Sign-In
Cart
Event-Driven Architecture Pocket Guide: Saga, CQRS, Outbox, and the Traps Nobody Warns You About
Paperback
Series: Pocket Guides for Developers
Please select the version of book you would like to purchase.
ISBN13: 9798258870285
Publisher: Independently Published
Published: Apr 25 2026
Pages: 416
Weight: 1.22
Height: 0.85 Width: 6.00 Depth: 9.00
Language: English
Publisher: Independently Published
Published: Apr 25 2026
Pages: 416
Weight: 1.22
Height: 0.85 Width: 6.00 Depth: 9.00
Language: English
Look at any business workflow and decide - on purpose - whether to model it request-response or event-driven, then pick the right patterns (outbox, saga, CQRS, event sourcing) without over-engineering or under-engineering. You shipped request-response services for years. Now a product manager wants an event-driven one - or you inherited one already in production and it is groaning under its own complexity. Dual writes are losing messages. A saga compensates halfway and leaves orphaned state. Consumers break every time the event schema changes. Somebody added Kafka because it scales, and now nobody can trace a request end to end. You need the patterns, the trade-offs, and the anti-patterns spelled out - fast, without wading through 600 pages of abstract theory. Event-Driven Architecture Pocket Guide is the working engineer's reference for building event-driven systems that do not collapse under their own weight. Across 15 chapters and five parts, it covers the whole landscape as of 2026 - Kafka 4.0, Redpanda, Pulsar 4.1, NATS JetStream, RabbitMQ quorum queues, Debezium 3.x, Confluent and Buf schema registries, Temporal, AWS Step Functions - and shows exactly when each pattern earns its complexity budget and when it becomes the wrong tool. What you will take away:
- Commands vs events - the subtle tense difference that determines whether your system scales or calcifies, and where architectural drift in event-driven systems actually starts.
- The outbox pattern done right - why dual writes lose data, how to implement the production-proven fix on Postgres / MySQL, and the we tried two-phase commit cautionary tale.
- Saga, CQRS, event sourcing - orchestration vs choreography, when to split reads from writes, when the log IS the database, and the three common traps for each.
- Broker trade-offs on six axes - throughput, latency, ordering, retention, cost, and operational burden - for Kafka, Pulsar, NATS, RabbitMQ, and Redpanda.
- Twelve real system designs - e-commerce orders, Stripe-style payments, IoT telemetry, ride-share dispatch, video encoding, fraud detection, inventory, notifications, and more - each walked from requirements to chosen stack to exit criteria.
- Anti-patterns that wreck production - events used as commands, the event-driven monolith, missing contract tests, no backpressure strategy, message-bus-as-database - with the recovery paths that actually work. Primary code examples are in Java 21 (Spring Boot / Micronaut) because Kafka + Spring is the dominant production stack. Python 3.13 and Go 1.24 snippets carry the lighter examples. Schema samples cover Avro, JSON Schema, and Protobuf. Every version is locked to April 2026 and web-verified in the fact-check pass. Who this book is for: backend and platform engineers being asked to build event-driven systems, tech leads choosing between EDA and request-response for a new system, and anyone who inherited an event-driven system and needs to keep it running without rewriting it. Baseline assumed: you have shipped at least one production service; you know SQL, HTTP, and what a queue is. Other books in Pocket Guides for Developers (standalone, no reading order):
- System Design Fundamentals
- System Design Interviews
- AI Agents Pocket Guide
- Prompt Engineering Pocket Guide
- Database Playbook
- LLM Observability Pocket Guide
- This book - Event-Driven Architecture Pocket Guide
- RAG Pocket Guide Companion handbook: Observability for LLM Applications (The AI Engineer's Library, Book 1).
- The outbox pattern done right - why dual writes lose data, how to implement the production-proven fix on Postgres / MySQL, and the we tried two-phase commit cautionary tale.
- Saga, CQRS, event sourcing - orchestration vs choreography, when to split reads from writes, when the log IS the database, and the three common traps for each.
