When dispose a dbcontext in .net core?

Question

im making a project with a persistence layer, domain layer, and business layer, i implementing the generic repository pattern and unit of work with entity framework core.

I want to use this project in a web api rest and in a UWP project.

The correct ways its override the method?, add the context in the startup configureservices? When dispose a dbcontext?

Answer 1

Read documentation on configuring DbContext: https://docs.microsoft.com/en-us/ef/core/miscellaneous/configuring-dbcontext

Basically, you add it to your services:

public void ConfigureServices(IServiceCollection services)
{
    services.AddDbContext<BloggingContext>(options => options.UseSqlite("Data Source=blog.db"));
}

Then you inject it into whatever class you want. An easy example would be inejecting it into a Controller (but you could inject into any class that is added to your services):

public class MyController
{
    private readonly BloggingContext _context;

    public MyController(BloggingContext context)
    {
        _context = context;
    }

    ...
}

The Dependency Injection library will then handle disposal - you do not call Dispose directly. This is described in documentation here .

The framework takes on the responsibility of creating an instance of the dependency and disposing of it when it's no longer needed.