Core Development with NestJS: Build Efficient and Modular Server-Side Apps

📝 Course Introduction:

NestJS is rapidly becoming the go-to Node.js framework for building efficient, scalable, and well-architected backend applications in TypeScript. Inspired by Angular’s structure and powered by Express (or optionally Fastify), NestJS brings a modern, modular, and enterprise-friendly approach to building server-side applications — whether it’s REST APIs, GraphQL endpoints, or microservices.

In this comprehensive course series, “Core Development with NestJS: Build Efficient and Modular Server-Side Apps”, you will gain in-depth knowledge of the core architecture of NestJS and learn how to build robust, production-grade backend systems from the ground up. This is not just another crash course — it’s a structured, progressive journey designed to help you think in terms of software architecture, design patterns, and real-world best practices.

🎯 What You Will Learn:

• Core Concepts & Architecture
• Understanding the modular architecture of NestJS
• How dependency injection and providers work
• Lifecycle of controllers, services, modules, and interceptors
• RESTful API Development
• Building clean, maintainable REST APIs
• DTOs, data validation (using class-validator), and input sanitization
• Exception filters, guards, and middleware
• Advanced Routing & Middleware
• Dynamic routes, route prefixing, nested routes
• Middleware and custom decorators
• Database Integration
• TypeORM & Prisma integration with PostgreSQL, MySQL, MongoDB
• Entity relationships, migrations, and database lifecycle
• Authentication & Authorization
• JWT authentication flow
• Role-based access control (RBAC) with custom guards
• Integrating Passport.js strategies
• Real-Time Communication
• WebSocket integration (with socket.io or native adapters)
• Building chat applications or real-time dashboards
• GraphQL with NestJS
• Code-first vs schema-first GraphQL approaches
• Resolvers, queries, mutations, and subscriptions
• Microservices & Message Queues
• Event-driven architecture using RabbitMQ, Kafka, or Redis
• NestJS Microservice module and inter-service communication
• Testing & Debugging
• Unit testing with Jest
• E2E testing and mocking with Supertest
• Deployment & DevOps
• Environment config management using @nestjs/config
• Building for production and deploying to platforms like Docker, Heroku, or AWS
• Logging and monitoring (using Winston, Sentry, etc.)

🚀 Why Take This Course?

This course is built for developers who want to level up from building basic APIs to engineering complete, scalable backend systems for startups or enterprises. NestJS is built for the long-term — and this course will help you build a solid mental model of how modern backend development works.

By mastering NestJS core technologies, you will:

• Learn how to architect clean, testable, and maintainable applications
• Build real-world projects with authentication, databases, and microservices
• Think in SOLID principles and domain-driven design
• Prepare for advanced backend roles or full-stack positions

Whether you are transitioning from Express, Django, Laravel, or Spring Boot, or you're already familiar with TypeScript — this course will help you adopt NestJS confidently and apply it professionally.

👨‍💻 Ideal For:

• Backend developers with TypeScript or JavaScript experience
• Full-stack developers looking to upgrade their backend architecture
• Engineers building SaaS products or enterprise-grade platforms
• Anyone who wants to master the NestJS framework in a structured, real-world way