Standards to help reduce duplicate transmissions Idempotency is a method particular to REST APIs with HTTP/HTTPS protocols that makes sure the result does not change even if applied multiple times. If you submit multiple identical requests sequentially, only the first request would get a response that does not change with the subsequent, incoming requests. Standard HTTP methods and nature of idempotencyMethodIs the method idempotentDoes it modify the server's state?HEADYesNoOPTIONSYesNoGETYesNoPOSTNoYesPUTYesYesPATCHNoYesDELETEYesYes