Why Should You Use Clean Architecture?

2025-02-16

Clean Architecture follows three simple ideas:

1. The direction of dependencies is toward the center.
2. The core contains the domain entities and business rules.
3. The core should be independent of any external concerns.

What do we get from this? The two main qualities are Stability and Testability. The business rules are stable—things around them can change without affecting them. Depending on abstractions makes it easier to unit-test use cases. You don’t need a name for the architecture when you understand the idea.

Learn more: Practical .NET and Software Architecture Tips

Practical Commands and Codes for Clean Architecture Implementation

To implement Clean Architecture in a .NET project, you can use the following commands and code snippets:

1. Create a .NET Core Solution:

dotnet new sln -n CleanArchitectureDemo

2. Add Projects for Layers:

dotnet new classlib -n Core
dotnet new classlib -n Infrastructure
dotnet new webapi -n Api

3. Add Projects to Solution:

dotnet sln add Core
dotnet sln add Infrastructure
dotnet sln add Api

4. Add Dependencies:

cd Api
dotnet add reference ../Core
dotnet add reference ../Infrastructure
cd ../Infrastructure
dotnet add reference ../Core

5. Example of a Core Entity:

namespace Core.Entities
{
public class Product
{
public int Id { get; set; }
public string Name { get; set; }
public decimal Price { get; set; }
}
}

6. Example of a Repository Interface in Core:

namespace Core.Interfaces
{
public interface IProductRepository
{
Task<Product> GetProductByIdAsync(int id);
Task<IReadOnlyList<Product>> GetProductsAsync();
}
}

7. Implementing the Repository in Infrastructure:

namespace Infrastructure.Data
{
public class ProductRepository : IProductRepository
{
private readonly StoreContext _context;
public ProductRepository(StoreContext context)
{
_context = context;
}

public async Task<Product> GetProductByIdAsync(int id)
{
return await _context.Products.FindAsync(id);
}

public async Task<IReadOnlyList<Product>> GetProductsAsync()
{
return await _context.Products.ToListAsync();
}
}
}

8. Dependency Injection in Startup.cs:

public void ConfigureServices(IServiceCollection services)
{
services.AddScoped<IProductRepository, ProductRepository>();
services.AddDbContext<StoreContext>(options =>
options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));
services.AddControllers();
}

What Undercode Say

Clean Architecture is a powerful design philosophy that promotes stability, testability, and maintainability in software development. By ensuring that the core business logic is independent of external concerns, developers can create systems that are resilient to changes in the external environment. This architecture is particularly beneficial in large-scale applications where the business rules are complex and subject to frequent changes.

To further enhance your understanding and implementation of Clean Architecture, consider exploring the following Linux and Windows commands that can aid in your development process:

1. Linux Commands:

• grep: Search for specific patterns in files.

  grep -r "Product" .
  

• find: Locate files and directories.

  find . -name "*.cs"
  

• tar: Archive files.

  tar -czvf project.tar.gz CleanArchitectureDemo
  

2. Windows Commands:

• dir: List directory contents.
  [cmd]
  dir /s /p
  [/cmd]
• xcopy: Copy files and directories.
  [cmd]
  xcopy CleanArchitectureDemo Backup /E /H /C /I
  [/cmd]
• tasklist: Display running processes.
  [cmd]
  tasklist /FI “IMAGENAME eq dotnet.exe”
  [/cmd]

For more advanced topics and practical examples, refer to the following resources:
– Microsoft Documentation on .NET Architecture
– Clean Architecture by Robert C. Martin

By integrating these commands and practices into your workflow, you can streamline your development process and build robust, maintainable applications that adhere to the principles of Clean Architecture.

References:

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