NestJS Ultimate Masterclass: (Basics to Advanced) 2026

Discover NestJS, a progressive Node.js framework for building efficient server-side APIs (REST, GraphQL, WebSocket) with an mvc structure, modular blocks, and platform-agnostic adapters.

NestJS offers an opinionated, module-based framework with dependency injection and strong TypeScript support, contrasting with Express’s minimal, unopinionated approach and enabling enterprise-grade database integration.

Compare NestJS to Express and outline its modular architecture with built-in dependency injection, controllers, providers, modules, and middleware, guards, interceptors, pipes, and exception filters.

Create a production-ready baseline template for NestJS microservices by configuring ESLint, Prettier, Husky, Docker, and Jest, with a scalable domain-based folder structure and test environments.

Navigate the typical NestJS architecture with an app module and modular domains like user and task, each with controllers, services, repositories, and DTOs, plus layered architecture and dependency injection.

Understand how a NestJS HTTP request flows from middleware through guards, interceptors, pipes, and controller to fetch data via service and repository, then format a JSON response with exception handling.

Explore dependency injection and inversion of control in NestJS, using an IoC container to provide singleton service instances. See how constructor injection and module imports enable service usage across modules.

Explore how dependency injection works across NestJS modules by importing and exporting user module, injecting the user service into order controller and order service, and following the DI container's resolution.

Explore NestJS building blocks like controllers, services, and middleware, and see how guards, interceptors, pipes, and filters shape API routes and authorization.

Explore building a multi-module NestJS app by structuring controller, service, and data access layers, creating task and user modules, and resolving module imports and cyclic dependencies.

Learn how to build simple in-memory CRUD APIs in nestjs using a task model, with a controller, service, and in-memory array for create, read, update, and delete operations.

Explore the NestJS request lifecycle from middleware to guard, interceptor, controller, and service, including validation pipes, DTO transformations, and JWT-based authentication.

learn how nestjs middleware validates authorization headers, initializes a mock user session, and how guards enforce role-based access, with public and private routes illustrated.

Expose NestJS APIs with Swagger and OpenAPI specs via the NestJS Swagger module. Configure, annotate DTOs, and enable bearer auth to auto-update documentation at the docs endpoint.

Explore how NestJS uses an inversion of control container to implement dependency injection, contrasting it with Express and showing how modules, controllers, providers, and exports enable wiring.

Explore how NestJS uses an inversion of control container and dependency injection to decouple modules and services, compare with Express MVC, and implement constructor injection, exports, and forward references.

Explore NestJS building blocks—controllers, modules, and services—and how middleware, guards, and validation pipes secure and validate requests. Implement exception filters to handle HTTP errors globally.

Explore NestJS interceptors by transforming request data and response, compare with middleware, and learn registration at controller, route, or global levels while examining pre and post processing.

NestJS building blocks recap: master controllers, routes, services, modules, DTOs, pipes, swagger, and environment config; explore testing, middleware, interceptors, and circular dependencies.

NestJS authentication and authorization using JWT and Passport, implement cookie, session, and token based methods, and apply JWT, local, and role guards with social login and SSO options.

Learn to implement robust logging and monitoring in NestJS microservices using Winston, OpenTelemetry, Prometheus, and New Relic, with log rotation, transports, and metrics exposed to Grafana and Elasticsearch.

Explore how to combine NestJS building blocks: modules, controllers, providers, middleware, guards, interceptors, pipes, and filters into a project, with Swagger docs and dto validation using a global validation pipe.

Dive into NestJS building blocks: guards, middleware, Swagger, and interceptors; learn token validation, role checks, and how HTTP exception filters handle errors.

Learn how NestJS uses built-in http exceptions (bad request, not found, forbidden, internal server error) and how to throw custom http exceptions from controllers, with filters for formatting and logging.

Register NestJS pipes, interceptors, and guards at method, controller, or app levels to manage validation, authentication, and global request handling.

Validate inputs across path, query, and body using NestJS pipes and dto validation with class-validator. Use built-in parse pipes and custom pipes to enforce formats like email, UUID, and ranges.

Discover how NestJS uses rxjs observables, how NestJS resolves them automatically, and apply key operators like map, tap, and catchError within http client and interceptors.

Explore a NestJS multi-module setup with auth and author modules, using passport local strategy and token-based auth shown in swagger docs, and learn to resolve cyclic dependencies with forward ref.

Learn to implement monorepos in NestJS projects with pnpm workspaces, turborepo or nx, or NestJS native workspace. Compare monorepo benefits like single source of truth with polyrepo drawbacks.

Learn how to link internal packages in a monorepo using lerna and workspaces, bootstrap dependencies, and publish updates across api and utils with npm, yarn, or pnpm.

Explore how to set up and work within a pnpm workspace monorepo, using apps and packages, root node modules, and shared libraries to streamline multi-project NestJS development.

Set up pnpm workspaces with a workspace.yml and packages api and utils, link local dependencies with a workspace prefix, and install and run the api to verify utilities.

Explore a pnpm workspace with nx-powered monorepo for building a full-stack app, featuring a Next.js frontend, proxy gateway to microservices, and reusable packages in apps and packages.