Backend & APIs
Learn NestJS — free and paid courses, roadmaps
NestJS brings structure to Node.js: modules, dependency injection, guards and decorators on top of TypeScript. On CodeWithJay you can follow a full NestJS build of an AI e-commerce backend — Prisma and PostgreSQL, JWT and refresh tokens, role-based access, testing with Jest, semantic search and AI agents — alongside short lessons on lifecycle hooks, DI scopes and circular dependencies.
NestJS mini courses
Short, free lessons on one NestJS idea at a time.
FreeDon't use Message Patterns for everything! 💀 #programming #nestjs #shorts
1 short
FreeThis NestJS plugin trick changes everything 🤯 #nestjs #devlife #coding
1 short
FreeNestJS lifecycle hooks explained in 60s #nestjs #tutorial #shorts
1 short
FreeFix NestJS Circular Dependencies in 2 Minutes #nestjs #coding
1 short
FreeRolesGuard Does the Heavy Lifting #nestjs #tutorial #codewithjay
1 short
FreeDI scopes in NestJS explained—the mistake you're making #Tutorial #WebDev
1 short
Free12 Weeks to Being Hired as an AI Engineer #AI #CareerGrowth
1 short
FreeThe BEST Node.js YouTube Course (2024 Edition)
1 short
Free NestJS video tutorials
Full-length free lessons from the CodeWithJay YouTube channel.
Free videoHow to Build an AI Shopping Agent with NestJS (Tool Calling + Guardrails) – Ep 13
Free on YouTube
Free videoBuild AI Chat with Semantic Search in NestJS (Streaming + Smart Router) – Ep 12
Free on YouTube
Free videoSemantic Search with OpenSearch & Embeddings in NestJS (Step by Step) – Ep 11
Free on YouTube
Free videoBuild an Orders API in NestJS: Nested Prisma Writes and Server-Side Totals E-10
Free on YouTube
Free videoNestJS Auth Part 3: Roles Decorator, RolesGuard and Seller-Only Routes: E9
Free on YouTube
Free videoNestJS Unit Testing with Jest: Mock PrismaService and Test JWT Auth e8
Free on YouTube
Free videoThe Only Way to Handle Refresh Tokens in NestJS (Production Guide) E-7
Free on YouTube
Free videoNest.js Seeding & Validation: Stop Wasting Time! : E-5
Free on YouTube
Free videoBuilding a Products REST API in NestJS: From Database to JSON Response: E-4
Free on YouTube
Free videoPrisma ORM with NestJS: Creating Your First Database Table Without Writing SQL E-3
Free on YouTube
Free videoNestJS + PostgreSQL with Docker: The Fast Way - E2
Free on YouTube
Free videoAI E-Commerce Platform Full Build: NestJS + AI Agent + React + Kubernetes (Course Roadmap)
Free on YouTube
NestJS learning FAQ
- Can I learn NestJS for free on CodeWithJay?
- Yes. CodeWithJay currently has 8 free mini courses and 12 free video lessons on NestJS. Free courses need only a free account; mini courses and videos need no account at all.
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