What principles of REST applications do you know?

Principles of REST applications:

• Client-server architecture: the client and server are separated, allowing independent development.
• Stateless: each request from the client to the server must contain all the necessary information; the server does not store state between requests.
• Cacheability: server responses can be cached to improve performance.
• Uniform interface: a standard set of HTTP methods (GET, POST, PUT, DELETE, etc.) and standardized data formats (e.g., JSON) are used.
• Layered system: the architecture can have multiple layers (proxies, load balancers, etc.) that do not affect client-server interaction.
• Code on demand (optional): the server can transfer executable code (e.g., scripts) to the client, but this is rarely used.

These principles help create scalable, simple, and maintainable web services.