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JavaScript Express Basics Deeper into Routing with Express Statelessness, Setting and Reading Cookies

nicholas maddren
nicholas maddren
12,793 Points
Posted by nicholas maddren
nicholas maddren
12,793 Points

Cookie isn't being saved

Hi guys, just following Andrews video and got to the part where he is refreshing his page and seeing the cookie saved.

When I refresh the page it just shows me the form again instead of the variable that should be saved in the cookie.

Here is my code:

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

const app = express();

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

app.set('view engine', 'pug');

app.get('/', (req, res) => {
  res.render('index');
});

app.get('/cards', (req, res) => {
  res.render('card', {prompt: 'Who is buried in grants tomb.', hint: "Think about who's tomb it is"});
});

app.get('/hello', (req, res) => {
  res.render('hello', {name: req.cookies.username});
});

app.post('/hello', (req, res) => {
  res.cookie('username', req.body.username);
  res.render('hello', {name: req.body.username});
});

app.listen(2828, () => {
  console.log('The application is running on port 2828');
});

Any idea where I might be going wrong so far? This is really confusing me.

Thanks, Nick

Nick Trabue
Nick Trabue
Courses Plus Student 12,666 Points

It looks like you're overwrite name with req.body.username. Also, it looks like the correct way to call req.cookies is 

req.cookies['username']

app.get('hello', (req, res) => {
     res.render('hello', {name: req.cookies['username']});
});

app.post('/hello', (req, res) => {
     res.cookie('username', req.body.username);
    res.render('hello', {name: req.cookies['username']});
});

see if that works

1 Answer

Steven Ventimiglia
Steven Ventimiglia
27,371 Points
Steven Ventimiglia
Steven Ventimiglia
27,371 Points

Just be sure you're adding it to app.get, as opposed to app.post...

app.get('hello', (req, res) => {
     res.render('hello', {name: req.cookies.username});
});

...using app.post to grab the info posted, and turning it into a cookie via res.cookie.

Example:

app.get('/hello', (req, res) => {
    res.render('hello', {
        name: req.cookies.username
    });
});

app.post('/hello', (req, res) => {
    res.cookie('username', req.body.username);
    res.render('hello', {
        name: req.body.username
    });
});
  • You are rendering req.cookies.username in app.get.
  • You are rendering req.body.username in app.post.