- Broker trade-offs on six axes - throughput, latency, ordering, retention, cost, and operational burden - for Kafka, Pulsar, NATS, RabbitMQ, and Redpanda.
- Twelve real system designs - e-commerce orders, Stripe-style payments, IoT telemetry, ride-share dispatch, video encoding, fraud detection, inventory, notifications, and more - each walked from requirements to chosen stack to exit criteria.
- Anti-patterns that wreck production - events used as commands, the event-driven monolith, missing contract tests, no backpressure strategy, message-bus-as-database - with the recovery paths that actually work. Primary code examples are in Java 21 (Spring Boot / Micronaut) because Kafka + Spring is the dominant production stack. Python 3.13 and Go 1.24 snippets carry the lighter examples. Schema samples cover Avro, JSON Schema, and Protobuf. Every version is locked to April 2026 and web-verified in the fact-check pass. Who this book is for: backend and platform engineers being asked to build event-driven systems, tech leads choosing between EDA and request-response for a new system, and anyone who inherited an event-driven system and needs to keep it running without rewriting it. Baseline assumed: you have shipped at least one production service; you know SQL, HTTP, and what a queue is. Other books in Pocket Guides for Developers (standalone, no reading order):
- System Design Fundamentals
- System Design Interviews
- AI Agents Pocket Guide
- Prompt Engineering Pocket Guide
- Database Playbook
- LLM Observability Pocket Guide
- This book - Event-Driven Architecture Pocket Guide
- RAG Pocket Guide Companion handbook: Observability for LLM Applications (The AI Engineer's Library, Book 1).
Also from
Anhaia, Gabriel
TypeScript Esencial: De Desarrollador en Activo a TypeScript con Soltura, en Node, Bun, Deno y el Navegador
Anhaia, Gabriel
Paperback
$28.12
TypeScript in Production: Tooling, Build, and Library Authoring Across Runtimes
Anhaia, Gabriel
Paperback
$23.99
Decoupled PHP: Clean and Hexagonal Architecture for Applications That Outlive the Framework
Anhaia, Gabriel
Paperback
$29.99
PHP entkoppeln: Clean Architecture und Hexagonale Architektur für Anwendungen, die das Framework überleben
Anhaia, Gabriel
Paperback
$32.08
Observability for LLM Applications: Tracing, Evals, and Shipping AI You Can Trust
Anhaia, Gabriel
Paperback
$29.99
Spaced Repetition: Warum KI jede Lernkarte erstellen kann, aber dich nichts behalten lässt
Anhaia, Gabriel
Paperback
$18.35
Regex Pocket Guide: Quick Reference to Regular Expressions for Developers & Tech Professionals
Anhaia, Gabriel
Paperback
$13.86
Agentes en Producción: Construir, tracing y deploy de IA multipaso en la que puedes confiar
Anhaia, Gabriel
Paperback
$34.30
Agents in Production: Building, Tracing, and Shipping Multi-Step AI You Can Trust
Anhaia, Gabriel
Paperback
$29.99
System Design Pocket Guide: Interviews: 15 Real System Designs, Step by Step
Anhaia, Gabriel
Paperback
$23.99
Guía de bolsillo de agentes de IA: Patrones para construir sistemas autónomos con LLMs
Anhaia, Gabriel
Paperback
$20.57
Observability para LLM Applications: Tracing, evals y deploy de IA en la que puedes confiar
Anhaia, Gabriel
Paperback
$34.30
KI-Agenten - Das Pocket-Handbuch: Patterns für den Bau autonomer Systeme mit LLMs
Anhaia, Gabriel
Paperback
$20.57
LLM Observability Pocket Guide: Picking the Right Tracing & Evals Tools for Your Team
