Cookie Consent Banner

npm version
GitHub license

? See the component in action on the websites of the following projects: Cyklær, SOUNCE and VIN-Art. ?

Sometimes it’s not possible to avoid cookies for which we need consent of the visitors of our web applications.
For that, some kind of component might help which provides a sleek, but customizable UI with an easy to use API.

That’s where the Cookie Consent Banner comes in.

In order to focus on the things that really matter, the Cookie Consent Banner supports us to fulfill that requirement.
It visualizes the available categories, like technically required and analysis, stores the decision of the user and provides an event-based API for you to handle appropriately. And of course, the consent data is stored locally in the vistors browser.

? Consent Flow

The consent banner has two tasks: Provide an UI Component with which visitors of your web application can choose which cookies they want to accept and to provide you an API to react on the choosen settings.

There are two typical scenarios. Either the external scripts, which set cookies are managed through a tag manager of your choice using the consent data, or the scripts are loaded or configured directly on code level.

Using a Tag Manager

The flow could look like this. Every script that sets cookies which require a consent from the visitor is blocked by default.
Instead, the Consent Banner is shown. Once the visitor updates it’s preferences an event is triggered (cookie_consent_preferences_updated).
Additionally the consent data is stored within a cookie in a format that can be parsed either programmatically or with a tag manager (e.g.: name: cookies_accepted_categories, value: technically_required,analytics,marketing). A tag manager could read the value of that 1st-Party Cookie before any other script (tag) is loaded (e.g.: Fire trigger only if Accepted Cookie Categories contains marketing).

Using the API directly

Have a look on the Real World example using the React Component: packages/cookie-consent-banner-react.

?️ Documentation

The Cookie Consent Banner supports multiple frontend frameworks, because it is build as an agnostic web component.
For easier integration we also provide a wrapper component for React environments.
It’s necessary to set at least the required properties for the component to work properly (see the provided examples).

Web Component – Vanilla JS

Follow the documentation of the Web Component: /packages/cookie-consent-banner

React Component

Follow the documentation of the React Component: /packages/cookie-consent-banner-react


Please note that you must individually assess the legal requirements regarding the implementation of the Cookie Consent Banner, in particular which choices to offer in which granularity and which information to provide in which detail and at which point of the user journey. The examples mentioned are not intended to provide any advice regarding legal requirements. All responsibility for the implementation of the Cookie Consent Banner and its compliance with legal requirements lies with the user.