Modular Monolith Architecture & Microservices Reversal

A Modular Monolith is a single-deployable application architecture structured into logically independent bounded contexts using Domain-Driven Design (DDD). It achieves the operational simplicity and zero-latency RAM data passing of monolithic software while preserving clean module isolation, enabling organizations to eliminate microservices network overhead and cut AWS egress costs by up to 90% without sacrificing architectural flexibility. System Architecture Overview Answer-first: Modular Monolith architecture encapsulates distinct bounded contexts (e.g., Billing, Inventory, Orders) into a single Go binary process space, isolating domain data across PostgreSQL schemas while replacing external gRPC network hops with zero-allocation in-memory event channels. ...

Magento to Go Microservices: Vietnam Migration Series

Your Magento platform handles 2,000 orders a day. Your engineering team spends 60–70% of every sprint on maintenance — patches, extension conflicts, and EAV query optimization — instead of shipping features. Category pages take 4 seconds. Checkout breaks during flash sales. Adobe Commerce 2.4.5 and 2.4.6 lose security support on August 11, 2026. You’re not just facing a performance problem. You’re facing a compliance deadline. This series answers the question every CTO in your situation eventually asks: ...

Deterministic Concurrency Testing: Go 1.25 synctest

Tech Radar: Deterministic Concurrency Testing with Go 1.25 testing/synctest Answer-First: The testing/synctest package in Go 1.25/1.26 eliminates flaky concurrency tests by isolating goroutines inside an event-driven “concurrency bubble” governed by a synthetic time clock. Virtual time advances instantaneously the moment all goroutines in the bubble are durably blocked, reproducing multi-step race conditions, backoff retries, and network timeouts in 2ms instead of waiting for 5–10s real-world time.Sleep() delays. 1. The Core Dilemma of Concurrency Testing: The time.Sleep Anti-Pattern In high-throughput Go microservices (Kafka stream consumers, Dapr actor sagas, gRPC retry circuits, distributed rate-limiters), testing timeouts, backoff strategies, and race conditions has historically suffered from flaky test instability. ...