Migrating EF to EF Core

Hello Experts,

I have been stuck while doing migrating.

In the part of migrating, I started with EF to EF Core.

In the Repository, we have something like below, which was added by using a library called System.Data.Entity.Migrations [Implemented by inheriting class called DbSetMigrationsExtensions]

public virtual void AddOrUpdate(Expression> identifierExpression, T entity)

{

if (identifierExpression == null)

throw new ArgumentNullException(nameof(identifierExpression));

if (entity == null)

throw new ArgumentNullException(nameof(entity));

DbSet.AddOrUpdate(identifierExpression, entity);

SaveChanges();

}

The same method I have to call in my new migrating code.

But I am not able to add the same library in EF Core. Are there any alternate ways we can do this. ?

Any help would be really appreciated.