Node.js Runtime Mastery & Production REST API Engineering with Express & TypeScript
Master V8 Runtime Internals, Libuv Event Loop, Streams, TypeScript & Hardened Express REST APIs
Course Prerequisites
None. Open to learners of all backgrounds.
Part of Academy Track:
What You Will Master
Curriculum Modules (5 Modules)
Explore the structured module breakdown, lesson outcomes, and practical lab exercises.
Module 1: Node.js Runtime Internals, Event Loop & Non-Blocking Asynchronous I/O
4 Lessons • ~6.9 Study Hours (0.69 CEUs)Welcome to Module 1: Node.js Runtime Internals, Event Loop & Non-Blocking Asynchronous I/O. In this section of the curriculum, learners dive deep into foundational and advanced principles designed for production application. This module covers: Master the symbiotic relationship between Google's V8 JavaScript execution engine, Libuv C-library, thread pools, and the precise phased execution of the Node.js event loop.; Deconstruct the priority hierarchy between process.nextTick, Promise microtasks, and Libuv macrotasks to prevent event loop starvation in high-concurrency Node services.; Deep dive into V8 heap structure, generational garbage collection (Scavenge vs Mark-Sweep-Compact), heap profiling, and locating elusive memory leaks in production Node.js servers..
The V8 Engine, Libuv Architecture & The Single-Threaded Event Loop
Master the symbiotic relationship between Google's V8 JavaScript execution engine, Libuv C-library, thread pools, and the precise phased execution of the Node.js event loop.
Microtasks, Macrotasks, Call Stack Dynamics & Starvation
Deconstruct the priority hierarchy between process.nextTick, Promise microtasks, and Libuv macrotasks to prevent event loop starvation in high-concurrency Node services.
Memory Lifecycle, Garbage Collection Mechanics & Leak Prevention
Deep dive into V8 heap structure, generational garbage collection (Scavenge vs Mark-Sweep-Compact), heap profiling, and locating elusive memory leaks in production Node.js servers.
Process Lifecycle, Signal Handling & Unhandled Exceptions
Implement bulletproof UNIX signal handling (SIGTERM, SIGINT), handle unhandled promise rejections deterministically, and engineer zero-downtime graceful shutdown sequences.
Module 2: Binary Buffers, Core Streams & The EventEmitter Pattern
4 Lessons • ~5.9 Study Hours (0.59 CEUs)Welcome to Module 2: Binary Buffers, Core Streams & The EventEmitter Pattern. In this section of the curriculum, learners dive deep into foundational and advanced principles designed for production application. This module covers: Master raw memory allocation outside the V8 heap using Buffer.alloc, Buffer.from, byte-endianness, and high-performance binary parsing for protocol decoders.; Process multi-gigabyte files and real-time network payloads in constant memory using Node.js stream interfaces, chunk buffers, and highWaterMark tuning.; Master backpressure dynamics, avoid memory bloat when piping fast producers into slow consumers, and implement safe stream pipelines using stream.pipeline..
Low-Level Binary Data Processing with Buffers & TypedArrays
Master raw memory allocation outside the V8 heap using Buffer.alloc, Buffer.from, byte-endianness, and high-performance binary parsing for protocol decoders.
Mastering Node.js Streams: Readable, Writable, Duplex & Transform
Process multi-gigabyte files and real-time network payloads in constant memory using Node.js stream interfaces, chunk buffers, and highWaterMark tuning.
Stream Pipelining, Backpressure Management & Error Boundaries
Master backpressure dynamics, avoid memory bloat when piping fast producers into slow consumers, and implement safe stream pipelines using stream.pipeline.
Decoupled Architectures with Custom EventEmitter Implementations
Design decoupled in-process domain events using Node's EventEmitter, manage listener lifecycles, and handle asynchronous error propagation safely.
Module 3: Enterprise TypeScript Setup & Express.js Middleware Architecture
4 Lessons • ~6.3 Study Hours (0.63 CEUs)Welcome to Module 3: Enterprise TypeScript Setup & Express.js Middleware Architecture. In this section of the curriculum, learners dive deep into foundational and advanced principles designed for production application. This module covers: Configure production TypeScript 5 environments using strict tsconfig settings, tsx/SWC execution, path aliases, and multi-stage build pipelines.; Master Express 4/5 request/response pipeline, custom middleware chaining, request context decoration, and modular router composition.; Implement centralized async error handling, custom domain error hierarchies, and format API errors following the RFC 7807 Problem Details specification..
