Quite opposite really and really enjoy practicing and applying CQRS principals at scale. Provide guidance to engineering teams during implementation and deployment. Proactively set up reviews for design and code. domain driven design and hexagonal architecture. Sarp Architecture - a pragmatic C example, not as 'pure' a DDD approach perhaps due to its lack of a real domain problem, but still a nice clean approach. Drive system design using standard practices & patterns viz. Evans' book, there is Domain Driven Design Quickly that I usually buy copies for for friends:Įdit: I am not a DDD hater. dddps - Tim McCarthys sample C app for his book. Create template Templates let you quickly answer FAQs or store snippets for re-use. PS, to save you from falling asleep reading Mr. Using Domain-Driven Design(DDD)in Golang Steven Victor Feb 22 20 7 min read. If you flood it with 50 domain objects, 19 aggregates, 40 value objects, 70 specifications, and 5 modules - it is no longer easy to follow.ĭDD, while needed in OOO languages, tends to have an adverse effect in Go where things end up being more complicated with object graphs of several structs and aggregates - when you could have just wrote a single func that took parameters and returned an error. The best packages are those that the API is self explanatory. Keep a close eye on your exported API to make sure it makes sense to others. Just do the minimal and keep things decoupled in your same package for easier testing.
#DOMAIN DRIVEN DESIGN GOLANG SOFTWARE#
Struct alignment for CPU cache optimizations, lower memory graphs, stack vs heap, etc.Īfter a solid 3 years in Go, there's very little DDD I use these days as I found the code I wrote less efficient and harder for other people to read. Domain-Driven Design: Tackling Complexity in the Heart of Software by Eric Evans Publisher: Addison-Wesley ISBN: 1-5 Google book search link This book provides a broad framework for making design decisions and a technical vocabulary for discussing domain design.
and that is where I wasted months of time and effort.Īfter reading what seems like 100s of articles and golang group messages from the developers of Go, I came to realize I was doing it all wrong. Since then, the application has been ported to other languages such as C and Ruby. The purpose was to showcase the concepts from DDD in a real-world application. NET for 12 years, where I practiced DDD, BDD, TDD and most recently CQRS and MicroServices for many many years, when I switched to Go in 2014 I immediately went down the path of DDD and CQRS with strong OOO. Go microservice tutorial project using Domain Driven Design and Onion Architecture Other redditors mentioned some good resources, Im going to shamelessly plug mine as well either way after you are done with whatever tutorial you use I recommend you to look at the Exposure Notifications Server, reading the source code should help you learn. In 2008, Citerus developed a Java sample application in close collaboration with Eric Evans, based on the examples in his book. Import "/go/xxxx/internal/base"įunc CreateRealm(id base.Coming from. base contains common elements used by all modules I love software books that are both old and still-relevant. Chapter 2 talks in detail about how a domain is divided into Bounded Contexts and Chapter 3 is the best source on drawing context maps. To give a brief and superficial summary, the strategic design is the one in which you and the domain experts analyze a domain, define its bounded contexts, and look for the best way to let them communicate. Following are some example methods, but I'm very uncertain which method to GO with.Įxcerpt of the project structure: ├── api/Ĭommon for all methods: package realm // import "/go/xxxx/internal/modules/realm/domain/realm" Vaughn Vernons Implementing Domain-Driven Design focuses on strategic design from the outset. How Golang helps with the strategic design As some of you may already know, Domain-Driven Design is composed of two different sides, the strategic and the tactical one.
When I try to apply its concepts to my Go project I've encountered some obstacles.
#DOMAIN DRIVEN DESIGN GOLANG FULL#
I've been studying domain-driven design lately and must say this type of architectural design triggers something in me. Borrows the event driven modelling focus of most Domain Driven Design thinking, without committing to the full CQRS/ES journey that usually accomanpanies DDD discussion online Avoids Javaisms, and is (hopefully) a bit closer to Golang (i.e.