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JavaScript Express Basics Parameters, Query Strings, and Modularizing Routes Modular Routes

Posted by Henrique Hemerly
Henrique Hemerly
8,587 Points

After adding the json data the question and hint are not loading in /cards

I get no errors, but the cards page will not show the question and the hint for cards[0]. cards.js

const express = require("express");
const router = express.Router();
const {data} = require("../data/flashcardData");
const {cards} = data;

router.get("/", (req, res) => {  
  res.render("card", {    
    prompt: cards[0].question,
    hint: cards[0].hint
  });
});

module.exports = router;

card.pug

extends layout.pug

block content
  section#content
    h2= prompt
    if hint
      p
        i Hint: #{hint}

index.js

const express = require("express");
const router = express.Router();

router.get("/", (req, res) => {
  const name = req.cookies.username;
  if (name) {
    res.render("index", {name: name});    
  } else {
    res.redirect("/hello");
  }
});

router.post("/goodbye", (req, res) => {
  res.clearCookie("username");
  res.redirect("/hello");
})

router.get("/cards", (req, res) => {
  res.render("card");
});

router.get("/hello", (req, res) => {
  const name = req.cookies.username;
  if (name) {
    res.redirect("/");
  } else {
    res.render("hello");
  }
});

router.post("/hello", (req, res) => {
  res.cookie("username", req.body.username);
  res.redirect("/",);
});

module.exports = router;

app.js

const express = require("express");
const bodyParser = require("body-parser");
const cookieParser = require("cookie-parser");

const app = express() // returns express app

app.use(bodyParser.urlencoded({extended: false}));
app.use(cookieParser());

app.set("view engine", "pug"); // enable pug

const mainRoutes = require("./routes");
const cardRoutes = require("./routes/cards");

app.use(mainRoutes);
app.use("/cards", cardRoutes);

app.use((req, res, next) => {
  console.log("one!");
  next();
});

app.use((req, res, next) => {
  console.log("two!");
  next();
});

app.use((req, res, next) => {
  const err = new Error("Not found");
  err.status = 404;
  next(err);
});

app.use((err, req, res, next) => {
  res.locals.error = err;
  res.status(err.status);
  res.render("error");
});

app.listen(3000, () => {
  console.log("The application is running on localhost:3000");
})// setup server