Microservices-Based Digital eCommerce Platform

Our client used multiple third party systems for order management with individual deployments in regions such as Canada, China, and the United States. They faced several challenges with the existing system and wanted to replace it with an in-house, global order management system.

The microservices-based architecture provides the foundation for the digital eCommerce solution, comprising over 20 platforms that cater to all the functions of the EC store. Following is an overview of the main ones developed:

Order Fulfillment: Core, Basket, Payment, Inventory, Order History, Cost, and Sales

Frontend: CMS, SPA, Web and Mobile BFF

Customer: Account, Coupon, Newsletter, Analytics, Catalog

Store: Customer Support, Order Management, POS, and Reporting

• Performance testing revealed that the eCommerce system was able to handle twice the load compared to the previous year
• Ability to handle up to a million requests per hour
• Solution deployed across geographies by enabling features location-wise
• Sales of a seasonal product increased six times in a single day
• Increased control over inventory
• Significant cost savings with in-house solution when compared to older system

• Distributed caching layer (Redis) stores a copy of data fetched from the database and other microservices, reducing the number of expensive API/database calls, and improving performance
• Query optimization and replacement of certain libraries with those having lower processing costs improved response time
• Optimal use of in-memory data to avoid repetitive calls to database
• Asynchronous processing of orders ensures stability during spikes in demand
• Server-side rendering for a few pages helped cache data and display results faster

• Java 11
• Spring Batch
• Node
• PHP
• Redis
• Docker
• Flyway
• Spring Boot
• Maven
• Golang
• Kubernetes
• PostgreSQL
• Kafka
• React/Redux-Saga