Anhaia, Gabriel
Paperback
$23.99
Observability for LLM Applications: Tracing, Evals, and Shipping AI You Can Trust
Anhaia, Gabriel
Paperback
$34.30
Also in
Programming
Interactive Theorem Proving and Program Development: Coq'art: The Calculus of Inductive Constructions
Bertot, Yves
Castéran, Pierre
Hardcover
$194.60
The Legend of Zelda(tm) Tears of the Kingdom - The Complete Official Guide: Collector's Edition
Piggyback
Hardcover
$42.74
Python Crash Course, 3rd Edition: A Hands-On, Project-Based Introduction to Programming
Matthes, Eric
Paperback
$44.99
Crisis Engineering: Time-Tested Tools for Turning Chaos Into Clarity
Nitze, Marina
Weaver, Matthew
Dickerson, Mikey
Paperback
$18.99
Embedded Systems with ARM Cortex-M Microcontrollers in Assembly Language and C: Fourth Edition
Zhu, Yifeng
Paperback
$86.88
Accelerate: The Science of Lean Software and DevOps: Building and Scaling High Performing Technology Organizations
Forsgren Phd, Nicole
Humble, Jez
Kim, Gene
Paperback
$20.89
The Legend of Zelda(tm) Tears of the Kingdom - The Complete Official Guide: Standard Edition
Piggyback
Paperback
$28.49
Vibe Coding: Building Production-Grade Software with Genai, Chat, Agents, and Beyond
Yegge, Steve
Kim, Gene
Paperback
$30.40
Fundamentals of Software Architecture: A Modern Engineering Approach
Richards, Mark
Ford, Neal
Paperback
$75.99
I Have an App Idea: The Essential Guide to Building an App Without Tech Skills
Spann, Amanda
Paperback
$17.05
Make: Electronics: Learning by Discovery: A Hands-On Primer for the New Electronics Enthusiast
Platt, Charles
Paperback
$33.24
AI Projects with Raspberry Pi: High-Performance Artificial Intelligence for Robotics, Security, Home Automation, and Vision
Jepson, Brian
Hattersley, Lucy
Paperback
$21.84
The Manager's Path: A Guide for Tech Leaders Navigating Growth and Change
Fournier, Camille
Paperback
$37.99
The Devops Handbook, 2nd Edition: How to Create World-Class Agility, Reliability, & Security in Technology Organizations
Debois, Patrick
Kim, Gene
Humble, Jez
Paperback
$36.10
Building Applications with AI Agents: Designing and Implementing Multiagent Systems
Albada, Michael
Paperback
$75.99
The Staff Engineer's Path: A Guide for Individual Contributors Navigating Growth and Change
Reilly, Tanya
Paperback
$43.69
The Developer's Guide to AI: A Field Guide for the Working Developer
Orshalick, Jacob
Reghunadh, Jerry M.
Thompson, Danny
Paperback
$56.99
Cracking the Coding Interview: 189 Programming Questions and Solutions
McDowell, Gayle Laakmann
Paperback
From $24.99
The New AI Cold War: Liberty vs. Tyranny in the Age of Machine Empires
Maginnis, Ltc Robert L.
Paperback
$31.83
Software Architecture: The Hard Parts: Modern Trade-Off Analyses for Distributed Architectures
Richards, Mark
Sadalage, Pramod
Ford, Neal
Paperback
$75.99
Learning Web Design: A Beginner's Guide to Html, Css, Javascript, and Web Images
Robbins, Jennifer
Paperback
$75.99
Observability Engineering: Achieving Production Excellence
Miranda, George
Majors, Charity
Fong-Jones, Liz
Paperback
$66.49
The Return on AI: From Promise to Profit in the Age of Intelligent Business
Sawhney, Mohanbir
Mittal, Ashwin
Paperback
$18.69
Building Safer Technology: A Field Guide to Failing Well
Kissner, Lea
Zunger, Yonatan
Coles, Neil
Paperback
$65.99
Forecasting: Principles and Practice, the Pythonic Way
Hyndman, Rob J.
