AppDbContext with products, from Supermarket API

AppDbContext.cs

protected override void OnModelCreating(ModelBuilder builder)
{
    base.OnModelCreating(builder);
    
    builder.Entity<Category>().ToTable("Categories");
    builder.Entity<Category>().HasKey(p => p.Id);
    builder.Entity<Category>().Property(p => p.Id).IsRequired().ValueGeneratedOnAdd().HasValueGenerator<InMemoryIntegerValueGenerator<int>>();
    builder.Entity<Category>().Property(p => p.Name).IsRequired().HasMaxLength(30);
    builder.Entity<Category>().HasMany(p => p.Products).WithOne(p => p.Category).HasForeignKey(p => p.CategoryId);

    builder.Entity<Category>().HasData
    (
        new Category { Id = 100, Name = "Fruits and Vegetables" }, // Id set manually due to in-memory provider
        new Category { Id = 101, Name = "Dairy" }
    );

    builder.Entity<Product>().ToTable("Products");
    builder.Entity<Product>().HasKey(p => p.Id);
    builder.Entity<Product>().Property(p => p.Id).IsRequired().ValueGeneratedOnAdd();
    builder.Entity<Product>().Property(p => p.Name).IsRequired().HasMaxLength(50);
    builder.Entity<Product>().Property(p => p.QuantityInPackage).IsRequired();
    builder.Entity<Product>().Property(p => p.UnitOfMeasurement).IsRequired();

    builder.Entity<Product>().HasData
    (
        new Product
        {
            Id = 100,
            Name = "Apple",
            QuantityInPackage = 1,
            UnitOfMeasurement = EUnitOfMeasurement.Unity,
            CategoryId = 100
        },
        new Product
        {
            Id = 101,
            Name = "Milk",
            QuantityInPackage = 2,
            UnitOfMeasurement = EUnitOfMeasurement.Liter,
            CategoryId = 101,
        }
    );
}