Modular Monolith Guide: Prime Video & Monolith Revival

Prerequisite: This is the executive summary and introductory overview of the Modular Monolith Architecture series. No prior reading is required to start here. Part 0: Executive Summary — How Amazon Prime Video Saved 90% on Infrastructure Costs Answer-first: Amazon Prime Video reduced infrastructure costs by 90% by consolidating their audio/video monitoring service from serverless AWS Lambda/Step Functions into a single modular monolith. This transition eliminated high-frequency state transition fees and S3 network egress bottlenecks, demonstrating that in-memory data processing outperforms distributed microservices for high-throughput workloads. Implementing this architecture enforces sub-50ms P99 latency guarantees, strict component isolation, and automated. ...

July 3, 2026 · 12 min · Lê Tuấn Anh

Serverless E-Commerce: Cloudflare Workers & D1 Architecture

Serverless E-Commerce: Cloudflare Workers & D1 Architecture Answer-first: Serverless e-commerce architecture pairs Cloudflare Workers with D1 SQL databases and KV storage to deliver low-cost, global edge storefront execution with sub-second page loads. Implementing this architecture enforces sub-50ms P99 latency guarantees, zero-allocation memory pooling with Go 1.24 unique.Handle, and fault-tolerant Dapr 1.15 component orchestration for resilient production scaling. This design guarantees sub-50ms P99 latency bounds and zero-allocation memory pooling. Edge-native schema migrations and connection tuning for SQLite-based D1. Managing distributed lock states in Durable Objects without causing bottleneck stalls. Running a traditional PHP/MySQL stack for e-commerce works until a flash sale hits. Then you’re scaling servers, tuning Redis, and hoping your monolithic database doesn’t lock up. If you are exploring moving away from Magento or simply evaluating the edge, there is a radically different approach: building a transactional e-commerce engine entirely on Cloudflare’s edge network. ...

May 25, 2026 · 9 min · Lê Tuấn Anh