Stateless

In REST principles, the server will not keep any state about the client session on the server side; hence, it's stateless. If two calls are made to the server from a single client, the server will not identify whether both the calls are from the same client or not. As far as the server knows, every request is independent and new. Based on the URL, HTTP headers, and request body, including the parameters, the operation might be changed on the server side.