Definition:REST API
Representational State Transfer (REST) is an architectural style for designing networked applications over HTTP using standard verbs (GET, POST, PUT, DELETE).
Detailed Technical Explanation
Business Perspective
REST is the global industry standard for integrating enterprise web platforms, mobile apps, and third-party software vendor integrations.
Technical Perspective
REST APIs operate over HTTP/1.1 and HTTP/2, using standard headers, JSON payloads, and edge CDN caching.
Real-World Example
Exposing a `/api/v1/orders` endpoint where `GET` fetches orders and `POST` creates a new order in PostgreSQL.
Common Architectural Mistakes
- ✗Non-stateless sessions: Storing server-side session state on single API nodes instead of using stateless JWT tokens or Redis caches.
Ecosystem Integration
Frequently Asked Questions
Why is REST popular?
Because it relies on standard HTTP infrastructure, making it universal, cached easily, and compatible with all modern programming languages.
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