• A group of software architecture design constraints that bring about efficient, reliable, and scalable distributed systems. A system is called RESTful when it adheres to those constraints. The basic idea of REST is that a resource, e.g., a document, is transferred with its state and relationships (hypertext) via well-defined, standardized operations and formats. Often APIs or services call themselves RESTful when they directly modify a type of document as opposed to triggering actions elsewhere. ← MDN Web Docs

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