HTTP REQUEST Explained

https://www.w3schools.com/tags/ref_httpmethods.asp

https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST

https://tools.ietf.org/html/rfc7231#page-21

The HTTP PUT method only allows complete replacement of a document

• PUT is idempotent: calling it once or several times successively has the same effect (that is no side effect),
• the enclosed entity SHOULD be considered as a modified version of the one residing on the origin server

The HTTP POST method sends data to the server

• where successive identical POST may have additional effects, like passing an order several times.

HTTP PATCH request method applies partial modifications to a resource