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Keep session data between windows





NPM version build status Maintainability Test Coverage

How many sessions does it takes for an user to create an account? Or purchase something?
Now you can track these metrics!

What is a session anyway?
This is how a web session is defined by Google Analytics:

a period of time (30 minutes by default) that is extended automatically upon user interaction.

How does it ends?

  • after 30 minutes of inactivity.
  • at midnight (based on your GA settings, not client timezone).
  • campaing query change (utm or gclid)


npm install --save react-web-session

And require it in your component

import WebSession from 'react-web-session';

const App = () => (


callback {function}: A function to receive the session data.

data {object}: A custom object to be saved with in the session data.

duration {number}: The duration of the session in minutes. Defaults to 30

history {object}: An instance of createBrowserHistory from history. Usually the same instance you passed to your router. Defaults to a new instance of history/createBrowserHistory

name {string}: The name of the session in localStorage. Defaults to WebSessionData

timezone {number}: The timezone used in GA. Defaults to UTC

Edit react-web-session demo

Stored data

  origin: {
    createdAt: '2000-01-01T00:15:00.000Z',
    href: '/',
    referrer: ''
  current: {
    campaign: {},
    expiresAt: '2000-01-01T00:15:00.000Z',
    href: '/',
    referrer: ''
  history: [
      createdAt: '2000-01-01T00:15:00.000Z',
      href: '/cpc?utm_source=cpc',
      referrer: ''
  visits: 1


Counting web sessions with JavaScript by @Swizec
How a web session is defined in Analytics