Not every request is idempotent and its not known when or why a request has failed. GETs are ok (in theory) but you can't retry a POST without risk of side effects.
I am a contractor and have been fixing shit large part of my career. non-idempotent POSTs are just about always at the top of the list of shit to fix immediately. To this day (30 years in) I do not understand how can someone design a system where POSTs are not idempotent… I mean I know why, the vast majority of people in our industry are just not good at what they do but still…
Yep. I worked in corporate back-office IT way before the web era. It was a requirement that every batch job be re-runable idempotently. So if it failed, you'd identify the bad data, excise it, rerun the job, and deal with the bad record in the morning.
bdangubic|7 days ago
SoftTalker|7 days ago
OptionOfT|7 days ago
https://news.ycombinator.com/item?id=16964907