How can i inejct only one intance of my DbContext per request in my controllers?

Question

My controller needs two types of service and both need to have the same interface of dbcontext,

public class MyController : Controller
    {
        protected readonly ISomeService _some;
               protected reaonly IUnitOfWork _unitOfWork

        public MyController(IUnitOfWork unitOfWork, ISomeService some) 
        {
            _some = some;
            _unitOfWork = unitOfWork

        }

//This is my configuration

services.AddDbContext<MyContext>(x =>  
   {

    x.UseSqlServer(Configuration.GetConnectionString("coon"));

  });

Answer 1

From the documentation :

Entity Framework contexts

Entity Framework contexts should be added to the service container using the scoped lifetime. This is handled automatically with a call to the AddDbContext method when registering the database context. Services that use the database context should also use the scoped lifetime.

So AddDbContext would add it as a scoped life time.

You need to make sure that the controllers / or other places where this is used, are also added in DI as the Scoped items.

Scoped lifetime services are created once per request.

Answer 2

我发现Issuse我的问题是我使用AsyncSaveChanges insted SaveChanges，但我的服务得到了相同的instace谢谢大家:)！