Claude Code & Next.js 16 Build Multi-Vendor E-Commerce

Vibe Code a Production-Ready Multi-Vendor E-Commerce Marketplace with Claude Code, Next.js 16, Prisma & Stripe
What you'll learn

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Vibe code a complete multi-vendor marketplace from empty folder to working application
Master the Design → Spec → Build → Test → Secure → Deploy method for AI-assisted development
Build three full dashboards - customer, seller, and admin - each with role-based access
Split one customer order into per-seller sub-orders, the core of any real marketplace
Accept real payments with Stripe, including secure webhook-verified payment confirmation
Model complex data in Prisma and MySQL: products, variations, orders, reviews, and coupons
Implement multi-role authentication with NextAuth v5 and protect every route by role
Build a product system with variants, inventory, image uploads, and admin approval flows
Create a live chat system so customers and sellers can message each other directly
Write CLAUDE md rules that make AI build to your standards instead of guessing
Requirements

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Working knowledge of JavaScript and basic React - you should be comfortable with components, props, and state
Basic familiarity with the command line and Git
A computer running Windows, macOS, or Linux with Node.js installed
No prior experience with Next.js, Prisma, or AI-assisted development required. We set all of it up together
A paid Claude plan to code along in real time (a free plan will cut you off mid-feature). Every lecture also has a matching checkpoint in the course repository, so you can follow the entire build without one
A free Stripe test account for the payments section - no real money is ever charged
Description

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Most AI coding courses show you a flashy twenty-minute demo. Then you try to build something real, and it collapses the login is wide open, the checkout loses an order, and you're staring at thousands of lines of code you don't understand.
This course does the opposite. Together we buildCovet, a complete multi-vendor e-commerce marketplace many independent sellers, one storefront, one checkout using Claude Code and a repeatable professional method you'll own for life.
What Makes This Different
There's a version of "vibe coding" that builds toys, and a version that builds products. This course teaches the second one.
Security firm Veracode tested over a hundred AI models on real coding tasks and found that45% of AI-generated code shipped with a known security vulnerability and when they re-ran it with newer, more powerful models, the number hadn't improved. Speed without engineering isn't a superpower. It's a liability.
So we don't just prompt. We follow a method on every single feature
Design → Spec → Build → Test → Secure → Deploy
We design before we prompt, so the AI knows exactly what to make. We write specifications instead of vibes. We stay the architect the whole way through reviewing, testing, and understanding every part of what we ship.
What You'll Actually Build
This is not a to-do app with a payment button bolted on. Covet is a real marketplace
A complete storefront - home page with live flash deals, category browsing across a three-level category tree, product detail pages with image galleries and variant selection, seller storefronts, search, filtering, and a persistent cart
Multi-role authentication - customer, seller, and admin, each with their own registration, login, dashboard, and route protection, built with NextAuth v5 and bcrypt
A full seller dashboard - product management with variants and inventory, order fulfillment, coupon creation, earnings, sales reports, and store profile settings
A full admin dashboard - seller approval workflows, product moderation, category and brand management, platform-wide order oversight, review moderation, customer management, and commission reporting
A customer dashboard - order history, order tracking, wishlist, reviews, addresses, and profile management
Real checkout and payments - a three-step checkout that splits one order into per-seller sub-orders, applies vendor-scoped coupon validation, and takes payment through Stripe with secure webhook confirmation
A live chat system - customers and sellers messaging each other, with image support and persistent conversation history
A verified-review system - customers can only review what they actually bought, and admins moderate before anything goes live
The Engineering You Won't Get Elsewhere
This is where the course earns its name
Learn whyall money is stored as Decimal, never a float, and what breaks when it isn't
Enforcemulti-tenant data isolation so one seller can never read another seller's orders
Recalculateevery price server-side so a tampered cart can't change what a customer is charged
Confirm paymentonly through a signed Stripe webhook, never the browser's word for it
Writeidempotent webhook handlers that don't double-charge inventory on a retry
Keep sensitive documentsout of your public folder - and understand why that matters
Build aCLAUDE md rules file so the AI inherits your standards on every task, in every session
Your Next Step
By the end, you won't just have an impressive project for your portfolio. You'll have amethod a way of working with AI that you can point at any idea, any client, any startup, and build something that actually holds up in the real world.
That's the difference. Not faster demos. Real software.
Enroll now and let's build it together.
Who this course is for

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Developers who can already build basic CRUD apps but have never shipped something as complex as a marketplace, and want a project that proves they can
People using Claude Code or Cursor who get impressive demos that fall apart the moment real users touch them, and want a repeatable method instead of luck
Self-taught and bootcamp developers who need one substantial, production-grade portfolio project rather than five tutorial to-do apps
Freelancers and agency developers who want to deliver e-commerce and marketplace builds in a fraction of the usual time without shipping fragile code
Founders and indie hackers who want to build and own their marketplace product rather than paying for a template they can't extend
Working developers who suspect AI is changing their job and want to move from typing code to directing it
Homepage

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