Build Production-Grade NestJS Apps

1.1 Getting Started with the Course: Learn how to navigate the course, what you'll build, and how to get the most out of each module.

1.2 What is NestJS?: Discover what makes NestJS unique and why it's a powerful framework for building backend applications.

2.1 Setup and First Run: Install the NestJS CLI, create your first app, and explore the basic file structure and testing setup.

2.2 Core Concepts Overview: Get a high-level look at modules, providers, and controllers—the core building blocks of every NestJS app.

3.1 Modules and Their Purpose: Understand how to group related features using NestJS modules.

3.2 Controllers and Services: Learn how controllers handle incoming requests and services manage the business logic.

3.3 Dependency Injection in Action: Inject and export services cleanly between modules using providers.

4.1 Creating Routes: Map HTTP methods and routes to controller methods with decorators like @Get and @Post.

4.2 Handling Requests and Responses: Access request parameters, query strings, and request bodies using built-in decorators.

4.3 Working with the Response Object: Customize responses and use status codes effectively using the Response object and helper methods.

5.1 Defining DTOs and Entities: Use TypeScript classes to define inputs and outputs across layers of your application.

5.2 Creating Domain Models: Separate business logic from data shape with rich domain models.

6.1 Custom Providers and Patterns: Explore useClass, useValue, useFactory, and how to build powerful custom providers.

6.2 Dynamic Modules: Use static methods like forRoot and forFeature to build reusable, configurable modules.

7.1 Managing Environment Variables: Set up the ConfigModule and access typed environment variables using ConfigService.

7.2 Schema Validation: Prevent runtime errors by validating your configuration with schemas.

8.1 Abstract Repository Pattern: Decouple your services from the database using interfaces and swappable implementations.

8.2 Multiple Database Strategies: Implement repositories using in-memory, MongoDB (native + Mongoose), and PostgreSQL (TypeORM).

9.1 Validation and Transformation: Use pipes and DTOs to clean and validate incoming data.

9.2 Error Handling and Serialization: Customize API responses and gracefully handle exceptions using filters and interceptors.

9.3 Execution Context and Metadata: Access request details and create powerful abstractions using decorators and context.

10.1 Authentication and Authorization: Secure your app with JWTs, role-based guards, and custom decorators.

10.2 Best Practices for API Security: Use middleware like Helmet and enable CORS to protect your app.

11.1 Unit and Integration Testing: Write tests for services, controllers, and modules using the built-in TestingModule.

11.2 Mocks, Spies, and Fixtures: Isolate dependencies and improve test reliability with mocking strategies.

12.1 Build and Ship Your App: Deploy your NestJS app using Docker, including production-ready configuration.

12.2 Deployment Automation: Automate your deployments with GitHub Actions and deploy to AWS.

B.1 Logging and Monitoring: Implement structured logging, custom logger providers, and monitor your application's health.

B.2 OpenAPI and Swagger: Document your API using OpenAPI decorators and explore your endpoints with Swagger UI.

B.3 Application Modes and Monorepo: Learn how to structure large applications and work with monorepos

B.4 Developer Experience: Master productivity with CLI commands, VSCode extensions, debugging tools and other developer utilities.

B.5 NestJS Cheatsheets: Quick reference guides covering core concepts and patterns used in the course.