How to Build an E-Commerce Platform
Create a modern e-commerce platform with product management, shopping cart, checkout, and payment processing.
What You'll Learn
This advanced-level guide walks you through how to build an e-commerce platform step by step. Estimated time: 22 min.
Step 1: Design the data model
Create schemas for products, variants, categories, inventory, carts, orders, and customer accounts with proper relationships.
Step 2: Build product management
Implement product listing, search, filtering, categories, and variant management with image handling and SEO metadata.
Step 3: Create the shopping cart
Build a persistent cart system that handles guest and authenticated users, quantity management, and price calculations.
Step 4: Implement checkout flow
Design a multi-step checkout with address collection, shipping calculation, tax computation, and order review.
Step 5: Integrate payment processing
Add Stripe for card payments with proper error handling, webhook processing for payment confirmation, and refund management.
Step 6: Set up order management
Build order tracking, fulfillment workflows, inventory updates, and customer notification emails.
Frequently Asked Questions
Should I build or use Shopify?▾
Use Shopify for standard retail e-commerce. Build custom for unique business logic, marketplace models, or when Shopify's transaction fees eat into margins.
How do I handle inventory across channels?▾
Use a centralized inventory service with real-time stock tracking, reservation on cart addition, and release on cart abandonment timeout.
What payment processor should I use?▾
Stripe for developer experience and global coverage, Square for in-person retail integration, or PayPal for maximum consumer recognition.