在.net内核中建模mongodb存储的引用关系

public class Author
{
    public ObjectId Id { get; set; }
    public string Name { get; set; }
    public List<ObjectId> BookIds { get; set; }
}

public class Book
{
    public ObjectId Id { get; set; }
    public string Title { get; set; }
    public ObjectId AuthorId { get; set; }
}

var author = new Author
{
    Name = "John Smith",
    BookIds = new List<ObjectId>()
};

var book = new Book
{
    Title = "Sample Book",
    AuthorId = author.Id
};

author.BookIds.Add(book.Id);

var client = new MongoClient("mongodb://localhost:27017");
var database = client.GetDatabase("mydb");
var authorsCollection = database.GetCollection<Author>("authors");
var booksCollection = database.GetCollection<Book>("books");

authorsCollection.InsertOne(author);
booksCollection.InsertOne(book);