public void Configure(EntityTypeBuilder <User> configuration) { configuration.HasKey(a => a.Id); configuration.Property(a => a.Name).HasColumnType("varchar(255)").IsRequired(); configuration.Property(a => a.Email).HasColumnType("varchar(255)").IsRequired(); configuration.Property(a => a.Password).HasColumnType("varchar(255)").IsRequired(); UserSeed seed = new UserSeed(); configuration.HasData(seed.Seed()); configuration.OwnsOne(a => a.Address).HasData(seed.SeedOwnesField_Address()); configuration.ToTable("users"); }