Get It Done

HTTP 400idempotency_key_missing

Idempotency-Key header required

An Idempotency-Key was required for this call but none was supplied or it was malformed.

Likely causes

The header was omitted where the client library expected one.
The header value was empty or longer than 255 characters.

How to fix

Send an `Idempotency-Key` header (1–255 visible ASCII characters; a UUID works well).
Reuse the SAME key when retrying the SAME request to replay the first result.

Example response

application/problem+json

{
  "type": "https://nowgetitdone.com/docs/api/problems/idempotency-key-missing",
  "title": "Idempotency-Key header required",
  "status": 400,
  "code": "idempotency_key_missing",
  "request_id": "req_a1b2c3d4"
}

The type field resolves to this page: https://nowgetitdone.com/docs/api/problems/idempotency-key-missing

Related

Idempotency →