universal-cookie

What is universal-cookie?

The universal-cookie npm package is a JavaScript library for managing cookies in both browser and Node.js environments. It provides a simple and universal API to handle cookies, making it easier to work with cookies across server-side and client-side without changing the codebase.

What are universal-cookie's main functionalities?

Get a cookie

This feature allows you to retrieve the value of a cookie by its name. It's useful for accessing user preferences or session data stored in cookies.

const cookies = new UniversalCookie();
const myCookie = cookies.get('myCookieName');

Set a cookie

This feature enables you to create a new cookie or update an existing one with a value, path, and maximum age. It's commonly used for storing user preferences or session tokens.

const cookies = new UniversalCookie();
cookies.set('myCookieName', 'myCookieValue', { path: '/', maxAge: 3600 });

Remove a cookie

This feature allows you to delete a cookie from the browser. It's useful for logging out users or clearing session data.

const cookies = new UniversalCookie();
cookies.remove('myCookieName', { path: '/' });

Other packages similar to universal-cookie

js-cookie

js-cookie is a simple, lightweight JavaScript API for handling cookies. It provides a straightforward way to create, read, and delete cookies on the client-side. Compared to universal-cookie, js-cookie is specifically designed for browser environments and does not support server-side rendering.

cookie

cookie is a Node.js module for parsing and serializing cookies. It's designed for server-side use, allowing for easy manipulation of HTTP cookies in Node.js applications. Unlike universal-cookie, cookie does not provide a unified API for both client and server environments.

cookies

cookies is a Node.js and browser module that provides a higher-level API for managing cookies in both environments. It offers features similar to universal-cookie but with additional options for security, such as automatic signing of cookies. It's a good alternative for applications requiring enhanced security measures.

README

universal-cookie

Universal cookies for JavaScript

Integrations

• react-cookie - Universal cookies for React
• universal-cookie-express - Hook cookies get/set on Express for server-rendering

Getting started

npm install universal-cookie

or in the browser (global variable UniversalCookie):

<script crossorigin src="https://unpkg.com/universal-cookie@3/umd/universalCookie.min.js"></script>

API - Cookies class

constructor([cookieHeader])

Create a cookies context

• cookieHeader (string|object): specify the cookie header or object

get(name, [options])

Get a cookie value

• name (string): cookie name
• options (object):
  • doNotParse (boolean): do not convert the cookie into an object no matter what

getAll([options])

Get all cookies

• options (object):
  • doNotParse (boolean): do not convert the cookie into an object no matter what

set(name, value, [options])

Set a cookie value

• name (string): cookie name
• value (string|object): save the value and stringify the object if needed
• options (object): Support all the cookie options from RFC 6265
  • path (string): cookie path, use / as the path if you want your cookie to be accessible on all pages
  • expires (Date): absolute expiration date for the cookie
  • maxAge (number): relative max age of the cookie from when the client receives it in second
  • domain (string): domain for the cookie (sub.domain.com or .allsubdomains.com)
  • secure (boolean): Is only accessible through HTTPS?
  • httpOnly (boolean): Is only the server can access the cookie?
  • sameSite (boolean|lax|strict): Strict or Lax enforcement

remove(name, [options])

Remove a cookie

• name (string): cookie name
• options (object): Support all the cookie options from RFC 6265
  • path (string): cookie path, use / as the path if you want your cookie to be accessible on all pages
  • expires (Date): absolute expiration date for the cookie
  • maxAge (number): relative max age of the cookie from when the client receives it in second
  • domain (string): domain for the cookie (sub.domain.com or .allsubdomains.com)
  • secure (boolean): Is only accessible through HTTPS?
  • httpOnly (boolean): Is only the server can access the cookie?
  • sameSite (boolean|lax|strict): Strict or Lax enforcement

addChangeListener(callback)

Add a listener to when a cookie is set or removed.

• callback (function): Call that will be called with the first argument containing name, value and options of the changed cookie.

removeChangeListener(callback)

Remove a listener from the change callback.

Browser Example

import Cookies from 'universal-cookie';

const cookies = new Cookies();

cookies.set('myCat', 'Pacman', { path: '/' });
console.log(cookies.get('myCat')); // Pacman

Server Example

import Cookies from 'universal-cookie';

const cookies = new Cookies(req.headers.cookie);

console.log(cookies.get('myCat')); // Pacman or undefined if not set yet