Has-Consent

GDPR consent string validation library

About

Decoder of GDPR consent strings for the browser, including helpers to detect vendor permissions. If you're looking for something to use in NodeJS, try the consent-string library. This decoder is built for a smaller bundle size. Inspiration for this smaller library was taken from the Java-based IAB consent string parser.

Installation

You can install via npm: npm install has-consent --save-dev

Usage

This library is compiled to a CommonJS2 format bundle in the /dist directory. Both minified and non-minified copies are written, but the minified version is returned by the main property. Has-Consent should be referenced and included in your bundle, and is not intended to be dropped straight on to a web page.

const { ConsentStringParser } = require("has-consent");

const MY_VENDOR_ID = 7;

const consent = new ConsentStringParser("BN5lERiOMYEdiAOAWeFRAAYAAaAAptQ");
consent.vendorAllowed(MY_VENDOR_ID); // true

This library also handles purposes validation. You can read more about the supported methods in the API documentation;

IAB Global Vendors List

You can find the complete list of IAB vendor IDs (along with purposes) here.