Also don’t wanna sound grumpy but I don’t understand what’s novel or hard about this problem either. Every single e-commerce cite has the same struggle to face

Also don’t wanna sound grumpy but I don’t understand what’s novel or hard about this problem either. Every single e-commerce cite has the same struggle to face and they do it just fine. Of course there’s a period between storing the idempotency key (essentially beginning the transaction) and doing processing. Maybe it’s just me but this sounds like some rediscovering a very very common problem that been solved thousands of times over.