Scalable & Maintainable Directory Structure for Node.js + Express | Domain Driven Design

In this video, I’ll walk you through a clean, scalable project structure for Node.js + Express using Domain-Driven Design (DDD) principles.

A good directory structure helps improve:
✔️ Development efficiency
✔️ Long-term maintainability
✔️ Team collaboration and code clarity

We’ll break down how to organize domains (like User, Post, etc.), where to put configs, jobs, middlewares, routes, utilities, and more.
Whether you're building client projects, APIs at scale, or just want to clean up your backend code, this guide will help you structure it the right way.

🧠 What You’ll Learn
✅ How to set up a clean project structure in Node.js + Express
✅ Key concepts of Domain-Driven Design (DDD) for web apps
✅ How to structure folders for:
• src/
• routes/
• middlewares/
• jobs/
• utils/
• index.ts vs server.ts

📦 Starter Kit Mentioned
👉 Node + TS Starter Kit (Docker, Prettier, ESLint, Logger, etc.):
https://agilecoder.gumroad.com/l/node...
Note: Express not included — this kit focuses on tooling.

📚 Timestamps:
00:00 - Introduction
00:08 - Why a Good Directory Structure Matters
01:07 - Understanding .devcontainer and .github directories
01:43 - Breaking Down the src folder
02:10 - What are Domains in Node.js Projects?
03:13 - Jobs, Middlewares & Utilities Explained
05:00 - Understanding index.ts and server.ts

📺 Watch More in the Node.js + Express Use Cases Series:
• Node + Express + TypeScript Setup Guide →    • Setting Up Node.js + Express + TypeScript ...  
• Every Web Auth Method You Need in 2025 →    • Every Web Auth Method you need to know in ...  

🔔 Don't miss out! Subscribe to the channel for more programming videos every week! Click here:    / @agilecoderyt  

If you are into emulating games on a MacBook, you might want to check out these videos
• Setting up PPSSPP & PCSX2 in Macbook Air M1 →    • Setup PCSX2 and PPSSPP in MacBook Air M1 |...  
• Fix your controllers on Mac Machines →    • Fix your controller on Mac Machines | PCSX...  
• Is MacBook Pro M4 Pro powerful enough for RPCS3 →    • Is Macbook Pro M4 Pro Powerful Enough for ...  

⚡ Let's Connect:
Instagram:   / __iamsmruti  
LinkedIn:   / iamsmruti  
Email: smruti.ranjan@outlook.in

⚡ My Websites:
My Tech Blog: https://agilecoder.in
My Japanese Blog: https://nihongo-study.vercel.app

⚡ My Gear:
Laptop: MacBook Air M1 - https://amzn.to/3MRBE9K
Microphone: Boya ByM1 - https://amzn.to/3XyBoRX

💼 Business Inquiries:
For collaborations, partnerships, or sponsorships, contact me at: smruti.ranjan@outlook.in

📍 About Me:
I create fast and practical programming tutorials that get straight to the point. Whether you're building full-stack apps or integrating real-world APIs, you’ll find useful, no-fluff content here to help you grow as a developer.

#AgileCoder #NodeJS #ExpressJS #WebDevelopment #BackendDevelopment #SoftwareEngineering #TypeScript #APIDevelopment #CodingTutorial #FullStackDevelopment #WebDev