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Master NestJS with Adaptive AI.

Master NestJS across 21 topics - Foundations, Intermediate, and Advanced - guided by Leyaa's adaptive intelligence.

3Parts

21Topics

161Patterns

40hEst. duration

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NestJS Course

3 - part learning journey

Foundations

7 topics · 55 patterns

Beginner

Intermediate

7 topics · 53 patterns

Intermediate

Advanced

7 topics · 53 patterns

Advanced

Begin Part 1: Foundations

✦ Course Structure

Your NestJS Journey in 3 Parts

Each part builds on the last - a deliberate progression from beginner to advanced.

Beginner

Part 1: Foundations

Covers NestJS Basics and Architecture, Modules, Controllers and 4 more topics.

7Topics

55Patterns

View topics

Intermediate

Part 2: Intermediate

Covers Middleware, Pipes, Guards and 4 more topics.

7Topics

53Patterns

View topics

Advanced

Part 3: Advanced

Covers WebSockets, Microservices, GraphQL Integration and 4 more topics.

7Topics

53Patterns

View topics

Curriculum

Everything You'll Learn

Explore every topic and pattern in the course.

NestJS

3 parts · 21 topics · 161 patterns

Part 1: Foundations7 topics · 55 patterns

Beginner

NestJS Basics and Architecture

8 patterns

Why NestJS exists

NestJS vs Express vs Fastify comparison

TypeScript-first philosophy

Decorator-based architecture

NestJS CLI installation

Project scaffolding

First NestJS application

Application lifecycle

Modules

8 patterns

Why modules organize application structure

Module decorator and metadata

Root module (AppModule)

Controllers

9 patterns

Why controllers handle incoming requests

Controller decorator

Route handlers (GET, POST, PUT, DELETE)

Status codes and headers

Redirect responses

Providers and Services

8 patterns

Why providers encapsulate business logic

Service creation

Injectable decorator

Dependency injection basics

Constructor injection

Custom providers

Provider scope (default, request, transient)

Optional providers

DTOs and Validation

8 patterns

Why DTOs enforce data contracts

DTO class creation

class-validator decorators

class-transformer usage

ValidationPipe setup

Whitelist and transform options

Custom validation decorators

Nested DTO validation

Exception Handling

7 patterns

Why structured errors improve API quality

Built-in HTTP exceptions

Custom exception classes

Exception filters

Global exception filters

Catch decorator

Logging exceptions

Configuration

7 patterns

Why configuration management matters

ConfigModule setup

Environment variables

Configuration namespaces

Validation with Joi

Custom configuration files

Async configuration

Part 2: Intermediate7 topics · 53 patterns

Intermediate

Middleware

7 patterns

Why middleware processes requests before handlers

Creating middleware

Functional middleware

Applying middleware to routes

Global middleware

Middleware ordering

Third-party middleware (cors, helmet)

Pipes

7 patterns

Why pipes transform and validate input

Built-in pipes (ParseIntPipe, ParseBoolPipe)

ValidationPipe in depth

Custom pipes

Pipe binding (parameter, method, controller, global)

Default value pipe

File validation pipe

Guards

7 patterns

Why guards control access

Guard interface (canActivate)

Role-based guards

JWT authentication guard

Guard binding levels

Combining multiple guards

Reflector and custom decorators

Interceptors

7 patterns

Why interceptors add cross-cutting logic

Interceptor interface

Logging interceptor

Response transformation

Cache interceptor

Timeout interceptor

Exception mapping interceptor

Database with TypeORM

9 patterns

Why TypeORM integrates seamlessly with NestJS

Relations (OneToMany, ManyToOne, ManyToMany)

Query builder

Migrations

Transactions

Database with Prisma

7 patterns

Why Prisma offers type-safe database access

Prisma setup in NestJS

Authentication

9 patterns

Why authentication secures NestJS APIs

Passport.js integration

Local strategy (username/password)

JWT strategy

Token generation and validation

Protected routes with guards

Role-based authorization

Refresh token pattern

Session-based authentication

Part 3: Advanced7 topics · 53 patterns

Advanced

WebSockets

7 patterns

Why WebSockets enable real-time features

Gateway decorator

WebSocket gateway creation

Event handling

Broadcasting messages

Rooms and namespaces

WebSocket guards and pipes

Microservices

8 patterns

Why microservices scale independently

Microservice transports

TCP transport

Redis transport

Message patterns (request-response)

Event patterns (event-based)

Hybrid applications

gRPC transport

GraphQL Integration

8 patterns

Why GraphQL fits NestJS architecture

Code-first approach

Schema-first approach

Resolvers

Object types and input types

Queries and mutations

Subscriptions

DataLoader integration

Queues and Background Jobs

7 patterns

Why background processing handles heavy tasks

Bull queue integration

Queue producers

Queue consumers (processors)

Job options (delay, attempts, priority)

Named jobs

Queue events and monitoring

Testing

8 patterns

Why testing ensures application reliability

Unit testing services

Unit testing controllers

Testing module setup

Mocking providers

Integration testing

E2E testing with supertest

Test database strategies

Caching and Performance

7 patterns

Why caching reduces response latency

CacheModule setup

Cache decorators

Cache stores (memory, Redis)

Custom cache keys

TTL configuration

Rate limiting with throttler

Deployment and Production

8 patterns

Why production readiness matters

Docker containerization

Environment-based configuration

Logging with Winston or Pino

Health checks (Terminus)

Swagger API documentation

CORS configuration

Compression and security headers

Why Leyaa

Not just a course. A learning intelligence.

Leyaa doesn't just deliver content - it understands where you are, what you need, and how to get you there fastest.

Adaptive Diagnostics

Leyaa identifies which of the 161 patterns you've mastered and which need work - before you waste time on what you already know.

Pattern-Level Precision

Every pattern gets a verdict - Learn, Practice, or Skip - so your study time goes exactly where it counts.

Intelligent Pacing

Leyaa reads your velocity across the whole course and adapts your focus list dynamically, keeping you in the optimal learning zone.

Before & After Visibility

Every assessment creates a snapshot. Retake anytime to see exactly how much you've grown - topic by topic, pattern by pattern.

Learner Autonomy

Leyaa recommends, never restricts. Override any suggestion and explore at your own pace - the system tracks everything regardless.

Clear Learning Path

Foundations → Intermediate → Advanced - a structured journey where each part sets you up perfectly for the next.

NestJS

Ready to master NestJS?
Start your journey today

Start your diagnostic now. Build mastery across all 21 topics in under 15 minutes.

21 Topics

161 Patterns

Personalized roadmap

Master NestJS with Adaptive AI.

Your NestJS Journey in 3 Parts

Everything You'll Learn

NestJS

Not just a course. A learning intelligence.

Ready to master NestJS?Start your journey today

Ready to master NestJS?
Start your journey today