NodeJS – codewindow.in

In this example, we define two models, User and Post, and define a one-to-many relationship between them using User.hasMany(Post) and Post.belongsTo(User). We then create a user and two posts, and associate the posts with the user using user.setPosts([post1, post2]). Finally, we retrieve the posts belonging to the user using user.getPosts().

Mongoose provides similar functionality for defining and managing relationships between documents in MongoDB.