Entity Framework disposing with async controllers in Web api/MVC

Question

I have this little sample of code:

public class ValueController : ApiController
{
    private EstateContext _db;

    public ValueController()
    {
                 


        

Answer 1

You need to create a new instance of your EstateContext inside the async method.

[HttpPost]
public async void DoStuff(string id)
{
    EstateContext db = new EstateContext();
    var entity = await db.Estates.FindAsync(id);
    db.SaveChanges();
}

However, I believe that if you change the return type of your controller action to Task then you should be able to reuse the context that is a member of the controller.

[HttpPost]
public async Task DoStuff(string id)
{
    var entity = await _db.Estates.FindAsync(id);
    _db.SaveChanges();
}