Questions tagged [clean-architecture]
Clean Architecture is a book by Robert C. Martin that contains solutions to architecting software solutions. Collectively these concepts are referred to as "Clean Architecture".
219
questions
1
vote
0
answers
19
views
Should input adapters receive the domain model?
This article on Medium addresses the scopes of the domain model in hexagonal architecture.
I have sketched the following generic hexagonal architecture:
On the one hand, the secondary/output adapter ...
- 11
0
votes
2
answers
119
views
Clean Architecture with Microservices
I'm fairly new at system architecting and I'm looking for some advice. My company is revamping its order management system. Currently is a monolith system that scales very poorly and is difficult for ...
0
votes
1
answer
59
views
Designing Clean Architecture(Hexagonal) for a Spring Boot Application : Project Layout and Class Organization
I'm currently in the process of integrating Clean Architecture into my Spring Boot project and I'm seeking advice on the ideal project structure and the types of classes and projects that should be ...
1
vote
1
answer
49
views
UI or Application layer responsibility - retrieving additional data for display
I have an application service that retrieves Order data. The service is consumed in UI, where it can be edited by users.
Additionally, the users wants to see related data such as ordered products' ...
- 141
0
votes
1
answer
79
views
Clean architecture for file upload in a flutter app
I have started a flutter app and want to apply clean architecture to it. The first use case i have is the following:
A user provides file(s)via "open file" dialogue. The provided files ...
- 348
2
votes
2
answers
201
views
hexagonal architecture vs clean architecutre
I am trying to improve the architecture for my React app project that has grown in size lately.
I'm looking at Hexagonal architecture and Clean architecture, and I couldn't really see the difference ...
- 21
0
votes
2
answers
185
views
Clean Architecture: Loading data for the domain layer
Let's say my domain has a User Entity that has a many to many relationship with itself representing "Friends"
public class User
{
public int Id;
public IEnumerable<User>? ...
- 119
0
votes
3
answers
127
views
Can the application layer extend the domain models?
I write BFF (Backend For Frontend) and it's domain is to provide user info and microservices integration.
The User domain model looks like below:
public class User
{
public required Guid Id { get; ...
- 111
0
votes
2
answers
113
views
Domain Project and Identity Project circular dependency
I am currently working on implementing the Clean Architecture pattern using Entity Framework. However, I've encountered an issue related to the design of my Domain project. In this project, I need to ...
0
votes
1
answer
144
views
Clean architecture - how to manage use cases that depends on external apis
How to apply clean architecture concepts in a software that depends on External APIs.
Example:
A business that offers some kind of subscription to its users.
Its convinient to store some subscription ...
- 11
0
votes
1
answer
65
views
Communicating unpredicted Failure from Repository implementation to Applicaiton Layer
My application follows Clean Architecture wherein the Application Layer wraps the Domain Layer. I try to adhere to DDD more-so as a "guiding light" than a strict rulebook.
Within the Domain ...
- 163
9
votes
4
answers
3k
views
Is it okay to have misleading struct and function names for the sake of encapsulation?
I'm writing this library in which the user can provide custom code defining the algorithm used for finding an optimal solution. In the papers that I have read, the targeted user thinks in terms of ...
- 271
0
votes
3
answers
519
views
Clean Architecture and Access Control
I'm working on a .Net core API for product configuration and ordering. The ticket for Permissions has come up and I've been tasked with developing a solution, ideas of middleware have been mentioned.
...
- 103
-1
votes
1
answer
78
views
Split or join two use cases that are similar in Clean Architecture
In my working project I have a CustomerRegisterUseCase, that has following steps:
validate email is already in use;
hash password;
save customer in temporary table(tranfered to customer table after ...
- 101
1
vote
1
answer
148
views
deciding where to put "formatting" logic - database or in application layer
We have an application that fetches user data from an Azure tenant via MS Graph. We need to distinguish between guests and regular members.
Guests come back with Usernames that look like this:
...
- 531
1
vote
2
answers
559
views
Where to place a common database connection in clean architecture?
I am currently trying to follow the clean architecture approach but i wonder where common things like a database connections should take place.
Since i think a database connection usually will be ...
- 348
0
votes
0
answers
77
views
Access one usecase into another usecase
I am working on machine learning project. I use jupyter for quick prototying. Now I am trying to convert it into concrete python project using clean architecture.
entities/
- problem.py # ...
