mongodb

SKILL.md

MongoDB and Mongoose schema design, querying, aggregation pipelines, and performance optimization.

Covers both native MongoDB driver and Mongoose ODM with connection setup, CRUD operations, and graceful shutdown patterns

Schema design guidance including embedded vs. referenced documents, virtuals, validation, indexes, and text search configuration

Query operations with 20+ operators (comparison, logical, array, regex) plus find, update, and upsert patterns with query builders

Aggregation pipeline stages ($match, $group, $lookup, $unwind, $facet) with real-world examples for sales analytics and top-product queries

Middleware hooks, transactions, bulk operations, cursor iteration for large datasets, and Atlas-specific features like full-text and vector search

MongoDB & Mongoose

Build and query MongoDB databases with best practices.

Quick Start

npm install mongodb mongoose

Native Driver

import { MongoClient, ObjectId } from 'mongodb';

const client = new MongoClient(process.env.MONGODB_URI!);
const db = client.db('myapp');
const users = db.collection('users');