Architecting Modern E-Commerce Systems: From First Principles to AI-Powered Marketplaces
A comprehensive, beginner-friendly yet production-focused guide to understanding, designing, building, operating, and scaling modern e-commerce platforms, multi-vendor marketplaces, and AI-powered commerce systems. This book starts with the fundamentals of commerce and gradually progresses into product catalogs, inventory management, payments, order processing, marketplace architecture, distributed systems, search engines, recommendation systems, analytics, AI assistants, agentic workflows, and large-scale production architecture. By the end of the book, readers will understand not only how modern commerce platforms work, but also how to architect systems comparable to Amazon, Shopify, Etsy, Daraz, and next-generation AI-native commerce platforms.
Table of Contents
Chapter 1: Introduction to E-commerce Architecture
Chapter 2: Understanding Business Models
Chapter 3: How Amazon, Shopify, and Marketplaces Work
Chapter 4: Product Catalog Design
Chapter 5: Categories, Tags, and Attributes
Chapter 6: Product Variants and SKUs
Chapter 7: Inventory Management Fundamentals
Chapter 8: Stock Reservation and Concurrency
Chapter 9: Multi-Warehouse Architecture
Chapter 10: Shopping Cart Architecture
Chapter 11: Checkout System Design
Chapter 12: Order Management System
Chapter 13: Payment Gateway Integration
Chapter 14: Webhooks and Event Processing
Chapter 15: Idempotency and Duplicate Payments
Chapter 16: Refunds, Cancellations, and Returns
Chapter 17: User Authentication and Authorization
Chapter 18: Customer Accounts and Profiles
Chapter 19: Review and Rating Systems
Chapter 20: Coupon, Discount, and Promotion Engines
Chapter 21: Shipping and Logistics Architecture
Chapter 22: Taxation and Billing Systems
Chapter 23: Search and Filtering Architecture
Chapter 24: Elasticsearch and Search Engines
Chapter 25: Recommendation System Architecture
Chapter 26: Notification Systems (Email, SMS, Push)
Chapter 27: Marketplace and Multi-Vendor Fundamentals
Chapter 28: Vendor Onboarding and Verification
Chapter 29: Vendor Store Management
Chapter 30: Commission and Revenue Models