Idempotent consumer pattern – A piece of the eventual consistency puzzle | Hacker News

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		Idempotent consumer pattern – A piece of the eventual consistency puzzle (pradeeploganathan.com)
		47 points by pradeepl on July 25, 2019 \| hide \| past \| favorite \| 3 comments

steelaz on July 25, 2019 | [–]

I found these two articles on idempotency very well written:

https://brandur.org/http-transactions https://brandur.org/idempotency-keys

ludston on July 25, 2019 | | [–]

Keep in mind the race condition in the flow-chart. The algorithm as described will not be safe if the same key is updated concurrently.

klysm on July 25, 2019 | [–]

A key means of obtaining total order broadcast

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