What components need to be included in a request to ensure stateless interaction?

To ensure stateless interaction on the server side in an HTTP request, all data necessary for processing the request must be included, as the server does not store information about previous requests. This typically includes:

• Authentication data (e.g., token in the Authorization header) — so the server can identify the user with each request.
• Request parameters (in the URL or request body) — all data needed to perform the operation.
• Headers describing the request context (e.g., Content-Type, Accept).

Example of a header with a token:

GET /api/data HTTP/1.1
Host: example.com
Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...
Accept: application/json

Thus, each request contains all the necessary information for processing without relying on server state.