Kas saaksid anda näiteid idempotentsetest HTTP-päringutest?

Idempotent HTTP requests are those that, when repeated, do not change the state of the server after the first call.

Examples of idempotent HTTP methods:

• GET — retrieve a resource. Repeated requests do not modify data.
• PUT — update a resource. Sending the same PUT multiple times results in the same state.
• DELETE — delete a resource. Repeated DELETE calls on the same resource do not change the state (the resource is already deleted).
• HEAD — similar to GET, but without a response body, also idempotent.

Example:

PUT /users/123 HTTP/1.1
Content-Type: application/json

{"name": "Иван"}

Sending this request multiple times will result in the user with id 123 having the name "Иван" — the state does not change after the first request.