Node.js and express - how to read a cookie but is undefined

Question

I use the below to set a cookie using express.

res.cookie(\'test\', \'yes\', { 
    expires: new Date(Date.now() + 365*2*24*60*60*1000), 
    httpOnly: true          


        

Answer 1

I solved it by adding app.use(express.cookieParser()); above the app.router.

Answer 2

You need to use express.cookieParser() before app.router; middleware is run in order, meaning it's never even reaching cookieParser() before your route is executed.

Try this:

  app.set('views', __dirname + '/views');
  app.set('view engine', 'jade');
  app.use(express.bodyParser());
  app.use(express.methodOverride());
  app.use(express.cookieParser());
  app.use(app.router);
  app.use(express.static(__dirname + '/public'));

Answer 3

Most middleware (like cookieParser) is no longer bundled with Express and must be installed separately.

Install cookie-parser:

npm install cookie-parser

Usage

var express      = require('express')
var cookieParser = require('cookie-parser')

var app = express()
app.use(cookieParser())

https://github.com/expressjs/cookie-parser