01
REST API Design
// ...RESTful principles
ResourcesHTTP methodsStatus codes
Express/Fastify REST API
Build a standalone REST API backend consumed by your Next.js frontend. Industry-standard architecture.
RESTful principles
Backend framework basics
Request pipeline
Input validation with Zod
Scalable data endpoints
Authentication strategies
Token-based auth
Security essentials
Swagger/OpenAPI
Testing with Supertest
Connect Next.js to API
Products, cart, orders with OpenAPI
Frontend consuming the API
Visual API designer
20 minToken decode/verify tool
10 min