forum

README

Project Architecture

The application follows a Clean Architecture design.

---

Design Principles

The architecture is structured around the following core principles:

1. Separation of Concerns
   Each component is responsible for a single, well-defined aspect of the system. This improves maintainability and readability by reducing coupling between unrelated functionality.

2. Dependency Inversion
   The design enforces a hierarchical dependency flow. Higher-level layers depend on abstractions (interfaces) defined by lower-level (inner) layers rather than concrete implementations. This allows for easier testing, flexibility, and substitution of infrastructure details without affecting core business logic.

---

Layers Overview

The architecture is divided into three main layers, organized from the most fundamental (inner) to the most implementation-specific (outer):

---

1. Domain Layer

Purpose:
Contains the core business entities and models that define the fundamental concepts of the system.

Characteristics:

• Does not depend on any other layer.
• Contains only pure business rules and data structures.
• No external dependencies.

Examples of Entities:

• UserModel
• PostModel
• Other domain-specific structs or classes.

---

k

2. Application Layer

Purpose:
Defines all the use cases and application-specific operations. This is where business workflows are implemented by orchestrating the entities from the Domain layer.

Characteristics:

• Depends only on the Domain layer.
• Contains application logic and use case definitions.
• Does not include infrastructure concerns such as frameworks or databases.

Examples of Use Cases:

• Creating, updating, or deleting posts (CRUD operations)
• User registration or authentication logic.

---

3. Infrastructure Layer

Purpose:
Connects the application to external resources and delivery mechanisms, such as web servers, databases, file systems, or APIs.

Characteristics:

• Depends on the Application layer to invoke business workflows.
• Implements interfaces defined in inner layers to fulfill dependencies.
• Contains adapters, frameworks, and runtime infrastructure.

Examples of Responsibilities:

• HTTP handlers and request routing
• Dependency injection setup
• Database repositories
• Server configuration.

---