Clean Architecture using Go

Presentation about Clean Architecture in Golang
Based on the post https://medium.com/@eminetto/clean-architecture-using-golang-b63587aa5e3f

Transcript

1. Clean Architecture using Go Elton Minetto @eminetto
2. What is Clean Architecture? • https://8thlight.com/blog/uncle-bob/ 2012/08/13/the-clean-architecture.html • https://www.amazon.com/Clean-Architecture- Craftsmans-Software-Structure/dp/ 0134494164
3. Constraints • Independent of Frameworks • Testable • Independent of UI • Independent of Database • Independent of any external agent
4. Divide our code in 4 layers
5. • Entities: encapsulate enterprise wide business rules. An entity in Go is a set of data structures and functions. • Use Cases: the software in this layer contains application specific business rules. It encapsulates and implements all of the use cases of the system.
6. • Controller: a set of adapters that convert data from the format most convenient for the use cases and entities, to the format most convenient for some external agency such as the Database or the Web • Framework & Driver: this layer is generally composed of frameworks and tools such as the Database, the Web Framework, etc
7. Clean architecture using Go
9. The package entity contains our entities
11. In the package user we can find the other layers of our architecture
13. In the file interface.go we have the interfaces of Use Case and a repository, that will store our entities.
15. In the files repository_inmem.go and repository_mongodb.go we have two implementations of repository interface. The repository represents the layer Framework & Driver
17. In service.go we have the implementation of Use Case
19. The package api implements the Controller layer
21. In the following snippet, from api/main.go, we can see how to use the service
23. Now we can add other controllers, like a CLI app, lambda functions, bots, and so on.
24. And we can test our packages, layer by layer
25. pkg/user/service_test.go
27. api/handler/user_test.go
29. Example https://github.com/eminetto/clean- architecture-go
30. https://eltonminetto.dev @eminetto