Introduction

MongoDB provides a variety of design patterns to help you model data efficiently for real-world use cases. Below are 12 key patterns every developer should know, each illustrated with practical examples.

Table of Contents

• 1. Attribute Pattern
• 2. Computed Pattern
• 3. Bucket Pattern
• 4. Schema Versioning Pattern
• 5. Tree Pattern
• 6. Subset Pattern
• 7. Approximation Pattern
• 8. Outlier Pattern
• 9. Polymorphic Pattern
• 10. Extended Reference Pattern
• 11. Pre-aggregation Pattern
• 12. Document Versioning Pattern

1. Attribute Pattern

Scenario:

An online store has multiple product categories, such as smartphones, laptops, and clothing. Each category contains items with a wide range of attributes. For example: