EF dbContext in subscription resolver

[Risbot]

How to use EF dbContext correctly in the subscription resolver?

My problem is that if I try to get a service via context.Service<IUnitOfWork>(); in the subscription resolver, I get an error

{"payload":{"errors":[{"message":"Unexpected Execution Error","extensions":{"code":"HC0008"}}]},"id":"1","type":"data"}

I tried to set up the service by overriding OnRequestAsync in DefaultSocketSessionInterceptor to:

public override ValueTask OnRequestAsync(ISocketConnection connection, IQueryRequestBuilder requestBuilder, CancellationToken cancellationToken)
{
  var serviceProvider = new ServiceCollection().AddTransient<IUnitOfWork, UnitOfWork>().BuildServiceProvider();
  requestBuilder.SetServices(serviceProvider);
  return base.OnRequestAsync(connection, requestBuilder, cancellationToken);
}

In that case, I get an error:

{"payload":{"errors":[{"message": "Make sure you have registered IBatchDispatcher with your request service scope."}]}, "id": "1", "type": "data"}

Can anyone advise me what I'm doing wrong?

[Risbot]

I think it has something to do with this bug #3745