REST constraints

REST (Representational State Transfer) constraints are guidelines for designing web services that are scalable, simple, and efficient. They include using standard HTTP methods like GET, POST, PUT, and DELETE for operations; stateless interactions where each request contains all needed information; a uniform interface for consistency; and layered architecture that allows intermediaries like caches or proxies to improve performance. These constraints help ensure that web services are easy to develop, maintain, and evolve while supporting reliable communication between clients and servers.