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Become a Node.js Developer
Master async Node.js to build high-throughput APIs and event-driven services at scale.
CREATED BY
A
Arnav K. [PLACEHOLDER] ★ 5.0
SSE at MegaMart Tech | 8+ years of experience
About this Path
For developers who know JavaScript and want to build production-quality backend services with Node.js. You will move through the event loop, streams, and async patterns into REST and GraphQL APIs, authentication, message queues, and deployment. By the end you will understand how senior engineers reason about Node.js performance and reliability.
Path Overview
Intermediate LevelCertificate of CompletionAbout 55 hours to completeEnglish language18+ curated videosLearn online at your own pace5 modules with resourcesGamified & interactive
Path Curriculum
Event loop phases and the libuv thread pool
Trace call stack, microtask queue, and macrotask phases with live examples.
Promises, async/await, and error propagation
Chain async operations, handle rejection correctly, and avoid unhandled promise pitfalls.
Streams and buffers for large payloads
Pipe readable to writable streams, use Transform streams, and avoid memory blowups.
Worker threads and cluster for CPU-bound work
Offload CPU-intensive tasks to worker threads and scale accepts with the cluster module.
Layered architecture: routes, services, repositories
Separate concerns cleanly so business logic stays testable and framework-independent.
Input validation with Zod and express-validator
Parse and validate request bodies at the boundary before they touch your service layer.
Error handling middleware and RFC 7807 responses
Centralise error handling with typed AppError classes and structured problem responses.
Rate limiting, Helmet, and CORS hardening
Add express-rate-limit, secure HTTP headers with Helmet, and lock down CORS origins.
JWT access and refresh token strategy
Issue short-lived access tokens, rotate refresh tokens, and revoke sessions on logout.
Passport.js local and OAuth2 strategies
Wire Google OAuth2 and local strategy with Passport, handle callback URLs and state.
Password hashing and brute-force protection
Hash with bcrypt, enforce strong passwords, and block credential-stuffing with rate limits.
Apollo Server 4 schema-first API design
Define SDL types, resolvers, and context; use code-first vs SDL-first trade-offs.
DataLoader for batching and N+1 prevention
Batch database calls per request using DataLoader to eliminate resolver fan-out queries.
Redis caching with ioredis
Cache expensive queries, set TTLs, and invalidate on write with cache-aside pattern.
Background jobs with BullMQ
Define queues, workers, and retry strategies for email, image, and webhook processing.
Integration testing with Vitest and Supertest
Spin up an Express app in-process, seed a test database, and assert HTTP responses.
Structured logging with Pino
Replace console.log with Pino, add request-id context, and ship logs to Loki or Datadog.
Dockerising Node.js with multi-stage builds
Produce slim production images, run as non-root, and leverage layer caching for speed.
GitHub Actions CI pipeline for Node.js
Lint, test, build Docker image, and push to a registry on every pull request merge.
What you'll learn
- ✓Explain the Node.js event loop, libuv thread pool, and non-blocking I/O in interviews.
- ✓Build a production-quality REST API with Express 5 using layered architecture patterns.
- ✓Implement authentication and authorisation with Passport.js, JWTs, and refresh-token rotation.
- ✓Design and expose a GraphQL API using Apollo Server 4 with DataLoader for N+1 prevention.
- ✓Integrate Redis for caching and BullMQ for reliable background job processing.
- ✓Write integration tests with Vitest and Supertest and ship with a Docker and GitHub Actions pipeline.