Stateless

The term stateless means that the state in which the application remains for a particular time may not persist to the next moment. A RESTful service does not maintain the application's state, and thus it is stateless.

A request in a RESTful service does not depend on a past request. The service treats each request independently. On the other hand, a stateful service needs to record the application's current state when the request is performed so that it can act as required for the next request.

Moreover, because of an absence of these complications, stateless services become very easy to host. As we need not worry about the state of the application, it becomes easy to implement, and maintenance becomes smooth.