v1
latestOpenAPI 3.0.02026-07-263118119.8 KBgetTransactionByIdempotencyKey
Fetches the original transaction response by the idempotency key used during the POST /v2/transaction request.
Security Behavior
To prevent information leakage, this endpoint returns an empty object {} in all negative cases — including when the idempotency key does not exist and when the key exists but belongs to a different merchant. Callers cannot distinguish between the two scenarios.
Loss of Reference Behavior
The idempotency key can reference the transaction only until the TTL expires. The current TTL is 1 day. After that, the transaction may exist but cannot be retrieved by the idempotency key.
Headers
A merchant scoped token.
Response
Returns the transaction response originally stored for this idempotency key, or an empty object if no record is found or the key belongs to a different merchant.
Example response
{}