Cookies & Sessions in the web

Dec 7, 2021 · Berlin, Germany

Welcome to the second installment of our advent workshop series!

Did you ever wonder what happens when you log into your most favorite website and how it still knows who you are after returning to the site next time?

In this course you will learn the basic ideas behind cookies and sessions. Together with the presenters, you will:
- Create your own tiny social network
- Make use of cookies as a temporary data storage
- Establish a persistent connection between your browser and the website to recognize the users over time


To properly follow along, we assume a basic understanding of JavaScript. Additionally, we'll make use of Node.JS ( and optionally yarn (

Code of Conduct

All participants of our event are required to agree with the following code of conduct. Organizers will enforce this code throughout the event. We are expecting cooperation from all participants to help ensure a safe environment for everybody.

We are dedicated to providing a harassment-free competition experience for everyone, regardless of gender, sexual orientation, disability, physical appearance, body size, race, or religion. We do not tolerate harassment of competition participants in any form. Competition participants violating these rules may be sanctioned or expelled from the competition at the discretion of the competition organizers. TL;DR: Be excellent to each other. For more details see Berlin Code of Conduct (

Event organizers
  • eBay Europe Technology #ebaytechtalk

    Product & development meetups coordinated across eBay’s European offices in London and Berlin. We want to support tech innovation in our communities. We also want great people to join our teams and get to know us at these events. Twitter • #ebaytechtalk • @ebaytecheurope • @ebaytechberlin • @ebaytechlondon Jobs • • Software Development in Berlin • Softwa...

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