None of the constructors found with 'Autofac.Core.Activators .Reflection.DefaultConstructorFinder' on type

I m developing a plugin with data base acess and AJAX Request

I registered my service using an interface that is located in my own plugin project.

Controller

namespace Nop.Plugin.Widgets.Samurai.Controller
{
    [Authorize]
    public class SamuraiDataBaseMigrationController : BasePluginController
    {
        private readonly SamuraiDataService _service;

        public SamuraiDataBaseMigrationController(SamuraiDataService service)
        {
            _service = service;
        }

        [HttpPost]
        public ActionResult AdicionarAoMigrate([FromBody] ProductInfoModel data)
        {
            _service.ArmazenarDados(data.ProductName, data.ProductPrice);
            return Json(new { success = true, message = "Informações do produto migradas com sucesso!" });
        }


    }

}

Migration

 public class SamuraiMigration : AutoReversingMigration
 {
   
     public override void Up()
     {
         if (!DataSettingsManager.IsDatabaseInstalled())
             return;

        //Cria a tabela com o nome ProductInfo e adiciona duas colunas, uma sendo do nome do produto e outra para preços

         Create.Table("ProductsInfo")
        .WithColumn("ProductName").AsString(256).NotNullable()
        .WithColumn("ProductPrice").AsDecimal().NotNullable();   
       
     }

     

 }

Service

namespace Nop.Plugin.Widgets.Samurai.Services
{
    public interface ISamuraiDataService
    {
        void ArmazenarDados(string productname, float productprice);
    }

    public class SamuraiDataService : ISamuraiDataService
    {
        private readonly IDataContext _dataContext;

        public SamuraiDataService(IDataContext dataContext)
        {
            _dataContext = dataContext;
        }

        public void ArmazenarDados(string productname, float productprice)
        {
            var newRegister = new ProductInfoModel
            {
                ProductName = productname,
                ProductPrice = productprice
            };

            _dataContext.Insert(newRegister);
        }

    }
}

NopServices

namespace Nop.Plugin.Widgets.Samurai.Infrastructure
{
    public class NopStartup : INopStartup
    {
        public int Order => 2000;
        public void ConfigureServices(IServiceCollection services, IConfiguration configuration)
        {
            services.AddScoped<SamuraiMigration>();
            services.AddScoped<SamuraiDataBaseMigrationController>();
            services.AddScoped<SamuraiDataService>();
        }
        public void Configure(IApplicationBuilder application)
        {
            //nothing
        }
    }
}

Ajax Request

  <div class="add-to-migrate-button">
    <button class="add-to-migrate" id="add-to-migrate" type="button">ADD TO BASE</button>
  </div>

  <script>
    $(document).ready(function () {
      $("#add-to-migrate").click(function () {
        var ProductName = $(".product-name").text();
        var ProductPrice = parseFloat($(".product-price").text().replace(/[^\d.-]/g, ''));
        console.log("URL:", '@Url.RouteUrl("AdicionarAoMigrate")');
        


        armazenarDadosNoBanco(ProductName, ProductPrice);
      });

      function armazenarDadosNoBanco(ProductName, ProductPrice) {
        $.ajax({
          url: '@Url.RouteUrl("AdicionarAoMigrate")',
          cache: false,
          type: "POST",
          dataType: "json",
          contentType: "application/json",
          data: JSON.stringify({
            ProductName: ProductName,
            ProductPrice: ProductPrice
          }),
          success: function (data) {
            console.info("Successful data migration")
          },
          error: function (xhr, status, error) {
            console.error("AJAX request error:", error);
            console.error("Status:", status);
            console.error("Response:", xhr.responseText);
          }
          
        });
      }
    });
  </script>
}

JoaoBahia wrote:

What version of nopCommerce ?
Typically the form of AddScoped code in the Startup is

            services.AddScoped<ISamuraiDataService, SamuraiDataService>();

Hello, my friend. Thanks for your attencion, the version of nopCommerce is 4.60.5. After adding your recommendation, the error persists: Autofac.Core.DependencyResolutionException: An exception was thrown while activating Nop.Plugin.Widgets.Samurai.Controller.SamuraiDataBaseMigrationController.
---> Autofac.Core.DependencyResolutionException: None of the constructors found with 'Autofac.Core.Activators.Reflection.DefaultConstructorFinder' on type 'Nop.Plugin.Widgets.Samurai.Controller.SamuraiDataBaseMigrationController' can be invoked with the available services and parameters:
Cannot resolve parameter 'Nop.Plugin.Widgets.Samurai.Services.SamuraiDataService service' of constructor 'Void .ctor(Nop.Plugin.Widgets.Samurai.Services.SamuraiDataService)'.

I believe that you should check nopCommerce plugins that have used Migration to better understand code flow or check this page on their documentation website because this one has a clear view to the solution of your problem.

Best regards,
Atul

Thank you for your attention!

you can check
Nop.Plugin.Shipping.FixedByWeightByTotal plugin Migrations folder
there you will find the implementation of AutoReversingMigration & Migration class.
//Rashed

I've now updated the migration class, but the error still persists, I've also updated the dependency injection code

namespace Nop.Plugin.Widgets.Samurai.DataBase
{
    [NopMigration("2024-01-23 17:00:00", "Widgets.Samurai base schema", MigrationProcessType.Installation)]
    public class SamuraiMigration : AutoReversingMigration
    {
      
        public override void Up()
        {
            Create.TableFor<ProductInfoModel>();
          
        }

        

    }
}

 public class NopStartup : INopStartup
 {
     public int Order => 3000;
     public void ConfigureServices(IServiceCollection services, IConfiguration configuration)
     {
        
         services.AddScoped<ISamuraiDataService, SamuraiDataService>();
     }
     public void Configure(IApplicationBuilder application)
     {
         //nothing
     }
 }

Can you share a code example of this SamuraiDataBaseMigrationController. what do you want to do here?
//Rashed

The intention of this plugin is to receive the name and price of a product from the products view of my nopcommerce store, through an ajax request to my controller, and within the controller it migrates the name and price to a table in the database, but when I go to make the request this autofac error occurs.

public class SamuraiDataBaseMigrationController : BasePluginController
{
    private readonly ISamuraiDataService _service;

    public SamuraiDataBaseMigrationController(ISamuraiDataService service)
    {
        _service = service;
    }

    [HttpPost]
    public ActionResult AdicionarAoMigrate([FromBody] ProductInfoModel data)
    {
        _service.ArmazenarDados(data.ProductName, data.ProductPrice);
        return Json(new { success = true, message = "Informações do produto migradas com sucesso!" });
    }


}

nopStation wrote:

The intention of this plugin is to receive the name and price of a product from the products view of my nopcommerce store, through an ajax request to my controller, and within the controller it migrates the name and price to a table in the database, but when I go to make the request this autofac error occurs.

public class SamuraiDataBaseMigrationController : BasePluginController
{
    private readonly ISamuraiDataService _service;

    public SamuraiDataBaseMigrationController(ISamuraiDataService service)
    {
        _service = service;
    }

    [HttpPost]
    public ActionResult AdicionarAoMigrate([FromBody] ProductInfoModel data)
    {
        _service.ArmazenarDados(data.ProductName, data.ProductPrice);
        return Json(new { success = true, message = "Informações do produto migradas com sucesso!" });
    }


}