Strict TypeScript Tooling & Node.js Build Pipelines
Configure production TypeScript 5 environments using strict tsconfig settings, tsx/SWC execution, path aliases, and multi-stage build pipelines.
Express.js Request Pipeline & Custom Middleware Composition
Master Express 4/5 request/response pipeline, custom middleware chaining, request context decoration, and modular router composition.
Global Error Handling & RFC 7807 Problem Details Standard
Implement centralized async error handling, custom domain error hierarchies, and format API errors following the RFC 7807 Problem Details specification.
Multipart Form Data & File Upload Pipelines with Multer
Handle multipart/form-data uploads securely using Multer, validate MIME types via magic bytes, enforce size quotas, and stream directly to cloud object storage.
Module 4: Input Validation, Security Hardening & Authentication
4 Lessons • ~5.9 Study Hours (0.59 CEUs)Welcome to Module 4: Input Validation, Security Hardening & Authentication. In this section of the curriculum, learners dive deep into foundational and advanced principles designed for production application. This module covers: Implement declarative, type-safe request validation pipelines using Zod and express-validator to intercept malicious payloads before hitting controllers.; Configure production HTTP security headers with Helmet, implement strict Cross-Origin Resource Sharing (CORS) rules, and prevent Clickjacking, MIME sniffing, and XSS.; Implement Argon2id/bcrypt password hashing, sign and verify RS256/HS256 JSON Web Tokens, and architect secure access and refresh token lifecycles..
Strict Schema Validation with express-validator and Zod
Implement declarative, type-safe request validation pipelines using Zod and express-validator to intercept malicious payloads before hitting controllers.
Production Security Hardening: Helmet, CORS & CSP
Configure production HTTP security headers with Helmet, implement strict Cross-Origin Resource Sharing (CORS) rules, and prevent Clickjacking, MIME sniffing, and XSS.
Cryptographic Hashing & Stateless JWT Token Lifecycles
Implement Argon2id/bcrypt password hashing, sign and verify RS256/HS256 JSON Web Tokens, and architect secure access and refresh token lifecycles.
Distributed Rate Limiting & Brute-Force Protection
Mitigate DDoS attacks and credential stuffing using token bucket algorithms, Redis-backed distributed rate limiters, and progressive IP bans.
Module 5: Data Persistence, Transactions & Production REST API Architecture
4 Lessons • ~5.9 Study Hours (0.59 CEUs)Welcome to Module 5: Data Persistence, Transactions & Production REST API Architecture. In this section of the curriculum, learners dive deep into foundational and advanced principles designed for production application. This module covers: Master database drivers for MongoDB and PostgreSQL, configure robust connection pools, handle transient connection drops, and avoid connection pool starvation.; Design high-performance database schemas, implement compound and TTL indexes, eliminate N+1 query bottlenecks, and analyze query execution plans.; Implement ACID transactions in MongoDB and PostgreSQL, handle concurrent writes using optimistic locking, and prevent race conditions in financial operations..
Database Drivers, Connection Pools & ODM/ORM Essentials
Master database drivers for MongoDB and PostgreSQL, configure robust connection pools, handle transient connection drops, and avoid connection pool starvation.
Data Modeling, Indexing Strategies & Query Optimization
Design high-performance database schemas, implement compound and TTL indexes, eliminate N+1 query bottlenecks, and analyze query execution plans.
Atomic Multi-Document Transactions & Concurrency Control
Implement ACID transactions in MongoDB and PostgreSQL, handle concurrent writes using optimistic locking, and prevent race conditions in financial operations.
Production Service Architecture: Layering, Logging & Health Checks
Architect production Express applications using Service-Repository patterns, structured logging with Pino, liveness/readiness probes, and Prometheus metrics.
Event-Driven Node.js & TypeScript Progression
Continue advancing through the sequential curriculum stages of this academy track: