %22%22;%0A        %7D%0A        %0A        // Store info in Json object.%0A        loginInfo.addProperty(%22Url%22, url);%0A        loginInfo.addProperty(%22Bool%22, isLoggedIn);%0A        loginInfo.addProperty(%22Email%22, email);%0A%0A        // Send info back as response.%0A        response.setContentType(%22application/json;%22);%0A        response.getWriter().println(loginInfo.toString());%0A    %7D%0A%7D

Add servlet for retrieving userdata when loggging in