--- title: How to Log GDPR Consent in Node.js (And Why Your Cookie... description: A cookie banner alone is not GDPR compliance — the data controller must maintain verifiable consent records. A defensible consent log needs five elements: who... canonical: https://daily.dev/posts/how-to-log-gdpr-consent-in-node-js-and-why-your-cookie-banner-isn-t-proof--f7hncgbv6 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: How to Log GDPR Consent in Node.js (And Why Your Cookie Banner Isn’t Proof) | daily.dev og:description: A cookie banner alone is not GDPR compliance — the data controller must maintain verifiable consent records. A defensible consent log needs five elements: who... og:url: https://daily.dev/posts/how-to-log-gdpr-consent-in-node-js-and-why-your-cookie-banner-isn-t-proof--f7hncgbv6 og:image: https://api.daily.dev/og/posts/F7hncgBV6.png og:image:alt: How to Log GDPR Consent in Node.js (And Why Your Cookie Banner Isn’t Proof) og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # How to Log GDPR Consent in Node.js (And Why Your Cookie Banner Isn’t Proof) **[Dev Genius](https://daily.dev/sources/devgenius)** · 1 min read · 1 upvotes · 0 comments ## Summary A cookie banner alone is not GDPR compliance — the data controller must maintain verifiable consent records. A defensible consent log needs five elements: who consented, what they consented to, when, how, and a record of what the interface looked like at that moment. The full guide (linked externally) covers a minimal schema and a Node.js/Express implementation for logging consent events, including IP hashing instead of raw IP storage to avoid a secondary compliance trap. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What information do I need to store to have a legally defensible GDPR consent record? A defensible consent record needs five elements: who consented, what exactly they consented to, when consent was given, how it was captured, and proof of what the consent interface looked like at that moment. Most solo developers only store two of these five, which is typically the first gap flagged during a compliance audit. _Developers building EU-facing apps track practical GDPR consent-logging guidance like this on daily.dev._ ### Should I store raw IP addresses when logging user consent events for GDPR? No, storing raw IP addresses in consent logs creates its own compliance risk under GDPR since IP addresses are personal data. Hashing the IP address before storage is recommended as part of a minimal consent-logging schema for Node.js/Express applications. _Teams wiring up compliant consent logging can keep tabs on privacy-safe data handling patterns via daily.dev._ ## Similar posts on daily.dev - [Do You Actually Need a Consent Management Platform as a Solo Developer?](https://daily.dev/posts/do-you-actually-need-a-consent-management-platform-as-a-solo-developer--evr1sv30f) · Medium · 0 upvotes · 0 comments - [Cookie Consent Management in 2026, Part 1: Overview](https://daily.dev/posts/cookie-consent-management-in-2026-part-1-overview-y0fob9qey) · Cloud Four · 0 upvotes · 0 comments - [We Value Your Privacy](https://daily.dev/posts/we-value-your-privacy-jzkbbx6zk) · Simple Thread · 5 upvotes · 1 comments - [Most Cookie Consent Banners Don’t Check for Compliance](https://daily.dev/posts/most-cookie-consent-banners-don-t-check-for-compliance-iorcbq7xu) · Cloud Four · 2 upvotes · 0 comments - [The Internet's Biggest Annoyance:Why Cookie Laws Should Target Browsers, Not Websites](https://daily.dev/posts/the-internet-s-biggest-annoyance-why-cookie-laws-should-target-browsers-not-websites-4b3o850jd) · Hacker News · 5 upvotes · 2 comments --- Tags: [#security](https://daily.dev/tags/security), [#nodejs](https://daily.dev/tags/nodejs), [#gdpr](https://daily.dev/tags/gdpr) [View this post on daily.dev](https://daily.dev/posts/how-to-log-gdpr-consent-in-node-js-and-why-your-cookie-banner-isn-t-proof--f7hncgbv6) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"How to Log GDPR Consent in Node.js (And Why Your Cookie Banner Isn’t Proof)","url":"https://daily.dev/posts/how-to-log-gdpr-consent-in-node-js-and-why-your-cookie-banner-isn-t-proof--f7hncgbv6","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/how-to-log-gdpr-consent-in-node-js-and-why-your-cookie-banner-isn-t-proof--f7hncgbv6"},"datePublished":"2026-08-07T21:16:26.597Z","dateModified":"2026-09-13T18:30:14.968Z","description":"A cookie banner alone is not GDPR compliance — the data controller must maintain verifiable consent records. 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