409 error = "Conflict." Duh. But why?
It’s often a race condition—like two people trying to book the last concert ticket.
If you’re coding, try implementing optimistic locking. Or just retry the request after a small delay.
For debugging, check out Swagger UI or Insomnia. They make it easier to see what’s being sent/received.
It’s often a race condition—like two people trying to book the last concert ticket.
If you’re coding, try implementing optimistic locking. Or just retry the request after a small delay.
For debugging, check out Swagger UI or Insomnia. They make it easier to see what’s being sent/received.