What components are included in the principles of REST architecture?

The principles of REST architecture include the following key components:

• Client-server architecture: separation of user interface and data storage to enhance scalability.
• Statelessness: each request from the client to the server must contain all the necessary information; the server does not store state between requests.
• Caching: responses should explicitly indicate whether they can be cached to improve performance.
• Uniform interface: standardized methods of interaction (e.g., HTTP methods GET, POST, PUT, DELETE).
• Layered system: architecture can consist of multiple layers that do not know about the layers above or below.
• Code on demand (optional): the server can transmit executable code to the client to extend functionality.

These components provide flexibility, scalability, and simplicity of interaction in RESTful services.