You can make it idempotent again by requiring API users to use an If-Match heade... | Hacker News

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		thexa4 on Nov 22, 2019 \| parent \| context \| favorite \| on: Microsoft REST API Guidelines You can make it idempotent again by requiring API users to use an If-Match header with the ETag of the state they're currently expecting. Also allows you to implement optimistic concurrency. See: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/If...

fyp on Nov 23, 2019 [–]

I said this in another comment and got downvoted too. Can the downvoters explain what they are downvoting for? What's wrong with if-match?

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