HTTP 422 · problem type
idempotency-key-reuse
Idempotency key reused.
The Idempotency-Key header was already used in the last 24 hours with a different request body.
What to do
Generate a new key for every distinct request; reuse a key only to retry the same body.
{
"type": "https://linkspect.com/problems/idempotency-key-reuse",
"title": "Idempotency key reused",
"status": 422,
"detail": "…",
"instance": "/v1/checks"
}