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node.jsexpresscookies

How to get cookie value in expressjs

I'm using cookie-parser, all the tutorial talk about how to set cookie and the time it expiries but no where teach us how to get the value of these cookie

Solution

  • First note that Cookies are sent to client with a server request and STORED ON THE CLIENT SIDE. Every time the user loads the website back, this cookie is sent with the request.

    So you can access the cookie in client side (Eg. in your client side Java script) by using

    document.cookie

    you can test this in the client side by opening the console of the browser (F12) and type

    console.log(document.cookie);

    you can access the cookie from the server (in your case, expressjs) side by using

    req.cookies

    Best practice is to check in the client side whether it stored correctly. Keep in mind that not all the browsers are allowing to store cookies without user permission.

    As per your comment, your code should be something like

    var express = require('express');
var app = express();

var username ='username';

app.get('/', function(req, res){
   res.cookie('user', username, {maxAge: 10800}).send('cookie set');
});

app.listen(3000);