- 101
2
votes
1
answer
824
views
Clean Architecture Use Case and db transactions/unit of work
I've started working on a LoB application (as a learning exercise) while trying to express business logic with use cases from Clean Architecture. First use case is customer onboarding where client can ...
- 21
1
vote
1
answer
768
views
Build a Rust project using Clean architecture and DB transactions in the same DDD bounded context
This is just an example of an (still incomplete) real-world project written in Rust using a clean architecture: https://github.com/frederikhors/rust-clean-architecture-with-db-transactions.
Goals
My ...
- 121
0
votes
1
answer
197
views
Decoupling modules of a monolith
As part of an migration from .NET Framework to .NET Core we're looking to decouple elements of our monolith into more manageable modules. Ideally following a clean architecture/DDD/microservice ...
- 103
0
votes
1
answer
198
views
Separating Application (Business Logic) Layer to Multiple Module Layers in Clean Architecture
Currently, I'm designing the Project based on Clean Architecture composing with 4 layers:
Domain
Application
Infrastructure
Presentation
Since the project is pretty huge, I'm now considering to ...
- 125
1
vote
1
answer
366
views
Is it normal to use multiple repositories in one viewmodel?
Does it violating any conventions? Is it acceptable by MVVM? I have to separate the local data repository and online repository, but for login I have to use multiple repositories for getting response ...
- 21
0
votes
1
answer
655
views
DDD - How to avoid validation rule duplication
From what I understand of DDD, my entities and value objects should be able to enforce its own invariants, meaning that its constructors will check for nulls, must contains numbers and letters, ...
2
votes
1
answer
272
views
How to restrict the construction of a domain object to an external service?
I have this object
RelativeFoo{int relativeCode, Origin relativeTo}
And I want to map it to this other object
AbsoluteFoo{int absoluteCode}
In order to do this, I need to use a service whose ...
0
votes
1
answer
185
views
Domain Modeling / Architecture
I'm experimenting with some projects at the moment and I am stuck trying to decide on the correct approach to this question.
Given a simple architecture like this consisting of
Domain - (Person and ...
2
votes
1
answer
410
views
How much logic can the infrastructure level hold in Clean Architecture
I am trying to wrap my head around the concepts of Clean Architecture, and specifically about the responsibility of the Infrastructure layer. Its purpose is often described as "to provide ...
- 29
2
votes
1
answer
576
views
In Clean Architecture, how do we name UseCases that get more and more specific without the names becoming too long?
All the examples of Clean Architecture that I see have very simple use cases, such as:
OpenAccountUseCase
DepositMoneyUseCase
However, real world applications have much more complex logic.
Let's say ...
- 935
1
vote
0
answers
141
views
Typescript Clean Architecture: How to tackle use case that needs multiple repositories?
I am implementing clean architecture in my new back-end project and getting stuck with a particular use case.
I have a CreatePhysicianUseCase what is responsible for creating a new physician user in ...
- 129
0
votes
0
answers
395
views
How to pass the entity's domain to the repository layer - clean architecture and spring JPA
According to Should I use a layer between service and repository for a clean architecture - Spring the Peristance layer is deprecated because the Repository is already an abstraction.
UML solution of ...
- 101
0
votes
3
answers
200
views
Is Microservices a means of implementing Clean Architecture through technological constraints, just way more expensive?
I spend a lot of time lately talking about Microservices architecture and I have a really hard time buying all the benefits that are sold to me. For most arguments I hear I come to the conclusion that ...
- 264
1
vote
0
answers
202
views
Angular standalone components architecture
I am trying to understand the benefits/gains of using standalone components in a real project that my team and myself included are working on, and from my very humble point of view, I just can't see ...
- 119
0
votes
0
answers
300
views
Where/how does the conversion of entity objects to data transfer objects take place in Clean Architecture?
Prolog:
I have a domain-layer which contains some entity-classes like Customer.
I have a application-layer which contains some data transfer object classes like CustomerDto.
My Problem:
At a presenter ...
- 21
-1
votes
1
answer
176
views
Do usecase-class work with domain-model or data-model at cleanarchitecture?
I interessted in the "usecases" and "how they interacts with the "context" at "clean architecture".
If I understand right, there will be two contexts.
First is the ...
- 21
0
votes
1
answer
413
views
Clean Architecture : Application State
Given the following design from clean architecture in which layer would you put overall application state?
