Module Overview

What You’ll Learn

• Define Mongoose schemas with field types and validation rules
• Create Mongoose models and use them to query MongoDB
• Explain what Mongoose adds on top of the native driver from Module 7

💡 Why this module matters: The native driver (Module 7) works, but every document is unchecked, nothing stops a required field from being missing. Mongoose adds schemas, structure and validation for MongoDB, the closest thing this course’s MongoDB side has to Prisma’s models.

What’s Covered

• Defining schemas, field types, required fields, and default values.
• Creating models, turning a schema into a queryable Mongoose model.
• Validation, rejecting invalid documents before they reach the database.
• Mongoose versus the native driver, what structure is gained, and the trade-offs.

Hands-On

By the end of this module, you’ll have defined a real Mongoose schema and model, with validation, and used it to perform CRUD operations against MongoDB.

Next module: modeling relationships between MongoDB documents.