Idempotency

By Deane Barker on May 28, 2009

PUT or POST: The REST of the Story: A good word to know.

The crux of the issue comes down to a concept known as idempotency. An operation is idempotent if a sequence of two or more of the same operation results in the same resource state as would a single instance of that operation.

Good article too, if you’re an HTTP protocol geek.

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