Sample implementation of IDBContextFactory for Entity Framework Core tooling

EventDbContextFactory.cs

public class EventDbContextFactory : IDbContextFactory<EventDataContext>
{
    public EventDataContext Create(DbContextFactoryOptions options)
    {
        var builder = new DbContextOptionsBuilder<EventDataContext>();
        builder.UseSqlServer(@"Server=(localdb)\mssqllocaldb;Database=SampleApiDatabase;Trusted_Connection=True;");
        return new EventDataContext(builder.Options);
    }
}