Awesome
ARCHITECTURE
This project is an example of architecture using new technologies and best practices.
The goal is to learn and share knowledge and use it as reference for new projects.
PRINCIPLES and PATTERNS
- Clean Architecture
- Clean Code
- SOLID Principles
- KISS Principle
- DRY Principle
- Fail Fast Principle
- Common Closure Principle
- Common Reuse Principle
- Acyclic Dependencies Principle
- Mediator Pattern
- Result Pattern
- Folder-by-Feature Structure
- Separation of Concerns
BENEFITS
- Simple and evolutionary architecture.
- Standardized and centralized flow for validation, log, security, return, etc.
- Avoid cyclical references.
- Avoid unnecessary dependency injection.
- Segregation by feature instead of technical type.
- Single responsibility for each request and response.
- Simplicity of unit testing.
TECHNOLOGIES
RUN
<details> <summary>Command Line</summary>Prerequisites
Steps
- Open directory source\Web\Frontend in command line and execute npm run restore.
- Open directory source\Web in command line and execute dotnet run.
- Open https://localhost:8090.
Prerequisites
Steps
- Open directory source\Web\Frontend in command line and execute npm run restore.
- Open source directory in Visual Studio Code.
- Press F5.
Prerequisites
Steps
- Open directory source\Web\Frontend in command line and execute npm run restore.
- Open source\Architecture.sln in Visual Studio.
- Set Architecture.Web as startup project.
- Press F5.
Prerequisites
Steps
- Execute docker compose up --detach --build --force-recreate --remove-orphans.
- Open http://localhost:8090.
PACKAGES
Source: https://github.com/rafaelfgx/DotNetCore
Published: https://www.nuget.org/profiles/rafaelfgx
LAYERS
Web: Frontend and Backend.
Application: Flow control.
Domain: Business rules and domain logic.
Model: Data transfer objects.
Database: Data persistence.
WEB
FRONTEND
Service
It is the interface between frontend and backend and has logic that does not belong in components.
Guard
It validates if a route can be activated.
ErrorHandler
It provides a hook for centralized exception handling.
HttpInterceptor
It intercepts and handles an HttpRequest or HttpResponse.
BACKEND
Controller
It has no any logic, business rules or dependencies other than mediator.
APPLICATION
It has only business flow, not business rules.
Request
It has properties representing the request.
Request Validator
It has rules for validating the request.
Response
It has properties representing the response.
Handler
It is responsible for the business flow and processing a request to return a response.
It call factories, repositories, unit of work, services or mediator, but it has no business rules.
Factory
It creates a complex object.
Any change to object affects compile time rather than runtime.
DOMAIN
It has no any references to any layer.
It has aggregates, entities, value objects and services.
Aggregate
It defines a consistency boundary around one or more entities.
The purpose is to model transactional invariants.
One entity in an aggregate is the root, any other entities in the aggregate are children of the root.
Entity
It has unique identity. Identity may span multiple bounded contexts and may endure beyond the lifetime.
Changing properties is only allowed through internal business methods in the entity, not through direct access to the properties.
Value Object
It has no identity and it is immutable.
It is defined only by the values of its properties.
To update a value object, you must create a new instance to replace the old one.
It can have methods that encapsulate domain logic, but these methods must have no side effects on the state.
Services
It performs domain operations and business rules.
It is stateless and has no operations that are not a part of an entity or value object.
MODEL
It has properties to transport and return data.
DATABASE
It encapsulates data persistence.
Context
It configures the connection and represents the database.
Entity Configuration
It configures the entity and its properties in the database.
Repository
It inherits from the generic repository and only implements specific methods.