The reason why my rants get posted 2 times simultaneously is that my mouse clicks two times on my one click. Try it yourself.

This aims at POST request!

1 - Fix your mouse
2 - Wrong tag
3 - Good point

Could this be due non-idempotency of the button events?

Yeah that's a devRant bug. But you can deal with it by deleting one of the double posts right after posting them.

You could Bypass Rate Limit by sending requests for posting 2 different rants at the same time.

@theabbie how about 5 at once. If 2 works, why not more?

@aviophile Try it

@theabbie how would one go about preventing that? asking for a friend.

@bananaerror Serverside denounce.

@Root oh i was already thinking server, and (in my specific case) i realised it would be handled by the db locking on INSERT preventing a COUNT from saying user hasnt posted any rants yet, so even sending 10 in one go would still get limited.

@bananaerror Atomic operations with a locker. Look up mutexes. :)

Actually, even client-side button debouncing would prevent accidental double posting, though of course not deliberate manipulation.

@Fast-Nop of course, but implementing one without the other is silly sauce.

@bananaerror @Fast-Nop @Root
It can be done with simple javascript also

@Eklavya That's what "client-side debouncing" means.