Architecture Case Study: ecommerce

E-Commerce Engine

"Shopify takes 2.9% of every sale plus monthly fees. Your store looks like everyone else's. Page loads are slow, checkout abandonment is high, and you can't customize the experience your customers deserve."

CONSTRAINT: Headless & High-Conversion

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Technical Implementation

Composable commerce with clear separation of concerns. Medusa.js handles product catalog, cart, inventory, and order management via REST/GraphQL API. Next.js frontend with Static Site Generation (SSG) for product pages, Incremental Static Regeneration (ISR) for inventory updates. Stripe Elements for PCI-compliant checkout you fully control.

ADR: DECISION: Medusa.js over Shopify/WooCommerce. RATIONALE: Shopify charges 2.9% + $0.30 per transaction plus monthly fees. Medusa is open-source with zero transaction fees—only Stripe's base rate. Full checkout customization increases conversion 15-20% vs. hosted redirect flows.