mviegas / cqrs-path

Repo with a simple markdown file containg all content that I consumed during my CQRS learning path. The order of the links is in, what I consider, the best way for learning from scratch all the concepts, gains and drawbacks before actually start to code.

cqrs-path

Repo with a simple markdown file containg all content that I consumed during my CQRS learning path. The order of the links is in, what I consider, the best way for learning from scratch all the concepts, gains and drawbacks before actually start to code.

Image from the book Exploring CQRS and Event Sourcing (Microsoft patterns & practices). This book it is a great place to start, btw.

General stuff

• Command Query Separtion, by Martin Folwer: https://martinfowler.com/bliki/CommandQuerySeparation.html
• Pattern: Command Query Responsibility Segregation (CQRS), by Chris Richardson: https://microservices.io/patterns/data/cqrs.html
• CQRS Documents, by Greg Young: https://cqrs.files.wordpress.com/2010/11/cqrs_documents.pdf
• CQRS, Task Based UIs, Event Sourcing agh!, by Greg Young: http://codebetter.com/gregyoung/2010/02/16/cqrs-task-based-uis-event-sourcing-agh/
• CQRS Bliki, by Martin Fowler: https://martinfowler.com/bliki/CQRS.html
• Implementing CQRS with .Net Core (PT-BR): https://www.youtube.com/watch?v=AQcsfIXQj18&list=PLiLEprTIvTvazGZr-FCXdRUNmMZ0GoHk0&index=2&t=0s
• CQRS Theory and Practice (PT-BR): https://www.youtube.com/watch?v=lBr1DCfM90U&list=PLiLEprTIvTvazGZr-FCXdRUNmMZ0GoHk0&index=3&t=0s
• Task Based UIs: https://cqrs.wordpress.com/documents/task-based-ui/
• Microservices + Events + Docker = A Perfect Trio, talk by Chris Richardson: https://www.youtube.com/watch?v=sSm2dRarhPo
• Tackling complexity in CQRS, by Vladikk: https://vladikk.com/2017/03/20/tackling-complexity-in-cqrs/

Two steps back for so much more ahead: some DDD background

• Domain Driven Design: The Good Parts, by Jimmy Bogard: https://www.youtube.com/watch?v=U6CeaA-Phqo&list=PLiLEprTIvTvazGZr-FCXdRUNmMZ0GoHk0&index=26&t=0s
• Crafting Wicked Domain Models, by Jimmy Bogard: https://www.youtube.com/watch?v=UYmTUw5LXwQ&list=PLiLEprTIvTvazGZr-FCXdRUNmMZ0GoHk0&index=27&t=0s
• Implementing Domain Driven Design, by Vaugh Vernon: https://www.amazon.com/Implementing-Domain-Driven-Design-Vaughn-Vernon/dp/0321834577
• Domain Driven Design, by Eric Evans: https://www.amazon.com/dp/0321125215

Domain Events

• Domain Events, by Martin Fowler: https://martinfowler.com/eaaDev/DomainEvent.html
• https://docs.microsoft.com/en-us/dotnet/architecture/microservices/microservice-ddd-cqrs-patterns/domain-events-design-implementation
• Domain events: simple and reliable solution, by Vladimir Khorikov: https://enterprisecraftsmanship.com/posts/domain-events-simple-reliable-solution/
• A better domain events pattern, by Jimmy Bogard https://lostechies.com/jimmybogard/2014/05/13/a-better-domain-events-pattern/
• Domain Events vs. Integration Events in Domain-Driven Design and microservices architectures, by Cesar de la Torre: https://devblogs.microsoft.com/cesardelatorre/domain-events-vs-integration-events-in-domain-driven-design-and-microservices-architectures/
• Using Domain Events within a .NET Core Microservice, by Cesar de la Torre: https://devblogs.microsoft.com/cesardelatorre/using-domain-events-within-a-net-core-microservice/
• Domain Events vs. Integration Events, by Arley Pádua: https://medium.com/@arleypadua/domain-events-vs-integration-events-5eb29a34fdbc
• How to publish and handle Domain Events, by Kamil Grzybek: http://www.kamilgrzybek.com/design/how-to-publish-and-handle-domain-events/
• Handling Domain Events: Missing Part, by Kamil Grzybek: http://www.kamilgrzybek.com/design/handling-domain-events-missing-part/

Event Sourcing

• Event Sourcing: https://arkwright.github.io/event-sourcing.html
• Event Granularity: Modelling events in event driven applications, by Barry O Sullivan: https://dev.to/barryosull/event-granularity-modelling-events-in-event-driven-applications-e50
• Event Sourcing, by Martin Fowler: https://martinfowler.com/eaaDev/EventSourcing.html
• The Many Meanings of Event-Driven Architecture, by Martin Fowler: https://www.youtube.com/watch?v=STKCRSUsyP0
• Event Sourcing: The Good, The Bad and The Ugly, by Dennis Doomen: https://www.continuousimprover.com/2017/11/event-sourcing-good-bad-and-ugly.html
• What they don’t tell you about event sourcing, by Hugo Rocha: https://medium.com/@hugo.oliveira.rocha/what-they-dont-tell-you-about-event-sourcing-6afc23c69e9a
• Why Event Sourcing is a microservice communication anti-pattern, by Oliver Libutzki: https://dev.to/olibutzki/why-event-sourcing-is-a-microservice-anti-pattern-3mcj
• How CQRS works with Spring tools, by Jakub Pilimon: https://thenewstack.io/how-cqrs-works-with-spring-tools/

Data, Consistency, Projections

• Materialized View Pattern: https://docs.microsoft.com/en-us/azure/architecture/patterns/materialized-view
• Projection Building Blocks: What you'll need to build projections, by Barry O Sullivan: https://dev.to/barryosull/projection-building-blocks-what-youll-need-to-build-projections--5g1n
• Managing Projectors is harder than you think, by Barry O Sullivan: https://dev.to/barryosull/managing-projectors-is-harder-than-you-think-2mf
• Polyglot Data, talk by Greg Young: https://www.youtube.com/watch?v=hv2dKtPq0ME&t=24m55s

Messaging and some other stuff

• Race conditions don't exist: http://udidahan.com/2010/08/31/race-conditions-dont-exist/
• Background tasks with hosted services in ASP.NET Core: https://docs.microsoft.com/en-us/aspnet/core/fundamentals/host/hosted-services?view=aspnetcore-3.0&tabs=visual-studio
• ASP.NET Core - Background Service, by Bruno Brito (PT-BR): https://www.brunobrito.net.br/aspnet-core-background-services/
• ASP.NET Core & Microsservices - Event Sourcing w/ Background Services and RabbitMQ (PT-BR): https://www.brunobrito.net.br/asp-net-core-event-sourcing-microsservicos-background-services-rabbit/