Onion model in asp.net core

Onion model in asp.net core

QA_DataAccess[Class Library Folder]

Package

• "Microsoft.EntityFrameworkCore.Design" Version="5.0.0"

• BaseEntity.cs

  using System;

  using System.Collections.Generic;

  using System.Linq;

  using System.Text;

  using System.Threading.Tasks;

  
  

  namespace QA_DataAccess

  {

     public class BaseEntity

      {

          public int Id { get; set; }

      }

  }

  
  

  Product.cs

  using System;

  using System.Collections.Generic;

  using System.Linq;

  using System.Text;

  using System.Threading.Tasks;

  
  

  namespace QA_DataAccess

  {

     public class Product : BaseEntity

      {

          public string Name { get; set; }

          public string Details { get; set; }

          public int StockAvailable { get; set; }

      }

  }

QA_Repository[Class Library Folder]

Package

"Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="5.0.0" 

ApplicationDbContext.cs

using Microsoft.AspNetCore.Identity.EntityFrameworkCore;

using Microsoft.EntityFrameworkCore;

using QA_DataAccess;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace QA.Repository

{

   public class ApplicationDbContext : IdentityDbContext

    {

        //Ctor 2Tab to Generate Constructor

        public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)

        {

        }

        public DbSet<Product> Products { get; set; }

    }

}

IRepository.cs

using QA_DataAccess;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace QA.Repository

{

    //IRepository is Inherited with T Class 

    public interface IRepository<T> where T : BaseEntity

    {

        IEnumerable<T> GetAll();

        T GetById(int Id);

    }

}

Repository.cs

using Microsoft.EntityFrameworkCore;

using QA_DataAccess;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace QA.Repository

{

    //Repository is Inherited with the IRepository of T

    public class Repository<T> : IRepository<T> where T : BaseEntity

    {

        //Generate constructor of ApplicationDbContext

        private readonly ApplicationDbContext _context;

        private readonly DbSet<T> entity;

        public Repository(ApplicationDbContext context)

        {

            _context = context;

            entity = _context.Set<T>();

        }

        //Generate Implemented Interface of IRepository

        public IEnumerable<T> GetAll()

        {

            return entity.AsEnumerable();

        }

        public T GetById(int Id)

        {

            return entity.FirstOrDefault(x => x.Id == Id);

        }

    }

}

QA_Service[Class Library Folder]

IProductRepo.cs

using QA_DataAccess;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace QA.Service

{

   public interface IProductRepo

    {

        IEnumerable<Product> GetAllProduct();

        Product GetProductById(int Id);

    }

}

ProductRepo.cs

using QA.Repository;

using QA_DataAccess;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace QA.Service

{

    //ProductRepo is Inherited with IProductRepo

    

    public class ProductRepo : IProductRepo

    {

        private IRepository<Product> _repository;

        //Generate implement Interface

        public ProductRepo(IRepository<Product> repository)

        {

            _repository = repository;

        }

        public IEnumerable<Product> GetAllProduct()

        {

            return _repository.GetAll();

        }

        public Product GetProductById(int Id)

        {

            return _repository.GetById(Id);

        }

    }

}

QA_WebAPI[Class Library Folder]

Package

• "Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="5.0.0" 
• "Microsoft.EntityFrameworkCore.SqlServer" Version="5.0.0"
• "Microsoft.EntityFrameworkCore.Tools" Version="5.0.0"

Controllers[Folder]

HomeController.cs

using Microsoft.AspNetCore.Mvc;

using QA.Service;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

namespace QA.WebAPI.Controllers

{

    public class HomeController : Controller

    {

        //IProductRepo come from startup.cs file

        //Generate Constructor of IProductRepo

        private readonly IProductRepo _repo;

        public HomeController(IProductRepo repo)

        {

            _repo = repo;

        }

        [HttpGet]

        public IActionResult GetProducts()

        {

            var products = _repo.GetAllProduct();

            return View(products);

        }

    }

}

appsettings.json

{

  "ConnectionStrings": {

    "DefaultConnection": "Server=CHETUIWK1689\\MSSQL2019;Database=OADatabase;Trusted_Connection=True;MultipleActiveResultSets=True"

  },

  "Logging": {

    "LogLevel": {

      "Default": "Information",

      "Microsoft": "Warning",

      "Microsoft.Hosting.Lifetime": "Information"

    }

  },

  "AllowedHosts": "*"

}

Startup.cs

using Microsoft.AspNetCore.Builder;

using Microsoft.AspNetCore.Hosting;

using Microsoft.AspNetCore.Mvc;

using Microsoft.EntityFrameworkCore;

using Microsoft.Extensions.Configuration;

using Microsoft.Extensions.DependencyInjection;

using Microsoft.Extensions.Hosting;

using Microsoft.Extensions.Logging;

using Microsoft.OpenApi.Models;

using QA.Repository;

using QA.Service;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

namespace QA.WebAPI

{

    public class Startup

    {

        public Startup(IConfiguration configuration)

        {

            Configuration = configuration;

        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.

        public void ConfigureServices(IServiceCollection services)

        {

            services.AddControllers();

            services.AddDbContext<ApplicationDbContext>

                (Options => Options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection"),

             b => b.MigrationsAssembly("QA_Repository")

                ));

            //Add some Dependency Injection

            services.AddTransient(typeof(IRepository<>), typeof(Repository<>));

            services.AddTransient<IProductRepo, ProductRepo>();

            //services.AddSwaggerGen(c =>

            //{

            //    c.SwaggerDoc("v1", new OpenApiInfo { Title = "QA_WebAPI", Version = "v1" });

            //});

        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)

        {

            if (env.IsDevelopment())

            {

                app.UseDeveloperExceptionPage();

                //app.UseSwagger();

                //app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "QA_WebAPI v1"));

            }

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>

            {

                endpoints.MapControllers();

            });

        }

    }

}