Triplex E-commerce

A premium wearable-commerce experience built as a complete product system

Product Goal

Triplex was built to demonstrate more than a storefront UI. The goal was to create a dependable commerce flow where content editors can manage products, customers can keep their carts across devices, and orders remain consistent through authentication, payment, and inventory changes.

My Role

Sole product and engineering ownership

Product and interaction design
Next.js application architecture
Commerce data modelling and Sanity Studio configuration
Authentication, cart, checkout, and order-history implementation
Stripe payment and webhook integration
Deployment, error handling, and production hardening

Engineering Approach

Content and Identity

Sanity manages products, categories, collections, and order content
Clerk provides authentication and protected customer order history
Dynamic metadata supports product discovery and shareable pages

Cart and Checkout

Zustand and local storage provide immediate client-side cart state
Upstash Redis persists carts across authenticated devices
Stripe handles checkout, with signed webhooks used to confirm payment events

Order and Inventory Reliability

Prices and stock are revalidated on the server before checkout
Duplicate-order protection prevents repeated payment events from creating multiple orders
Inventory updates are handled as part of the confirmed order workflow

Why This Project Matters

Triplex demonstrates full-stack product judgment: joining interface quality with content operations, secure identity, payment processing, persistent state, and defensive server-side validation.