Digital Product Passport (DPP) Demo Platform 🇪🇺

An end-to-end, locally runnable demonstration of a Digital Product Passport system built to align with the upcoming EU Ecodesign for Sustainable Products Regulation (ESPR) and the Chainledger consortium standards.

🚀 Features

• Chainledger-Compliant Data Model: 7 Prisma models covering the entire product lifecycle (Materials, Processes, Footprint, Certifications, etc.).
• eIDAS 2.0 Role Simulation: Next.js Middleware simulating 4 distinct roles (Consumer, Recycler, Auditor, Brand Admin) with field-level data filtering in the API.
• GDPR Article 30 Compliance: Automatic logging of data access tied to eIDAS pseudo-identities.
• SHACL Schema Validation: Simulated Zod validation engine for incoming ESPR payloads.
• GS1 Digital Link URI Resolution: Resolving products strictly via GS1 syntax.

🧩 Tech Stack

• Framework: Next.js 14 (App Router)
• Language: TypeScript
• Database: Prisma ORM with SQLite (for easy local portable demo)
• Styling: Tailwind CSS, Glassmorphism UI
• Libraries: React Leaflet (Supply Chain Maps), Recharts (Ecological Footprint), Lucide React (Icons), Zod (Validation)

📦 Run Locally

1. Install dependencies:

   npm install

2. Generate Prisma Client & Push Schema:

   npx prisma db push

3. Seed the Database (Loads the H&M Sustainable Outfit demo data):

   npm run prisma:seed

4. Start Development Server:

   npm run dev

Navigate to http://localhost:3000 to view the Customer Landing Page and access the B2C passport, B2B Dashboard, and Admin PIM Hub.

🚢 Deployment (Vercel)

For stateless deployment to Vercel, ensure you bind a PostgreSQL/MySQL database via Vercel Storage instead of using SQLite, as Serverless functions have read-only filesystems. Since this is a demo, deploying with SQLite works for purely read-only interactions (assuming the dev.db is committed to the repository).