What makes a good RESTful API design? What are REST constraints?

REST has 6 constraints: client-server separation, statelessness, cacheability, uniform interface, layered system, code-on-demand. Good REST APIs use proper HTTP methods, meaningful URIs, and consistent error responses.

How does JWT authentication work?

JWT (JSON Web Token) is a self-contained token with Header.Payload.Signature. The server signs the payload with a secret; future requests include the token; the server validates the signature without DB lookup.

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Web Backend & APIs

15 Questions

RESTful API design, authentication, Node.js patterns, microservices, security, and backend best practices.

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🗄️ Database & SQL

🐳 DevOps & Docker

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NotesREST vs GraphQL: Complete Comparison QuizGraphQL Essentials Article7 Common API Security Vulnerabilities (and How to Fix Them)ArticleBuild a Secure JWT Authentication System in Node.js (2026)ArticleREST API vs GraphQL vs gRPC: Which to Choose in 2026?NotesHTTP Status Codes & Methods Reference

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