Full-Stack2024 · 5 months

Aurora Minimal Storefront

Headless e-commerce with instantaneous page transitions.

Role

Full-Stack Developer

Client / Team

Aurora Objects

Timeline

5 months

Links

Live

Aurora objects minimalist product detail page and clean cart sheet

Checkout Conversion

+28%

Improvement over previous monolithic storefront

Cart Interaction Latency

0ms

Optimistic UI updates with server reconciliation

Bundle Size

68 KB

Total gzipped JavaScript on product landing pages

The Challenge

Problem & Constraints

Client's existing e-commerce platform took 4.5 seconds to load and frequently lost cart states during spotty mobile network connections.

The Solution

Architectural Approach

Rebuilt the entire purchasing funnel with Next.js Server Actions and optimistic local updates, ensuring cart operations work reliably even under slow 3G conditions.

Engineering Stack

System Architecture

Technologies & Tools

Next.js App RouterStripeTailwind CSSTypeScriptZod

Key Architectural Decisions

Handled all checkout pricing computations strictly server-side to prevent client price tampering.
Used optimistic UI for add-to-cart actions with automatic rollback on network failure.

Resilient Cart System

Zero-latency feedback on mobile connections

Users expect instantaneous feedback when adding items to their basket. Aurora uses optimistic updates so the UI responds in 0ms while the server action commits in the background.

Outcomes

Deliverables & Assets

Optimistic Cart Architecture

React 19 useOptimistic cart mutations ensuring immediate tactile feedback on mobile devices.

Server Action Checkout Flow

Cryptographically verified Stripe checkout sessions created entirely on the server with Zod validation.

Responsive Product Media Grid

Aspect-ratio locked responsive image gallery with zero layout shift during progressive image load.

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