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Welcome to the NestJS Masterclass, your one-stop guide to mastering NestJS from the ground up! If you’re looking to build efficient, scalable, and production-ready server-side applications with Node.js, you’re in the right place. NestJS is a progress...
🏗️ What is NestJS? NestJS is a progressive Node.js framework built with TypeScript for developing server-side applications and even CLI tools. Think of NestJS as an opinionated framework that combines Node.js with TypeScript, wrapping industry-stand...
1) Install Node.js (LTS) Go to nodejs.org and download the LTS installer for your OS. Run the installer with the defaults. Verify in a terminal: node --version npm --version ✅ Anything reasonably recent is fine. If you’re new to Node, stick to...
1) What is a Module? A module is a cohesive package of functionality. In NestJS, every feature lives inside a module. Think: UsersModule for user-related concerns, PostsModule for blog posts, etc. Each module has a single entry file: *.module.ts (e...
1) Big Picture: How Nest boots (main.ts) → (AppModule) → (Your Feature Modules) main.ts bootstraps the application. It creates a Nest instance from AppModule. AppModule is the root module that imports your feature modules (Users, Posts, Auth,...
In the previous lesson we saw how main.ts bootstraps the app. It creates the Nest application from a single root module: AppModule. In this post we’ll: clarify what AppModule does (and why it matters), demystify file naming vs. decorators, show ho...