In each state a subset of use cases are allowed to be invoked. For example if application is ...
- 9
1
vote
2
answers
830
views
Help implementing call to external API and store summary in my database in hexagonal architecture with DDD
Good afternoon.
My situation is this:
I have to call an external API to create some data and store it there, but I want to have a summary of that data in my own database. I have my use case that ...
- 19
0
votes
2
answers
188
views
How to design software architecture without solid requirements?
I am working on a project which does not have solid requirements, All is we have meetings with all the teams across and confluence pages. No one owns any requirements and it just float around ...
- 141
1
vote
0
answers
436
views
On which layer of Clean Architecture hierarchy must be the entities with application-specific properties?
From the answer to Must the use cases extend the entities in Clean Architecture? I have known that the use cases must NOT extend the entities. It's fine, but what do I have to do with the properties ...
0
votes
0
answers
183
views
Why the "Use Cases" and "Request and Response Models" are the different sections of the "Business rules" chapter?
From the answers on "Which Clean Architecture Areas do Gateways interfaces and their implementations belong to?" question I knew that gateways interfaces (well, the gateways are the ...
0
votes
0
answers
267
views
How to implement repository in clean architecture
I need to rewrite my project due to many underlying issues causing errors and I started following clean architecture by Uncle Bob (I read the book).
I created my domain, infrastructure, application ...
- 129
0
votes
0
answers
78
views
From the ECB & DAL perspectives, is this design acceptable?
I've been recently trying to go slightly further in arch. patterns (specifically layered arch.). I decided to go though an old project of mine (a CLI-based cinema reservation system) and evaluate my ...
- 149
1
vote
2
answers
236
views
Where to save entity metadata in a Ports-And-Adapters Architecture
I’m using a hexagonal/clean/ports-and-adapter architecture. For the sake of simplicity, I’ll only talk about domain and infrastructure here, where the infrastructure has dependencies on the domain but ...
- 651
1
vote
1
answer
1k
views
Must the use cases extend the entities in Clean Architecture?
Currently I don't understand the Use case concept enough good - too much abstract definitions but no particular examples. The section Use Cases of Chapter 20 Business Rules does not including any code ...
0
votes
2
answers
627
views
Which Clean Architecture Areas do Gateways interfaces and their implementations belong to?
Talking about gateways from the Clean Architecture, it is required to distinguish:
The interfaces
The implementation of these interfaces
The TypeScript example:
// === Interface =====================...
0
votes
2
answers
279
views
Making a Data Layer that is tightly coupled to the Presentation Layer in Clean Architecture
So I've got a simple object recognition app in iOS. I am trying to create an Interface-Adapter for the machine learning / computer vision like this:
protocol MachineLearningInterface {
func ...
-2
votes
1
answer
197
views
Is it OK to use a Command Sourcing instead of Event Sourcing? Replay events in Commands-Repositories
I have a system that uses a graph database without any ORM, mapper or tool that tracks entity changes, like EntityFramework. I'm not using domain entities, instead I have an Event that calls changes ...
- 97
0
votes
2
answers
884
views
Is it okay for an Interface Adapter / Repository / Gateway to use Entities in its implementation
I've got these classes:
enum Environment {
case staging
case production
static func current() -> Environment {
#if STAGING
return .staging
#elseif PROD
...
3
votes
1
answer
87
views
High level abstraction of file scanning service in domain driven design, and the implementations
My domain requires that a Resource (ubiquitous language for a singular unit of data to be moved - commonly a file or folder) can only be moved if it has been Scanned to ensure it does not contain any ...
1
vote
0
answers
166
views
Business rule or repository implementation rule in Clean Architecture
I'm studying Clean Architecture with python and got into this "problem" of choosing where to implement a rule (that I considered a Business Rule, maybe I'm wrong)
I have 2 Entities
@...
1
vote
6
answers
1k
views
TDD: testing an abstract class. Test all concrete classes or create mock sub-class to test the behavior?
Well, I'm developing a personal project using TDD and Clean Architecture, and I chose to build an abstract class to gather all use-cases behavior in one single class. My question is: What you think ...
- 129
0
votes
1
answer
527
views
Clean Architecture for React App: Component / View / Page
Abstract
I'm trying to figure out a solid, scalable, clean and practical architecture for react projects.
As a a playground I have a project with two Screen and a JSON server.
When I try to apply a ...
- 207