Composable Commerce

Overview

Composable commerce is an architectural approach based on MACH principles — Microservices, API-first, Cloud-native, Headless — where each commerce capability (cart, catalog, search, CMS, checkout, loyalty) is provided by a best-of-breed service rather than a monolithic platform. Services communicate via APIs and events, enabling teams to replace or upgrade individual capabilities without touching the rest of the system. This skill covers MACH architecture patterns, service integration, event-driven coordination, and the operational considerations of running a composable stack in production.

When to Use This Skill

• When a monolithic platform (Magento, Salesforce CC) can no longer scale with your team or traffic patterns
• When different domains (catalog, checkout, loyalty) have divergent release cadences and ownership
• When you need to mix best-of-breed vendors — e.g., Algolia for search, Contentful for CMS, commercetools for commerce
• When entering new markets requiring different fulfillment, pricing, or tax providers per region
• When building a platform that must support multiple storefronts (web, mobile, in-store, B2B portal) from a single backend

Prerequisites & Platform Notes

This skill is written for custom/headless storefronts (Node.js, Python, or similar backend). The code examples use TypeScript/Node.js and can be adapted to any stack.