Google cache, as the site is having trouble for me at the moment: http://webcach...

pcthrowaway · on Jan 23, 2022

Obviously GET is not idempotent because as we see, the state can change if called repeatedly /s

nivertech · on Jan 23, 2022

GET supposed to be nullipotent[1] and safe[2].

It can also be implemented as a pure function without side-effects if you provide current time as a query parameter.

Reliable communication over the network and availability issues are different concerns. Though request idempotency can help with retries for command/mutations. Queries are usually nullipotent, so they're can be simply retried.

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[1] https://en.wiktionary.org/wiki/nullipotent

[2] https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP