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what are the HTTP idempotent and non-idempotent methods available as per RFC7231 by group?

methods: 

GET, POST, PUT, OPTIONS, HEAD, DELETE, TRACE, CONNECT
sfbayman
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    Possible duplicate of [What is an idempotent operation?](http://stackoverflow.com/questions/1077412/what-is-an-idempotent-operation) – kryger Oct 04 '15 at 18:30
  • @kryger it is not duplicate. I did not explain what is an idempotent operation. If you check, my answer so precise for a simple question. Hope this helps. – sfbayman Oct 05 '15 at 05:59

1 Answers1

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Idempotent http methods:

GET, PUT, OPTIONS, HEAD, DELETE, TRACE

Non-Idempotent http methods:

POST, CONNECT

Reference: Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content

Community
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sfbayman
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  • In addition to the idempotent and non-idempotent HTTP verbs which have already been covered. I want to clarify that it is extremely important to note that these VERBS are not inherently idempotent or non-idempotent. Making them behave in a way that honors the spec and/or RESTful architecture practices is a side-effect of the user code. So please if you are making an API be aware to design in a way that honors the idempotency of the target VERB. And likewise if working with a third party API. Don't take for granted that hey may have "did it wrong". – iHazCode Jan 28 '18 at 18:44