[CS] POST, PUT, PATCH 메소드의 차이점

method		멱등성(idempotency)	RFC
POST	생성 (서버에서의 다양한 작업)	X	The POST method requests that the target resource process the representation enclosed in the request according to the resource's own specific semantics.
PUT	전체 업데이트	O	The target resource in a POST request is intended to handle the enclosed representation according to the resource's own semantics, whereas the enclosed representation in a PUT request is defined as replacing the state of the target resource.
PATCH	부분 업데이트	X	The PATCH method requests that a set of changes described in the request entity be applied to the resource identified by the Request-URI.