Guide
Idempotency
Use idempotency keys to retry create requests safely without creating a duplicate calculation, transaction, or batch.
Retry the same request safely
Send an idempotency key with every create request. If the request times out, resend the same body with the same key. The API returns the original result instead of creating another resource.
Request headerHTTP
Idempotency-Key: order-1001-calcKeys must contain 8–255 safe ASCII characters. Use a different key for each new operation. Reusing a key with a different request body returns 409 idempotency_conflict.