The most comprehensive, beginner-to-advanced MongoDB tutorial & reference on GitHub — covering 27 structured parts from basics to Replication, Sharding, Transactions, Atlas Search, Aggregation Pipelines, Indexing, Triggers, and MongoDB with Node.js Integration.
🎓 27 structured parts — from absolute beginner to production-grade MongoDB. Every concept in this repo is explained live with real examples, debugging tips, and best practices.
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This repository is a structured, hands-on MongoDB learning guide — the perfect reference for developers going from zero to production-ready MongoDB skills. Each part is a focused, self-contained Markdown file packed with real code examples, clear explanations, and practical tips.
🔗 Related Repositories:
- 📦 mongodb-dataset — Ready-to-use E-commerce JSON datasets (Customers, Orders, Products, Reviews) to practice queries in this guide.
- 🟢 mongodb-nodejs-project — Full MongoDB + Node.js Integration with Express & Mongoose — complete CRUD API.
mongodb-notes/
│
├── 📁 docs/
│ ├── 📁 01-fundamentals/ ← What is MongoDB, Atlas Setup
│ ├── 📁 02-querying/ ← CRUD, Operators, Cursor, Projection, Regex
│ ├── 📁 03-data-modelling/ ← Embedding, Referencing, Soft Delete
│ ├── 📁 04-advanced-operations/ ← Array Operators, Updates, Bulk Write, Indexing
│ ├── 📁 05-aggregation/ ← Basic → Advanced → Expert Pipelines
│ ├── 📁 06-atlas-search/ ← Atlas Search, Fuzzy, Autocomplete
│ └── 📁 07-production/ ← Triggers, Transactions, Sharding, Replication
│
├── 📁 assets/
│ └── 📁 images/ ← Architecture diagrams (PNG)
│
├── 📁 examples/
│ └── mongoose-crud-example.js ← Node.js + Mongoose integration example
│
├── README.md ← You are here
├── CHANGELOG.md ← Release history
├── CONTRIBUTING.md ← How to contribute
├── CODE_OF_CONDUCT.md ← Community standards
└── LICENSE ← MIT License
| # | File | What You'll Learn |
|---|---|---|
| 01 | Introduction to MongoDB | NoSQL vs SQL, documents, collections, why MongoDB |
| 02 | MongoDB Atlas Setup | Cloud setup, cluster creation, connection strings |
| # | File | What You'll Learn |
|---|---|---|
| 03 | Basic Queries | find, findOne, filtering documents |
| 04 | CRUD Operations | insertOne, updateOne, deleteOne, replaceOne |
| 05 | Comparison Operators | $eq, $ne, $gt, $lt, $in, $nin |
| 06 | Logical Operators | $and, $or, $not, $nor |
| 09 | Data Types | BSON types, ObjectId, Date, Number, String |
| 10 | Cursor Methods | skip(), limit(), sort() for pagination |
| 11 | Projection | Include/exclude fields, $slice, $elemMatch |
| 15 | Query Operators | $exists, $type, $expr, $jsonSchema |
| 16 | Regex Searching | Pattern matching, case-insensitive search |
| # | File | What You'll Learn |
|---|---|---|
| 07 | Soft Delete vs Hard Delete | Patterns for safe data deletion |
| 08 | Embedding vs Referencing | Data modelling strategies, when to use each |
| # | File | What You'll Learn |
|---|---|---|
| 12 | Array Operators | $push, $pull, $addToSet, $all, $size |
| 13 | Advanced Update Operators | $set, $unset, $inc, $rename, $min, $max |
| 14 | Bulk Write | bulkWrite, ordered vs unordered operations |
| 17 | Indexing | Single, compound, text, TTL indexes; explain() |
| # | File | What You'll Learn |
|---|---|---|
| 18 | Aggregation Basics | $match, $group, $sort, $project, $count |
| 19 | Aggregation Advanced | $lookup, $unwind, $facet |
| 20 | Aggregation Expert | $addFields, $merge, $cond, $switch |
| # | File | What You'll Learn |
|---|---|---|
| 21 | Atlas Search Basics | Atlas Search, analyzers, index configuration |
