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Re:What Is Idempotence? by rswail on Friday April 05, 2019 @08:47AM (#19581955)
GET is only idempotent in terms of the effect of the client calling the server.

The server is free to change the state of a resource at any time without informing the client.

What a compliant server cannot do is change the state of a resource as a result of receiving the GET request from the client.

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