BSON Documents & Collections

🍁 MongoDBLesson 3Beginner

MongoDB stores data records as BSON documents. BSON is a binary serialization of JSON that contains additional data types like ObjectId, Date, and Binary data.

1 Document Structure Example

JSON — Sample Document

{
  "_id": ObjectId("507f1f77bcf86cd799439011"),
  "username": "balaji",
  "email": "balaji@test.com",
  "age": 25,
  "hobbies": ["coding", "reading"],
  "address": {
    "city": "Hyderabad",
    "country": "India"
  },
  "created_at": ISODate("2026-07-13T10:00:00Z")
}

2 Code Challenge

Challenge: Write a custom JSON document representing an e-commerce product. Include nested properties for product dimensions (width, height, depth) and an array of tags.