Multi-step checkout process, shipping and payment information management, session handling, and order placement workflows.
The Magento_Checkout module orchestrates the entire checkout process, from cart to order placement. It manages the multi-step checkout flow, shipping address collection, shipping method selection, payment information handling, and the final order creation. This module is heavily JavaScript-driven, using Knockout.js components for the frontend checkout experience.
Multi-step checkout design, session management, Knockout.js component architecture, and service contract patterns.
Step-by-step checkout flow, shipping save, payment processing, order placement, and guest checkout handling.
Checkout session handling, quote recollection triggers, rate limiting plugins, and event subscriptions.
Quote, Sales, Payment, Shipping, Customer, and CatalogInventory module dependencies and data flow.
Session race conditions, address validation bypasses, payment state inconsistencies, and shipping method edge cases with verified workarounds.
Configurable checkout steps with shipping address, shipping method, payment information, and order review.
Full checkout capability for guest customers without account creation requirement.
Quote session handling with automatic cleanup and persistence across page loads.
12 REST endpoints for headless checkout implementations and PWA integrations.
Terms and conditions acceptance with configurable agreement types and validation.
Built-in CAPTCHA-based rate limiting for payment processing to prevent abuse.
The Checkout module depends on these core modules (defined in module.xml sequence):
Order creation, invoicing, and sales entity management
Shopping cart and quote management, totals calculation
Stock validation during checkout process