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Java Intro to Java Web Development with Spark Bells and Whistles Redirecting

Charles Harpke
Charles Harpke
33,986 Points
Posted by Charles Harpke
Charles Harpke
33,986 Points

Redirect to homepage...

I assume the new HandlebarsTemplateEngine is to no longer be used.... and we are to redirect to '/'.....how can I view my syntax errors? There is no 'Preview' button or tab....

com/teamtreehouse/courses/Main.java 
package com.teamtreehouse.courses;

import com.teamtreehouse.courses.model.CourseIdea;
import com.teamtreehouse.courses.model.CourseIdeaDAO;
import com.teamtreehouse.courses.model.SimpleCourseIdeaDAO;
import spark.ModelAndView;

import java.util.HashMap;
import java.util.Map;

import static spark.Spark.*;

public class Main {
    public static void main(String[] args) {
        staticFileLocation("/public");
        CourseIdeaDAO dao = new SimpleCourseIdeaDAO();

        get("/", (req, res) -> {
            Map<String, String> model = new HashMap<>();
            model.put("username", req.cookie("username"));
            return new ModelAndView(model, "index.hbs");
        };

        post("/sign-in", (req, res) -> {
            Map<String, String> model = new HashMap<>();
            String username = req.queryParams("username");
            res.cookie("username", username);
            model.put("username", username);
            return new ModelAndView(model, "sign-in.hbs")
        };


        get("/ideas", (req, res) -> {
            Map<String, Object> model = new HashMap<>();
            model.put("ideas", dao.findAll());
            return new ModelAndView(model, "ideas.hbs");
        };

        post("/ideas", (req, res) -> {
            String title = req.queryParams("title");
            // TODO:csd - This username is tied to the cookie implementation
            CourseIdea courseIdea = new CourseIdea(title,
                    req.cookie("username"));
            dao.add(courseIdea);
            res.redirect("/");
            return null;

        });
    }
}

2 Answers

Kourosh Raeen
Kourosh Raeen
23,733 Points
Kourosh Raeen
Kourosh Raeen
23,733 Points

It looks pretty much like the other redirect that you have in your code. No need for HandlebarsTemplateEngine or returning a new ModelAndView:

post("/sign-in", (req, res) -> {
            Map<String, String> model = new HashMap<>();
            String username = req.queryParams("username");
            res.cookie("username", username);
            res.redirect("/");
            return null;
        });