| 22 | Fuzzy & Compound Search | Fuzzy search, compound queries, scoring |
| 23 | Autocomplete & Custom Search | Autocomplete, custom search, stored source |
| # | File | What You'll Learn |
|---|---|---|
| 24 | Triggers | Database triggers, scheduled triggers, event-driven logic |
| 25 | Transactions | ACID transactions, sessions, multi-document writes |
| 26 | Sharding | Horizontal scaling, shard keys, mongos, chunks |
| 27 | Replication | Replica sets, primary/secondary, failover, oplog |
🟢 Beginner ──▶ 01-fundamentals → 02-querying (Parts 03–06, 09)
🟡 Intermediate ──▶ 03-data-modelling → 02-querying (Parts 10–11, 15–16)
🔴 Advanced ──▶ 04-advanced-operations → 05-aggregation → 06-atlas-search
🚀 Expert ──▶ 07-production → examples/mongoose-crud-example.js
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| Concept | Section |
|---|---|
| Core CRUD & Queries | 02-querying Parts 03–04 |
| Filtering & Operators | 02-querying Parts 05–06, 15 |
| Data Modelling | 03-data-modelling |
| Performance & Pagination | 02-querying Part 10, 04-advanced-operations Part 17 |
| Array & Update | 04-advanced-operations Parts 12–14 |
| Search & Regex | 02-querying Part 16, 06-atlas-search |
| Aggregation Pipeline | 05-aggregation |
| Triggers & Automation | 07-production Part 24 |
| Transactions (ACID) | 07-production Part 25 |
| Sharding (Scale-out) | 07-production Part 26 |
| Replication & HA | 07-production Part 27 |
| Node.js Integration | mongodb-nodejs-project |
Use the ready-made E-commerce dataset to practice queries:
# Clone the dataset repo
git clone https://github.com/vivekpandey76/mongodb-dataset.git
cd mongodb-dataset
# Import via mongoimport
mongoimport --db ecommerce --collection Customers --file Customer-dataset.json --jsonArray
mongoimport --db ecommerce --collection Orders --file OrdersCollection.json --jsonArray
mongoimport --db ecommerce --collection Products --file Products-dataset.json --jsonArray
mongoimport --db ecommerce --collection Reviews --file Reviews-dataset.json --jsonArrayCollections available: Customers · Orders · Products · Reviews · CustomerLarge · CustomerOtp
- MongoDB installed locally or a free MongoDB Atlas account
- MongoDB Shell (mongosh) or MongoDB Compass
- Node.js
v18+(for the Node.js integration examples)
# 1. Clone this repository
git clone https://github.com/vivekpandey76/mongodb-notes.git
cd mongodb-notes
# 2. Start reading — open any file in docs/ to begin
# Recommended start: docs/01-fundamentals/01-introduction-to-mongodb.md
# 3. Run the Node.js example
node examples/mongoose-crud-example.js
# 4. Clone & load the practice datasets
git clone https://github.com/vivekpandey76/mongodb-dataset.git| Repository | Description | Link |
|---|---|---|
| 📦 mongodb-dataset | E-commerce JSON datasets for practice | → Visit |
| 🟢 mongodb-nodejs-project | MongoDB + Node.js + Express CRUD API | → Visit |
Contributions, issues, and feature requests are welcome!
Please read the Contributing Guide before submitting a pull request.
- Fork the repo
- Create your feature branch:
git checkout -b feature/add-notes - Commit your changes:
git commit -m 'docs: add notes for Part X' - Push to the branch:
git push origin feature/add-notes - Open a Pull Request
This project follows the Contributor Covenant Code of Conduct.
If these notes helped you, please star ⭐ this repository — it helps others discover it and keeps this resource growing!
This project is licensed under the MIT License — see the LICENSE file for details.
Copyright © 2024 Vivek Pandey
Made with ❤️ by Vivek Pandey for the developer community | Happy Learning! 🍃