MongoDB Patterns

Document database design and query optimization for MongoDB.

Document Modeling Strategies

// EMBED when: 1:1 or 1:few, data read together, child has no independent lifecycle
interface Order {
  _id: ObjectId
  customerId: ObjectId
  status: 'pending' | 'paid' | 'shipped'
  items: OrderItem[]        // Embedded - always read with order
  shippingAddress: Address  // Embedded - 1:1
  createdAt: Date
}