Athanasopoulos, George
Paperback
$76.00
SQL QuickStart Guide: The Simplified Beginner's Guide to Managing, Analyzing, and Manipulating Data With SQL
Shields, Walter
Hardcover
$33.24
The Pragmatic Programmer: Your Journey to Mastery, 20th Anniversary Edition
Thomas, David
Hunt, Andrew
Hardcover
$54.99
Linux Basics for Hackers, 2nd Edition: Getting Started with Networking, Scripting, and Security in Kali
Occupytheweb
Paperback
$37.99
Generative AI Design Patterns: Solutions to Common Challenges When Building Genai Agents and Applications
Lakshmanan, Valliappa
Hapke, Hannes
Paperback
$75.99
The Official Raspberry Pi Handbook 2026: Astounding Projects with Raspberry Pi Computers
Makers of Raspberry Pi Official Magazine, The
Paperback
$23.74
Head First Design Patterns: Building Extensible and Maintainable Object-Oriented Software
Freeman, Eric
Robson, Elisabeth
Paperback
$75.99
Concrete Mathematics: A Foundation for Computer Science
Graham, Ronald
Patashnik, Oren
Knuth, Donald
Hardcover
$107.99
Learning Domain-Driven Design: Aligning Software Architecture and Business Strategy
Khononov, Vlad
Paperback
$62.69
Arduino Programming for Beginners: A Comprehensive Beginner's Guide to Learn the Realms of Arduino Programming from A-Z
Protosmith, Ada
Paperback
$18.99
Frictionless: 7 Steps to Remove Barriers, Unlock Value, and Outpace Your Competition in the AI Era
Forsgren, Nicole
Noda, Abi
Paperback
$33.74
Grokking Algorithms, Second Edition: An Illustrated Guide for Programmers and Other Curious People
Bhargava, Aditya Y.
Paperback
$62.49
Building AI-Powered Products: The Essential Guide to AI and Genai Product Management
Nika, Marily
Paperback
$42.74
Debugging: The 9 Indispensable Rules for Finding Even the Most Elusive Software and Hardware Problems
Agans, David J.
Paperback
$18.99
Learning Generative AI Tools for Excel: Speed Up Your Everyday Tasks with Microsoft Excel, Copilot, Chatgpt, and Beyond
Duca, Angelica Lo
Paperback
$56.99
The Software Architect Elevator: Redefining the Architect's Role in the Digital Enterprise
Hohpe, Gregor
Paperback
$62.69
Site Reliability Engineering: How Google Runs Production Systems
Beyer, Betsy
Murphy, Niall Richard
Jones, Chris
Paperback
$56.99
Computer Science from Scratch: Building Interpreters, Art, Emulators and ML in Python
Kopec, David
Paperback
$47.49
Learning Php, MySQL & JavaScript: A Step-By-Step Guide to Creating Dynamic Websites
Nixon, Robin
Paperback
$56.99
Software Engineering at Google: Lessons Learned from Programming Over Time
Winters, Titus
Manshreck, Tom
Wright, Hyrum
Paperback
$62.69
Python Programming for Young Coders: A Hands-On, Project-Based Introduction to Coding for Beginners, Kids, and Teens
Pandey, Anand
Paperback
$20.57
Living a Jewish Life, Revised and Updated: Jewish Traditions, Customs, and Values for Today's Families
Cooper, Howard
Diamant, Anita
Paperback
$21.84
Build an AI Agent (from Scratch): Agents That Reason, Plan, and ACT Autonomously
Hur, Jungjun
Song, Younghee
Paperback
$74.99
Adobe Photoshop, 2nd Edition: A Complete Course and Compendium of Features
Laskevitch, Stephen
Paperback
$52.20
Kubernetes in Action, Second Edition: Deploying and Managing Containers and Cloud-Native Applications
Luksa, Marko
Conner, Kevin
Paperback
$87.49
Articulating Design Decisions: Communicate with Stakeholders, Keep Your Sanity, and Deliver the Best User Experience
Greever, Tom
Paperback
From $17.99
Prompt Engineering for Llms: The Art and Science of Building Large Language Model-Based Applications
Berryman, John
Ziegler, Albert
Paperback
$75.99
Pro C# 10 with .Net 6: Foundational Principles and Practices in Programming
Troelsen, Andrew
Japikse, Phil
Paperback
$56.99
Electronic Music and Sound Design - Theory and Practice with Max 9 - Volume 1 (Fifth Edition)
Cipriani, Alessandro
Maurizio, Giri
Paperback
$76.85